Michelle Renee Griffin insider trades: Adaptive Biotechnologies (ADPT) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michelle reports to the SEC
and 4 more companies
Open-market buys and sales
18 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 25, 2026 | ADPT | ↓ Sell | 52,084 | $20.18 | $1.1M | Direct | Jun 29, 2026 (4d) |
| Mar 11, 2026 | ADPT | ↓ Sell | 15,394 | $13.91 | $214K | Direct | Mar 13, 2026 (2d) |
| Mar 3, 2026 | ADPT | ↓ Sell | 48,044 | $15.30 | $735K | Direct | Mar 5, 2026 (2d) |
| Mar 13, 2025 | ADPT | ↓ Sell | 36,291 | $7.19 | $261K | Direct | Mar 17, 2025 (4d) |
| Mar 6, 2025 | ADPT | ↓ Sell | 15,664 | $7.94 | $124K | Direct | Mar 6, 2025 (0d) |
| Mar 27, 2023 | ADPT | ↓ Sell | 2,341 | $8.49 | $20K | Direct | Mar 29, 2023 (2d) |
| Aug 27, 2021 | ADPT | ↓ Sell | 14,916 | $35.00 | $522K | Direct | Aug 30, 2021 (3d) |
| Jul 14, 2021 | ADPT | ↓ Sell | 2,500 | $36.80 | $92K | Direct | Jul 19, 2021 (5d) |
| Jun 17, 2021 | ADPT | ↓ Sell | 4,000 | $40.00 | $160K | Direct | Jun 21, 2021 (4d) |
| Jun 14, 2021 | ADPT | ↓ Sell | 2,500 | $38.56 | $96K | Direct | Jun 16, 2021 (2d) |
| May 18, 2021 | ADPT | ↓ Sell | 2,500 | $35.00 | $88K | Direct | May 19, 2021 (1d) |
| Apr 14, 2021 | ADPT | ↓ Sell | 4,500 | $43.41 | $195K | Direct | Apr 16, 2021 (2d) |
| Mar 16, 2021 | ADPT | ↓ Sell | 6,000 | $43.06 | $258K | Direct | Mar 17, 2021 (1d) |
| Feb 16, 2021 | ADPT | ↓ Sell | 6,000 | $65.08 | $390K | Direct | Feb 16, 2021 (0d) |
| Jan 14, 2021 | ADPT | ↓ Sell | 6,000 | $65.88 | $395K | Direct | Jan 15, 2021 (1d) |
| Dec 14, 2020 | ADPT | ↓ Sell | 6,000 | $58.84 | $353K | Direct | Dec 16, 2020 (2d) |
| Nov 16, 2020 | ADPT | ↓ Sell | 6,000 | $47.69 | $286K | Direct | Nov 18, 2020 (2d) |
| Oct 14, 2020 | ADPT | ↓ Sell | 12,000 | $52.84 | $634K | Direct | Oct 16, 2020 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ADPT insiders
Open-market trades in the last 12 months
About Michelle Renee Griffin's insider trades
Michelle Renee Griffin is a director at Adaptive Biotechnologies (ADPT). Since Oct 14, 2020, Michelle has reported no open-market purchases and 18 sales worth $5.9M on SEC Form 4. In the last 12 months: 3 sales ($2.0M).
Their filings also include grants and awards (37 filings), option exercises (16 filings), shares returned to the company (3 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 ADPT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.