Immuneering Corp ($IMRX) Insider Transactions

Last updated: 2026-03-17 21:01 UTC | Total transactions: 129

In the last 12 months, insiders at Immuneering Corp ($IMRX) filed 129 transactions with the SEC: 35 open-market purchases totaling $1,198,998 and 13 sales totaling $3,909,184. Net insider sentiment: net selling.

Immuneering Corp operates in the Pharmaceutical preparations industry (Life sciences sector).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 13, 2026 Neufeld Leah R CHIEF PEOPLE OFFICER A Class A Common Stock 3628 $4.29 29,598.0000 64,569,967 13.97% 0.01%
Feb. 3, 2026 Zeskind Benjamin J. PRESIDENT AND CEO A Stock Option 688000 $0.00 688,000.0000 64,569,967 9999.99% 1.07%
Feb. 3, 2026 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 140000 $0.00 140,000.0000 64,569,967 9999.99% 0.22%
Feb. 3, 2026 Morales Mallory SVP Finance, CAO A Stock Option 140000 $0.00 140,000.0000 64,569,967 9999.99% 0.22%
Feb. 3, 2026 Matushansky Igor Chief Medical Officer A Stock Option 140000 $0.00 140,000.0000 64,569,967 9999.99% 0.22%
Feb. 3, 2026 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 344000 $0.00 344,000.0000 64,569,967 9999.99% 0.53%
Feb. 3, 2026 Brakewood Harold Eugene Chief Business Officer A Stock Option 140000 $0.00 140,000.0000 64,569,967 9999.99% 0.22%
Feb. 3, 2026 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 176000 $0.00 176,000.0000 64,569,967 9999.99% 0.27%
Jan. 16, 2026 Brakewood Harold Eugene Chief Business Officer P Class A Common Stock 5250 $4.76 11,050.0000 64,569,967 90.52% 0.01%
Jan. 15, 2026 Schall Thomas J. Director P Class A Common Stock 21645 $4.67 74,530.0000 64,569,967 40.93% 0.03%
Jan. 15, 2026 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 2298 $4.57 376,496.0000 64,569,967 0.61% 0.00%
Jan. 13, 2026 Neufeld Leah R CHIEF PEOPLE OFFICER P Class A Common Stock 2626 $4.15 25,970.0000 64,569,967 11.25% 0.00%
Jan. 12, 2026 Feinberg Peter Director P Class A Common Stock 20000 $4.35 1,161,064.0000 64,569,967 1.75% 0.03%
Jan. 1, 2026 Feinberg Peter Director A Stock Option 7888 $0.00 7,888.0000 64,569,967 9999.99% 0.01%
Jan. 1, 2026 KEATING LAURIE Director A Stock Option 7888 $0.00 7,888.0000 64,569,967 9999.99% 0.01%
Oct. 3, 2025 Feinberg Peter Director P Class A Common Stock 7500 $6.67 1,141,064.0000 35,887,252 0.66% 0.02%
Oct. 1, 2025 Morales Mallory Chief Accounting Officer P Class A Common Stock 300 $6.39 27,533.0000 35,887,252 1.10% 0.00%
Oct. 1, 2025 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY P Class A Common Stock 1020 $6.83 4,870.0000 35,887,252 26.49% 0.00%
Oct. 1, 2025 Neufeld Leah R CHIEF PEOPLE OFFICER P Class A Common Stock 800 $6.38 23,344.0000 35,887,252 3.55% 0.00%
Sept. 30, 2025 Feinberg Peter Director P Class A Common Stock 7500 $7.03 1,133,564.0000 35,887,252 0.67% 0.02%
Sept. 29, 2025 Feinberg Peter Director P Class A Common Stock 5000 $7.18 1,126,064.0000 35,887,252 0.45% 0.01%
Sept. 15, 2025 Neufeld Leah R CHIEF PEOPLE OFFICER A Class A Common Stock 11815 $1.43 22,544.0000 35,887,252 110.12% 0.03%
Sept. 15, 2025 Morales Mallory Chief Accounting Officer A Class A Common Stock 14497 $1.43 27,233.0000 35,887,252 113.83% 0.04%
Sept. 15, 2025 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Class A Common Stock 14880 $1.43 374,198.0000 35,887,252 4.14% 0.04%
July 2, 2025 HAUSMAN DIANA Director P Class A Common Stock 2500 $3.60 5,500.0000 35,887,252 83.33% 0.01%
