| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Scientific Officer | Chief Scientific Officer
1 company
Matthew Stanton last filed a Form 4 in October 2024, as Chief Scientific Officer at GBIO. Matthew Stanton's net worth is not public. Form 4 filings only show shares in the companies where this person was an insider, as of the last filing.
Our model assigns Matthew Stanton a strong insider score of 91/100, based on 15 past trades. Over a 12-month horizon, all 15 of those trades were profitable, with an average 12-month return of +77.2%.
At the last filing, the largest reported position was 247,319 shares of GBIO. The GBIO filings lean toward selling, a net 93,890 shares.
Matthew Stanton has 32 Form 4 filings on record from December 2020 to October 2024, all as Chief Scientific Officer at Generation Bio (GBIO), 2020–2024.
The 84 reported transactions were 34 open-market sales, 31 option exercises, 11 tax withholdings and 8 option or other derivative awards.
Counted by filing, the open-market trades come to no purchases and 17 sales worth about $2.9M.
The largest open-market sale was 14,820 shares of GBIO at an average $27.69 on January 11, 2021, about $410K.
Shares as reported in the last Form 4 for each company; the most recent is from October 2024. Values use today's prices. Any trades after the last filing were not reported, so current holdings may differ.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 14, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 4,500 | $28.07 | $126,315.00 | -2.2% | -46.2% | -79.5% | |
| Sep 10, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 3,000 | $25.97 | $77,910.00 | -1.5% | -47.0% | -79.6% | |
| Aug 23, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 1,500 | $25.04 | $37,560.00 | -0.8% | -25.5% | -77.8% | |
| Aug 10, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 1,500 | $22.63 | $33,943.00 | -0.8% | -7.0% | -64.2% | |
| Jul 12, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 3,000 | $25.03 | $75,087.00 | -1.5% | -7.0% | -70.7% | |
| Jun 15, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 1,500 | $28.08 | $42,120.00 | -0.8% | +1.5% | -78.2% | |
| Jun 10, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 6,000 | $27.23 | $163,380.00 | -2.9% | -7.1% | -79.2% | |
| May 27, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 1,500 | $34.05 | $51,075.00 | -0.8% | -31.7% | -84.4% | |
| May 11, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 9,000 | $30.61 | $275,534.00 | -4.3% | -22.3% | -81.8% | |
| Apr 22, 2021 | GBIO Generation Bio Co. | Chief Scientific Officer | Sale+OE | 3,000 | $32.55 | $97,650.00 | -1.5% | -36.2% | -80.5% |