THCPU / Thunder Bridge Capital Partners IV Inc - Units (1 Ord Share Class A & 1/5 War) - SEC Filings, Annual Report, Proxy Statement

Thunder Bridge Capital Partners IV Inc - Units (1 Ord Share Class A & 1/5 War)
US ˙ NASDAQ ˙ US88605L2060
THIS SYMBOL IS NO LONGER ACTIVE

Basic Stats
CIK 1843993
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Thunder Bridge Capital Partners IV Inc - Units (1 Ord Share Class A & 1/5 War)
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
December 23, 2024 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40555 Thunder Bridge Capital Partners IV, Inc.* (Exact name of registran

December 12, 2024 SC 13D/A

THCP / Thunder Bridge Capital Partners IV Inc. / Simanson Gary A - AMENDMENT NO. 3 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea0224652-13da3simathunder4.htm AMENDMENT NO. 3 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L 107 (CUSIP Number) Gary A. Simans

December 10, 2024 EX-4.1

FORM OF WARRANT ASSUMPTION AND AMENDMENT AGREEMENT

Exhibit 4.1 FORM OF WARRANT ASSUMPTION AND AMENDMENT AGREEMENT This Warrant Assumption and Amendment Agreement (this “Agreement”) is made as of December 10, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (the “Company”), Coincheck Group N.V., a Dutch public limited liability company (“PubCo”), and Continental Stock Transfer & Trust Company, a New York limited p

December 10, 2024 EX-99.1

Thunder Bridge Capital Partners IV, Inc. and Coincheck Group N.V. Announce Closing of Business Combination Coincheck Group N.V. ordinary shares and warrants to begin trading on Nasdaq on December 11, 2024 as “CNCK” and “CNCKW,” respectively.

Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. and Coincheck Group N.V. Announce Closing of Business Combination Coincheck Group N.V. ordinary shares and warrants to begin trading on Nasdaq on December 11, 2024 as “CNCK” and “CNCKW,” respectively. Great Falls, Va. and Amsterdam, Netherlands – December 10, 2024 – Coincheck Group N.V. (“Coincheck”), a Dutch public limited liability company an

December 10, 2024 8-K

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

December 6, 2024 EX-2.1

BUSINESS COMBINATION AGREEMENT WAIVER

Exhibit 2.1 BUSINESS COMBINATION AGREEMENT WAIVER This BUSINESS COMBINATION AGREEMENT WAIVER (this “Waiver”), is entered into as of December 6, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) (“PubCo”), M1 Co G.K., a Japanese

December 6, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 Thunder Bridge C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpor

December 6, 2024 EX-10.1

NON-REDEMPTION AND SHARE FORWARD AGREEMENT

Exhibit 10.1 NON-REDEMPTION AND SHARE FORWARD AGREEMENT This NON-REDEMPTION AND SHARE FORWARD AGREEMENT (this “Agreement”) is entered into as of December 4, 2024 by and among (i) Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (together with its successors, “SPAC”), (ii) Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakeli

December 6, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 Thunder Bridge C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpor

December 6, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 Thunder Bridge C

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 (Commission File No.: 333-279165) Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) On December 6, 2024, Thunder Bridge Capital Partners IV, Inc. filed the attached Form 8-K: UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Purs

December 6, 2024 EX-2.1

BUSINESS COMBINATION AGREEMENT WAIVER

Exhibit 2.1 BUSINESS COMBINATION AGREEMENT WAIVER This BUSINESS COMBINATION AGREEMENT WAIVER (this “Waiver”), is entered into as of December 6, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) (“PubCo”), M1 Co G.K., a Japanese

December 6, 2024 EX-10.1

NON-REDEMPTION AND SHARE FORWARD AGREEMENT

Exhibit 10.1 NON-REDEMPTION AND SHARE FORWARD AGREEMENT This NON-REDEMPTION AND SHARE FORWARD AGREEMENT (this “Agreement”) is entered into as of December 4, 2024 by and among (i) Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (together with its successors, “SPAC”), (ii) Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakeli

December 6, 2024 EX-10.2

AMENDMENT TO COMPANY SUPPORT AGREEMENT

Exhibit 10.2 AMENDMENT TO COMPANY SUPPORT AGREEMENT This AMENDMENT TO COMPANY SUPPORT AGREEMENT (this “Amendment”), is entered into as of December 6, 2024, by and among TBCP IV, LLC, a Delaware limited liability company (“Thunder Bridge Sponsor”), Monex Group, Inc., a Japanese joint stock company (kabushiki kaisha) (“Monex” or the “Equityholder”), and Coincheck Group B.V., a Dutch private limited

December 6, 2024 EX-10.2

AMENDMENT TO COMPANY SUPPORT AGREEMENT

Exhibit 10.2 AMENDMENT TO COMPANY SUPPORT AGREEMENT This AMENDMENT TO COMPANY SUPPORT AGREEMENT (this “Amendment”), is entered into as of December 6, 2024, by and among TBCP IV, LLC, a Delaware limited liability company (“Thunder Bridge Sponsor”), Monex Group, Inc., a Japanese joint stock company (kabushiki kaisha) (“Monex” or the “Equityholder”), and Coincheck Group B.V., a Dutch private limited

December 4, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: December 4, 2024 2024年12月 最終更新日: 4日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について * English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載

November 27, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

November 27, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 27, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 27, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 27, 2024 Thunder Bridge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 27, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 22, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

November 22, 2024 EX-99.1

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Exhibit 99.1 1 CÈó›ÁŽ›Ø ɸɶɸɺ 0Âó›ÜãÈØ V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼ 0Â¨ÈØÁ‚ã¯È ‚• w›Ø› ãÈ (¯Â• 0ã 0 È›ã¯È ô¯ã ã› Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯È ‚©Ø››Á›Âãʍ ‚Ü ‚Á›Â•›•ʍ ‚ÁÈ© ȯ›¹ʍ 0ʒ ʞʪȯ›¹ʫʟʍ ȯ›¹ *ØÈçÕ ʒtʒ ʞʪ*ʫʟʍ dç•›Ø د•©› ‚կゼ V‚Øã›ØÜ 0tʍ 0ʒ ʞʪdç•›Ø د•©› 0tʫʟ ‚• Èã›ØÜ ô¯ã Ø›©‚Ø•Ü ãÈ ã›¯Ø ÕØÈÕÈÜ›• Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯ÈÂʍ ã› Õ‚Øã¯›Ü ‚ó› ¨¯¼›• ‚ Ø›©¯ÜãØ‚ã¯È Üã‚ã›Á›Âã È (ÈØÁ

November 22, 2024 425

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Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 22, 2024 1 CÈó›ÁŽ›Ø  ɸɶɸɺ 0Âó›ÜãÈØ  V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼  0Â¨ÈØÁ‚ã¯È  ‚•  w›Ø›  ãÈ  (¯Â•  0ã 0ț

November 22, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 22, 2024 Thunder Bridge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 22, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 22, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 22, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 22, 2024 EX-99.1

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Exhibit 99.1 1 CÈó›ÁŽ›Ø ɸɶɸɺ 0Âó›ÜãÈØ V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼ 0Â¨ÈØÁ‚ã¯È ‚• w›Ø› ãÈ (¯Â• 0ã 0 È›ã¯È ô¯ã ã› Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯È ‚©Ø››Á›Âãʍ ‚Ü ‚Á›Â•›•ʍ ‚ÁÈ© ȯ›¹ʍ 0ʒ ʞʪȯ›¹ʫʟʍ ȯ›¹ *ØÈçÕ ʒtʒ ʞʪ*ʫʟʍ dç•›Ø د•©› ‚կゼ V‚Øã›ØÜ 0tʍ 0ʒ ʞʪdç•›Ø د•©› 0tʫʟ ‚• Èã›ØÜ ô¯ã Ø›©‚Ø•Ü ãÈ ã›¯Ø ÕØÈÕÈÜ›• Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯ÈÂʍ ã› Õ‚Øã¯›Ü ‚ó› ¨¯¼›• ‚ Ø›©¯ÜãØ‚ã¯È Üã‚ã›Á›Âã È (ÈØÁ

November 19, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

November 15, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2024 Thunder Bridge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 15, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2024 Thunder Bridge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 15, 2024 425

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Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 15, 2024 1 CÈó›ÁŽ›Ø ɸɶɸɺ 0Âó›ÜãÈØ V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼ 0Â¨ÈØÁ‚ã¯È ‚• w›Ø› ãÈ (¯Â• 0ã 0È›ã¯È ô¯ãã› Žçܯ›Ü

November 15, 2024 EX-99.1

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November 15, 2024 EX-99.1

1 CÈó›ÁŽ›Ø ɸɶɸɺ 0Âó›ÜãÈØ V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼ 0Â¨ÈØÁ‚ã¯È ‚• w›Ø› ãÈ (¯Â• 0ã 0È›ã¯È ô¯ãã› Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯È ‚©Ø››Á›Âãʍ ‚Ü ‚Á›Â•›•ʍ ‚ÁÈ© ȯ›¹ʍ 0ʒ ʞʪȯ›¹ʫʟʍ ȯ›¹ *ØÈçÕ ʒtʒ ʞʪ*ʫʟʍ dç•›Ø د•©› ‚կゼV‚Øã›ØÜ0tʍ 0ʒ ʞ

