47 institutions reported holding $53,260 of GENERATION BIO CO (GBIO) in SEC 13F filings for 2026-03-31. Largest institutional holders: Accent Capital Management, LLC ($53,260), CWM, LLC ($0), FMR LLC ($0), TD Asset Management Inc ($0), CSS LLC/IL ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Accent Capital Management, LLC | $53,260 | 61 | Added |
| 2 | CWM, LLC | $0 | 0 | Exited |
| 3 | FMR LLC | $0 | 0 | Exited |
| 4 | TD Asset Management Inc | $0 | 0 | Exited |
| 5 | CSS LLC/IL | $0 | 0 | Exited |
| 6 | BNP PARIBAS FINANCIAL MARKETS | $0 | 0 | Exited |
| 7 | TWO SIGMA INVESTMENTS, LP | $0 | 0 | Exited |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 9 | DELTEC ASSET MANAGEMENT LLC | $0 | 0 | Exited |
| 10 | MILLENNIUM MANAGEMENT LLC | $0 | 0 | Exited |
| 11 | Palo Alto Investors LP | $0 | 0 | Exited |
| 12 | MARSHALL WACE, LLP | $0 | 0 | Exited |
| 13 | Sterling Capital Management LLC | $0 | 0 | Exited |
| 14 | RENAISSANCE TECHNOLOGIES LLC | $0 | 0 | Exited |
| 15 | Yiheng Capital Management, L.P. | $0 | 0 | Exited |
| 16 | DRW Securities, LLC | $0 | 0 | Exited |
| 17 | Rangeley Capital, LLC | $0 | 0 | Exited |
| 18 | Royal Bank of Canada | $0 | 0 | Exited |
| 19 | Opaleye Management Inc. | $0 | 0 | Exited |
| 20 | UBS Group AG | $0 | 0 | Exited |
| 21 | Shay Capital LLC | $0 | 0 | Exited |
| 22 | Rockefeller Capital Management L.P. | $0 | 0 | Exited |
| 23 | XTX Topco Ltd | $0 | 0 | Exited |
| 24 | SBI Securities Co., Ltd. | $0 | 0 | Exited |
| 25 | Optiver Holding B.V. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31