{"transactions":[{"id":924401,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-02-02T21:01:11.000Z","date":"2026-01-30","kind":"grant","planned":false,"acquired":true,"shares":300000,"price":5.71,"value":1713000.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 25% of the underlying shares of common stock on January 30, 2027, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter."}],"balance_after":300000,"derivative":{"exercise_price":5.71,"expiration_date":"2036-01-29","underlying":"Common Stock","underlying_shares":300000},"source":{"system":"sec-edgar","filing":"0001831749-26-000002","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000183174926000002/primarydocument.xml","form_type":"4"}},{"id":1295289,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-01-24T21:09:02.000Z","date":"2025-01-22","kind":"grant","planned":false,"acquired":true,"shares":140000,"price":4.37,"value":611800.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 25% of the underlying shares of common stock on January 22, 2026, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter."}],"balance_after":140000,"derivative":{"exercise_price":4.37,"expiration_date":"2035-01-21","underlying":"Common Stock","underlying_shares":140000},"source":{"system":"sec-edgar","filing":"0001562180-25-000500","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218025000500/primarydocument.xml","form_type":"4"}},{"id":1409369,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2024-09-11T20:00:27.000Z","date":"2024-09-09","kind":"sale","planned":true,"acquired":false,"shares":20000,"price":9.5,"value":190000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan that was adopted by the reporting person on March 11, 2024."}],"balance_after":101957,"source":{"system":"sec-edgar","filing":"0001562180-24-006767","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218024006767/primarydocument.xml","form_type":"4"}},{"id":1670622,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-01-25T21:02:33.000Z","date":"2024-01-24","kind":"grant","planned":false,"acquired":true,"shares":110000,"price":3.06,"value":336600.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 25% of the underlying shares of common stock on January 24, 2025, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter."}],"balance_after":110000,"derivative":{"exercise_price":3.06,"expiration_date":"2034-01-23","underlying":"Common Stock","underlying_shares":110000},"source":{"system":"sec-edgar","filing":"0001562180-24-000606","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218024000606/primarydocument.xml","form_type":"4"}},{"id":2041765,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Option (right to buy)","published_at":"2023-01-30T22:03:54.000Z","date":"2023-01-26","kind":"grant","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 25% of the underlying shares of common stock on January 26, 2024, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter."}],"balance_after":100000,"derivative":{"exercise_price":8.38,"expiration_date":"2033-01-25","underlying":"Common Stock","underlying_shares":100000},"source":{"system":"sec-edgar","filing":"0001562180-23-000726","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218023000726/primarydocument.xml","form_type":"4"}},{"id":2185232,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Options (Right to buy)","published_at":"2022-08-15T22:15:12.000Z","date":"2022-08-11","kind":"exercise","acquired":false,"shares":1858,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vested as to 25% of the underlying shares of common stock on January 30, 2020, the first anniversary of the of the vesting commencement date, and at a rate of 6.25% of the underlying shares thereafter on the first day of each calendar quarter following such first anniversary until the option is fully vested."}],"balance_after":3716,"derivative":{"exercise_price":3.72,"expiration_date":"2029-02-12","underlying":"Common Stock","underlying_shares":1858},"source":{"system":"sec-edgar","filing":"0001562180-22-006087","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022006087/primarydocument.xml","form_type":"4"}},{"id":2185231,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2022-08-15T22:15:12.000Z","date":"2022-08-11","kind":"exercise","acquired":true,"shares":1858,"price":3.72,"value":6911.76,"ownership":{"direct":true},"balance_after":121957,"source":{"system":"sec-edgar","filing":"0001562180-22-006087","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022006087/primarydocument.xml","form_type":"4"}},{"id":2252611,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Options (Right to buy)","published_at":"2022-05-27T20:10:14.000Z","date":"2022-05-25","kind":"exercise","acquired":false,"shares":3717,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vested as to 25% of the underlying shares of common stock on January 30, 2020, the first anniversary of the of the vesting commencement date, and at a rate of 6.25% of the underlying shares thereafter on the first day of each calendar quarter following such first anniversary until the option is fully vested."}],"balance_after":5574,"derivative":{"exercise_price":3.72,"expiration_date":"2029-02-13","underlying":"Common Stock","underlying_shares":3717},"source":{"system":"sec-edgar","filing":"0001562180-22-004545","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022004545/primarydocument.xml","form_type":"4"}},{"id":2252610,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Options (Right to buy)","published_at":"2022-05-27T20:10:14.000Z","date":"2022-05-25","kind":"exercise","acquired":false,"shares":675,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vested at a rate of 6.25% of the underlying shares beginning on April 1, 2018 and thereafter on the first day of each calendar quarter until the option was fully vested."}],"balance_after":0,"derivative":{"exercise_price":0.73,"expiration_date":"2028-01-30","underlying":"Common Stock","underlying_shares":675},"source":{"system":"sec-edgar","filing":"0001562180-22-004545","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022004545/primarydocument.xml","form_type":"4"}},{"id":2252609,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2022-05-27T20:10:14.000Z","date":"2022-05-25","kind":"exercise","acquired":true,"shares":3717,"price":3.72,"value":13827.24,"ownership":{"direct":true},"balance_after":120099,"source":{"system":"sec-edgar","filing":"0001562180-22-004545","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022004545/primarydocument.xml","form_type":"4"}},{"id":2252608,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2022-05-27T20:10:14.000Z","date":"2022-05-25","kind":"exercise","acquired":true,"shares":675,"price":0.73,"value":492.75,"ownership":{"direct":true},"balance_after":116382,"source":{"system":"sec-edgar","filing":"0001562180-22-004545","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022004545/primarydocument.xml","form_type":"4"}},{"id":2422111,"issuer":{"id":5820,"kind":"organization","name":"Foghorn Therapeutics Inc.","symbol":"FHTX"},"owners":[{"id":68153,"kind":"person","name":"Bellon Steven F.","position":1,"cik":"0001831749","reported_name":"Bellon Steven F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-01-28T21:27:23.000Z","date":"2022-01-26","kind":"grant","acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vested as to 25% of the underlying shares of common stock on January 26, 2023, the first anniversary of the of the vesting commencement date, and at a rate of 6.25% of the underlying shares thereafter on the first day of each calendar quarter following such first anniversary until the option is fully vested."}],"balance_after":150000,"derivative":{"exercise_price":14.87,"expiration_date":"2032-01-25","underlying":"Common Stock","underlying_shares":150000},"source":{"system":"sec-edgar","filing":"0001562180-22-000750","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1822462/000156218022000750/primarydocument.xml","form_type":"4"}}]}