July 2, 2025 Neufeld Leah R CHIEF PEOPLE OFFICER P Class A Common Stock 700 $3.57 10,729.0000 35,887,252 6.98% 0.00%
July 2, 2025 HAUSMAN DIANA Director P Class A Common Stock 3000 $3.62 5,500.0000 35,887,252 120.00% 0.01%
July 1, 2025 Zeskind Benjamin J. PRESIDENT AND CEO P Class A Common Stock 2985 $3.38 3,200,764.0000 35,887,252 0.09% 0.01%
July 2, 2025 Zeskind Benjamin J. PRESIDENT AND CEO P Class A Common Stock 7015 $3.53 3,207,779.0000 35,887,252 0.22% 0.02%
June 27, 2025 Schall Thomas J. Director P Class A Common Stock 9500 $3.66 52,885.0000 35,887,252 21.90% 0.03%
June 20, 2025 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 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 6007 $2.43 359,318.0000 35,887,252 1.70% 0.02%
June 20, 2025 Brakewood Harold Eugene Chief Business Officer P Class A Common Stock 1900 $2.53 5,800.0000 35,887,252 48.72% 0.01%
June 18, 2025 Feinberg Peter Director P Class A Common Stock 25000 $2.53 1,121,064.0000 35,887,252 2.28% 0.07%
June 18, 2025 Zeskind Benjamin J. PRESIDENT AND CEO P Class A Common Stock 21000 $2.39 3,197,779.0000 35,887,252 0.66% 0.06%
June 17, 2025 Schall Thomas J. Director P Class A Common Stock 40485 $2.21 43,385.0000 35,887,252 1396.03% 0.11%
June 13, 2025 BERMAN ANN E Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
June 13, 2025 CARPENTER ROBERT J Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
June 13, 2025 Feinberg Peter Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
June 13, 2025 KEATING LAURIE Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
June 13, 2025 Schall Thomas J. Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
June 13, 2025 HAUSMAN DIANA Director A Stock Option 33350 $0.00 33,350.0000 35,887,252 9999.99% 0.09%
March 21, 2025 Matushansky Igor Chief Medical Officer A Stock Option 118000 $0.00 118,000.0000 35,887,252 9999.99% 0.33%
Feb. 5, 2025 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 110000 $0.00 110,000.0000 0 9999.99% 0.00%
Feb. 5, 2025 Zeskind Benjamin J. PRESIDENT AND CEO A Stock Option 480000 $0.00 480,000.0000 0 9999.99% 0.00%
Feb. 5, 2025 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 240000 $0.00 240,000.0000 0 9999.99% 0.00%
Feb. 5, 2025 Brakewood Harold Eugene Chief Business Officer A Stock Option 100000 $0.00 100,000.0000 0 9999.99% 0.00%
Feb. 5, 2025 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 110000 $0.00 110,000.0000 0 9999.99% 0.00%
Feb. 5, 2025 Morales Mallory Chief Accounting Officer A Stock Option 110000 $0.00 110,000.0000 0 9999.99% 0.00%
Jan. 1, 2025 BERMAN ANN E Director A Stock Option 23485 $0.00 23,485.0000 0 9999.99% 0.00%
Jan. 1, 2025 BERMAN ANN E Director A Stock Option 17614 $0.00 17,614.0000 0 9999.99% 0.00%
Jan. 1, 2025 Feinberg Peter Director A Stock Option 23485 $0.00 23,485.0000 0 9999.99% 0.00%
Jan. 1, 2025 KEATING LAURIE Director A Stock Option 23485 $0.00 23,485.0000 0 9999.99% 0.00%
Sept. 15, 2024 Morales Mallory Chief Accounting Officer A Class A Common Stock 4458 $1.62 12,736.0000 0 53.85% 0.00%
June 12, 2024 KEATING LAURIE Director A Stock Option 33350 $0.00 33,350.0000 0 9999.99% 0.00%
June 12, 2024 Schall Thomas J. Director A Stock Option 8588 $0.00 8,588.0000 0 9999.99% 0.00%
June 12, 2024 CARPENTER ROBERT J Director A Stock Option 33350 $0.00 33,350.0000 0 9999.99% 0.00%
June 12, 2024 Feinberg Peter Director A Stock Option 33350 $0.00 33,350.0000 0 9999.99% 0.00%
