Last 12 months
Inside the activity.
7 purchase rows · 0 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 5 | 0 |
| Feb 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 2 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| July 16, 2026 Filed Jul 17, 2026 20:29 UTC |
Gengos AndrewChief Financial Officer
|
GrantStock Option · Derivative | 650,000 | $0.00 Strike: $4.78 | $0.00 |
DisclosureSEC source: 0001790340-26-000082 · wk-form4_1784320143.xml · derivative · entry 1 Gengos Andrew · CIK 0001563623 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 650,000 Underlying: Class A Common Stock · 650,000 shares Expires 2036-07-16 F1 · derivative.exercise_date: Subject to the reporting person's continued employment through each applicable vesting date, 8.33333% of the shares underlying the stock option shall vest on each of the first, second and third monthly anniversary of the grant transaction date (the "Grant Date"); 1.6667% of the shares underlying the stock option shall vest on the fourth monthly anniversary of the Grant Date and on each monthly anniversary thereafter until the one year anniversary of the Grant Date; 3.33333% of the shares underlying the stock option shall vest on each monthly anniversary following the one-year anniversary of the Grant Date until the second anniversary of the Grant Date; and 0.833333% of the of the shares underlying the stock option shall vest on each monthly anniversary following the second anniversary of the Grant Date until the fourth anniversary of the Grant Date, such that all shares underlying the stock option shall be fully vested on the fourth anniversary of the Grant Date. Read SEC document |
| June 23, 2026 Filed Jun 24, 2026 20:11 UTC |
Zeskind Benjamin J.Director · PRESIDENT AND CEO
|
PurchaseClass A Common Stock | 2,400 | $4.56 | $10,948.08 |
DisclosureSEC source: 0001790340-26-000078 · wk-form4_1782331885.xml · nonDerivative · entry 1 Zeskind Benjamin J. · CIK 0001870062 · Director · PRESIDENT AND CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,315,252 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $4.55 to $4.59. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 15, 2026 Filed Jun 16, 2026 20:15 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
|
PurchaseClass A Common Stock | 6,035 | $4.15 | $25,045.25 |
DisclosureSEC source: 0001790340-26-000076 · wk-form4_1781640910.xml · nonDerivative · entry 1 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 382,531 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $4.146 to $4.15. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 11, 2026 Filed Jun 11, 2026 21:29 UTC |
CARPENTER ROBERT JDirector
|
GrantStock Option · Derivative | 33,350 | $0.00 Strike: $4.12 | $0.00 |
DisclosureSEC source: 0001790340-26-000068 · wk-form4_1781213381.xml · derivative · entry 1 CARPENTER ROBERT J · CIK 0001021046 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2036-06-11 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 11, 2026, and will be fully vested and exercisable on June 11, 2027, or the date of the 2027 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 11, 2026 Filed Jun 11, 2026 21:23 UTC |
Feinberg PeterDirector
|
GrantStock Option · Derivative | 33,350 | $0.00 Strike: $4.12 | $0.00 |
DisclosureSEC source: 0001790340-26-000064 · wk-form4_1781213003.xml · derivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2036-06-11 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 11, 2026, and will be fully vested and exercisable on June 11, 2027, or the date of the 2027 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 11, 2026 Filed Jun 11, 2026 21:26 UTC |
KEATING LAURIEDirector
|
GrantStock Option · Derivative | 33,350 | $0.00 Strike: $4.12 | $0.00 |
DisclosureSEC source: 0001790340-26-000066 · wk-form4_1781213173.xml · derivative · entry 1 KEATING LAURIE · CIK 0001620743 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2036-06-11 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 11, 2026, and will be fully vested and exercisable on June 11, 2027, or the date of the 2027 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 11, 2026 Filed Jun 11, 2026 21:37 UTC |
Schall Thomas J.Director
|
GrantStock Option · Derivative | 33,350 | $0.00 Strike: $4.12 | $0.00 |
