{"transactions":[{"id":919653,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-02-04T20:44:13.000Z","date":"2026-02-02","kind":"grant","planned":false,"acquired":true,"shares":130000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares underlying this option vest as to 25% on February 2, 2027, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":130000,"derivative":{"exercise_price":22.67,"expiration_date":"2036-02-02","underlying":"Common Stock","underlying_shares":130000},"source":{"system":"sec-edgar","filing":"0001104659-26-010478","document":"tm265104-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465926010478/tm265104-5_4seq1.xml","form_type":"4"}},{"id":1087443,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":false,"shares":6503,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares underlying this option vested as to 25% on February 1, 2023, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":6370,"derivative":{"exercise_price":2.28,"expiration_date":"2032-01-31","underlying":"Common Stock","underlying_shares":6503},"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1087442,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":false,"shares":2600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares underlying this option vested as to 25% on February 1, 2023, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":12873,"derivative":{"exercise_price":2.28,"expiration_date":"2032-01-31","underlying":"Common Stock","underlying_shares":2600},"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1087441,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":false,"shares":2050,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The shares underlying this option vested as to 25% on September 8, 2022, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":410,"derivative":{"exercise_price":2.28,"expiration_date":"2031-09-07","underlying":"Common Stock","underlying_shares":2050},"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1087440,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":true,"shares":6503,"price":2.28,"value":14826.84,"ownership":{"direct":true},"balance_after":135736,"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1087439,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":true,"shares":2600,"price":2.28,"value":5928.0,"ownership":{"direct":true},"balance_after":129233,"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1087438,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2025-07-15T07:00:15.000Z","date":"2025-07-11","kind":"exercise","planned":false,"acquired":true,"shares":2050,"price":2.28,"value":4674.0,"ownership":{"direct":true},"balance_after":126633,"source":{"system":"sec-edgar","filing":"0001104659-25-067928","document":"tm2520948-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925067928/tm2520948-1_4seq1.xml","form_type":"4"}},{"id":1267697,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-02-14T16:25:46.000Z","date":"2025-02-03","kind":"grant","planned":false,"acquired":true,"shares":120000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares underlying this option vest as to 25% on February 3, 2026, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":120000,"derivative":{"exercise_price":27.56,"expiration_date":"2035-02-03","underlying":"Common Stock","underlying_shares":120000},"source":{"system":"sec-edgar","filing":"0001104659-25-014170","document":"tm256714-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465925014170/tm256714-3_4seq1.xml","form_type":"4"}},{"id":1401079,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":false,"shares":2700,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The shares underlying this option vested as to 25% on August 22, 2024, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":56471,"derivative":{"exercise_price":6.24,"expiration_date":"2033-08-21","underlying":"Common Stock","underlying_shares":2700},"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401078,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":false,"shares":12364,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The shares underlying this option vested as to 25% on February 1, 2024, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":18865,"derivative":{"exercise_price":3.65,"expiration_date":"2033-01-31","underlying":"Common Stock","underlying_shares":12364},"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401077,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":false,"shares":7164,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares underlying this option vested as to 25% on February 1, 2023, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":15473,"derivative":{"exercise_price":2.28,"expiration_date":"2032-01-31","underlying":"Common Stock","underlying_shares":7164},"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401076,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":false,"shares":2867,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares underlying this option vested as to 25% on February 1, 2023, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":22637,"derivative":{"exercise_price":2.28,"expiration_date":"2032-01-31","underlying":"Common Stock","underlying_shares":2867},"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401075,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":false,"shares":2471,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The shares underlying this option vested as to 25% on September 8, 2022, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date."}],"balance_after":2460,"derivative":{"exercise_price":2.28,"expiration_date":"2031-09-07","underlying":"Common Stock","underlying_shares":2471},"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401074,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":true,"shares":12364,"price":3.65,"value":45128.6,"ownership":{"direct":true},"balance_after":124583,"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401073,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":true,"shares":2471,"price":2.28,"value":5633.88,"ownership":{"direct":true},"balance_after":112219,"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401072,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":true,"shares":7164,"price":2.28,"value":16333.92,"ownership":{"direct":true},"balance_after":109748,"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401071,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":true,"shares":2867,"price":2.28,"value":6536.76,"ownership":{"direct":true},"balance_after":102584,"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}},{"id":1401070,"issuer":{"id":4699,"kind":"organization","name":"ArriVent BioPharma, Inc."},"owners":[{"id":67769,"kind":"person","name":"LaChapelle Robin","position":1,"cik":"0002009136","reported_name":"LaChapelle Robin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2024-09-23T18:14:19.000Z","date":"2024-09-19","kind":"exercise","planned":false,"acquired":true,"shares":2700,"price":6.24,"value":16848.0,"ownership":{"direct":true},"balance_after":99717,"source":{"system":"sec-edgar","filing":"0001104659-24-102146","document":"tm2424588-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2009136/000110465924102146/tm2424588-1_4seq1.xml","form_type":"4"}}]}