Dyne Therapeutics Inc. (DYN) - Insider Holders & Insider Ownership

List of insiders holdings for Dyne Therapeutics Inc.:

Shares directly owned by the insider.
Shares indirectly owned by the insider.
Total shares owned by the insider (sum of shares directly and indirectly owned).
Total market value if available.
Shares are not adjusted for stock split.

"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#	Insider Holder Name	Report Date Time	Shares Owned Directly Indirectly	Total Shares Owned	Filing
1	Atlas Venture Fund XI L.P. Atlas Venture Associates XI L.P. Atlas Venture Associates XI LLC Atlas Venture Opportunity Fund I L.P. Atlas Venture Associates Opportunity I L.P. Atlas Venture Associates Opportunity I LLC Atlas Venture Opportunity Fund II L.P. Atlas Venture Associates Opportunity II LP Atlas Venture Associates Opportunity II LLC 10% Owner	2025-11-13 16:23:17	5,713,470 0	5,713,470	Form 13G
2	Forbion Capital Fund IV Cooperatief U.A. 10% Owner	2025-05-15 08:46:56	5,400,545 0	5,400,545	Form 13G
3	Kersten Dirk Director	2026-04-23 16:15:03	0 4,196,573	4,196,573	Form 4
4	MPM BIOVENTURES 2018 L.P. MPM BIOVENTURES 2018 (B) L.P. MPM ASSET MANAGEMENT INVESTORS BV2018 LLC MPM BioVentures 2018 GP LLC MPM BioVentures 2018 LLC EVNIN LUKE Foley Todd GADICKE ANSBERT 10% Owner	2024-02-12 16:06:32	3,451,303 0	3,451,303	Form 13G
5	Atlas Venture Opportunity Fund I L.P. Atlas Venture Associates Opportunity I L.P. Atlas Venture Associates Opportunity I LLC Atlas Venture Opportunity Fund II L.P. Atlas Venture Associates Opportunity II LP Atlas Venture Associates Opportunity II LLC 10% Owner	2024-03-05 17:07:00	1,458,691 847,388	2,306,079	Form 4
6	VV Manager II LLC Vida Ventures II LLC VIDA VENTURES II-A LLC 10% Owner	2023-02-10 16:31:31	2,220,034 0	2,220,034	Form 13D
7	Logos Global Management LP 10% Owner	2023-02-14 15:53:47	2,150,000 0	2,150,000	Form 13G
8	Wellington Biomedical Innovation Master Investors (Cayman) I L.P. 10% Owner	2020-09-23 18:56:45	1,608,785 0	1,608,785	Form 4
9	Rhodes Jason P Director	2026-04-22 18:27:22	0 1,285,704	1,285,704	Form 4
10	Brumm Joshua T CEO & President	2024-03-12 21:56:20	754,536 0	754,536	Form 4
11	Subramanian Romesh Chief Scientific Officer 10% Owner	2020-09-18 17:12:38	694,434 0	694,434	Form 4
12	CureDuchenne Ventures LLC 10% Owner	2020-09-23 19:05:52	602,972 0	602,972	Form 4
13	Cox John CEO & President	2026-03-06 16:08:22	374,145 72,000	446,145	Form 4
14	Beskrovnaya Oxana Chief Scientific Officer	2025-03-13 16:08:14	195,840 0	195,840	Form 4
15	Kerr Douglas Chief Medical Officer	2026-03-06 16:09:00	171,606 0	171,606	Form 4
16	Friedl-Naderer Johanna Chief Commercial Officer	2026-03-06 16:10:20	154,581 0	154,581	Form 4
17	Farwell Wildon Chief Medical Officer	2024-08-20 16:27:16	143,222 0	143,222	Form 4
18	McNeill Jonathan Chief Business Officer	2024-08-20 16:27:39	132,106 0	132,106	Form 4
19	HIGH SUSANNA GATTI Chief Operating Officer	2024-09-19 16:52:28	131,636 0	131,636	Form 4
20	Lucera Erick Chief Financial Officer	2026-04-03 16:10:06	125,373 0	125,373	Form 4
21	Scalzo Richard William SVP, Head of Finance & Admin.	2025-03-13 16:08:57	122,330 0	122,330	Form 4
22	Karnani Vikram Director	2025-12-23 16:08:03	59,665 0	59,665	Form 4
23	Incerti Carlo Director	2025-06-03 21:38:05	35,000 0	35,000	Form 4
24	HURWITZ EDWARD Director	2025-06-03 21:41:10	35,000 0	35,000	Form 4
25	Lubner David Charles Director	2025-06-03 21:40:35	35,000 0	35,000	Form 4
26	Stehman-Breen Catherine Director	2025-06-03 21:37:20	35,000 0	35,000	Form 4
27	Posner Brian S Director	2026-04-01 16:27:51	15,500 0	15,500	Form 4
28	Klein Lawrence Otto Director	2022-07-06 18:20:16	7,222 0	7,222	Form 4
29	RA CAPITAL MANAGEMENT L.P. Kolchinsky Peter Shah Rajeev M. 10% Owner	2025-11-14 16:14:45	0 0	0	Form 13G