Matthew Stanton, CHIEF SCIENTIFIC OFFICER at Generation Bio Co. (GBIO), sold 9,000 shares at $30.37 ($276K) on 2021-05-10, disclosed to the SEC on 2021-05-12.
Open-market sale of $276k GBIO by CHIEF SCIENTIFIC OFFICER. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $30.37 | 6,200 | $188K | 68.3% |
| 2 | $31.03 | 2,100 | $65K | 23.6% |
| 3 | $32.19 | 300 | $10K | 3.5% |
| 4 | $31.05 | 400 | $12K | 4.5% |
| Total | $30.61 avg | 9,000 | $276K | 100% |
| Filing → |
| GBIO | SELL | 2021-08-25 | $38K | — | Filing → |
| GBIO | SELL | 2021-08-11 | $34K | — | Filing → |
| GBIO | SELL | 2021-07-14 | $75K | — | Filing → |