DisclosureSEC source: 0001790340-26-000072 · wk-form4_1781213861.xml · derivative · entry 1 Schall Thomas J. · CIK 0001423084 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2036-06-11 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 11, 2026, and will be fully vested and exercisable on June 11, 2027, or the date of the 2027 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 11, 2026 Filed Jun 11, 2026 21:33 UTC |
HAUSMAN DIANADirector
|
GrantStock Option · Derivative | 33,350 | $0.00 Strike: $4.12 | $0.00 |
DisclosureSEC source: 0001790340-26-000070 · wk-form4_1781213596.xml · derivative · entry 1 HAUSMAN DIANA · CIK 0001563992 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2036-06-11 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 11, 2026, and will be fully vested and exercisable on June 11, 2027, or the date of the 2027 annual meeting of stockholders, whichever comes first. Read SEC document |
| March 13, 2026 Filed Mar 17, 2026 20:46 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
GrantClass A Common Stock | 3,628 | $4.29 | $15,573.19 |
DisclosureSEC source: 0001790340-26-000044 · wk-form4_1773780394.xml · nonDerivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,598 F1 · security: The reporting person is voluntarily reporting the acquisition of shares of the issuer's Class A Common Stock pursuant to the Immuneering Corporation 2021 Employee Stock Purchase Plan (the "ESPP"), for the ESPP purchase period of September 16, 2025 through March 15, 2026. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934. F2 · date: The relevant Offering Period (as defined in the ESPP) ended on March 15, 2026. The shares were acquired on the Purchase Date (as defined in the ESPP) of March 13, 2026. F3 · price: In accordance with the ESPP, the shares were purchased at a price not less than eighty-five percent (85%) of the Fair Market Value (as defined in the ESPP) of a share of Class A Common Stock on the Purchase Date of the relevant Offering Period. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:10 UTC |
Zeskind Benjamin J.Director · PRESIDENT AND CEO
|
GrantStock Option · Derivative | 688,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000022 · wk-form4_1770297015.xml · derivative · entry 1 Zeskind Benjamin J. · CIK 0001870062 · Director · PRESIDENT AND CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 688,000 Underlying: Class A Common Stock · 688,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 08:27 UTC |
Matushansky IgorChief Medical Officer
|
GrantStock Option · Derivative | 140,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000028 · wk-form4_1770298047.xml · derivative · entry 1 Matushansky Igor · CIK 0001768208 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,000 Underlying: Class A Common Stock · 140,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:44 UTC |
Bookman MichaelCHIEF LEGAL OFFICER, SECRETARY
|
GrantStock Option · Derivative | 176,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000034 · wk-form4_1770299088.xml · derivative · entry 1 Bookman Michael · CIK 0001840339 · CHIEF LEGAL OFFICER, SECRETARY 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 176,000 Underlying: Class A Common Stock · 176,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:37 UTC |
Brakewood Harold EugeneChief Business Officer
|
GrantStock Option · Derivative | 140,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000032 · wk-form4_1770298673.xml · derivative · entry 1 Brakewood Harold Eugene · CIK 0001969578 · Chief Business Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,000 Underlying: Class A Common Stock · 140,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:32 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
|
GrantStock Option · Derivative | 344,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000030 · wk-form4_1770298352.xml · derivative · entry 1 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 344,000 Underlying: Class A Common Stock · 344,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:22 UTC |
Morales MallorySVP Finance, CAO
|
GrantStock Option · Derivative | 140,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000026 · wk-form4_1770297748.xml · derivative · entry 1 Morales Mallory · CIK 0001941795 · SVP Finance, CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,000 Underlying: Class A Common Stock · 140,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 13:14 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
