Baker Bros. Advisors LP
- SEC CIK
- 0001263508
- Latest filing
- Aug 14, 2026
GBIO holding history
Generation Bio Co. in every 13F filed by Baker Bros. Advisors LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
GBIO overviewAll 13F holders of GBIOFull Q2 2026 holdings
- Shares (Q4 2025)
- 0
- Sold out in Q4 2025
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 7
- Since Q1 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q4 2025 | 0 | $0 | 0.0% | −194,493−100.0% | Sold out | Holders |
| Q3 2025 | 194,493 | $1.19M | <0.1% | 00.0% | UnchangedConverted for a 1-for-10 split | Holders |
| Q2 2025 | 1,944,945 | $622.6K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2025 | 1,944,945 | $787.7K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2024 | 1,944,945 | $2.06M | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2024 | 1,944,945 | $4.80M | <0.1% | +737,988+61.1% | Added | Holders |
| Q2 2024 | 1,206,957 | $3.40M | <0.1% | +835,738+225.1% | Added | Holders |
| Q1 2024 | 371,219 | $1.51M | <0.1% | +371,219 | New | Holders |