Joshua T. Brumm

Insider Reports History

Location
Pleasanton, CA
Signature
/s/ Barbara Bispham, as attorney-in-fact for Joshua T. Brumm
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 Joshua T. Brumm:

Company Role Class Num Shares Value Price $ Report Date Ownership
Dyne Therapeutics, Inc. CEO & President, Director Common Stock 537,998 $13,950,288 $25.93 11 Mar 2024 Direct
CRESCENT BIOPHARMA, INC. Chief Executive Officer, Director Ordinary Shares 323,517 $4,878,636 $15.08 15 Dec 2025 Direct
CRESCENT BIOPHARMA, INC. Chief Executive Officer, Director Stock Option (Right to Buy) 180,467 15 Dec 2025 Direct
Dyne Therapeutics, Inc. CEO & President, Director Stock option (right to buy) 83,269 11 Mar 2024 Direct

Insider Reports Filed by Joshua T. Brumm

Symbol Company Period Transactions Value $ Form Type Role Filing Time
GLYC CRESCENT BIOPHARMA, INC. 15 Dec 2025 3 $0 4 Chief Executive Officer, Director 17 Dec 2025, 16:46
GLYC CRESCENT BIOPHARMA, INC. 08 Dec 2025 1 $0 4 Chief Executive Officer, Director 10 Dec 2025, 16:35
GLYC GLYCOMIMETICS INC 13 Jun 2025 0 $0 3 Chief Executive Officer, Director 23 Jun 2025, 18:26
DYN Dyne Therapeutics, Inc. 08 Mar 2024 13 -$8,835,856 4 CEO & President, Director 12 Mar 2024, 21:56
DYN Dyne Therapeutics, Inc. 07 Mar 2024 1 -$234,873 4 CEO & President, Director 11 Mar 2024, 21:57
DYN Dyne Therapeutics, Inc. 29 Feb 2024 9 -$2,341,518 4 CEO & President, Director 01 Mar 2024, 21:38
DYN Dyne Therapeutics, Inc. 29 Jan 2024 2 $0 4 CEO & President, Director 31 Jan 2024, 16:18
DYN Dyne Therapeutics, Inc. 03 Jan 2024 11 -$3,853,105 4 CEO & President 04 Jan 2024, 21:49
DYN Dyne Therapeutics, Inc. 11 Dec 2023 1 -$81,311 4 Chief Executive Officer and President, Director 12 Dec 2023, 17:33
DYN Dyne Therapeutics, Inc. 15 Nov 2023 2 $0 4 Chief Executive Officer and President, Director 16 Nov 2023, 16:29
DYN Dyne Therapeutics, Inc. 18 Sep 2023 1 -$113,221 4 Chief Executive Officer and President, Director 20 Sep 2023, 17:47
DYN Dyne Therapeutics, Inc. 12 Sep 2023 1 -$79,866 4 Chief Executive Officer and President, Director 13 Sep 2023, 20:50
DYN Dyne Therapeutics, Inc. 08 Jun 2023 12 -$3,909,426 4 Chief Executive Officer and President, Director 12 Jun 2023, 21:22
DYN Dyne Therapeutics, Inc. 14 Mar 2023 1 -$97,549 4 Chief Executive Officer and President, Director 15 Mar 2023, 17:49
DYN Dyne Therapeutics, Inc. 09 Dec 2022 3 -$36,110 4 Chief Executive Officer and President, Director 13 Dec 2022, 16:04
DYN Dyne Therapeutics, Inc. 07 Oct 2022 8 -$2,413,222 4 Chief Executive Officer and President, Director 11 Oct 2022, 09:00
DYN Dyne Therapeutics, Inc. 20 Sep 2022 1 -$162,153 4 Chief Executive Officer and President, Director 21 Sep 2022, 16:07
DYN Dyne Therapeutics, Inc. 15 Sep 2022 1 -$48,894 4 Chief Executive Officer and President, Director 15 Sep 2022, 17:25
DYN Dyne Therapeutics, Inc. 05 Jul 2022 4 -$90,335 4 Chief Executive Officer and President, Director 06 Jul 2022, 18:18
DYN Dyne Therapeutics, Inc. 14 Jun 2022 1 -$17,523 4 Chief Executive Officer and President, Director 15 Jun 2022, 20:02
DYN Dyne Therapeutics, Inc. 11 Mar 2022 1 -$29,542 4 Chief Executive Officer and President, Director 14 Mar 2022, 17:07
DYN Dyne Therapeutics, Inc. 10 Dec 2021 2 $0 4 Chief Executive Officer and President, Director 14 Dec 2021, 15:20
DYN Dyne Therapeutics, Inc. 01 Oct 2021 1 $0 4 Chief Executive Officer and President, Director 04 Oct 2021, 17:03
DYN Dyne Therapeutics, Inc. 20 Sep 2021 2 -$127,312 4 Chief Executive Officer and President, Director 22 Sep 2021, 20:02