Updated Jul 16, 2026 · Last SEC filing 2026-07-07
Adaptive Biotechnologies Corp (ADPT) has filed 14 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 4 Form 8-K material event filings were reported by ADPT in the last 90 days. 13 Form 144 notices of proposed sale were filed for ADPT stock. InsiderAlpha tracks every ADPT SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001478320 |
|---|
| Form 4 filings (90d) | 14 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 13 |
| Latest Form 4 filing | 2026-07-07 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| LO FRANCIS | Chief People Officer | M — Option exercise | 12.6K | $8.46 | $107K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 12.6K | $12.14 | $153K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 12.6K | $7.80 | $98K | SEC | |
| ROBINS HARLAN S | Chief Scientific Officer | S — Open-market sale | 146.9K | $22.45 | $3.30M | SEC | |
| LO FRANCIS | Chief People Officer | S — Open-market sale | 44.8K | $22.59 | $1.01M | SEC | |
| ROBINS HARLAN S | Chief Scientific Officer | S — Open-market sale | 239.4K | $21.74 | $5.20M | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 12.2K | $8.46 | $103K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 3.3K | $12.14 | $40K | SEC | |
| LO FRANCIS | Chief People Officer | S — Open-market sale | 42.3K | $22.50 | $951K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 4.7K | $3.99 | $19K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 14.1K | $8.12 | $114K | SEC | |
| LO FRANCIS | Chief People Officer | S — Open-market sale | 8.7K | $22.18 | $194K | SEC | |
| LO FRANCIS | Chief People Officer | M — Option exercise | 3.5K | $7.80 | $27K | SEC | |
| BOBULSKY SUSAN | Chief Commercial Officer, MRD | S — Open-market sale | 487 | $22.00 | $11K | SEC | |
| BENZENO SHARON | Chief Commercial Ofc Imm Med | S — Open-market sale | 154.8K | $21.14 | $3.27M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Adaptive Biotechnologies Corp (ADPT). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| LO FRANCIS | 28 | $3.69M |
| RUBINSTEIN JULIE | 23 | $3.09M |
| BENZENO SHARON | 12 | $4.39M |
| ROBINS HARLAN S | 4 | $10.35M |
| BOBULSKY SUSAN | 4 | $406K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ADPT insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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