Exhibit 99.1 1 CÈó›ÁŽ›Ø ɸɶɸɺ 0Âó›ÜãÈØ V؛ܛÂã‚ã¯È 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼ 0Â¨ÈØÁ‚ã¯È ‚• w›Ø› ãÈ (¯Â• 0ã 0È›ã¯È ô¯ãã› Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯È ‚©Ø››Á›Âãʍ ‚Ü ‚Á›Â•›•ʍ ‚ÁÈ© ȯ›¹ʍ 0ʒ ʞʪȯ›¹ʫʟʍ ȯ›¹ *ØÈçÕ ʒtʒ ʞʪ*ʫʟʍ dç•›Ø د•©› ‚կゼV‚Øã›ØÜ0tʍ 0ʒ ʞʪdç•›Ø د•©› 0tʫʟ ‚• Èã›ØÜ ô¯ãØ›©‚Ø•Ü ãÈã›¯Ø ÕØÈÕÈÜ›• Žçܯ›ÜÜ ÈÁŽ¯Â‚ã¯ÈÂʍ ã› Õ‚Øã¯›Ü ‚ó› ¨¯¼›•‚ Ø›©¯ÜãØ‚ã¯È Üã‚ã›Á›Âã È (ÈØÁ ( ʣ ɺ

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUND

November 13, 2024 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 13, 2024 Announcement regarding the Registration Statements for Nasdaq listing of Coincheck Group B.V. being Declared Effective

November 12, 2024 EX-99.1

Thunder Bridge Capital Partners IV, Inc. Announces Effectiveness of Registration Statement and Special Meeting Date for Proposed Business Combination with Coincheck, Inc. Stockholder Meeting of Thunder Bridge Capital Partners IV, Inc. Scheduled for D

Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. Announces Effectiveness of Registration Statement and Special Meeting Date for Proposed Business Combination with Coincheck, Inc. Stockholder Meeting of Thunder Bridge Capital Partners IV, Inc. Scheduled for December 5, 2024 To View the Meeting Documents, Please Visit https://www.cstproxy.com/thunderbridgecapitalpartnersiv/2024/ For Any Questio

November 12, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024 Thunder Bridge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 12, 2024 EX-99.1

Thunder Bridge Capital Partners IV, Inc. Announces Effectiveness of Registration Statement and Special Meeting Date for Proposed Business Combination with Coincheck, Inc. Stockholder Meeting of Thunder Bridge Capital Partners IV, Inc. Scheduled for D

Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. Announces Effectiveness of Registration Statement and Special Meeting Date for Proposed Business Combination with Coincheck, Inc. Stockholder Meeting of Thunder Bridge Capital Partners IV, Inc. Scheduled for December 5, 2024 To View the Meeting Documents, Please Visit https://www.cstproxy.com/thunderbridgecapitalpartnersiv/2024/ For Any Questio

November 12, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpo

November 12, 2024 DEFM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

November 6, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 6, 2024 2024年11月 最終更新日: 6日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について * English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載

October 15, 2024 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 11, 2024 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC trans

October 11, 2024 EX-99.1

2

Exhibit 99.1 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, October 11, 2024 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Yuko Seimei; the “Co

October 11, 2024 EX-99.1

2

Exhibit 99.1 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, October 11, 2024 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Yuko Seimei; the “Co

October 11, 2024 EX-2.1

Third Amendment to Business Combination Agreement, dated as of October 8, 2024, by and among the Coincheck Business Combination Parties. (1)

Exhibit 2.1 EXECUTION VERSION THIRD AMENDMENT TO BUSINESS COMBINATION AGREEMENT This THIRD AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of October 8, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprak

October 11, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 8, 2024 THUNDER BRIDGE CA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 8, 2024 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpora

October 11, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 8, 2024 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpora

October 11, 2024 EX-2.1

Third Amendment to Business Combination Agreement, dated as of October 8, 2024, by and among Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc.

Exhibit 2.1 EXECUTION VERSION THIRD AMENDMENT TO BUSINESS COMBINATION AGREEMENT This THIRD AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of October 8, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprak

October 3, 2024 425

2025 年 3 月期の月次開示情報 (速報)について

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 3, 2024 最終更新日: 2024年10月3日 コインチェック株式会社 2025 年 3 月期の月次開示情報 (速報)について * English is below 2025 年 3 月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、

September 16, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 11, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorp

September 4, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: September 4, 2024 2024年9月4 最終更新日:日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について * English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の

August 6, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 6, 2024 2024年8月5 最終更新日: 日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について *English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は

August 5, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporat

August 5, 2024 EX-99.1

1 ç©çÜã  ɸɶɸɺ :›ö‚  d›Âȼȩö  =›‚•›ØÜ¯Õ  (ÈØçÁ 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼  0Â¨ÈØÁ‚ã¯È  ‚•  w›Ø›  ãÈ  (¯Â•  0ã 0  È›ã¯È  ô¯ã  ã›  Žçܯ›ÜÜ  ÈÁŽ¯Â‚ã¯È  ‚©Ø››Á›Âãʍ  ‚Ü  ‚Á›Â•›•ʍ  ‚ÁÈ©  ȯ›¹ʍ  0ʒ  ʞʪȯ›¹ʫʟʍ 

Exhibit 99.1 1 ç©çÜã  ɸɶɸɺ :›ö‚  d›Âȼȩö  =›‚•›ØÜ¯Õ  (ÈØçÁ 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼  0Â¨ÈØÁ‚ã¯È  ‚•  w›Ø›  ãÈ  (¯Â•  0ã 0  È›ã¯È  ô¯ã  ã›  Žçܯ›ÜÜ  ÈÁŽ¯Â‚ã¯È  ‚©Ø››Á›Âãʍ  ‚Ü  ‚Á›Â•›•ʍ  ‚ÁÈ©  ȯ›¹ʍ  0ʒ  ʞʪȯ›¹ʫʟʍ  ȯ›¹  *ØÈçÕ  ʒtʒ  ʞʪ*ʫʟʍ  dç•›Ø  د•©›  ‚կゼ  V‚Øã›ØÜ  0tʍ  0ʒ  ʞʪdç•›Ø  د•©›  0tʫʟ  ‚•  Èã›ØÜ  ô¯ã  Ø

August 5, 2024 EX-99.1

1 ç©çÜã  ɸɶɸɺ :›ö‚  d›Âȼȩö  =›‚•›ØÜ¯Õ  (ÈØçÁ 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼  0Â¨ÈØÁ‚ã¯È  ‚•  w›Ø›  ãÈ  (¯Â•  0ã 0  È›ã¯È  ô¯ã  ã›  Žçܯ›ÜÜ  ÈÁŽ¯Â‚ã¯È  ‚©Ø››Á›Âãʍ  ‚Ü  ‚Á›Â•›•ʍ  ‚ÁÈ©  ȯ›¹ʍ  0ʒ  ʞʪȯ›¹ʫʟʍ 

Exhibit 99.1 1 ç©çÜã  ɸɶɸɺ :›ö‚  d›Âȼȩö  =›‚•›ØÜ¯Õ  (ÈØçÁ 2 ¯Ü¼‚¯Á›Ø ••¯ã¯È‚¼  0Â¨ÈØÁ‚ã¯È  ‚•  w›Ø›  ãÈ  (¯Â•  0ã 0  È›ã¯È  ô¯ã  ã›  Žçܯ›ÜÜ  ÈÁŽ¯Â‚ã¯È  ‚©Ø››Á›Âãʍ  ‚Ü  ‚Á›Â•›•ʍ  ‚ÁÈ©  ȯ›¹ʍ  0ʒ  ʞʪȯ›¹ʫʟʍ  ȯ›¹  *ØÈçÕ  ʒtʒ  ʞʪ*ʫʟʍ  dç•›Ø  د•©›  ‚կゼ  V‚Øã›ØÜ  0tʍ  0ʒ  ʞʪdç•›Ø  د•©›  0tʫʟ  ‚•  Èã›ØÜ  ô¯ã  Ø

August 5, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2024 Thunder Bridge Cap

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporat

July 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BR

July 23, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2024 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporati

July 8, 2024 EX-99.1

JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k)

EX-99.1 2 exhibit99.htm JOINT ACQUISITION STATEMENT EXHIBIT 99.1 JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing

July 8, 2024 SC 13G

THCP / Thunder Bridge Capital Partners IV Inc. / Ghisallo Capital Management LLC - THUNDER BRIDGE CAPITAL PARTNERS IV, INC. Passive Investment

SC 13G 1 p24-2318sc13g.htm THUNDER BRIDGE CAPITAL PARTNERS IV, INC. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 88605L107 (CUSIP Number) December 31, 2023 (Date of event whic

July 3, 2024 425

Filed by Coincheck Group B.V.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 3, 2024 Further announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC t

July 3, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 3, 2024 最終更新日:2024年7月3日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について *English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速報値で

July 2, 2024 EX-3.1

Second Amendment to Amended and Restated Certificate of Incorporation of the Company.

