Skip to content

DYN DYNE THERAPEUTICS INC

Follow

Stock (common), issuer CIK 1818794

205 managers (207 13F filers) reported a position in DYN shares at 2025-09-30, 155,835,362 shares in all. 35 filers opened a position and 27 filers sold out during the quarter.

Managers
205
13F filers
207
New
35
Added
112
Reduced
38
Sold out
27
Shares held by filers
155,835,362

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

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Posner Brian Sdirector2026-10-02+2,500 P$16Form 4

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.

HolderSharesValue% of portfolioChangeSource
Parallel Advisors, LLC27$342<0.01%-3513F-HRTimeline
Larson Financial Group LLC19$240<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC15$190<0.01%new13F-HRTimeline
Advisory Services Network, LLC14$177<0.01%new13F-HRTimeline
True Wealth Design, LLC13$165<0.01%new13F-HRTimeline

Events

  • Posner Brian S bought 2,500 DYN shares on 2026-10-02, Form 4 filed 2026-10-06. 0001193125-26-415584

    Accepted , ingested