13F-HR filed by Atlas Venture Life Science Advisors, LLC
Atlas Venture Life Science Advisors, LLC filed this 13F-HR for the quarter ended 2025-12-31, filed 2026-02-13, with 8 holding rows worth $865,154,717.
- Accession
- 0001104659-26-014463
- Filer
- CIK 1917529
- Filed
- 2026-02-13
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q4 2025
A holdings report, 8 entries on the cover page, a total value of $865,154,717 stated on the cover page (in dollars after the unit check, H1), rows summing to $865,154,717 with VALUE read as dollars as filed, 13F file number 028-22531. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| KYMERA THERAPEUTICS INC | 501575104 | COM | 4,659,874 | $362,584,796 | dollars as filed | |
| DYNE THERAPEUTICS INC COM | 26818M108 | Stock | 9,130,465 | $178,591,895 | dollars as filed | |
| SIONNA THERAPEUTICS INC | 829401108 | COMMON STOCK | 2,995,602 | $123,239,066 | dollars as filed | |
| DISC MEDICINE INC COM | 254604101 | Stock | 1,513,875 | $120,216,814 | dollars as filed | |
| Day One Biopharmaceuticals Inc | 23954D109 | Common Stock | 6,412,560 | $59,765,059 | dollars as filed | |
| KORRO BIO INC | 500946108 | COMMON STOCK | 1,137,149 | $9,108,563 | dollars as filed | |
| Q32 BIO INC | 746964105 | Common Stock | 2,092,106 | $6,945,792 | dollars as filed | |
| GENERATION BIO CO | 37148K209 | COM NEW | 827,946 | $4,702,732 | dollars as filed |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001104659-26-014463 | this filing | 2026-02-13 | acceptance time not in the bulk data set |