Mary Beth Dooley insider trades: Synlogic (SYBX) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mary reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 29, 2025 | SYBX | ↓ Sell | 157 | $1.81 | $284 | Direct | Oct 31, 2025 (2d) |
| Apr 2, 2025 | SYBX | ↓ Sell | 144 | $1.20 | $173 | Direct | Apr 3, 2025 (1d) |
| Feb 3, 2025 | SYBX | ↓ Sell | 2,107 | $1.33 | $3K | Direct | Feb 4, 2025 (1d) |
| Oct 29, 2024 | SYBX | ↓ Sell | 79 | $1.40 | $111 | Direct | Oct 30, 2024 (1d) |
| Apr 2, 2024 | SYBX | ↓ Sell | 188 | $1.73 | $325 | Direct | Apr 4, 2024 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Mary Beth Dooley's insider trades
Mary Beth Dooley is See Remarks below at Synlogic (SYBX). Since Apr 2, 2024, Mary has reported no open-market purchases and 5 sales worth $4K on SEC Form 4. There have been no open-market trades in the last 12 months.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SYBX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.