GHRS - GH Research PLC Stock - Stock Price, Institutional Ownership, Shareholders (NasdaqGM)

GH Research PLC
US ˙ NasdaqGM ˙ IE000GID8VI0

Basic Stats
Institutional Owners 52 total, 52 long only, 0 short only, 0 long/short - change of 0.00% MRQ
Average Portfolio Allocation 0.8289 % - change of 4.12% MRQ
Shares Outstanding shares (source: Capital IQ)
Institutional Shares (Long) 43,756,657 - 70.54% (ex 13D/G) - change of 0.90MM shares 2.10% MRQ
Institutional Value (Long) $ 533,372 USD ($1000)
Institutional Ownership and Shareholders

GH Research PLC (US:GHRS) has 52 institutional owners and shareholders that have filed 13D/G or 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 43,756,657 shares. Largest shareholders include Bvf Inc/il, Ra Capital Management, L.p., Lynx1 Capital Management LP, Rtw Investments, Lp, Fmr Llc, Cormorant Asset Management, LP, Deep Track Capital, LP, Toronto Dominion Bank, FDGRX - Fidelity Growth Company Fund, and Jefferies Financial Group Inc. .

GH Research PLC (NasdaqGM:GHRS) institutional ownership structure shows current positions in the company by institutions and funds, as well as latest changes in position size. Major shareholders can include individual investors, mutual funds, hedge funds, or institutions. The Schedule 13D indicates that the investor holds (or held) more than 5% of the company and intends (or intended) to actively pursue a change in business strategy. Schedule 13G indicates a passive investment of over 5%.

The share price as of September 5, 2025 is 14.09 / share. Previously, on September 6, 2024, the share price was 8.23 / share. This represents an increase of 71.20% over that period.

GHRS / GH Research PLC Institutional Ownership
Fund Sentiment Score

The Fund Sentiment Score (fka Ownership Accumulation Score) finds the stocks that are being most bought by funds. It is the result of a sophisticated, multi-factor quantitative model that identifies companies with the highest levels of institutional accumulation. The scoring model uses a combination of the total increase in disclosed owners, the changes in portfolio allocations in those owners and other metrics. The number ranges from 0 to 100, with higher numbers indicating a higher level of accumulation to its peers, and 50 being the average.

Update Frequency: Daily

See Ownership Explorer, which provides a list of highest-ranking companies.

Institutional Put/Call Ratio

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

GHRS / GH Research PLC Historical Put/Call Ratio
13D/G Filings

We present 13D/G filings separately from the 13F filings because of the different treatement by the SEC. 13D/G filings can be filed by groups of investors (with one leading), whereas 13F filings cannot. This results in situations where an investor may file a 13D/G reporting one value for the total shares (representing all the shares owned by the investor group), but then file a 13F reporting a different value for the total shares (representing strictly their own ownership). This means that share ownership of 13D/G filings and 13F filings are oftentimes not directly comparable, so we present them separately.

Note: As of May 16, 2021, we no longer show owners that have not filed a 13D/G within the last year. Previously, we were showing the full history of 13D/G filings. In general, entities that are required to file 13D/G filings must file at least annually before submitting a closing filing. However, funds sometimes exit positions without submitting a closing filing (ie, they wind down), so displaying the full history sometimes resulted in confusion about the current ownership. To prevent confusion, we now only show ’current’ owners - that is - owners that have filed within the last year.

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File Date Form Investor Prev
Shares
Latest
Shares
Δ Shares
(Percent)
Ownership
(Percent)
Δ Ownership
(Percent)
2025-08-14 13G/A Terwey Theis H 6,188,070 4,692,903 -24.16 7.60 -36.13
2025-08-14 13G/A RA CAPITAL MANAGEMENT, L.P. 6,944,648 7,676,697 10.54 12.40 10.71
2025-08-06 13G/A FMR LLC 4,249,580 5,092,145 19.83 8.20 18.84
2025-05-15 13G/A RTW INVESTMENTS, LP 3,327,129 5,499,769 65.30 8.90 39.06
2025-05-15 13G/A BIOTECHNOLOGY VALUE FUND L P 10,400,158 8,827,712 -15.12 14.20 -28.96
2025-02-10 13G/A Lynx1 Capital Management LP 4,195,894 4,858,994 15.80 9.30 14.81
13F and NPORT Filings

Detail on 13F filings are free. Detail on NP filings require a premium membership. Green rows indicate new positions. Red rows indicate closed positions. Click the link icon to see the full transaction history.

