DYN DYNE THERAPEUTICS INC
FollowStock (common), issuer CIK 1818794
204 managers (206 13F filers) reported a position in DYN shares at 2025-03-31, 122,010,700 shares in all. 47 filers opened a position and 43 filers sold out during the quarter.
- Managers
- 204
- 13F filers
- 206
- New
- 47
- Added
- 81
- Reduced
- 44
- Sold out
- 43
- Shares held by filers
- 122,010,700
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
| Owner | Date | Shares | Price | Filing |
|---|---|---|---|---|
| Posner Brian Sdirector | 2026-10-02 | +2,500 P | $16 | Form 4 |
13F holders, Q1 2025
Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| Federation des caisses Desjardins du Qu… | 20 | $209 | <0.01% | 0 | 13F-HRTimeline |
| Amundiin group Amundi | 21 | $198 | <0.01% | 0 | 13F-HRTimelineGroup |
| NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/ | 1 | $10 | <0.01% | new | 13F-HRTimelineGroup |
| CONCOURSE FINANCIAL GROUP SECURITIES, I… | 0 | $0 | 0 | 13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios. |
Events
Posner Brian S bought 2,500 DYN shares on 2026-10-02, Form 4 filed 2026-10-06. 0001193125-26-415584
Accepted , ingested