Atlas Venture Fund X, L.P. (CIK 1628098) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-09). Recent activity: Sell GBIO (711,193 shares), Sell GBIO (116,693 shares), Sell GBIO (60 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-09 | Generation Bio Co. (GBIO) | Insider | Sell | 711,193 | $0 |
| 2026-02-09 | Generation Bio Co. (GBIO) | Insider | Sell | 116,693 | $0 |
| 2026-02-09 | Generation Bio Co. (GBIO) | Insider | Sell | 60 | $0 |
Source: SEC Form 4 filings · as of 2026-02-09