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File Date Source Investor Type Avg Price
(Est)
Shares Δ Shares
(%)
Reported
Value
($1000)
Δ Value
(%)
Port Alloc
(%)
2025-08-26 NP NORTHERN FUNDS - NORTHERN SMALL CAP CORE FUND Class K 6,985 -5.53 85 4.94
2025-08-14 13F Troluce Capital Advisors LLC 85,791 -44.86 1,046 -39.10
2025-07-24 NP FNCMX - Fidelity Nasdaq Composite Index Fund This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 34,492 0.00 415 18.62
2025-08-14 13F Fmr Llc 5,092,145 19.83 62,073 32.43
2025-08-14 13F HighVista Strategies LLC 52,247 637
2025-08-14 13F Ra Capital Management, L.p. 7,676,697 10.54 93,579 22.17
2025-08-12 13F Jefferies Financial Group Inc. 709,312 -5.43 8,647 4.52
2025-07-24 NP FBIOX - Biotechnology Portfolio This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 405,900 -21.44 4,883 -6.73
2025-05-15 13F Diadema Partners Lp 0 -100.00 0
2025-08-14 13F Cormorant Asset Management, LP 2,009,482 0.00 24,496 10.52
2025-08-14 13F StemPoint Capital LP 100,826 1,229
2025-08-14 13F Toronto Dominion Bank 1,967,293 0.00 23,981 10.52
2025-05-15 13F Barclays Plc 0 -100.00 0
2025-08-14 13F Millennium Management Llc 203,645 2,482
2025-07-24 NP FCGSX - Fidelity Series Growth Company Fund This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 315,000 58.85 3,789 88.70
2025-08-14 13F Group One Trading, L.p. 80 -53.22 1 -100.00
2025-08-08 13F Geode Capital Management, Llc 34,633 -48.47 422 -43.05
2025-08-14 13F Royal Bank Of Canada 1,862 69.27 23 91.67
2025-07-24 NP FDGRX - Fidelity Growth Company Fund This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 1,319,681 32.21 15,876 57.01
2025-08-28 NP GWX - SPDR(R) S&P(R) International Small Cap ETF This fund is a listed as child fund of State Street Corp and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 9,024 -1.57 110 8.91
2025-05-14 13F Susquehanna International Group, Llp Call 0 -100.00 0
2025-08-14 13F Bank Of America Corp /de/ 223 45.75 3 100.00
2025-08-15 13F Morgan Stanley 281,002 1.35 3,425 12.00
2025-09-04 13F/A Advisor Group Holdings, Inc. 6,175 63.58 75 82.93
2025-08-14 13F 5AM Venture Management, LLC 572,665 0.00 6,981 10.51
2025-08-14 13F Alyeska Investment Group, L.P. 254,975 -43.96 3,108 -38.06
2025-05-14 13F Renaissance Technologies Llc 0 -100.00 0 -100.00
2025-07-25 NP EIRL - iShares MSCI Ireland ETF This fund is a listed as child fund of BlackRock Inc. and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 24,771 -1.97 298 16.47
2025-08-04 13F AdvisorShares Investments LLC 38,256 15.03 466 30.53
2025-08-12 13F Proequities, Inc. 0 0
2025-08-12 13F Jpmorgan Chase & Co 6,500 79
2025-08-26 NP EQ ADVISORS TRUST - EQ/Morgan Stanley Small Cap Growth Portfolio Class IB 48,821 0.00 595 10.59
2025-08-14 13F Peak6 Llc Put 0 -100.00 0
2025-08-14 13F Citadel Advisors Llc Put 0 -100.00 0
2025-08-13 13F Virtus Investment Advisers, Inc. 7,329 89
2025-08-14 13F Citadel Advisors Llc 0 -100.00 0
2025-08-14 13F UBS Group AG 458,582 2.38 5,590 13.16
2025-08-14 13F Deep Track Capital, LP 2,000,000 0.00 24,380 10.52
2025-08-22 NP MSSGX - Inception Portfolio CLASS I 74,570 0.00 909 10.58
2025-07-24 NP FGKFX - Fidelity Growth Company K6 Fund This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 480,357 21.20 5,779 43.95
2025-08-14 13F Wells Fargo & Company/mn 1,250 0.00 15 15.38
2025-08-14 13F Deerfield Management Company, L.p. (series C) 0 -100.00 0
2025-08-11 13F HighTower Advisors, LLC 22,300 272
2025-08-12 13F Global Retirement Partners, LLC 110 -50.00 1 0.00
2025-05-15 13F Woodline Partners LP 0 -100.00 0 -100.00
2025-08-14 13F Verition Fund Management LLC 657,381 -1.97 8,013 8.34
2025-07-24 NP ONEQ - Fidelity Nasdaq Composite Index Tracking Stock This fund is a listed as child fund of Fmr Llc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value 33,107 0.03 398 18.81
2025-05-15 13F Laurion Capital Management LP 0 -100.00 0
2025-08-13 13F Northern Trust Corp 38,977 -0.90 475 9.70
2025-08-14 13F Citadel Advisors Llc Call 0 -100.00 0
2025-07-30 13F Loring Wolcott & Coolidge Fiduciary Advisors Llp/ma 2,000 0.00 24 26.32
2025-07-15 13F Palumbo Wealth Management LLC 21,651 68.24 264 86.52
2025-08-14 13F Lynx1 Capital Management LP 6,746,951 4.70 82,245 15.71
2025-08-13 13F Walleye Capital LLC 0 -100.00 0
2025-08-14 13F Peak6 Llc 20,000 -68.85 244 -65.68
2025-08-14 13F Boothbay Fund Management, Llc 13,833 -53.76 169 -48.94
2025-08-12 13F BlackRock, Inc. 64,745 47.24 789 62.68
2025-08-05 13F Simplex Trading, Llc 25 47.06 0
2025-08-08 13F Tortoise Investment Management, LLC 0 -100.00 0 -100.00
2025-08-14 13F Bvf Inc/il 8,827,712 0.00 107,610 10.52
2025-08-12 13F XTX Topco Ltd 0 -100.00 0
2025-08-14 13F Bnp Paribas Arbitrage, Sa 17,010 165.37 207 195.71
2025-05-15 13F Two Sigma Investments, Lp 0 -100.00 0
2025-08-25 NP PSIL - AdvisorShares Psychedelics ETF 38,256 15.03 466 27.32
2025-04-14 13F Farther Finance Advisors, LLC 0 -100.00 0
2025-08-14 13F Rtw Investments, Lp 5,540,457 0.74 67,538 11.33
2025-08-13 13F Quadrature Capital Ltd 20,108 -36.42 246 -29.39
Other Listings
DE:1KA €11.60
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