Adaptive Biotechnologies Corporation (ADPT) Insider Trading
Over the last 3 months, ADPT insiders made 0 open-market buys and 28 sales, a net sale of -$12.8M (SEC Form 4). Over the last 6 months, 209 institutions increased and 188 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
28
Net (3m)
-$12.8M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +54.5%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Sell | 154,768 | $21.14 |
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Option | 1,837 | $12.14 |
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Option | 11,034 | $12.14 |
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Sell | 11,034 | $21.00 |
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Option | 24,944 | $8.46 |
| Jun 30, 2026 | BENZENO SHARONofficer: Chief Commercial Ofc Imm Med | Option | 51,570 | $8.12 |
| Jun 29, 2026 | GRIFFIN MICHELLE RENEEdirector | Option | 52,084 | $7.80 |
| Jun 29, 2026 | GRIFFIN MICHELLE RENEEdirector | Sell | 52,084 | $20.18 |
| Jun 29, 2026 | BOBULSKY SUSANofficer: Chief Commercial Officer, MRD | Sell | 5,000 | $20.50 |
| Jun 17, 2026 | ROBINS HARLAN Sofficer: Chief Scientific Officer | Sell | 100,000 | $17.37 |
| Jun 17, 2026 | ROBINS HARLAN Sofficer: Chief Scientific Officer | Sell | 6,160 | $18.01 |
| Jun 15, 2026 | BOBULSKY SUSANofficer: Chief Commercial Officer, MRD | Sell | 5,000 | $19.00 |
| Jun 8, 2026 | BOBULSKY SUSANofficer: Chief Commercial Officer, MRD | Sell | 11,000 | $18.00 |
| Jun 8, 2026 | LO FRANCISofficer: Chief People Officer | Sell | 39,741 | $17.49 |
| Jun 8, 2026 | LO FRANCISofficer: Chief People Officer | Option | 5,792 | $12.14 |
| Jun 8, 2026 | LO FRANCISofficer: Chief People Officer | Option | 9,376 | $8.12 |
| Jun 8, 2026 | LO FRANCISofficer: Chief People Officer | Option | 2,009 | $8.46 |
| Jun 8, 2026 | LO FRANCISofficer: Chief People Officer | Option | 2,344 | $3.99 |
| May 20, 2026 | PISKEL KYLEofficer: Chief Financial Officer | Sell | 3,115 | $13.04 |
| Apr 29, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 19,037 | $14.23 |
| Apr 29, 2026 | RUBINSTEIN JULIEofficer: President and COO | Option | 14,707 | $8.46 |
| Apr 24, 2026 | RUBINSTEIN JULIEofficer: President and COO | Option | 14,722 | $8.46 |
| Apr 24, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 19,060 | $14.13 |
| Apr 21, 2026 | RUBINSTEIN JULIEofficer: President and COO | Option | 11,881 | $12.14 |
| Apr 21, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 19,060 | $14.57 |
| Apr 21, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 30,941 | $14.66 |
| Apr 21, 2026 | RUBINSTEIN JULIEofficer: President and COO | Option | 14,722 | $8.46 |
| Apr 16, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 19,060 | $14.56 |
| Apr 16, 2026 | RUBINSTEIN JULIEofficer: President and COO | Option | 14,722 | $8.46 |
| Apr 13, 2026 | RUBINSTEIN JULIEofficer: President and COO | Sell | 3,338 | $14.08 |
Source: ADPT SEC Form 4 filings, latest Jun 30, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ADPT positions over the last 6 months (SEC Form 13F).
Increased
209
New positions
104
Reduced
188
Sold out
76
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | Unchanged | 30.0M | May 15, 2026 |
| VIKING GLOBAL INVESTORS LP | Unchanged | 30.0M | Feb 17, 2026 |
| BLACKROCK, INC. | Reduced | 13.3M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 13.3M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 12.2M | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 11.3M | Jan 29, 2026 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Increased | 5.4M | May 11, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 4.5M | May 8, 2026 |
| INVESCO LTD. | Increased | 4.5M | May 12, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 4.4M | Feb 17, 2026 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New Position | 4.1M | Feb 11, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 3.9M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.6M | May 15, 2026 |
| LORD, ABBETT & CO. LLC | Increased | 3.5M | May 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.5M | Feb 9, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.