GrantStock Option · Derivative | 140,000 | $0.00 Strike: $4.91 | $0.00 |
DisclosureSEC source: 0001790340-26-000024 · wk-form4_1770297286.xml · derivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,000 Underlying: Class A Common Stock · 140,000 shares Expires 2036-02-03 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2026, and will be fully vested and exercisable on January 1, 2030. Read SEC document |
| January 16, 2026 Filed Jan 21, 2026 14:09 UTC |
Brakewood Harold EugeneChief Business Officer
|
PurchaseClass A Common Stock | 5,250 | $4.76 | $24,990.00 |
DisclosureSEC source: 0001790340-26-000016 · wk-form4_1769004593.xml · nonDerivative · entry 1 Brakewood Harold Eugene · CIK 0001969578 · Chief Business Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,050 Read SEC document |
| January 15, 2026 Filed Jan 16, 2026 21:07 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
|
PurchaseClass A Common Stock | 2,298 | $4.57 | $10,501.86 |
DisclosureSEC source: 0001790340-26-000012 · wk-form4_1768597660.xml · nonDerivative · entry 1 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 376,496 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $4.57 to $4.571. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| January 15, 2026 Filed Jan 20, 2026 14:17 UTC |
Schall Thomas J.Director
|
PurchaseClass A Common Stock | 21,645 | $4.67 | $101,041.02 |
DisclosureSEC source: 0001790340-26-000014 · wk-form4_1768918646.xml · nonDerivative · entry 1 Schall Thomas J. · CIK 0001423084 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 74,530 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $4.61 to $4.69. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| January 13, 2026 Filed Jan 15, 2026 13:06 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
PurchaseClass A Common Stock | 2,626 | $4.15 | $10,905.78 |
DisclosureSEC source: 0001790340-26-000010 · wk-form4_1768482368.xml · nonDerivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,970 Read SEC document |
| January 12, 2026 Filed Jan 14, 2026 13:10 UTC |
Feinberg PeterDirector
|
PurchaseClass A Common Stock | 20,000 | $4.35 | $86,904.00 |
DisclosureSEC source: 0001790340-26-000008 · wk-form4_1768396231.xml · nonDerivative · entry 4 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · General Partner of S4K Investments LLC. Disclosed balance after: 135,441 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $4.315 to $4.38. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| January 01, 2026 Filed Jan 2, 2026 21:50 UTC |
Feinberg PeterDirector
|
GrantStock Option · Derivative | 7,888 | $0.00 Strike: $6.58 | $0.00 |
DisclosureSEC source: 0001790340-26-000002 · wk-form4_1767390602.xml · derivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,888 Underlying: Class A Common Stock · 7,888 shares Expires 2036-01-01 F1 · security: Pursuant to the Immuneering Corporation Non-Employee Director Compensation Program (the "Compensation Program"), the reporting person elected to receive this stock option in lieu of receiving the cash Base Retainer (as defined in the Compensation Program). F2 · derivative.exercise_date: The option vests and becomes exercisable as to 25% of the shares subject to the option upon the reporting person completing three months of continuous service as a Non-Employee Director (as defined in the Compensation Program) following the grant date, such that the fourth and final installment will vest and become exercisable on the first anniversary of the grant date, subject in each case to such continuous service. Read SEC document |
| January 01, 2026 Filed Jan 2, 2026 21:56 UTC |
KEATING LAURIEDirector
|
GrantStock Option · Derivative | 7,888 | $0.00 Strike: $6.58 | $0.00 |
DisclosureSEC source: 0001790340-26-000004 · wk-form4_1767390971.xml · derivative · entry 1 KEATING LAURIE · CIK 0001620743 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,888 Underlying: Class A Common Stock · 7,888 shares Expires 2036-01-01 F1 · security: Pursuant to the Immuneering Corporation Non-Employee Director Compensation Program (the "Compensation Program"), the reporting person elected to receive this stock option in lieu of receiving the cash Base Retainer (as defined in the Compensation Program). F2 · derivative.exercise_date: The option vests and becomes exercisable as to 25% of the shares subject to the option upon the reporting person completing three months of continuous service as a Non-Employee Director (as defined in the Compensation Program) following the grant date, such that the fourth and final installment will vest and become exercisable on the first anniversary of the grant date, subject in each case to such continuous service. Read SEC document |
