{"transactions":[{"id":836507,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2026-03-17T20:46:41.000Z","date":"2026-03-13","kind":"grant","planned":false,"acquired":true,"shares":3628,"price":4.2925,"value":15573.19,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"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\n\"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\n1934."},{"field":"date","element":"transactionDate","label":"F2","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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\nthe Purchase Date of the relevant Offering Period."}],"balance_after":29598,"source":{"system":"sec-edgar","filing":"0001790340-26-000044","document":"wk-form4_1773780394.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034026000044/wk-form4_1773780394.xml","form_type":"4"}},{"id":917250,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2026-02-05T13:14:49.000Z","date":"2026-02-03","kind":"grant","planned":false,"acquired":true,"shares":140000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."}],"balance_after":140000,"derivative":{"exercise_price":4.91,"expiration_date":"2036-02-03","underlying":"Class A Common Stock","underlying_shares":140000},"source":{"system":"sec-edgar","filing":"0001790340-26-000024","document":"wk-form4_1770297286.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034026000024/wk-form4_1770297286.xml","form_type":"4"}},{"id":938260,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2026-01-15T13:06:11.000Z","date":"2026-01-13","kind":"purchase","planned":false,"acquired":true,"shares":2626,"price":4.153,"value":10905.778,"ownership":{"direct":true},"balance_after":25970,"source":{"system":"sec-edgar","filing":"0001790340-26-000010","document":"wk-form4_1768482368.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034026000010/wk-form4_1768482368.xml","form_type":"4"}},{"id":1026383,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-10-02T12:57:31.000Z","date":"2025-10-01","kind":"purchase","planned":false,"acquired":true,"shares":800,"price":6.3792,"value":5103.36,"ownership":{"direct":true},"balance_after":23344,"source":{"system":"sec-edgar","filing":"0001790340-25-000123","document":"wk-form4_1759409848.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034025000123/wk-form4_1759409848.xml","form_type":"4"}},{"id":1036963,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-09-17T20:41:20.000Z","date":"2025-09-15","kind":"grant","planned":false,"acquired":true,"shares":11815,"price":1.428,"value":16871.82,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"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."},{"field":"date","element":"transactionDate","label":"F2","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":22544,"source":{"system":"sec-edgar","filing":"0001790340-25-000115","document":"wk-form4_1758141678.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034025000115/wk-form4_1758141678.xml","form_type":"4"}},{"id":1091044,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-07-07T12:52:03.000Z","date":"2025-07-02","kind":"purchase","planned":false,"acquired":true,"shares":700,"price":3.5695,"value":2498.65,"ownership":{"direct":true},"balance_after":10729,"source":{"system":"sec-edgar","filing":"0001790340-25-000096","document":"wk-form4_1751892717.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034025000096/wk-form4_1751892717.xml","form_type":"4"}},{"id":1278281,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2025-02-07T21:21:39.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":110000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2025, and will be fully vested and exercisable on January 1, 2029."}],"balance_after":110000,"derivative":{"exercise_price":1.91,"expiration_date":"2035-02-05","underlying":"Class A Common Stock","underlying_shares":110000},"source":{"system":"sec-edgar","filing":"0001790340-25-000030","document":"wk-form4_1738963291.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034025000030/wk-form4_1738963291.xml","form_type":"4"}},{"id":1503124,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"grant","planned":false,"acquired":true,"shares":60500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2024, and will be fully vested and exercisable on January 1, 2028."}],"balance_after":60500,"derivative":{"exercise_price":3.01,"expiration_date":"2034-02-08","underlying":"Class A Common Stock","underlying_shares":60500},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1503123,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":60500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2024, and will be fully vested and exercisable on January 1, 2028."}],"balance_after":0,"derivative":{"exercise_price":6.09,"expiration_date":"2034-02-08","underlying":"Class A Common Stock","underlying_shares":60500},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1503122,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"grant","planned":false,"acquired":true,"shares":105000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2023, and will be fully vested and exercisable on January 1, 2027."}],"balance_after":105000,"derivative":{"exercise_price":3.01,"expiration_date":"2033-02-15","underlying":"Class A Common Stock","underlying_shares":105000},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1503121,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":105000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2023, and will be fully vested and exercisable on January 1, 2027."