SEC Insider Transactions from Hall Brett Matthew.

Last updated: 2026-03-14 11:47 UTC | Total transactions: 9

Brett Matthew Hall, Chief Scientific Officer of Immuneering Corp ($IMRX), made three open market purchases of company shares totaling $45,118 in the past year, with the most recent on January 15, 2026. These buys rank 3,147th among nearly 5,000 insiders, below the average purchase amount of 1.5 million dollars and 3.3 transactions. Hall reported no open market sales in the last 365 days.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Feb. 3, 2026 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 344000 $0.00 344,000.0000 64,569,967 9999.99% 0.53%
Jan. 15, 2026 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 2298 $4.57 376,496.0000 64,569,967 0.61% 0.00%
Sept. 15, 2025 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Class A Common Stock 14880 $1.43 374,198.0000 35,887,252 4.14% 0.04%
June 20, 2025 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 7415 $2.70 353,311.0000 35,887,252 2.14% 0.02%
June 23, 2025 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 6007 $2.43 359,318.0000 35,887,252 1.70% 0.02%
Feb. 5, 2025 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 240000 $0.00 240,000.0000 0 9999.99% 0.00%
March 20, 2024 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 7000 $2.86 345,896.0000 0 2.07% 0.00%
March 15, 2024 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Class A Common Stock 6211 $1.62 338,896.0000 0 1.87% 0.00%
Feb. 8, 2024 Immuneering Corp $IMRX Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 130900 $0.00 130,900.0000 0 9999.99% 0.00%