Exhibit 3.1 SECOND AMENDMENT TO THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF THUNDER BRIDGE CAPITAL PARTNERS IV, INC. Pursuant to Section 242 of the Delaware General Corporation Law Thunder Bridge Capital Partners IV, Inc. (the “Corporation”), a corporation organized and existing under the laws of the State of Delaware, does hereby certify as follows: 1. The name of the Corporation is

July 2, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 2, 2024 (June 26, 2024) Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction

June 21, 2024 SC 13G/A

THCP / Thunder Bridge Capital Partners IV Inc. / Sculptor Capital LP - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L107 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check t

June 13, 2024 425

Coincheck Announces Directors Change

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: June 13, 2024 [Press Release] June 12, 2024 Coincheck, Inc. Coincheck Announces Directors Change Coincheck, Inc. announces the following

June 11, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

June 6, 2024 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

June 6, 2024 CORRESP

THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066

THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066 June 6, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Catherine De Lorenzo and David Link Re: Thunder Bridge Capital Partners IV, Inc. Preliminary Proxy Statement on Schedule 14A Filed May 28, 2024 File No. 001-

June 5, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: June 5, 2024 最終更新日:2024年6月5日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について *English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速報値で

May 30, 2024 EX-99.1

2

Exhibit 99.1 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, May 29, 2024 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Yuko Seimei; the “Compan

May 30, 2024 EX-99.1

2

Exhibit 99.1 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, May 29, 2024 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Yuko Seimei; the “Compan

May 30, 2024 EX-2.1

Second Amendment to Business Combination Agreement, dated as of May 28, 2024, by and among the Coincheck Business Combination Parties. (1)

Exhibit 2.1 CONFIDENTIAL SECOND AMENDMENT TO BUSINESS COMBINATION AGREEMENT This SECOND AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of May 28, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkh

May 30, 2024 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 28, 2024 THUNDER BRIDGE CAPIT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 28, 2024 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporatio

May 30, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 28, 2024 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporatio

May 30, 2024 EX-2.1

Second Amendment to Business Combination Agreement, dated as of May 28, 2024, by and among Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc.

Exhibit 2.1 CONFIDENTIAL SECOND AMENDMENT TO BUSINESS COMBINATION AGREEMENT This SECOND AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of May 28, 2024, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkh

May 29, 2024 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 29, 2024 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transacti

May 28, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 21, 2024 425

Brilliantcrypto Token (BRIL,) the first IEO of a listed company’s subsidiary, will be available for purchase on May 27. - Coincheck IEO will begin accepting purchase applications from May 27th. The IEO is for a new crypto asset that will be used in t

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 21, 2024 【Press Release】 May 20, 2024 Coincheck, Inc. Brilliantcrypto Token (BRIL,) the first IEO of a listed company’s subsidiary,

May 15, 2024 EX-10.1

Amended and Restated Promissory Note, dated May 15, 2024 issued to TBCP IV, LLC.*

Exhibit 10.1 THIS AMENDED AND RESTATED PROMISSORY NOTE (THIS “NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) OR UNDER THE SECURITIES LAWS OF ANY STATE. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT AND APPLICABLE STATE SECU

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER B

May 8, 2024 425

Announcement Regarding the public filing etc. of Coincheck Group B.V. to Become Publicly Listed on Nasdaq Through a De-SPAC Transaction with Thunder Bridge Capital Partners IV, Inc.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 8, 2024 【Press Release】 May 8, 2024 Coincheck, Inc. Announcement Regarding the public filing etc. of Coincheck Group B.V. to Become

May 7, 2024 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 7, 2024 Thunder Bridge Capital Partners IV, Inc. Announces Public Filing of Registration Statement with the SEC for Proposed Busines

May 7, 2024 425

2024 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 7, 2024 最終更新日:2024年5月7日 コインチェック株式会社 2025年3月期の月次開示情報(速報)について * English is below 2025年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速報値で

May 1, 2024 425

Financial Results for Fiscal Year Ending March 31, 2024 April 25, 2024 Monex Group TSE Prime : 8698 1 Always a step ahead of the “Y” in “MONEY,” our name MONEX expresses our desire to embrace all people who are engaged at the forefront of our future.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 25, 2024 Financial Results for Fiscal Year Ending March 31, 2024 April 25, 2024 Monex Group TSE Prime : 8698 1 Always a step ahead

May 1, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 1, 2024 (April 26, 2024) THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction

April 3, 2024 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 3, 2024 最終更新日:2024年4月3日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速

April 1, 2024 EX-99.2

Amended Compensation Committee Charter.*

Exhibit 99.2 CHARTER OF THE COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS OF THUNDER BRIDGE CAPITAL PARTNERS IV INC. Adopted and effective on June 29, 2021 Amended on November 30, 2023 I. PURPOSE OF THE COMMITTEE The purposes of the Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of Thunder Bridge Capital Partners IV Inc. (the “Company”) shall be to oversee the

April 1, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-40555 THUNDER BRIDGE

April 1, 2024 EX-10.15

Promissory Note, dated March 28, 2024 issued to TBCP IV, LLC.*

Exhibit 10.15 THIS PROMISSORY NOTE (THIS “NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) OR UNDER THE SECURITIES LAWS OF ANY STATE. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS OR AN OP

April 1, 2024 EX-97.1

Policy Related to Recovery of Erroneously Awarded Compensation, adopted November 30, 2023.*

Exhibit 97.1 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. EXECUTIVE COMPENSATION CLAWBACK POLICY Effective as of October 2, 2023 The Board of Directors (the “Board”) of Thunder Bridge Capital Partners IV, Inc. (the “Company”) has adopted the following executive compensation clawback policy (this “Policy”). This Policy shall supplement any other clawback or compensation recovery policy or policies adop

April 1, 2024 EX-99.1

Amended Audit Committee Charter.*

Exhibit 99.1 CHARTER OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS OF THUNDER BRIDGE CAPITAL PARTNERS IV INC. Adopted and effective on June 29, 2021 Amended on November 30, 2023 I. PURPOSE OF THE COMMITTEE The purpose of the Audit Committee (the “Committee”) of the Board of Directors (the “Board”) of Thunder Bridge Capital Partners IV Inc. (the “Company”) is to oversee the accounting and financ

March 5, 2024 425

Coincheck and Fanpla entered into an agreement for an IEO 〜Aiming to Create an Economy of ‘Direct to Fan’ Connections Between Artists and Fans, and Make New Fan Experiences〜

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 5, 2024 Announcement of Subsidiary’s Release TOKYO, March 4, 2024 – Coincheck, Inc., a subsidiary of Monex Group, Inc., issued the

March 5, 2024 425

Monthly Disclosure

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 5, 2024 最終更新日:2024年3月5日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速

February 27, 2024 425

Circle and Coincheck to Partner on Expanding Access to USDC in Japan

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: February 27, 2024 Announcement of Subsidiary’s Release TOKYO, February 27, 2024 – Coincheck, Inc., a subsidiary of Monex Group, Inc., is

February 9, 2024 SC 13G/A

THCP / Thunder Bridge Capital Partners IV Inc. / Weiss Asset Management LP Passive Investment

SC 13G/A 1 thcp13ga31dec2023.htm =============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* THUNDER BRIDGE CAPITAL PARTNERS IV, INC. - (Name of Issuer) Class A Common Stock, par value $0.0001 per share - (Title of Class of Securiti

February 5, 2024 425

Monthly Disclosure Today we reported the following preliminary monthly disclosure information for the fiscal year ending March 31, 2024. The preliminary numbers in the tables below may be updated in the future.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: February 5, 2024 最終更新日 :2024年2月5日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の

January 30, 2024 425

Coincheck announced the business transfer of its virtual shareholders’meeting support service “Sharely” - The business will be transferred to Excite Holdings through a corporate separation (incorporation-type company split) -

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: January 30, 2024 Announcement of Subsidiary’s Release TOKYO, January 30, 2024 – Coincheck, Inc., a subsidiary of Monex Group, Inc., issu

January 9, 2024 425

2023 年 5 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: January 9, 2024 最終更新日:2024年1月9日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値

December 5, 2023 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: December 5, 2023 最終更新日:2023年12月5日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の

November 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUND

November 6, 2023 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 6, 2023 最終更新日:2023年11月6日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について *English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数

October 26, 2023 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 24, 2023 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpor

October 12, 2023 425

Monthly Disclosure

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 12, 2023 最終更新日:2023年10月4日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について *English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数

September 6, 2023 425

Monthly Disclosure

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: September 5, 2023 最終I更新日:2023年9月5日 コインチェック株式ョ会社 2024年3月期の月次開示情報(速報)について *English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載

August 31, 2023 425

【プレスリリース】*English follows

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 31, 2023 【プレスリリース】*English follows 2023年8月31日 コインチェック株式会社 役員の異動に関するお知らせ コインチェック株式会社(本社:東京都渋谷区、代表取締役:蓮尾 聡、以下、当社)は、以下のとおり役員の異動を行うこと

August 18, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BR

August 15, 2023 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: June 30, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q For the Transition Period

August 3, 2023 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 3, 2023 最終更新日:2023年8月3日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について * English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は

August 2, 2023 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 2, 2023 Matsumoto: Hello, everyone. Today, we will be explaining Monex Group, Inc.’s financial results for Q1 of FY2023. Seimei:

July 28, 2023 425

Financial Results for 1Q of Fiscal Year Ending March 31, 2024 July 28, 202 3 Monex Group TSE Prime : 8698 Ⅰ . Highlights Consolidated and Segment Adjusted EBITDA Adjusted EBITDA* on a consolidated basis continues to grow driven by growth in the Japan

