ADPTHealthcareMid-Cap
Adaptive Biotechnologies Corp Insider Trading Activity
Every SEC Form 4 insider transaction reported for Adaptive Biotechnologies Corp (ADPT), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are ADPT insiders buying or selling?
Adaptive Biotechnologies Corp insiders reported 4 open-market buys ($10.2M) and 385 sells ($1.1B) across 389 Form 4 filings — a net selling position of $1.0B.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 28, 2026)
Total Form 4 filings
389
SEC EDGAR
Insider filers
26
Insider buys (4)
$10.2M
Insider sells (385)
$1.1B
Insider sentiment
Net sellingNet insider flow of $1.0B in net selling.
Recent ADPT insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 28, 2026 | Katey Einterz Owen | Director | Sale | 9.6K | $26.00 | $250.0K |
| Aug 20, 2026 | Robert Hershberg | Director | Sale | 30.7K | $24.40 | $748.2K |
| Aug 20, 2026 | Chad M Robins | CEO and Chairman | Sale | 600.0K | $24.80 | $14.9M |
| Aug 20, 2026 | Peter M Neupert | Director | Sale | 124.7K | $25.15 | $3.1M |
| Aug 12, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 3.0K | $25.00 | $75.0K |
| Aug 3, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 1.3K | $24.00 | $31.2K |
| Jul 23, 2026 | Harlan S Robins | Chief Scientific Officer | Sale | 492.4K | $21.89 | $10.8M |
| Jul 20, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 5.0K | $23.00 | $115.0K |
| Jul 17, 2026 | Francis LO | Chief People Officer | Sale | 105.8K | $22.59 | $2.4M |
| Jul 7, 2026 | Harlan S Robins | Chief Scientific Officer | Sale | 386.2K | $22.01 | $8.5M |
| Jul 6, 2026 | Francis LO | Chief People Officer | Sale | 95.8K | $22.51 | $2.2M |
| Jul 6, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 487 | $22.00 | $10.7K |
| Jun 30, 2026 | Sharon Benzeno | Chief Commercial Ofc Imm Med | Sale | 165.8K | $21.13 | $3.5M |
| Jun 29, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 5.0K | $20.50 | $102.5K |
| Jun 29, 2026 | Michelle Renee Griffin | Director | Sale | 52.1K | $20.18 | $1.1M |
| Jun 18, 2026 | Harlan S Robins | Chief Scientific Officer | Sale | 106.2K | $17.41 | $1.8M |
| Jun 15, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 5.0K | $19.00 | $95.0K |
| Jun 9, 2026 | Francis LO | Chief People Officer | Sale | 39.7K | $17.49 | $695.1K |
| Jun 9, 2026 | Susan Bobulsky | Chief Commercial Officer, MRD | Sale | 11.0K | $18.00 | $198.0K |
| May 20, 2026 | Kyle Piskel | Chief Financial Officer | Sale | 3.1K | $13.04 | $40.6K |
| Apr 29, 2026 | Julie Rubinstein | President and COO | Sale | 19.0K | $14.23 | $270.9K |
| Apr 24, 2026 | Julie Rubinstein | President and COO | Sale | 57.2K | $13.96 | $798.4K |
| Apr 21, 2026 | Julie Rubinstein | President and COO | Sale | 69.1K | $14.60 | $1.0M |
| Apr 16, 2026 | Julie Rubinstein | President and COO | Sale | 57.2K | $14.45 | $826.3K |
| Apr 13, 2026 | Julie Rubinstein | President and COO | Sale | 57.2K | $13.26 | $758.1K |
Showing the 25 most recent of 389 Form 4 filings for Adaptive Biotechnologies Corp.
Most active ADPT insiders
- Julie Rubinstein54 filings
- Harlan S Robins44 filings
- Chad M Robins38 filings
- Chad M Cohen36 filings
- Sharon Benzeno30 filings
Ask anything about ADPT insider activity
Use Trabud's AI agent to query Adaptive Biotechnologies Corp's Form 4 history in plain English — "Show me ADPT CEO purchases this year" or compare it against any other ticker.
Open the AI agentADPT insider trading FAQ
Are Adaptive Biotechnologies Corp insiders buying or selling?
Across 389 SEC Form 4 filings, Adaptive Biotechnologies Corp (ADPT) insiders reported 4 open-market purchases totaling $10.2M and 385 sales totaling $1.1B. That is a net selling position of $1.0B.
How many insiders trade ADPT stock?
26 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Adaptive Biotechnologies Corp. The most recent filing was accepted on Aug 28, 2026.
Where does Trabud get ADPT insider trading data?
All ADPT insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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