SEC Form 4 · accession 0001820885-26-000023
Adaptive Biotechnologies Corp · ADPT
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Susan Bobulsky
Officer — Chief Commercial Officer, MRD
Period of report
Sep 15, 2026
Accepted (ET)
Sep 17, 2026 · 6:50 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001478320
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Sep 15, 2026 | S | 1,195 | $27.00 | D | 395,794 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2025.