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 28, 2023 Financial Results for 1Q of Fiscal Year Ending March 31, 2024 July 28, 202 3 Monex Group TSE Prime : 8698 Ⅰ . Highlights C

July 21, 2023 425

Coincheck and COLOPL Group’s Brilliantcrypto enter into an agreement for an IEO ~ From Japan to the world, targeting the emergence and expansion of GameFi and blockchain gaming markets ~

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 20, 2023 Announcement of Subsidiary’s Release TOKYO, July 20, 2023 – Coincheck, Inc., a subsidiary of Monex Group, Inc., issued the

July 5, 2023 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 5, 2023 最終更新日:2023年7月5日 コインチェック株式会社 2022年度の月次開示情報(速報)について *English is below 2022年度の月次開示情報(速報)を下記のとおりお知らせいたします。なお、本資料記載の数値は速報値であり、今後

July 5, 2023 425

Monthly Disclosure Today we reported the following preliminary monthly disclosure information for the fiscal year ending March 31, 2024. The preliminary numbers in the tables below may be updated in the future.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 5, 2023 July 5th, 2023 Coincheck, Inc. Monthly Disclosure Today we reported the following preliminary monthly disclosure informatio

June 29, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 29, 2023 THUNDER BRIDGE CAPI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 29, 2023 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporati

June 29, 2023 SC 13D/A

THCP / Thunder Bridge Capital Partners IV Inc - Class A / Simanson Gary A - AMENDMENT NO. 2 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L 107 (CUSIP Number) Gary A. Simanson 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Telephone: (

June 27, 2023 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 21, 2023 Thunder Bridge Ca

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 21, 2023 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpora

June 23, 2023 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: June 23, 2023 Further announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC

June 22, 2023 EX-3.1

Amendment to Amended and Restated Certificate of Incorporation. (2)

Exhibit 3.1 AMENDMENT TO THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF THUNDER BRIDGE CAPITAL PARTNERS IV, INC. Pursuant to Section 242 of the Delaware General Corporation Law Thunder Bridge Capital Partners IV, Inc. (the “Corporation”), a corporation organized and existing under the laws of the State of Delaware, does hereby certify as follows: 1. The name of the Corporation is Thunder

June 22, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 21, 2023 Thunder Bridge Capi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 21, 2023 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporati

June 8, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defini

June 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 8, 2023 THUNDER BRIDGE CAPIT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 8, 2023 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporatio

June 5, 2023 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: June 5, 2023 最終更新日:2023年6月5日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について *English is below 2024年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速報値で

May 31, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ___)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 31, 2023 EX-99.1

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Exhibit 99.1 Announcement Regarding the Progress of Thunder Bridge Capital Partners IV, Inc.’s Proposed Business Combination with Coincheck Group B.V. GREAT FALLS, Va., May 31, 2023 - Thunder Bridge Capital Partners Ⅳ, Inc. (“THCP” or “Thunder Bridge”), a special purpose acquisition company (“SPAC”) publicly listed on the Nasdaq Global Market (“Nasdaq”), is working closely with Coincheck Group B.V

May 31, 2023 425

Filed by Coincheck Group B.V.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 31, 2023 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transacti

May 31, 2023 EX-2.1

Amendment to Business Combination Agreement, dated as of March 31, 2023, by and among Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc.

Exhibit 2.1 Execution Version CONFIDENTIAL AMENDMENT TO BUSINESS COMBINATION AGREEMENT This AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of May 31, 2023, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakel

May 31, 2023 EX-99.1

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Exhibit 99.1 Announcement Regarding the Progress of Thunder Bridge Capital Partners IV, Inc.’s Proposed Business Combination with Coincheck Group B.V. GREAT FALLS, Va., May 31, 2023 - Thunder Bridge Capital Partners Ⅳ, Inc. (“THCP” or “Thunder Bridge”), a special purpose acquisition company (“SPAC”) publicly listed on the Nasdaq Global Market (“Nasdaq”), is working closely with Coincheck Group B.V

May 31, 2023 EX-2.1

Amendment to Business Combination Agreement, dated as of March 31, 2023, by and among Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc.

Exhibit 2.1 Execution Version CONFIDENTIAL AMENDMENT TO BUSINESS COMBINATION AGREEMENT This AMENDMENT TO BUSINESS COMBINATION AGREEMENT (this “Amendment”), is entered into as of May 31, 2023, by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (“Thunder Bridge”), Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakel

May 31, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

May 31, 2023 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2023 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporatio

May 31, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2023 THUNDER BRIDGE CAPIT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2023 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporatio

May 31, 2023 EX-99.2

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Exhibit 99.2 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, May 31, 2023 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Oki Matsumoto; the “Comp

May 31, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ___)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 31, 2023 EX-99.2

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Exhibit 99.2 Announcement regarding the progress of Coincheck Group B.V. to become publicly listed on Nasdaq through a De-SPAC transaction with Thunder Bridge Capital Partners IV, Inc. TOKYO, May 31, 2023 - Coincheck Group B.V. (“CCG” or “Coincheck Group”), a consolidated subsidiary of Monex Group, Inc. (headquarters: Tokyo, Japan; Representative Executive Officer and CEO: Oki Matsumoto; the “Comp

May 25, 2023 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

May 25, 2023 CORRESP

THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066

THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066 May 25, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Joseph Ambrogi Re: Thunder Bridge Capital Partners IV, Inc. Preliminary Proxy Statement on Schedule 14A Filed May 16, 2023 File No. 001-40555 Dear Mr. Ambrog

May 16, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

May 15, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER B

May 12, 2023 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 12, 2023 Matsumoto: I will now begin the presentation of Monex Group, Inc.’s, financial results for the fiscal year ended March 31,

May 8, 2023 425

2023 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 8, 2023 最終更新日:2023年5月8日 コインチェック株式会社 2024年3月期の月次開示情報(速報)について *English is below 2024 年3月期の月次開示情報(速報)を以下のとおり、お知らせいたします。なお、本資料記載の数値は速報値で

May 2, 2023 425

Financial Results for Fiscal Year Ending March 31, 2023 April 27, 202 3 Monex Group TSE Prime : 8698 Ⅰ . Highlights Financial Interest Impact and A dvertising Expenses Advertising expenses The US Segment curbed advertising expenses due to a strategy

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 27, 2023 Financial Results for Fiscal Year Ending March 31, 2023 April 27, 202 3 Monex Group TSE Prime : 8698 Ⅰ . Highlights Finan

April 5, 2023 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 5, 2023 最終更新日:2023年4月5日 コインチェック株式会社 2022年度の月次開示情報(速報)について * English is below 2022 年度の月次開示情報(速報)を下記のとおりお知らせいたします。なお、本資料記載の数値は速報値であり

March 31, 2023 EX-4.5

Description of Registered Securities.*

Exhibit 4.5 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of December 31, 2022, Thunder Bridge Capital Partners IV, Inc. (“we,” “our,” “us” or the “Company”) had the following three classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): (i) its un

March 31, 2023 425

Coincheck Announces Organizational and Directors Changes

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 31, 2023 March 31, 2023 Coincheck, Inc. Coincheck Announces Organizational and Directors Changes Coincheck, Inc. (hereinafter refe

March 31, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-40555 THUNDER BRIDGE

March 3, 2023 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 3, 2023 最終更新日:2023年3月3日 コインチェック株式会社 2022年度の月次開示情報(速報)について *English is below 2022年度の月次開示情報(速報)を下記のとおりお知らせいたします。なお、本資料記載の数値は速報値であり、今

February 15, 2023 425

Notice regarding the IEO of FiNANCiE Tokens (FNCT) ~ Coincheck IEO to begin accepting purchase applications on Feb 21st~

425 1 ea173709-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: February 15, 2023 Announcement of Subsidiary’s Release TOKYO, February 15, 2023 – Coincheck, In

February 15, 2023 SC 13G/A

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / CANTOR FITZGERALD SECURITIES - AMENDMENT NO. 1 TO SCHEDULE 13G Passive Investment

SC 13G/A 1 ea173502-13ga1cantorthund4.htm AMENDMENT NO. 1 TO SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 1 – Exit Filing)* Under the Securities Exchange Act of 1934 Thunder Bridge Capital Partners IV Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 88605L107 (CUSIP Number) De

February 15, 2023 EX-99.1

Joint Filing Agreement, dated as of February 14, 2023, by and among the Reporting Persons

EX-99.1 2 ea173502ex99-1thund4.htm JOINT FILING AGREEMENT, DATED AS OF FEBRUARY 14, 2023, BY AND AMONG THE REPORTING PERSONS EXHIBIT 99.1 JOINT FILING AGREEMENT Each of the undersigned hereby acknowledges and agrees, in compliance with the provisions of Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, that the Schedule 13G to which this Agreement is attached as a

February 14, 2023 SC 13G/A

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / Sculptor Capital LP - SC 13G/A Passive Investment

SC 13G/A 1 d457572dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L107 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Fil

February 9, 2023 425

2

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: February 9, 2023 First of all, if you look at page four, you will see the operating income of the three main segments by quarter. …Coinc

February 8, 2023 425

2022 年度の月次開示情報(速報)について

425 1 ea172968-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: February 3, 2023 最終更新日:2023年2月3日 コインチェック株式会社 2022 年度の月次開示情報(速報)について *English is below 2022 年度の月

