12 insiders reported 287 Form 4 transactions for Adaptive Biotechnologies Corp (ADPT) over the past 18 months (most recent 2026-08-20). Recent activity: HERSHBERG ROBERT (Director) Buy 15,000 shares, HERSHBERG ROBERT (Director) Sell 15,000 shares, HERSHBERG ROBERT (Director) Sell 15,664 shares, ROBINS CHAD M (CEO and Chairman) Sell 204 shares, ROBINS CHAD M (CEO and Chairman) Buy 321,324 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | HERSHBERG ROBERT | Director | Buy | 15,000 | $94,800 |
| 2026-08-20 | HERSHBERG ROBERT | Director | Sell | 15,000 | $365,850 |
| 2026-08-20 | HERSHBERG ROBERT | Director | Sell | 15,664 | $382,358 |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Sell | 204 | $5,129 |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Buy | 321,324 | $2.1M |
| 2026-08-19 | NEUPERT PETER M | Director | Sell | 15,000 | $378,450 |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Sell | 318,799 | $8.0M |
| 2026-08-19 | NEUPERT PETER M | Director | Sell | 40,000 | $1.0M |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Sell | 2,525 | $64,564 |
| 2026-08-19 | NEUPERT PETER M | Director | Sell | 69,690 | $1.8M |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Buy | 278,676 | $1.8M |
| 2026-08-19 | ROBINS CHAD M | CEO and Chairman | Sell | 278,472 | $6.8M |
| 2026-08-19 | NEUPERT PETER M | Director | Buy | 15,000 | $94,800 |
| 2026-08-12 | BOBULSKY SUSAN | Chief Commercial Officer, MRD | Sell | 3,000 | $75,000 |
| 2026-08-03 | BOBULSKY SUSAN | Chief Commercial Officer, MRD | Sell | 1,299 | $31,176 |
| 2026-07-23 | ROBINS HARLAN S | Chief Scientific Officer | Buy | 284,800 | $1.9M |
| 2026-07-23 | ROBINS HARLAN S | Chief Scientific Officer | Sell | 278,698 | $6.1M |
| 2026-07-23 | ROBINS HARLAN S | Chief Scientific Officer | Sell | 213,702 | $4.7M |
| 2026-07-20 | BOBULSKY SUSAN | Chief Commercial Officer, MRD | Sell | 5,000 | $115,000 |
| 2026-07-17 | LO FRANCIS | Chief People Officer | Buy | 59,374 | $463,117 |
| 2026-07-17 | LO FRANCIS | Chief People Officer | Buy | 23,677 | $287,439 |
| 2026-07-17 | LO FRANCIS | Chief People Officer | Buy | 22,711 | $192,135 |
| 2026-07-17 | LO FRANCIS | Chief People Officer | Sell | 105,762 | $2.4M |
| 2026-07-07 | ROBINS HARLAN S | Chief Scientific Officer | Sell | 239,351 | $5.2M |
| 2026-07-07 | ROBINS HARLAN S | Chief Scientific Officer | Sell | 146,889 | $3.3M |
Source: SEC Form 4 filings · as of 2026-08-20