Adaptive Biotechnologies Corp (ADPT) insider trading
Every open-market stock purchase and sale by Adaptive Biotechnologies Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Harlan S Robins (C-suite exec) and 6 others sold $46.3M in the last 90 days.
- Last insider buy: Viking Global Investors LP (10% owner), $5M, 7 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $122M (70 sales). Last close $28.61 on Sep 18, 2026.
Recent ADPT insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 16, 2026 | Francis Lo (C-suite exec) | Sold | $3M |
| Sep 16, 2026 | Francis Lo (C-suite exec) | Sold | $225K |
| Sep 16, 2026 | Francis Lo (C-suite exec) | Bought (not open market) | — |
| Sep 16, 2026 | Francis Lo (C-suite exec) | Bought (not open market) | — |
| Sep 16, 2026 | Francis Lo (C-suite exec) | Bought (not open market) | — |
| Sep 16, 2026 | Francis Lo (C-suite exec) | Bought (not open market) | — |
| Sep 15, 2026 | Susan Bobulsky (C-suite exec) | Sold | $32.3K |
| Aug 31, 2026 | Katey Einterz Owen (Director) | Sold (not open market) | — |
| Aug 26, 2026 | Katey Einterz Owen (Director) | Sold | $250K |
| Aug 18, 2026 | Chad M Robins (CEO) | Sold | $6.8M |
| Aug 18, 2026 | Robert Hershberg (Director) | Sold | $382K |
| Aug 18, 2026 | Robert Hershberg (Director) | Sold | $366K |
| Aug 18, 2026 | Chad M Robins (CEO) | Sold | $5.1K |
| Aug 18, 2026 | Robert Hershberg (Director) | Bought (not open market) | — |
| Aug 18, 2026 | Chad M Robins (CEO) | Bought (not open market) | — |
| Aug 17, 2026 | Chad M Robins (CEO) | Sold | $8M |
| Aug 17, 2026 | Peter M Neupert (Director) | Sold | $1.8M |
| Aug 17, 2026 | Peter M Neupert (Director) | Sold | $1M |
| Aug 17, 2026 | Peter M Neupert (Director) | Sold | $378K |
| Aug 17, 2026 | Chad M Robins (CEO) | Sold | $64.6K |
| Aug 17, 2026 | Chad M Robins (CEO) | Bought (not open market) | — |
| Aug 17, 2026 | Peter M Neupert (Director) | Bought (not open market) | — |
| Aug 10, 2026 | Susan Bobulsky (C-suite exec) | Sold | $75K |
| Jul 30, 2026 | Susan Bobulsky (C-suite exec) | Sold | $31.2K |
| Jul 21, 2026 | Harlan S Robins (C-suite exec) | Sold | $6.1M |
Who's trading ADPT
- Francis Lo, C-suite exec: sold $13.2M (15 sales), last Sep 16, 2026
- Susan Bobulsky, C-suite exec: sold $1.2M (9 sales), last Sep 15, 2026
- Katey Einterz Owen, Director: sold $250K (1 sale), last Aug 31, 2026
- Chad M Robins, CEO: sold $39.8M (19 sales), last Aug 18, 2026
- Robert Hershberg, Director: sold $1.1M (3 sales), last Aug 18, 2026
- Peter M Neupert, Director: sold $3.1M (3 sales), last Aug 17, 2026
- Harlan S Robins, C-suite exec: sold $29.6M (17 sales), last Jul 21, 2026
- Sharon Benzeno, Officer: sold $14.7M (6 sales), last Jun 29, 2026
- Michelle Renee Griffin, Director: sold $2M (3 sales), last Jun 25, 2026
- Kyle Piskel, CFO: sold $3.6M (6 sales), last May 18, 2026
- Julie Rubinstein, COO: sold $13.4M (47 sales), last Apr 27, 2026
Get free alerts when an insider at Adaptive Biotechnologies Corp files a new trade →