Briggs Morrison

Insider Reports History

Location
Waltham, MA
Signature
/s/ Christina Bailey, as attorney-in-fact for Briggs Morrison
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Briggs Morrison:

Company Role Class Num Shares Value Price $ Report Date Ownership
Syndax Pharmaceuticals Inc Director Common Stock 34,836 $636,283 $18.27 07 Feb 2024 Direct
ARVINAS, INC. Director Common Stock 76,021 $575,250 $7.57 22 Sep 2025 Direct
CRISPR Therapeutics AG Director Common Shares 5,209 $195,806 $37.59 05 Jun 2025 Direct
ARVINAS, INC. Director Stock Option (right to buy) 23,105 $145,120 $16.00 25 Jun 2025 Direct
Repare Therapeutics Inc. Director Stock Option (right to buy) 27,200 17 Jun 2024 Direct
Werewolf Therapeutics, Inc. Director Stock Option (right to buy) 27,000 12 Jun 2025 Direct
Carisma Therapeutics Inc. Director Stock Option (Right to Buy) 19,350 26 Jun 2024 Direct
CRISPR Therapeutics AG Director Stock Option (Right to Buy) 13,000 05 Jun 2025 Direct
Syndax Pharmaceuticals Inc Director Stock Options (Right to buy) 0 $25.84 09 Aug 2023 Direct

Insider Reports Filed by Briggs Morrison

Symbol Company Period Transactions Value $ Form Type Role Filing Time
ARVN ARVINAS, INC. 22 Sep 2025 1 +$227,010 4 Director 24 Sep 2025, 09:16
ARVN ARVINAS, INC. 25 Jun 2025 2 $0 4 Director 27 Jun 2025, 21:14
HOWL Werewolf Therapeutics, Inc. 12 Jun 2025 1 $0 4 Director 13 Jun 2025, 16:10
CRSP CRISPR Therapeutics AG 05 Jun 2025 0 $0 3/A Director 10 Jun 2025, 17:31
CRSP CRISPR Therapeutics AG 05 Jun 2025 1 $0 4 Director 06 Jun 2025, 17:30
CARM Carisma Therapeutics Inc. 26 Jun 2024 1 $0 4 Director 27 Jun 2024, 16:54
RPTX Repare Therapeutics Inc. 17 Jun 2024 1 $0 4 Director 20 Jun 2024, 16:35
ARVN ARVINAS, INC. 29 May 2024 2 $0 4 Director 31 May 2024, 17:51
HOWL Werewolf Therapeutics, Inc. 24 May 2024 1 $0 4 Director 24 May 2024, 19:49
SNDX Syndax Pharmaceuticals Inc 07 Feb 2024 1 $0 4 Director 09 Feb 2024, 16:04
SNDX Syndax Pharmaceuticals Inc 09 Aug 2023 3 -$501,864 4 Director 10 Aug 2023, 06:50
SNDX Syndax Pharmaceuticals Inc 10 Jul 2023 3 -$614,529 4 Director 11 Jul 2023, 09:23
HOWL Werewolf Therapeutics, Inc. 21 Jun 2023 1 $0 4 Director 23 Jun 2023, 17:07
ARVN ARVINAS, INC. 15 Jun 2023 2 $0 4 Director 20 Jun 2023, 17:27
SNDX Syndax Pharmaceuticals Inc 09 Jun 2023 6 -$714,634 4 Director 09 Jun 2023, 17:32
RPTX Repare Therapeutics Inc. 08 Jun 2023 1 $0 4 Director 12 Jun 2023, 16:27
CARM Carisma Therapeutics Inc. 06 Jun 2023 1 $0 4 Director 08 Jun 2023, 18:11
SNDX Syndax Pharmaceuticals Inc 09 May 2023 3 -$794,263 4 Director 10 May 2023, 16:11
SNDX Syndax Pharmaceuticals Inc 10 Apr 2023 3 -$695,022 4 Director 12 Apr 2023, 16:03
SNDX Syndax Pharmaceuticals Inc 13 Mar 2023 3 -$853,465 4 President, Head of R&D, Director 14 Mar 2023, 16:42
CARM Carisma Therapeutics Inc. 07 Mar 2023 3 $0 4 Director 09 Mar 2023, 20:21
CARM Carisma Therapeutics Inc. 07 Mar 2023 0 $0 3 Director 09 Mar 2023, 20:04
SNDX Syndax Pharmaceuticals Inc 06 Feb 2023 3 -$1,080,700 4 President, Head of R&D, Director 08 Feb 2023, 15:49
SNDX Syndax Pharmaceuticals Inc 02 Feb 2023 1 +$913,600 4 President, Head of R&D, Director 03 Feb 2023, 16:02
SNDX Syndax Pharmaceuticals Inc 19 Sep 2022 6 -$2,123,587 4 President, Head of R&D, Director 21 Sep 2022, 16:18
SNDX Syndax Pharmaceuticals Inc 14 Sep 2022 12 -$4,396,277 4 President, Head of R&D, Director 16 Sep 2022, 17:34
SNDX Syndax Pharmaceuticals Inc 01 Jul 2022 3 -$734,927 4 President, Head of R&D, Director 05 Jul 2022, 16:09
ARVN ARVINAS, INC. 16 Jun 2022 1 $0 4 Director 21 Jun 2022, 20:00
HOWL Werewolf Therapeutics, Inc. 01 Jun 2022 1 $0 4 Director 03 Jun 2022, 16:41
RPTX Repare Therapeutics Inc. 13 May 2022 1 $0 4 Director 16 May 2022, 19:25
ARVN ARVINAS, INC. 14 Apr 2022 5 -$1,133,608 4 Director 18 Apr 2022, 21:00
SNDX Syndax Pharmaceuticals Inc 01 Apr 2022 4 +$530,446 4/A President, Head of R&D, Director 13 Apr 2022, 16:09
SNDX Syndax Pharmaceuticals Inc 02 Feb 2022 1 +$2,526,400 4 President, Head of R&D, Director 03 Feb 2022, 16:32
ARVN ARVINAS, INC. 14 Jan 2022 6 -$1,115,013 4 Director 19 Jan 2022, 20:00
SNDX Syndax Pharmaceuticals Inc 17 Dec 2021 3 -$319,920 4 Chief Executive Officer, Director 20 Dec 2021, 17:44
SNDX Syndax Pharmaceuticals Inc 17 Sep 2021 6 -$904,771 4 Chief Executive Officer, Director 21 Sep 2021, 16:35
ARVN ARVINAS, INC. 08 Jun 2021 1 $0 4 Director 10 Jun 2021, 20:00
RPTX Repare Therapeutics Inc. 13 May 2021 1 $0 4 Director 14 May 2021, 16:53