January 31, 2023 425

Financial Results for 3Q of Fiscal Year Ending March 31, 2023 January 30, 202 3 Monex Group TSE Prime : 8698 Always a step ahead of the “Y” in “MONEY,” our name MONEX expresses our desire to embrace all people who are engaged at the forefront of our

425 1 ea172462-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: January 31, 2023 Financial Results for 3Q of Fiscal Year Ending March 31, 2023 January 30, 202

January 24, 2023 SC 13G/A

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / MILLENNIUM MANAGEMENT LLC Passive Investment

SC 13G/A 1 THCPSC13GA2023.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (AMENDMENT NO. 1) THUNDER BRIDGE CAPITAL PARTNERS IV INC. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 88605L107 (CUSIP Number) DECEMBER 31, 2022 (Date of event which requires filing of this

January 6, 2023 425

2022 年 4 月

425 1 ea171331-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: January 6, 2023 最終更新日:2023年1月6日 コインチェック株式会社 2022年度の月次開示情報(速報)について *English is below 2022 年度の月次開

December 21, 2022 425

Coincheck to conduct IEO (Initial Exchange Offering) for FiNANCiE Token this winter

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: December 21, 2022 Announcement of Subsidiary?s Release TOKYO, December 21, 2022 ? Coincheck, Inc., a subsidiary of Monex Group, Inc., is

December 5, 2022 425

2022 年度の月次開示情報(速報)について

425 1 ea169624-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: December 5, 2022 最終更新日:2022年12月5日 コインチェック株式会社 2022 年度の月次開示情報(速報)について * English is below 2022 年度

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUND

November 14, 2022 425

2

425 1 ea168581-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 14, 2022 Safeguarding Crypto-Related Customer Assets by Our Group Companies through St

November 9, 2022 425

1

425 1 ea168298-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 9, 2022 About Recent Reports Concerning Crypto Exchange FTX TOKYO, November 9, 2022 -

November 8, 2022 425

2

425 1 ea168210-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 8, 2022 Monex Group Conference Call Script, Coincheck, Inc. Portion Three-month period

November 4, 2022 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: November 4, 2022 ??????2022?11?4? ??????????? 2022????????????????? * English is below 2022 ????????????????????????????????????????????

October 28, 2022 425

Financial Results for 2 Q of Fiscal Year Ending March 31, 2023 October 28, 2022 Monex Group TSE Prime : 8698 Ⅰ . Highlights 1 Highlight Focus areas of each major subsidiary Crypto Asset Segment Planning NASDAQ listing with De - SPAC transaction Globa

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 28, 2022 Financial Results for 2 Q of Fiscal Year Ending March 31, 2023 October 28, 2022 Monex Group TSE Prime : 8698 Ⅰ . Highli

October 28, 2022 425

DATABOOK Financial Results for 2Q of Fiscal Year Ending March 31, 2023 October 28 , 2022 Monex Group TSE Prime: 8698 I. Market & Transaction Data © Monex Group, Inc. 1 Market and Transaction Data (3) U.S., Crypto Asset, and Asia - Pacific Segment FYE

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 28, 2022 DATABOOK Financial Results for 2Q of Fiscal Year Ending March 31, 2023 October 28 , 2022 Monex Group TSE Prime: 8698 I.

October 5, 2022 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: October 5, 2022 ??????2022?10?5? ??????????? 2022????????????????? *English is below 2022 ??????????????????????????????????????????????

September 6, 2022 425

2022 年 4 月

425 1 ea165370-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: September 5, 2022 最終更新日:2022年9月5日 コインチェック株式会社 2022年度の月次開示情報(速報)について *English is below 2022 年度の月

August 12, 2022 425

Filed by Coincheck Group B.V.

425 1 ea164279-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 12, 2022 Monex Group Conference Call Script, Coincheck, Inc. Portion Fiscal year ended M

August 3, 2022 425

Financial Results for 1Q of Fiscal Year Ending March 31, 2023 Aug 3, 2022 Monex Group DATABOOK TSE Prime: 8698 This is an English translation of Japanese presentation material prepared in connection with the disclosure of the financial results of Mon

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 3, 2022 Financial Results for 1Q of Fiscal Year Ending March 31, 2023 Aug 3, 2022 Monex Group DATABOOK TSE Prime: 8698 This is an

August 3, 2022 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 3, 2022 ??????2022?8?3? ??????????? 2022????????????????? *English is below 2022?????????????????????????????????????????????????

August 3, 2022 425

Financial Results for 1Q of Fiscal Year Ending March 31, 2023 August 3, 2022 Monex Group TSE Prime : 8698 1 Always a step ahead of the “Y” in “MONEY,” our name MONEX expresses our desire to embrace all people who are engaged at the forefront of our f

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: August 3, 2022 Financial Results for 1Q of Fiscal Year Ending March 31, 2023 August 3, 2022 Monex Group TSE Prime : 8698 1 Always a step

July 27, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BRIDGE CAPITAL P

July 25, 2022 SC 13G

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / MILLENNIUM MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 88605L107 (CUSIP Number) JULY 18, 2022 (Date of event which requires filing of this statement) Check the appropriate box to designate

July 5, 2022 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: July 5, 2022 ??????2022?7?5? ??????????? 2022????????????????? *English is below 2022???????????????????????????????????????????????????

June 3, 2022 425

2022 年 4 月

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: June 3, 2022 ??????2022?6?3? ??????????? 2022????????????????? *English is below 2022???????????????????????????????????????????????????

May 16, 2022 EX-10.4

Promissory Note, dated March 25, 2022, from the Company to TBCP IV, LLC. (5)

Exhibit 10.4 THIS PROMISSORY NOTE (?NOTE?) AND THE SECURITIES INTO WHICH THE NOTE MAY BE CONVERTED HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE ?SECURITIES ACT?) OR UNDER THE SECURITIES LAWS OF ANY STATE. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIE

May 16, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BRIDGE CAPITAL

May 9, 2022 425

Monthly Disclosure of Subsidiaries

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 9, 2022 ??????2022?5?9? ??????????? 2022????????????????? *English is below 2022????????????????????????????????????????????????????

May 9, 2022 425

Monthly Disclosure of Subsidiaries

425 1 ea159583-425coincheckgroup.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 9, 2022 最終更新日:2022年5月9日 コインチェック株式会社 2021年度の月次開示情報(速報)について *English is below 2021年度の月次開

May 2, 2022 425

2

425 1 ea159200-425coincheckgroup.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: May 2, 2022 Monex Group Conference Call Script, Coincheck, Inc. Portion Fiscal year ended

April 28, 2022 425

Filed by Coincheck Group B.V.

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 28, 2022 Financial Results for Fiscal Year Ending March 31, 2022 April 27, 2022 Monex Group TSE Prime : 8698 This is an English tr

April 28, 2022 425

DATABOOK Financial Results for Fiscal Year Ending March 31, 2022 April 27, 2022 Monex Group TSE Prime: 8698 This is an English translation of Japanese presentation material prepared in connection with the disclosure of the financial results of Monex

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 28, 2022 DATABOOK Financial Results for Fiscal Year Ending March 31, 2022 April 27, 2022 Monex Group TSE Prime: 8698 This is an En

April 5, 2022 425

Coincheck Group B.V. Announces Submittion of Confidential Draft Registration Statement on Form F-4 with respect to Proposed Business Combination and a De-SPAC with Thunder Bridge Capital Partners IV, Inc.

425 1 ea158021-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 5, 2022 Coincheck Group B.V. Announces Submittion of Confidential Draft Registration Stat

April 5, 2022 425

Monthly Disclosure of Subsidiaries

425 1 ea158024-425coincheck.htm FORM 425 Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 5, 2022 最終更新日:2022年4月5日 コインチェック株式会社 2021年度の月次開示情報(速報)について *English is below 2021年度の月次開示情報

April 5, 2022 425

2

Filed by Thunder Bridge Capital Partners IV, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: April 5, 2022 Thunder Bridge Capital Partners IV, Inc. Announces Confidential Submission of Draft Registration State

March 30, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-40555 THUNDER BRIDGE CA

March 22, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 22, 2022 THUNDER BRIDGE CAP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 22, 2022 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporat

March 22, 2022 EX-10.2

Company Support Agreement, dated as of March 22, 2022, by and among the Company, Monex Group, Inc., and Coincheck Group B.V. (4)

Exhibit 10.2 COMPANY SUPPORT AGREEMENT This Company Support Agreement, dated as of March 22, 2022 (this ?Agreement?), is entered into by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (?Thunder Bridge?), Monex Group, Inc., a Japanese joint stock company (kabushiki kaisha) (?Monex?, or the ?Equityholder?), and Coincheck Group B.V., a Dutch private limited liability compa

March 22, 2022 EX-99.1

Coincheck, Inc. – a subsidiary of Japan’s Monex Group – Enters Definitive Merger Agreement with Thunder Bridge Capital Partners IV, Inc.

