Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
Atlas Venture Fund XI, L.P. - 30 Sep 2025 SCHEDULE 13G/A Report for DYNE THERAPEUTICS, INC. COMMON STOCK, $0.0001 PAR VALUE (DYN)
- Filing manager
- Atlas Venture Fund XI, L.P.
- Reporting owner
- Atlas Venture Associates XI, L.P.
- Beneficially owned shares
- 5,713,470 shares
- Class ownership
- 4%
- Large-stake signal
-
Ownership
4%Beneficial ownership of this reported class.
Shares
5,713,470 sharesShares beneficially owned as disclosed.
Event date
30 Sep 2025Date tied to the ownership event or amendment.
Accepted by SEC
13 Nov 2025EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Symbol
- DYN
- Shares outstanding
- 142,836,750 shares
- Form type
- SCHEDULE 13G/A
- Accepted by SEC
- 13 Nov 2025, 16:23:17 UTC
- Event date
- 30 Sep 2025
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
2 source fields
Source evidence
4 source fields
Key filing fact
Atlas Venture Fund XI, L.P. disclosed 4% ownership in DYNE THERAPEUTICS, INC. COMMON STOCK, $0.0001 PAR VALUE (DYN) on 30 Sep 2025.
Key facts
- Atlas Venture Fund XI, L.P. filed SCHEDULE 13G/A for DYNE THERAPEUTICS, INC. COMMON STOCK, $0.0001 PAR VALUE (DYN).
- Disclosed ownership: 4%.
- Date of event: 30 Sep 2025.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 13 Nov 2025, 16:23.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (9)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Atlas Venture Fund XI, L.P. | 4% | 5,697,508 | 0 | 5,697,508 | /s/ Ommer Chohan | By: Atlas Venture Associates XI, L.P., its general partner, By: Atlas Venture Associates XI, LLC, its general partner, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates XI, L.P. | 4% | 5,713,470 | 0 | 5,713,470 | /s/ Ommer Chohan | By: Atlas Venture Associates XI, LLC, its general partner, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates XI, LLC | 4% | 5,713,470 | 0 | 5,713,470 | /s/ Ommer Chohan | Ommer Chohan, its CFO | |
| Atlas Venture Opportunity Fund I, L.P. | 1% | 1,458,568 | 0 | 1,458,568 | /s/ Ommer Chohan | By: Atlas Venture Associates Opportunity I L.P., its GP, By: Atlas Venture Associates Opportunity I LLC, its GP, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates Opportunity I, L.P. | 1% | 1,458,568 | 0 | 1,458,568 | /s/ Ommer Chohan | By: Atlas Venture Associates Opportunity I LLC, its GP, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates Opportunity I, LLC | 1% | 1,458,568 | 0 | 1,458,568 | /s/ Ommer Chohan | Ommer Chohan, its CFO | |
| Atlas Venture Opportunity Fund II, L.P. | 1.4% | 1,958,427 | 0 | 1,958,427 | /s/ Ommer Chohan | By: Atlas Venture Associates Opportunity II L.P., its GP, By: Atlas Venture Associates Opportunity II LLC, its GP, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates Opportunity II, LP | 1.4% | 1,958,427 | 0 | 1,958,427 | /s/ Ommer Chohan | By: Atlas Venture Associates Opportunity II LLC, its GP, By: Ommer Chohan, its CFO | |
| Atlas Venture Associates Opportunity II, LLC | 1.4% | 1,958,427 | 0 | 1,958,427 | /s/ Ommer Chohan | Ommer Chohan, its CFO |
CIK / CUSIP context first