| October 03, 2025 Filed Oct 7, 2025 12:56 UTC |
Feinberg PeterDirector
|
PurchaseClass A Common Stock | 7,500 | $6.67 | $50,025.00 |
DisclosureSEC source: 0001790340-25-000127 · wk-form4_1759841769.xml · nonDerivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 156,766 Read SEC document |
| October 01, 2025 Filed Oct 2, 2025 12:57 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
PurchaseClass A Common Stock | 800 | $6.38 | $5,103.36 |
DisclosureSEC source: 0001790340-25-000123 · wk-form4_1759409848.xml · nonDerivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,344 Read SEC document |
| October 01, 2025 Filed Oct 2, 2025 13:02 UTC |
Morales MalloryChief Accounting Officer
|
PurchaseClass A Common Stock | 300 | $6.39 | $1,917.00 |
DisclosureSEC source: 0001790340-25-000125 · wk-form4_1759410175.xml · nonDerivative · entry 1 Morales Mallory · CIK 0001941795 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,533 Read SEC document |
| October 01, 2025 Filed Oct 2, 2025 12:52 UTC |
Bookman MichaelCHIEF LEGAL OFFICER, SECRETARY
|
PurchaseClass A Common Stock | 1,020 | $6.83 | $6,966.50 |
DisclosureSEC source: 0001790340-25-000121 · wk-form4_1759409561.xml · nonDerivative · entry 1 Bookman Michael · CIK 0001840339 · CHIEF LEGAL OFFICER, SECRETARY 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,870 Read SEC document |
| September 30, 2025 Filed Oct 1, 2025 12:59 UTC |
Feinberg PeterDirector
|
PurchaseClass A Common Stock | 7,500 | $7.03 | $52,730.25 |
DisclosureSEC source: 0001790340-25-000119 · wk-form4_1759323577.xml · nonDerivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 149,266 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $7.0049 to $7.055. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| September 29, 2025 Filed Sep 30, 2025 13:00 UTC |
Feinberg PeterDirector
|
PurchaseClass A Common Stock | 5,000 | $7.18 | $35,900.00 |
DisclosureSEC source: 0001790340-25-000117 · wk-form4_1759237255.xml · nonDerivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 141,766 Read SEC document |
| September 15, 2025 Filed Sep 17, 2025 20:41 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
GrantClass A Common Stock | 11,815 | $1.43 | $16,871.82 |
DisclosureSEC source: 0001790340-25-000115 · wk-form4_1758141678.xml · nonDerivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,544 F1 · security: The reporting person is voluntarily reporting the acquisition of shares of the issuer's Class A Common Stock pursuant to the Immuneering Corporation 2021 Employee Stock Purchase Plan (the "ESPP"), for the ESPP purchase period of March 16, 2025 through September 15, 2025. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934. F2 · date: The relevant Offering Period (as defined in the ESPP) ended, and the shares were acquired, on the Purchase Date (as defined in the ESPP) of September 15, 2025. F3 · price: In accordance with the ESPP, the shares were purchased at a price not less than eighty-five percent (85%) of the Fair Market Value (as defined in the ESPP) of a share of Class A Common Stock on the Enrollment Date (as defined in the ESPP) of the relevant Offering Period. Read SEC document |
| September 15, 2025 Filed Sep 17, 2025 20:35 UTC |
Morales MalloryChief Accounting Officer
|
GrantClass A Common Stock | 14,497 | $1.43 | $20,701.72 |
DisclosureSEC source: 0001790340-25-000113 · wk-form4_1758141356.xml · nonDerivative · entry 1 Morales Mallory · CIK 0001941795 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,233 F1 · security: The reporting person is voluntarily reporting the acquisition of shares of the issuer's Class A Common Stock pursuant to the Immuneering Corporation 2021 Employee Stock Purchase Plan (the "ESPP"), for the ESPP purchase period of March 16, 2025 through September 15, 2025. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934. F2 · date: The relevant Offering Period (as defined in the ESPP) ended, and the shares were acquired, on the Purchase Date (as defined in the ESPP) of September 15, 2025. F3 · price: In accordance with the ESPP, the shares were purchased at a price not less than eighty-five percent (85%) of the Fair Market Value (as defined in the ESPP) of a share of Class A Common Stock on the Enrollment Date (as defined in the ESPP) of the relevant Offering Period. Read SEC document |