Exhibit 99.1 Coincheck, Inc. – a subsidiary of Japan’s Monex Group – Enters Definitive Merger Agreement with Thunder Bridge Capital Partners IV, Inc. ● Coincheck is one of the largest multi-cryptocurrency marketplaces and digital asset exchanges in Japan, with approximately 1.5 million verified customers ● Combination with Thunder Bridge Capital Partners IV, Inc. (Nasdaq: THCP) enables Coincheck t

March 22, 2022 EX-10.4

Form of Registration Rights Agreement. (4)

EX-10.4 6 ea157219ex10-4thunder4.htm FORM OF REGISTRATION RIGHTS AGREEMENT Exhibit 10.4 FORM OF REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of 2022, is made and entered into by and among Coincheck Group B.V. (the “Company”), TBCP IV, LLC (“Thunder Bridge Sponsor”), Monex Group, Inc. (“Monex”), and the Persons set forth on Exhibit A hereto (collecti

March 22, 2022 EX-10.1

Sponsor Support Agreement dated as of March 22, 2022, by and among TBCP IV, LLC, Gary A. Simanson, the Company, Coincheck Group B.V., Coincheck, Inc., and Monex Group, Inc. (4)

Exhibit 10.1 SPONSOR SUPPORT AGREEMENT This Sponsor Support Agreement (this ?Agreement?) is dated as of March 22, 2022 by and among TBCP IV, LLC, a Delaware limited liability company (the ?Sponsor?), Gary A. Simanson, as managing member of Sponsor (?Simanson?), Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (?Thunder Bridge?), Coincheck Group B.V., a Dutch private limited liabili

March 22, 2022 425

Coincheck to Become a Subsidiary of a NASDAQ-listed Company through Merger with Thunder Bridge Capital Partners IV Positioned for further growth through global expansion, enabled by becoming a subsidiary of a new international holding company

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 22, 2022 Announcement of Subsidiary?s Release TOKYO, March 22, 2022 ? Coincheck, Inc., a subsidiary of Monex Group, Inc., issued t

March 22, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 22, 2022 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorporat

March 22, 2022 EX-10.2

Company Support Agreement, dated as of March 22, 2022, by and among Thunder Bridge Capital Partners IV, Inc., Monex Group, Inc., and Coincheck Group B.V.

Exhibit 10.2 COMPANY SUPPORT AGREEMENT This Company Support Agreement, dated as of March 22, 2022 (this ?Agreement?), is entered into by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (?Thunder Bridge?), Monex Group, Inc., a Japanese joint stock company (kabushiki kaisha) (?Monex?, or the ?Equityholder?), and Coincheck Group B.V., a Dutch private limited liability compa

March 22, 2022 EX-10.3

Form of Lock-Up Agreement, dated as of March 22, 2022, by Coincheck Group B.V., Coincheck, Inc., and the individual named therein.

Exhibit 10.3 Lock-Up AGREEMENT This Lock-Up Agreement, dated as of March 22, 2022 (this ?Agreement?), is entered into by and among Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) (?PubCo?), Coincheck, Inc., a Japanese joint stock company (kabushiki kaisha) (the ?Company?), and the individual set forth on Schedule 1 attached her

March 22, 2022 EX-2.1

Business Combination Agreement, dated as of March 22, 2022, by and among Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc.

Exhibit 2.1 BUSINESS COMBINATION AGREEMENT by and among THUNDER BRIDGE CAPITAL PARTNERS IV, INC., COINCHECK GROUP B.V., M1 CO G.K., COINCHECK MERGER SUB, INC., and COINCHECK, INC. dated as of March 22, 2022 TABLE OF CONTENTS Page ARTICLE I CERTAIN DEFINITIONS 4 Section 1.01 Definitions 4 Section 1.02 Construction 15 Section 1.03 Knowledge 15 Section 1.04 Equitable Adjustments 15 ARTICLE II BUSINES

March 22, 2022 EX-99.2

2022)_v11.pptx 1 Investor Presentation March 2022 2022)_v11.pptx 2 Disclaimer About this Presentation This presentation relates to a proposed business combination (the “Business Combination”) between Coincheck Group B.V. (“CCG” ), which will be a hol

Exhibit 99.2 2022)v11.pptx 1 Investor Presentation March 2022 2022)v11.pptx 2 Disclaimer About this Presentation This presentation relates to a proposed business combination (the “Business Combination”) between Coincheck Group B.V. (“CCG” ), which will be a holding company of Coincheck, Inc. (the “Company”) and Thunder Bridge Capital Partners Ⅳ , Inc. (“THCP”). The information contained herein doe

March 22, 2022 425

2022)_v11.pptx 1 Investor Presentation March 2022 2022)_v11.pptx 2 Disclaimer About this Presentation This presentation relates to a proposed business combination (the “Business Combination”) between Coincheck Group B.V. (“CCG” ), which will be a hol

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 22, 2022 2022)v11.pptx 1 Investor Presentation March 2022 2022)v11.pptx 2 Disclaimer About this Presentation This presentation rel

March 22, 2022 EX-10.4

Form of Registration Rights Agreement.

Exhibit 10.4 FORM OF REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?), dated as of 2022, is made and entered into by and among Coincheck Group B.V. (the ?Company?), TBCP IV, LLC (?Thunder Bridge Sponsor?), Monex Group, Inc. (?Monex?), and the Persons set forth on Exhibit A hereto (collectively with the Thunder Bridge Sponsor, Monex and any other person or entity

March 22, 2022 EX-99.2

2022)_v11.pptx 1 Investor Presentation March 2022 2022)_v11.pptx 2 Disclaimer About this Presentation This presentation relates to a proposed business combination (the “Business Combination”) between Coincheck Group B.V. (“CCG” ), which will be a hol

Exhibit 99.2 2022)v11.pptx 1 Investor Presentation March 2022 2022)v11.pptx 2 Disclaimer About this Presentation This presentation relates to a proposed business combination (the ?Business Combination?) between Coincheck Group B.V. (?CCG? ), which will be a holding company of Coincheck, Inc. (the ?Company?) and Thunder Bridge Capital Partners ? , Inc. (?THCP?). The information contained herein doe

March 22, 2022 425

1

Filed by Coincheck Group B.V. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thunder Bridge Capital Partners IV, Inc. (Commission File No.: 001-40555) Date: March 22, 2022 Coincheck Group B.V. to become public on the Nasdaq through a De-SPAC with Thunder Bridge Capital Partners IV, Inc. TOKYO

March 22, 2022 EX-99.1

Coincheck, Inc. – a subsidiary of Japan’s Monex Group – Enters Definitive Merger Agreement with Thunder Bridge Capital Partners IV, Inc.

Exhibit 99.1 Coincheck, Inc. – a subsidiary of Japan’s Monex Group – Enters Definitive Merger Agreement with Thunder Bridge Capital Partners IV, Inc. ● Coincheck is one of the largest multi-cryptocurrency marketplaces and digital asset exchanges in Japan, with approximately 1.5 million verified customers ● Combination with Thunder Bridge Capital Partners IV, Inc. (Nasdaq: THCP) enables Coincheck t

March 22, 2022 EX-10.1

Sponsor Support Agreement dated as of March 22, 2022, by and among TBCP IV, LLC, Gary A. Simanson, Thunder Bridge Capital Partners IV, Inc., Coincheck Group B.V., Coincheck, Inc., and Monex Group, Inc.

EX-10.1 3 ea157219ex10-1thunder4.htm SPONSOR SUPPORT AGREEMENT DATED AS OF MARCH 22, 2022, BY AND AMONG TBCP IV, LLC, GARY A. SIMANSON, THUNDER BRIDGE CAPITAL PARTNERS IV, INC., COINCHECK GROUP B.V., COINCHECK, INC., AND MONEX GROUP, INC. Exhibit 10.1 SPONSOR SUPPORT AGREEMENT This Sponsor Support Agreement (this “Agreement”) is dated as of March 22, 2022 by and among TBCP IV, LLC, a Delaware limi

March 22, 2022 EX-10.3

Form of Lock-Up Agreement, dated as of March 22, 2022, by Coincheck Group B.V., Coincheck, Inc., and the individual named therein. (4)

Exhibit 10.3 Lock-Up AGREEMENT This Lock-Up Agreement, dated as of March 22, 2022 (this ?Agreement?), is entered into by and among Coincheck Group B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) (?PubCo?), Coincheck, Inc., a Japanese joint stock company (kabushiki kaisha) (the ?Company?), and the individual set forth on Schedule 1 attached her

March 22, 2022 EX-2.1

Business Combination Agreement, dated as of March 22, 2022, by and among the Company, Coincheck Group B.V., M1 Co G.K., Coincheck Merger Sub, Inc., and Coincheck, Inc. (4) +

Exhibit 2.1 BUSINESS COMBINATION AGREEMENT by and among THUNDER BRIDGE CAPITAL PARTNERS IV, INC., COINCHECK GROUP B.V., M1 CO G.K., COINCHECK MERGER SUB, INC., and COINCHECK, INC. dated as of March 22, 2022 TABLE OF CONTENTS Page ARTICLE I CERTAIN DEFINITIONS 4 Section 1.01 Definitions 4 Section 1.02 Construction 15 Section 1.03 Knowledge 15 Section 1.04 Equitable Adjustments 15 ARTICLE II BUSINES

February 14, 2022 SC 13G/A

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / CITADEL ADVISORS LLC - THUNDER BRIDGE CAPITAL PARTNERS IV, INC. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2 (Amendment No. 1)* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (the ?Shares?) (Title of Class

January 28, 2022 SC 13G/A

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / Weiss Asset Management LP Passive Investment

