Chad M Robins sold $15M of ADPT
CEO and Chairman at Adaptive Biotechnologies Corp. 600,000 shares at an average of $24.80, traded Aug 17, 2026, filed Aug 19, 2026.
Score components
- +25RoleCEO
- +25Trade size$14.9M at market
- +5Share of holdings soldSold 24% of holdings
- +15Cluster5 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001780649-26-000014, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 17, 2026 | MOption exercise Common Stock | +321,324 | $6.55 | $2.1M | 2,501,842 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -318,799 | $25.08 | $8.0M | 2,183,043 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -2,525 | $25.57 | $65k | 2,180,518 | Aug 19, 2026 |
| Aug 18, 2026 | MOption exercise Common Stock | +278,676 | $6.55 | $1.8M | 2,459,194 | Aug 19, 2026 |
| Aug 18, 2026 | SOpen-market sale Common Stock | -278,472 | $24.48 | $6.8M | 2,180,722 | Aug 19, 2026 |
| Aug 18, 2026 | SOpen-market sale Common Stock | -204 | $25.14 | $5,129 | 2,180,518 | Aug 19, 2026 |
| Aug 17, 2026 | MOption exercise Stock Option (right to buy)derivative | -321,324 | $0.00 | $0 | 278,676 | Aug 19, 2026 |
| Aug 18, 2026 | MOption exercise Stock Option (right to buy)derivative | -278,676 | $0.00 | $0 | 0 | Aug 19, 2026 |
Related signals
Other insiders at Adaptive Biotechnologies Corp and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| Pro nowfree Oct 20, 2026 | Adaptive Biotechnologies Corp | Julie Rubinstein President and COO | $920k 35,643 shares | -9% | |
| Pro nowfree Oct 15, 2026 | Adaptive Biotechnologies Corp | Julie Rubinstein President and COO | $948k 35,643 shares | -9% | |
| Pro nowfree Oct 15, 2026 | Adaptive Biotechnologies Corp | Susan Bobulsky Chief Commercial Officer, MRD | $193k 6,444 shares | -2% | |
| 22Weak | Adaptive Biotechnologies Corp | Francis Lo Chief People Officer | $758k 26,792 shares | -11% | |
| 25Weak | Adaptive Biotechnologies Corp | Julie Rubinstein President and COO | $1.0M 35,643 shares | -9% | |
| 23Weak | Adaptive Biotechnologies Corp | Francis Lo Chief People Officer | $3.2M 115,406 shares | -34% | |
| 8Weak | Adaptive Biotechnologies Corp | Susan Bobulsky Chief Commercial Officer, MRD | $32k 1,195 shares | -0% | |
| 48Moderate | Adaptive Biotechnologies Corp | Katey Einterz Owen director | $250k 9,615 shares | -11% | |
| 46Moderate | Adaptive Biotechnologies Corp | Robert Hershberg director | $748k 30,664 shares | -40% | |
| 50Moderate | Adaptive Biotechnologies Corp | Peter M Neupert director | $3.1M 124,690 shares | -49% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.