William C Bertrand JR insider trades: Adaptimmune Therapeutics (ADAP) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
19 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 28, 2025 | ADAP | ↓ Sell | 207,000 | $0.01 | $2K | Direct | Aug 29, 2025 (1d) |
| Jan 17, 2025 | ADAP | ↓ Sell | 5,584 | $0.58 | $3K | Direct | Jan 17, 2025 (0d) |
| Jan 15, 2025 | ADAP | ↓ Sell | 19,542 | $0.58 | $11K | Direct | Jan 15, 2025 (0d) |
| Jan 17, 2024 | ADAP | ↓ Sell | 23,589 | $0.70 | $16K | Direct | Jan 17, 2024 (0d) |
| Jan 12, 2024 | ADAP | ↓ Sell | 9,229 | $0.85 | $8K | Direct | Jan 12, 2024 (0d) |
| Jan 17, 2023 | ADAP | ↓ Sell | 4,440 | $1.86 | $8K | Direct | Jan 17, 2023 (0d) |
| Jan 12, 2023 | ADAP | ↓ Sell | 8,816 | $1.72 | $15K | Direct | Jan 12, 2023 (0d) |
| Jan 4, 2023 | ADAP | ↓ Sell | 3,584 | $1.69 | $6K | Direct | Jan 4, 2023 (0d) |
| Jan 18, 2022 | ADAP | ↓ Sell | 4,368 | $3.19 | $14K | Direct | Jan 18, 2022 (0d) |
| Jan 12, 2022 | ADAP | ↓ Sell | 6,018 | $3.55 | $21K | Direct | Jan 13, 2022 (1d) |
| Jan 4, 2022 | ADAP | ↓ Sell | 3,490 | $4.06 | $14K | Direct | Jan 5, 2022 (1d) |
| Jul 2, 2021 | ADAP | ↓ Sell | 4,375 | $4.26 | $19K | Direct | Jul 2, 2021 (0d) |
| Jan 12, 2021 | ADAP | ↓ Sell | 2,234 | $6.15 | $14K | Direct | Jan 12, 2021 (0d) |
| Jan 4, 2021 | ADAP | ↓ Sell | 3,499 | $5.33 | $19K | Direct | Jan 5, 2021 (1d) |
| Dec 14, 2020 | ADAP | ↑ Buy | 207,000 | $0.69 | $144K | Direct | Dec 15, 2020 (1d) |
| Jan 14, 2020 | ADAP | ↓ Sell | 2,397 | $5.13 | $12K | Direct | Jan 15, 2020 (1d) |
| Jan 6, 2020 | ADAP | ↓ Sell | 3,731 | $1.20 | $4K | Direct | Jan 7, 2020 (1d) |
| Jan 14, 2019 | ADAP | ↓ Sell | 2,271 | $5.37 | $12K | Direct | Jan 16, 2019 (2d) |
| Dec 17, 2015 | ARDX | ↑ Buy | 5,000 | $20.00 | $100K | Direct | Dec 21, 2015 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About William C Bertrand JR's insider trades
William C Bertrand JR is Chief Operating Officer at Adaptimmune Therapeutics (ADAP). Since Dec 17, 2015, William has reported 2 open-market purchases worth $244K and 17 sales worth $200K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (27 filings), other transactions (2 filings), shares returned to the company (2 filings). These aren't open-market trades and aren't counted above.
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 ADAP insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.