CUSIP NO. 88605L107 SCHEDULE 13G/A PAGE 1 OF 10 PAGES =============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* THUNDER BRIDGE CAPITAL PARTNERS IV, INC. - (Name of Issuer) Class A Common Stock, par value $0.0001 per share - (Title

November 17, 2021 SC 13G

THCP / Thunder Bridge Capital Partners IV, Inc. Class A / CANTOR FITZGERALD SECURITIES - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. )* Under the Securities Exchange Act of 1934 Thunder Bridge Capital Partners IV Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 88605L107 (CUSIP Number) November 9, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropri

November 17, 2021 EX-99.1

JOINT FILING AGREEMENT

EXHIBIT 99.1 JOINT FILING AGREEMENT Each of the undersigned hereby acknowledges and agrees, in compliance with the provisions of Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, that the Schedule 13G to which this Agreement is attached as an Exhibit, and any amendments thereto, will be filed with the Securities and Exchange Commission jointly on behalf of the und

November 15, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BRIDGE CAPI

August 25, 2021 SC 13G/A

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / Weiss Asset Management LP Passive Investment

=============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

August 18, 2021 SC 13G

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / Sculptor Capital LP - SC 13G Passive Investment

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L206 (CUSIP Number) August 9, 2021 (Date of Event Which Requires Filing of this Statement) Check the app

August 18, 2021 EX-99.1

Thunder Bridge Capital Partners IV, Inc. Announces Separate Trading of its Class A Common Stock and Warrants, Commencing August 20, 2021

Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. Announces Separate Trading of its Class A Common Stock and Warrants, Commencing August 20, 2021 New York, NY, August 18, 2021 ? Thunder Bridge Capital Partners IV, Inc. (Nasdaq: THCPU) (the ?Company?) announced today that, commencing August 20, 2021, holders of the 23,652,784 units sold in the Company?s initial public offering may elect to sepa

August 18, 2021 8-K

Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 16, 2021 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction of incorpora

August 16, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40555 THUNDER BRIDGE CAPITAL P

August 11, 2021 SC 13D/A

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / Simanson Gary A - AMENDMENT NO. 1 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 88605L 107 (CUSIP Number) Gary A. Simanson 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Telephone: (

August 9, 2021 EX-99.1

Thunder Bridge Capital Partners IV, Inc. Announces Closing of Underwriters’ Option to Purchase Additional Units in Connection with Initial Public Offering

Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. Announces Closing of Underwriters? Option to Purchase Additional Units in Connection with Initial Public Offering New York, NY ? August 9, 2021 ? Thunder Bridge Capital Partners IV, Inc. (NASDAQ: THCPU) (the ?Company?) announced today that it closed the issuance of an additional 1,152,784 units pursuant to the exercise of the underwriters? opti

August 9, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K 1 ea145383-8kthunder4.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 9, 2021 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-18261

July 12, 2021 EX-99.1

JOINT FILING AGREEMENT

EXHIBIT 99.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Statement on Schedule 13G filed herewith (and any amendments thereto), relating to the Class A common stock of Thunder Bridge Capital Partners IV, Inc., a Delaware corporation, is being filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(c) under the Securities Exchange Act of 1934, as amended, o

July 12, 2021 SC 13G

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / CITADEL ADVISORS LLC - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2 (Amendment No. )* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 8

July 9, 2021 EX-99.1

INDEX TO BALANCE SHEET THUNDER BRIDGE CAPITAL PARTNERS IV INC.

Exhibit 99.1 INDEX TO BALANCE SHEET THUNDER BRIDGE CAPITAL PARTNERS IV INC. Page Report of Independent Registered Public Accounting Firm F-2 Balance Sheet: Balance Sheet F-3 Notes to Balance Sheet F-4 F-1 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Board of Directors and Shareholders Thunder Bridge Capital Partners IV, Inc. Opinion on the financial statement We have audited the accompa

July 9, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 9, 2021 (July 2, 2021) THUNDER BRIDGE CAPITAL PARTNERS IV INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction o

July 6, 2021 EX-99.4

Joint Filing Agreement, by and among the Reporting Persons.

EX-99.4 2 ea143726ex99-4thunder4.htm JOINT FILING AGREEMENT, BY AND AMONG THE REPORTING PERSONS Exhibit 99.4 JOINT FILING AGREEMENT AGREEMENT dated as of July 6, 2021, by and between TBCP IV, LLC and Gary A. Simanson (together, the “Parties”). Each Party hereto represents to the other Party that it is eligible to use Schedule 13D to report its beneficial ownership of Common Stock, $0.0001 par valu

July 6, 2021 SC 13D

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / Simanson Gary A - SCHEDULE 13D Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* Thunder Bridge Capital Partners IV, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 88605L 107 (CUSIP Number) Gary A. Simanson 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Telephone: (202) 431-0507 (

July 2, 2021 EX-3.1

Amended and Restated Certificate of Incorporation. (1)

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF THUNDER BRIDGE CAPITAL PARTNERS IV, INC. June 29, 2021 Thunder Bridge Capital Partners IV, Inc., a corporation organized and existing under the laws of the State of Delaware (the ?Corporation?), DOES HEREBY CERTIFY AS FOLLOWS: 1. The name of the Corporation is ?Thunder Bridge Capital Partners IV, Inc.? The original certificate of inc

July 2, 2021 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 2, 2021 (June 29, 2021) THUNDER BRIDGE CAPITAL PARTNERS IV, INC. (Exact name of registrant as specified in its charter) Delaware 001-40555 86-1826129 (State or other jurisdiction

July 2, 2021 EX-10.6

Placement Unit Purchase Agreement, dated June 29, 2021, by and between the Company and TBCP IV, LLC. (1)

Exhibit 10.6 UNIT SUBSCRIPTION AGREEMENT This UNIT SUBSCRIPTION AGREEMENT (this ?Agreement?) is made as of the 29th day of June 2021, by and between Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (the ?Company?), having its principal place of business at 9912 Georgetown Pike, Suite D203, Great Falls, Virginia 22066, and TBCP IV, LLC, a Delaware limited liability company (the ?Sub

July 2, 2021 EX-10.2

Administrative Services Agreement, dated June 29, 2021, by and between the Company and First Capital Group, LLC. (1)

EX-10.2 6 ea143591ex10-2thunder4.htm ADMINISTRATIVE SERVICES AGREEMENT, DATED JUNE 29, 2021, BY AND AMONG THE COMPANY AND FIRST CAPITAL GROUP, LLC Exhibit 10.2 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 June 29, 2021 First Capital Group, LLC 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Re: Administrative Services Agreement La

July 2, 2021 EX-10.1

Letter Agreement, dated June 29, 2021, by and among the Company, its officers, directors and TBCP IV, LLC (1)

Exhibit 10.1 June 29, 2021 Thunder Bridge Capital Partners IV, Inc. 9912 Georgetown Pike, Suite D203 Great Falls, VA 22066 Re: Initial Public Offering Ladies and Gentlemen: This letter (this ?Letter Agreement?) is being delivered to you in accordance with the Underwriting Agreement (the ?Underwriting Agreement?) entered into by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corpora

July 2, 2021 EX-1.1

Underwriting Agreement, dated June 29, 2021, by and between the Company and Morgan Stanley & Co. LLC. (1)

Exhibit 1.1 22,500,000 Units THUNDER BRIDGE CAPITAL PARTNERS IV INC. UNDERWRITING AGREEMENT June 29, 2021 Morgan Stanley & Co. LLC. 1585 Broadway New York, New York 10036 Ladies and Gentlemen: Thunder Bridge Capital Partners IV Inc., a Delaware corporations (the ?Company?), proposes, subject to the terms and conditions stated in this agreement (the ?Agreement?), to sell to you and, as applicable,

July 2, 2021 EX-4.1

Warrant Agreement, dated June 29, 2021, by and between Continental Stock Transfer & Trust Company, as warrant agent, and the Company. (1)

Exhibit 4.1 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. and CONTINENTAL STOCK TRANSFER & TRUST COMPANY WARRANT AGREEMENT Dated as of June 29, 2021 THIS WARRANT AGREEMENT (this ?Agreement?), dated as of June 29, 2021 is by and between Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (the ?Company?), and Continental Stock Transfer & Trust Company, a New York limited purpose trust compan

July 2, 2021 EX-99.1

Thunder Bridge Capital Partners IV, Inc. Announces Pricing of $225,000,000 Initial Public Offering

EX-99.1 11 ea143591ex99-1thunder4.htm PRESS RELEASE, DATED JUNE 29, 2021 Exhibit 99.1 Thunder Bridge Capital Partners IV, Inc. Announces Pricing of $225,000,000 Initial Public Offering New York, NY, June 28, 2021 (GLOBE NEWSWIRE) - Thunder Bridge Capital Partners IV, Inc. (the “Company”) announced today that it priced its initial public offering of 22,500,000 units at $10.00 per unit. The units wi

July 2, 2021 EX-10.5

Registration Rights Agreement, dated June 29, 2021, by and among the Company, TBCP IV, LLC and the holders party thereto. (1)

