| 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 Operating Officer
1 company
Antoinette Paone last filed a Form 4 in October 2025, as Chief Operating Officer at GBIO. Antoinette Paone'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.
Historically, Antoinette Paone's trades have earned a strong insider score of 80/100 across 9 rated trades. Over a 12-month horizon, all 9 of those trades were profitable, with an average 12-month return of +51.9%.
Antoinette Paone has 27 Form 4 filings on record from February 2022 to October 2025, all as Chief Operating Officer at Generation Bio (GBIO), 2022–2025.
The 45 reported transactions were 15 option exercises, 15 tax withholdings, 9 open-market sales and 6 option or other derivative awards.
Counted by filing, the open-market trades come to no purchases and 9 sales worth about $129K.
The largest open-market sale was 4,610 shares of GBIO at an average $5.32 on September 15, 2022, about $25K. Twelve months later GBIO was down 25%.
3 of the 4 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other was not.
Shares as reported in the last Form 4 for each company; the most recent is from October 2025. 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2024 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 6,719 | $2.74 | $18,410.06 | -32.7% | -3.9% | -87.5% | |
| Jan 2, 2024 | GBIO Generation Bio Co. | Chief Operating Officer | Sell10b5-1 | 2,445 | $1.62 | $3,960.90 | -29.6% | +130.6% | -40.3% | |
| Aug 23, 2023 | GBIO Generation Bio Co. | Chief Operating Officer | Sell10b5-1 | 3,116 | $4.93 | $15,361.88 | -51.7% | -77.1% | -49.8% | |
| Apr 25, 2023 | GBIO Generation Bio Co. | Chief Operating Officer | Sell10b5-1 | 2,914 | $4.61 | $13,433.54 | -100% | +14.1% | -35.1% | |
| Jan 26, 2023 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 2,695 | $5.56 | $14,984.20 | -100% | -19.2% | -68.7% | |
| Jan 10, 2023 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 1,865 | $4.57 | $8,523.05 | -100% | -9.9% | -53.5% | |
| Oct 27, 2022 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 2,914 | $5.03 | $14,657.42 | -100% | +13.5% | -81.5% | |
| Sep 29, 2022 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 2,828 | $5.24 | $14,818.72 | -100% | -28.1% | -25.5% | |
| Sep 15, 2022 | GBIO Generation Bio Co. | Chief Operating Officer | Sell | 4,610 | $5.32 | $24,525.20 | -62.0% | -11.6% | -24.8% |