June 12, 2024 BERMAN ANN E Director A Stock Option 33350 $0.00 33,350.0000 0 9999.99% 0.00%
June 12, 2024 HAUSMAN DIANA Director A Stock Option 33350 $0.00 33,350.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 60500 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 72000 $0.00 72,000.0000 0 50.00% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 72000 $0.00 72,000.0000 0 9999.99% 0.00%
May 21, 2024 Brakewood Harold Eugene Chief Business Officer D Stock Option 165000 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Brakewood Harold Eugene Chief Business Officer A Stock Option 165000 $0.00 165,000.0000 0 9999.99% 0.00%
May 21, 2024 Brakewood Harold Eugene Chief Business Officer D Stock Option 60500 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Brakewood Harold Eugene Chief Business Officer A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER D Stock Option 88600 $0.00 60,500.0000 0 59.42% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 105000 $0.00 105,000.0000 0 9999.99% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER D Stock Option 60500 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 88600 $0.00 88,600.0000 0 9999.99% 0.00%
May 21, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER D Stock Option 105000 $0.00 60,500.0000 0 63.44% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 101116 $0.00 101,116.0000 0 9999.99% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY D Stock Option 101116 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY D Stock Option 47300 $0.00 93,000.0000 0 33.71% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 47300 $0.00 47,300.0000 0 9999.99% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY D Stock Option 143000 $0.00 93,000.0000 0 60.59% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 143000 $0.00 143,000.0000 0 9999.99% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY D Stock Option 93000 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 93000 $0.00 93,000.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 10000 $0.00 72,000.0000 0 12.20% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 10000 $0.00 10,000.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 23850 $0.00 72,000.0000 0 24.88% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 23850 $0.00 23,850.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 5000 $0.00 72,000.0000 0 6.49% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 5000 $0.00 5,000.0000 0 9999.99% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer D Stock Option 15000 $0.00 0.0000 0 100.00% 0.00%
May 21, 2024 Morales Mallory Chief Accounting Officer A Stock Option 15000 $0.00 15,000.0000 0 9999.99% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 100 $3.05 3,294,773.0000 0 0.00% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 100 $3.07 3,295,173.0000 0 0.00% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 300 $3.07 3,294,873.0000 0 0.01% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 600 $3.03 3,294,173.0000 0 0.02% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 10 $3.01 3,294,163.0000 0 0.00% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 10 $2.98 3,294,153.0000 0 0.00% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 280 $2.97 3,293,873.0000 0 0.01% 0.00%
April 1, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 398600 $2.90 2,895,273.0000 0 12.10% 0.00%