EX-10.5 9 ea143591ex10-5thunder4.htm REGISTRATION RIGHTS AGREEMENT, DATED JUNE 29, 2021, BY AND AMONG THE COMPANY, TBCP IV, LLC AND THE HOLDERS PARTY THERETO Exhibit 10.5 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of June 29, 2021, is made and entered into by and among Thunder Bridge Capital Partners IV, Inc., a Delaware corporation (the “Company”

July 2, 2021 EX-99.2

Thunder Bridge Capital Partners IV, Inc. Announces Closing of $225,000,000 Initial Public Offering

EX-99.2 12 ea143591ex99-2thunder4.htm PRESS RELEASE, DATED JULY 2, 2021. Exhibit 99.2 Thunder Bridge Capital Partners IV, Inc. Announces Closing of $225,000,000 Initial Public Offering New York, NY – July 2, 2021 – Thunder Bridge Capital Partners IV, Inc. (NASDAQ: THCPU) (the “Company”) announced today that it closed its initial public offering of 22,500,000 units. The offering was priced at $10.0

July 2, 2021 EX-10.4

Investment Management Trust Account Agreement, dated June 29, 2021, by and between Continental Stock Transfer & Trust Company, as trustee, and the Company. (1)

EX-10.4 8 ea143591ex10-4thunder4.htm INVESTMENT MANAGEMENT TRUST AGREEMENT, JUNE 29, 2021, BY AND BETWEEN THE COMPANY AND CONTINENTAL STOCK TRANSFER & TRUST COMPANY, AS TRUSTEE Exhibit 10.4 INVESTMENT MANAGEMENT TRUST AGREEMENT This Investment Management Trust Agreement (this “Agreement”) is made effective as of June 29, 2021, by and between Thunder Bridge Capital Partners IV, Inc., a Delaware cor

July 2, 2021 EX-10.3

Advisory Services Agreement, dated June 29, 2021, by and between the Company and Thunder Bridge Capital, LLC. (1)

Exhibit 10.3 THUNDER BRIDGE CAPITAL PARTNERS IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 June 29, 2021 Thunder Bridge Capital, LLC 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Re: Advisory Services Agreement Ladies and Gentlemen: This letter agreement by and between Thunder Bridge Capital Partners IV, Inc. (the ?Company?) and Thunder Bridge Capital, LLC (?TB

July 2, 2021 SC 13G

THCPU / Thunder Bridge Capital Partners IV, Inc. Unit / Weiss Asset Management LP Passive Investment

=============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 30, 2021 424B4

$225,000,000 Thunder Bridge Capital Partners IV, Inc. 22,500,000 Units

PROSPECTUS Filed Pursuant to Rule 424(b)(4) Registration No. 333-254359 $225,000,000 Thunder Bridge Capital Partners IV, Inc. 22,500,000 Units Thunder Bridge Capital Partners IV, Inc. is a newly organized blank check company formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more busine

June 28, 2021 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Thunder Bridge Capital Partners IV, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 86-1826129 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer

June 25, 2021 CORRESP

Thunder Bridge Capital Partners IV, Inc. 9912 Georgetown Pike Suite D203 Great Falls, Virginia

Thunder Bridge Capital Partners IV, Inc. 9912 Georgetown Pike Suite D203 Great Falls, Virginia June 25, 2021 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Attention: Jay Mumford Re: Thunder Bridge Capital Partners IV, Inc. Registration Statement on Form S-1 Filed March 16, 2021 File No. 3

June 25, 2021 CORRESP

[Signature Page Follows]

Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 June 25, 2021 VIA EMAIL & EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Electronics and Machinery 100 F Street, N.E. Washington, D.C. 20549 Attention: Geoff Kruczek Re: Thunder Bridge Capital Partners IV, Inc. (the ?Company?) Registration Statement on Form S-1 (Registration No. 333-254359) Dear Mr.

June 21, 2021 EX-10.9

Form of Advisory Agreement by and between the Registrant and Thunder Bridge Capital, LLC.*

Exhibit 10.9 THUNDER BRIDGE CAPITAL PARTNERS IV INC. 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 [●], 2021 Thunder Bridge Capital, LLC 9912 Georgetown Pike Suite D203 Great Falls, Virginia 22066 Re: Advisory Services Agreement Ladies and Gentlemen: This letter agreement by and between Thunder Bridge Capital Partners IV Inc. (the “Company”) and Thunder Bridge Capital, LLC (“TBC”), d

June 21, 2021 S-1/A

As filed with the U.S. Securities and Exchange Commission on June 21, 2021.

As filed with the U.S. Securities and Exchange Commission on June 21, 2021. Registration No. 333-254359 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 To FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Thunder Bridge Capital Partners IV, Inc. (Exact name of registrant as specified in its charter) Delaware 6770 86-1826129 (State or other jur

June 21, 2021 EX-99.6

Consent of Stewart J. Paperin*

Exhibit 99.6 Consent to be Named as a Director Nominee In connection with the filing by Thunder Bridge Capital Partners IV Inc. of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), I hereby consent, pursuant to Rule 438 of the Securities Act, to being named as a nominee to the board of directors o

June 21, 2021 EX-10.7

Form of Indemnity Agreement. (2)

Exhibit 10.7 FORM OF INDEMNITY AGREEMENT THIS INDEMNITY AGREEMENT (this ?Agreement?) is made as of [?], 2021, by and between Thunder Bridge Capital Partners IV Inc., a Delaware corporation (the ?Company?), and [] (?Indemnitee?). RECITALS WHEREAS, highly competent persons have become more reluctant to serve publicly-held corporations as directors, officers or in other capacities unless they are pro

June 21, 2021 EX-10.3

Form of Investment Management Trust Agreement between Continental Stock Transfer & Trust Company, LLC and the Registrant*

Exhibit 10.3 INVESTMENT MANAGEMENT TRUST AGREEMENT This Investment Management Trust Agreement (this ?Agreement?) is made effective as of [?], 2021, by and between Thunder Bridge Capital Partners IV Inc., a Delaware corporation (the ?Company?), and Continental Stock Transfer & Trust Company, a New York corporation (the ?Trustee?). WHEREAS, the Company?s registration statements on Form S-1, File No.

June 21, 2021 EX-14

Code of Ethics. (2)

Exhibit 14 FORM OF CODE OF ETHICS OF THUNDER BRIDGE CAPITAL PARTNERS IV INC. 1. Introduction The Board of Directors (the ?Board?) of Thunder Bridge Capital Partners IV Inc. (the ?Company?) has adopted this code of ethics (this ?Code?), as amended from time to time by the Board and which is applicable to all of the Company?s directors, officers and employees (to the extent that employees are hired

June 21, 2021 EX-3.2

Form of Amended and Restated Certificate of Incorporation*

EX-3.2 3 fs12021a1ex3-2thunder4.htm FORM OF AMENDED AND RESTATED CERTIFICATE OF INCORPORATION Exhibit 3.2 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF THUNDER BRIDGE CAPITAL PARTNERS IV, INC. June 16, 2021 Thunder Bridge Capital Partners IV Inc., a corporation organized and existing under the laws of the State of Delaware (the “Corporation”), DOES HEREBY CERTIFY AS FOLLOWS: 1. The name of

June 21, 2021 EX-4.3

Specimen Warrant Certificate. (2)

EX-4.3 6 fs12021a1ex4-3thunder4.htm SPECIMEN WARRANT CERTIFICATE Exhibit 4.3 Form of Warrant Certificate [FACE] Number Warrants THIS WARRANT SHALL BE NULL AND VOID IF NOT EXERCISED PRIOR TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR IN THE WARRANT AGREEMENT DESCRIBED BELOW Thunder Bridge Capital Partners IV Inc. Incorporated Under the Laws of the State of Delaware CUSIP 88605L 115 Warrant

June 21, 2021 EX-99.4

Consent of Mary Anne Gillespie.*

EX-99.4 21 fs12021a1ex99-4thunder4.htm CONSENT OF MARY ANNE GILLESPIE. Exhibit 99.4 Consent to be Named as a Director Nominee In connection with the filing by Thunder Bridge Capital Partners IV Inc. of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), I hereby consent, pursuant to Rule 438 of the

June 21, 2021 EX-99.1

Form of Audit Committee Charter*

Exhibit 99.1 CHARTER OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS OF THUNDER BRIDGE CAPITAL PARTNERS IV INC. I. PURPOSE OF THE COMMITTEE The purpose of the Audit Committee (the ?Committee?) of the Board of Directors (the ?Board?) of Thunder Bridge Capital Partners IV Inc. (the ?Company?) is to oversee the accounting and financial reporting processes of the Company and its subsidiaries and the

June 21, 2021 CORRESP

THUNDER BRIDGE ACQUISITION IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066

THUNDER BRIDGE ACQUISITION IV, INC. 9912 Georgetown Pike Suite D203 Great Falls, VA 22066 June 21, 2021 VIA EDGAR U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attention: Jay Mumford Re: Thunder Bridge Capital Partners IV, Inc. Registration Statement on Form S-1 Filed March 16, 2021 File No. 333-254359 Dear Mr. Mumford: Thunder Bridge Capital Partners IV, Inc.,

June 21, 2021 EX-99.7

Consent of Allerd D. Stikker.*

Exhibit 99.7 Consent to be Named as a Director Nominee In connection with the filing by Thunder Bridge Capital Partners IV Inc. of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), I hereby consent, pursuant to Rule 438 of the Securities Act, to being named as a nominee to the board of directors o

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