Introduction

This page provides a comprehensive analysis of the known insider trading history of Michael John Cramer. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

See Highest Ranking Insiders
Companies with Reported Insider Positions

The SEC filings indicate Michael John Cramer has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
Director 12,762
US:TWNK / Hostess Brands Inc - Class A See Remarks 58,182
US:SOND / Sonder Holdings Inc. Director 0
US:LAZR / Luminar Technologies, Inc. Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Michael John Cramer. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Trading History

This table shows the complete list of insider trades made by Michael John Cramer as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change		 Share
Price		 Tran
Value		 Remaining
Value
2025-08-18 2025-08-14 4 PRMB Primo Brands Corp
Class A Common Stock 		P - Purchase 4,000 12,762 45.65 24.46 97,840 312,159
2025-05-02 2025-05-01 4 PRMB Primo Brands Corp
Class A Common Stock 		A - Award 5,317 8,762 154.34
2024-11-13 2024-11-08 4 PRMB Primo Brands Corp
Class A Common Stock 		A - Award 3,445 3,445
2023-01-26 2023-01-24 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,333 58,182 -2.24 21.81 -29,073 1,268,949
2023-01-19 2023-01-19 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,971 56,132 -3.39 22.93 -45,195 1,287,107
2023-01-19 2023-01-19 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -6,859 53,691 -11.33 22.99 -157,688 1,234,356
2023-01-19 2023-01-17 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		A - Award 17,142 60,550 39.49
2022-05-13 2022-05-11 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		S - Sale -25,000 43,408 -36.55 22.15 -553,830 961,626
2022-05-13 2022-05-11 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		G - Gift -5,000 68,408 -6.81
2022-01-26 2022-01-26 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -844 73,408 -1.14 19.41 -16,382 1,424,849
2022-01-25 2022-01-24 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,736 72,109 -2.35 20.28 -35,206 1,462,371
2022-01-25 2022-01-21 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 3,722 3,722
2022-01-20 2022-01-18 4 SOND Sonder Holdings, Inc.
Class F Common Stock, par value $0.0001 per share 		M - Exercise -25,000 0 -100.00
2022-01-20 2022-01-18 4 SOND Sonder Holdings, Inc.
Class A Common Stock, par value $0.0001 per share 		M - Exercise 25,000 25,000
2022-01-18 2022-01-18 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,219 69,435 -1.73 20.22 -24,648 1,403,976
2022-01-18 2022-01-18 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -8,771 67,924 -11.44 19.83 -173,929 1,346,933
2022-01-18 2022-01-13 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		A - Award 21,838 76,695 39.81
2021-01-28 2021-01-26 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -957 54,857 -1.71 13.99 -13,388 767,449
2021-01-20 2021-01-15 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,219 53,671 -2.22 14.45 -17,615 775,546
2021-01-20 2021-01-15 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 1,805 1,805
2021-01-20 2021-01-15 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 10,526 10,526
2020-12-04 2020-12-02 4 LAZR Luminar Technologies, Inc./DE
Class F Common Stock, par value $0.0001 per share 		M - Exercise -25,000 0 -100.00
2020-12-04 2020-12-02 4 LAZR Luminar Technologies, Inc./DE
Class A Common Stock, par value $0.0001 per share 		M - Exercise 25,000 25,000
2020-01-23 2020-01-21 4 TWNK Hostess Brands, Inc.
Stock Options 		A - Award 15,679 15,679
2020-01-23 2020-01-21 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 6,429 6,429
2020-01-17 2020-01-15 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -1,219 52,160 -2.28 14.09 -17,176 734,934
2020-01-08 2020-01-06 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -2,843 50,650 -5.31 14.54 -41,337 736,451
2019-11-12 2019-11-07 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -6,559 47,126 -12.22 12.84 -84,218 605,098
2019-01-15 2019-01-11 4 TWNK Hostess Brands, Inc.
Stock Options 		A - Award 24,300 24,300
2019-01-15 2019-01-11 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 8,189 8,189
2018-11-09 2018-11-07 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -4,059 37,018 -9.88 10.88 -44,162 402,756
2018-08-14 2018-08-10 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		P - Purchase 10,000 24,410 69.40 11.95 119,500 291,700
2018-03-07 2018-03-07 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 6,367 6,367
2018-03-07 2018-03-06 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		F - Taxes -4,256 14,410 -22.80 14.35 -61,074 206,784
2017-08-15 2017-08-11 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		P - Purchase 3,000 3,000 13.98 41,930 41,930
2017-08-15 2017-08-11 4 TWNK Hostess Brands, Inc.
Class A Common Stock, par value $0.0001 per share 		P - Purchase 2,000 52,000 4.00 13.99 27,972 727,267
2017-03-27 2017-03-23 4 TWNK Hostess Brands, Inc.
Stock Options 		A - Award 48,121 48,121
2017-03-27 2017-03-23 4 TWNK Hostess Brands, Inc.
Restricted Stock Units 		A - Award 50,000 50,000
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)