| September 15, 2025 Filed Sep 17, 2025 20:30 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
|
GrantClass A Common Stock | 14,880 | $1.43 | $21,248.64 |
DisclosureSEC source: 0001790340-25-000111 · wk-form4_1758141012.xml · nonDerivative · entry 1 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 374,198 F1 · security: The reporting person is voluntarily reporting the acquisition of shares of the issuer's Class A Common Stock pursuant to the Immuneering Corporation 2021 Employee Stock Purchase Plan (the "ESPP"), for the ESPP purchase period of March 16, 2025 through September 15, 2025. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934. F2 · date: The relevant Offering Period (as defined in the ESPP) ended, and the shares were acquired, on the Purchase Date (as defined in the ESPP) of September 15, 2025. F3 · price: In accordance with the ESPP, the shares were purchased at a price not less than eighty-five percent (85%) of the Fair Market Value (as defined in the ESPP) of a share of Class A Common Stock on the Enrollment Date (as defined in the ESPP) of the relevant Offering Period. Read SEC document |
| July 02, 2025 Filed Jul 3, 2025 13:12 UTC |
Zeskind Benjamin J.Director · PRESIDENT AND CEO · 10% owner
|
PurchaseClass A Common Stock | 7,015 | $3.53 | $24,792.41 |
DisclosureSEC source: 0001790340-25-000094 · wk-form4_1751548321.xml · nonDerivative · entry 2 Zeskind Benjamin J. · CIK 0001870062 · Director · PRESIDENT AND CEO · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,312,852 F2 · balance_after: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $3.45 to $3.64. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| July 02, 2025 Filed Jul 7, 2025 12:59 UTC |
HAUSMAN DIANADirector
|
PurchaseClass A Common Stock | 3,000 | $3.62 | $10,873.50 |
DisclosureSEC source: 0001790340-25-000098 · wk-form4_1751893158.xml · nonDerivative · entry 2 HAUSMAN DIANA · CIK 0001563992 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · By spouse Disclosed balance after: 3,000 Read SEC document |
| July 02, 2025 Filed Jul 7, 2025 12:59 UTC |
HAUSMAN DIANADirector
|
PurchaseClass A Common Stock | 2,500 | $3.60 | $8,989.00 |
DisclosureSEC source: 0001790340-25-000098 · wk-form4_1751893158.xml · nonDerivative · entry 1 HAUSMAN DIANA · CIK 0001563992 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,500 Read SEC document |
| July 02, 2025 Filed Jul 7, 2025 12:52 UTC |
Neufeld Leah RCHIEF PEOPLE OFFICER
|
PurchaseClass A Common Stock | 700 | $3.57 | $2,498.65 |
DisclosureSEC source: 0001790340-25-000096 · wk-form4_1751892717.xml · nonDerivative · entry 1 Neufeld Leah R · CIK 0001950673 · CHIEF PEOPLE OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,729 Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 13:12 UTC |
Zeskind Benjamin J.Director · PRESIDENT AND CEO · 10% owner
|
PurchaseClass A Common Stock | 2,985 | $3.38 | $10,086.91 |
DisclosureSEC source: 0001790340-25-000094 · wk-form4_1751548321.xml · nonDerivative · entry 1 Zeskind Benjamin J. · CIK 0001870062 · Director · PRESIDENT AND CEO · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,305,837 F1 · balance_after: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $3.35 to $3.41. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 27, 2025 Filed Jun 30, 2025 13:09 UTC |
Schall Thomas J.Director
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PurchaseClass A Common Stock | 9,500 | $3.66 | $34,788.05 |
DisclosureSEC source: 0001790340-25-000089 · wk-form4_1751288953.xml · nonDerivative · entry 1 Schall Thomas J. · CIK 0001423084 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 52,885 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $3.6 to $3.73. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 23, 2025 Filed Jun 24, 2025 13:01 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
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PurchaseClass A Common Stock | 6,007 | $2.43 | $14,596.41 |
DisclosureSEC source: 0001790340-25-000087 · wk-form4_1750770096.xml · nonDerivative · entry 2 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 359,318 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $2.4101 to $2.4299. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 20, 2025 Filed Jun 24, 2025 12:52 UTC |