}],"balance_after":0,"derivative":{"exercise_price":4.25,"expiration_date":"2033-02-15","underlying":"Class A Common Stock","underlying_shares":105000},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1503120,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"grant","planned":false,"acquired":true,"shares":88600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests and becomes exercisable as to 25% of the underlying shares on October 17, 2023 and then in equal monthly installments over the subsequent three years, subject to Ms. Neufeld's continued employment through each applicable vesting date."}],"balance_after":88600,"derivative":{"exercise_price":3.01,"expiration_date":"2032-10-31","underlying":"Class A Common Stock","underlying_shares":88600},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1503119,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-05-23T20:14:30.000Z","date":"2024-05-21","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":88600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 21, 2024, the Issuer's Board of Directors approved an option repricing (the \"Repricing\") whereby the Reporting Person's options were repriced to an exercise price of $3.01 per share. Under the terms of the Repricing, unless there is a change of control of the Issuer, the exercise price for the repriced options will revert to the original exercise price of the option if, prior to June 30, 2025, the Reporting Person: (i) is terminated by the Issuer for cause or resigns from the Issuer, except by reason of death or disability; or (ii) elects to exercise the repriced options. All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests and becomes exercisable as to 25% of the underlying shares on October 17, 2023 and then in equal monthly installments over the subsequent three years, subject to Ms. Neufeld's continued employment through each applicable vesting date."}],"balance_after":0,"derivative":{"exercise_price":13.85,"expiration_date":"2032-10-31","underlying":"Class A Common Stock","underlying_shares":88600},"source":{"system":"sec-edgar","filing":"0001628280-24-024939","document":"wk-form4_1716495251.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000162828024024939/wk-form4_1716495251.xml","form_type":"4"}},{"id":1564495,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2024-03-21T13:11:19.000Z","date":"2024-03-20","kind":"purchase","planned":false,"acquired":true,"shares":3818,"price":2.8793,"value":10993.1674,"ownership":{"direct":true},"balance_after":10029,"source":{"system":"sec-edgar","filing":"0001790340-24-000036","document":"wk-form4_1711026670.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034024000036/wk-form4_1711026670.xml","form_type":"4"}},{"id":1564494,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Class A Common Stock","published_at":"2024-03-21T13:11:19.000Z","date":"2024-03-15","kind":"grant","planned":false,"acquired":true,"shares":6211,"price":1.62,"value":10061.82,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"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 15, 2023 through March 15, 2024. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934."},{"field":"date","element":"transactionDate","label":"F2","text":"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 March 15, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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 March 15, 2024."}],"balance_after":6211,"source":{"system":"sec-edgar","filing":"0001790340-24-000036","document":"wk-form4_1711026670.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034024000036/wk-form4_1711026670.xml","form_type":"4"}},{"id":1651147,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2024-02-09T21:26:08.000Z","date":"2024-02-08","kind":"grant","planned":false,"acquired":true,"shares":60500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2024, and will be fully vested and exercisable on January 1, 2028."}],"balance_after":60500,"derivative":{"exercise_price":6.09,"expiration_date":"2034-02-08","underlying":"Class A Common Stock","underlying_shares":60500},"source":{"system":"sec-edgar","filing":"0001790340-24-000014","document":"wk-form4_1707513951.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000179034024000014/wk-form4_1707513951.xml","form_type":"4"}},{"id":2006292,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2023-02-17T21:16:09.000Z","date":"2023-02-15","kind":"grant","acquired":true,"shares":105000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable in equal monthly installments over a four-year period commencing on February 1, 2023, and will be fully vested and exercisable on January 1, 2027."}],"balance_after":105000,"derivative":{"exercise_price":4.25,"expiration_date":"2033-02-15","underlying":"Class A Common Stock","underlying_shares":105000},"source":{"system":"sec-edgar","filing":"0001415889-23-002759","document":"form4-02172023_040238.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000141588923002759/form4-02172023_040238.xml","form_type":"4"}},{"id":2126795,"issuer":{"id":5884,"kind":"organization","name":"Immuneering Corp"},"owners":[{"id":59755,"kind":"person","name":"Neufeld Leah R","position":1,"cik":"0001950673","reported_name":"Neufeld Leah R","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF PEOPLE OFFICER"}}],"security":"Stock Option","published_at":"2022-11-02T13:03:28.000Z","date":"2022-10-31","kind":"grant","acquired":true,"shares":88600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable as to 25% of the underlying shares on October 17, 2023 and then in equal monthly installments over the subsequent three years, subject to Ms. Neufeld's continued employment through each applicable vesting date."}],"balance_after":88600,"derivative":{"exercise_price":13.85,"expiration_date":"2032-10-31","underlying":"Class A Common Stock","underlying_shares":88600},"source":{"system":"sec-edgar","filing":"0001415889-22-010973","document":"form4-11022022_061118.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1790340/000141588922010973/form4-11022022_061118.xml","form_type":"4"}}]}