March 22, 2024 Morales Mallory Chief Accounting Officer P Class A Common Stock 393 $2.55 8,278.0000 0 4.98% 0.00%
March 22, 2024 Schall Thomas J. Not found P Class A Common Stock 2900 $2.55 2,900.0000 0 9999.99% 0.00%
March 22, 2024 Feinberg Peter Director P Class A Common Stock 25000 $2.55 1,096,064.0000 0 2.33% 0.00%
March 22, 2024 Brakewood Harold Eugene Chief Business Officer P Class A Common Stock 3900 $2.57 3,900.0000 0 9999.99% 0.00%
March 15, 2024 Morales Mallory Chief Accounting Officer A Class A Common Stock 4344 $1.62 6,778.0000 0 178.47% 0.00%
March 21, 2024 Morales Mallory Chief Accounting Officer P Class A Common Stock 1107 $2.72 7,885.0000 0 16.33% 0.00%
March 15, 2024 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Class A Common Stock 6211 $1.62 338,896.0000 0 1.87% 0.00%
March 15, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER A Class A Common Stock 6211 $1.62 6,211.0000 0 9999.99% 0.00%
March 20, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER P Class A Common Stock 3818 $2.88 10,029.0000 0 61.47% 0.00%
March 20, 2024 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER P Class A Common Stock 7000 $2.86 345,896.0000 0 2.07% 0.00%
March 19, 2024 Zeskind Benjamin J. PRESIDENT AND CEO P Class A Common Stock 20000 $2.77 3,176,779.0000 0 0.63% 0.00%
March 19, 2024 Feinberg Peter Director P Class A Common Stock 25000 $2.56 1,071,064.0000 0 2.39% 0.00%
March 18, 2024 Feinberg Peter Director P Class A Common Stock 4976 $3.05 1,046,064.0000 0 0.48% 0.00%
March 18, 2024 Feinberg Peter Director P Class A Common Stock 45024 $2.31 1,041,088.0000 0 4.52% 0.00%
March 18, 2024 BERMAN ANN E Director P Class A Common Stock 57965 $2.13 67,465.0000 0 610.16% 0.00%
March 15, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Class A Common Stock 1448 $1.62 3,850.0000 0 60.28% 0.00%
March 15, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 400000 $2.14 3,295,273.0000 0 10.82% 0.00%
March 14, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 345266 $3.24 3,859,098.0000 0 8.21% 0.00%
March 14, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 11040 $5.97 3,695,273.0000 0 0.30% 0.00%
March 14, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 54215 $5.37 3,706,313.0000 0 1.44% 0.00%
March 14, 2024 Cormorant Asset Management, LP Not found S Class A Common Stock 98570 $4.25 3,760,528.0000 0 2.55% 0.00%
March 11, 2024 Schall Thomas J. Not found A Stock Option 35000 $0.00 35,000.0000 0 9999.99% 0.00%
Feb. 8, 2024 Neufeld Leah R CHIEF PEOPLE OFFICER A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
Feb. 8, 2024 Brakewood Harold Eugene Chief Business Officer A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
Feb. 8, 2024 Zeskind Benjamin J. PRESIDENT AND CEO A Stock Option 16414 $0.00 16,414.0000 0 9999.99% 0.00%
Feb. 8, 2024 Zeskind Benjamin J. PRESIDENT AND CEO A Stock Option 244286 $0.00 244,286.0000 0 9999.99% 0.00%
Feb. 8, 2024 Hall Brett Matthew CHIEF SCIENTIFIC OFFICER A Stock Option 130900 $0.00 130,900.0000 0 9999.99% 0.00%
Feb. 8, 2024 Bookman Michael CHIEF LEGAL OFFICER, SECRETARY A Stock Option 93000 $0.00 93,000.0000 0 9999.99% 0.00%
Feb. 8, 2024 Morales Mallory Chief Accounting Officer A Stock Option 60500 $0.00 60,500.0000 0 9999.99% 0.00%
Jan. 1, 2024 Feinberg Peter Director A Stock Option 6879 $0.00 6,879.0000 0 9999.99% 0.00%
Jan. 1, 2024 KEATING LAURIE Director A Stock Option 6879 $0.00 6,879.0000 0 9999.99% 0.00%