Brakewood Harold EugeneChief Business Officer
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PurchaseClass A Common Stock | 1,900 | $2.53 | $4,804.15 |
DisclosureSEC source: 0001790340-25-000085 · wk-form4_1750769533.xml · nonDerivative · entry 1 Brakewood Harold Eugene · CIK 0001969578 · Chief Business Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,800 Read SEC document |
| June 20, 2025 Filed Jun 24, 2025 13:01 UTC |
Hall Brett MatthewCHIEF SCIENTIFIC OFFICER
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PurchaseClass A Common Stock | 7,415 | $2.70 | $20,019.76 |
DisclosureSEC source: 0001790340-25-000087 · wk-form4_1750770096.xml · nonDerivative · entry 1 Hall Brett Matthew · CIK 0001870437 · CHIEF SCIENTIFIC OFFICER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 353,311 Read SEC document |
| June 18, 2025 Filed Jun 20, 2025 13:09 UTC |
Zeskind Benjamin J.Director · PRESIDENT AND CEO · 10% owner
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PurchaseClass A Common Stock | 21,000 | $2.39 | $50,143.80 |
DisclosureSEC source: 0001790340-25-000081 · wk-form4_1750424967.xml · nonDerivative · entry 1 Zeskind Benjamin J. · CIK 0001870062 · Director · PRESIDENT AND CEO · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,302,852 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $2.31 to $2.44. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 13:09 UTC |
Feinberg PeterDirector
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PurchaseClass A Common Stock | 25,000 | $2.53 | $63,187.50 |
DisclosureSEC source: 0001790340-25-000083 · wk-form4_1750684190.xml · nonDerivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 136,766 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $2.07 to $2.96. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 17, 2025 Filed Jun 18, 2025 13:11 UTC |
Schall Thomas J.Director
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PurchaseClass A Common Stock | 40,485 | $2.21 | $89,277.52 |
DisclosureSEC source: 0001790340-25-000079 · wk-form4_1750252275.xml · nonDerivative · entry 1 Schall Thomas J. · CIK 0001423084 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 43,385 F1 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $2.16 to $2.24. The price reported in this column reflects the weighted average purchase price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares acquired at each price. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 12:59 UTC |
CARPENTER ROBERT JDirector
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000067 · wk-form4_1750078761.xml · derivative · entry 1 CARPENTER ROBERT J · CIK 0001021046 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 13:04 UTC |
Feinberg PeterDirector
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000069 · wk-form4_1750079056.xml · derivative · entry 1 Feinberg Peter · CIK 0001870076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 13:09 UTC |
KEATING LAURIEDirector
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000071 · wk-form4_1750079353.xml · derivative · entry 1 KEATING LAURIE · CIK 0001620743 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 13:15 UTC |
Schall Thomas J.Director
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000073 · wk-form4_1750079729.xml · derivative · entry 1 Schall Thomas J. · CIK 0001423084 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 08:54 UTC |
BERMAN ANN EDirector
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000065 · wk-form4_1750078473.xml · derivative · entry 1 BERMAN ANN E · CIK 0001349408 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
| June 13, 2025 Filed Jun 16, 2025 13:21 UTC |
HAUSMAN DIANADirector
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GrantStock Option · Derivative | 33,350 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001790340-25-000075 · wk-form4_1750080081.xml · derivative · entry 1 HAUSMAN DIANA · CIK 0001563992 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,350 Underlying: Class A Common Stock · 33,350 shares Expires 2035-06-13 F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a one-year period commencing on July 13, 2025, and will be fully vested and exercisable on June 13, 2026, or the date of the 2026 annual meeting of stockholders, whichever comes first. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.