ADPT ADAPTIVE BIOTECHNOLOGIES COR
FollowStock (common), issuer CIK 1478320
203 managers (208 13F filers) reported a position in ADPT shares at 2024-12-31, 143,283,867 shares in all. 40 filers opened a position and 23 filers sold out during the quarter.
- Managers
- 203
- 13F filers
- 208
- New
- 40
- Added
- 67
- Reduced
- 45
- Sold out
- 23
- Shares held by filers
- 143,283,867
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
| Owner | Date | Shares | Price | Filing |
|---|---|---|---|---|
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-13 | -11,881 S | $25.5 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-13 | +11,881 M | $12.14 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-12 | -2,700 S | $26.07 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-12 | -9,181 S | $25.35 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-12 | +11,881 M | $12.14 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-09 | -11,881 S | $26.41 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-09 | +11,881 M | $12.14 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-08 | -11,881 S | $25.66 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-08 | +11,881 M | $12.14 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-07 | -11,881 S | $26.4 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-07 | +11,881 M | $12.14 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-06 | -499 S | $30.53 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-06 | -901 S | $29.71 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-06 | -1,100 S | $28.21 | Form 4 |
| RUBINSTEIN JULIEofficer (President and COO) | 2026-10-06 | -9,381 S | $27.36 | Form 4 |
13F holders, Q4 2024
Filers in the available 13F reports with a share position at 2024-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| SIMPLEX TRADING, LLC | 81 | $0 | 0% | -2,821 | 13F-HRTimelineValue filed as zero, left out of ratios. |
| Covestor Ltd | 23 | $0 | 0% | +2 | 13F-HRTimelineValue filed as zero, left out of ratios. |
| CONCOURSE FINANCIAL GROUP SECURITIES, I… | 0 | $0 | 0% | 0 | 13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios. |
Events
RUBINSTEIN JULIE reported transactions in ADPT shares with no net change in a Form 4 filed 2026-10-13. 0001780664-26-000039
Accepted , ingestedRUBINSTEIN JULIE reported transactions in ADPT shares with no net change in a Form 4 filed 2026-10-08. 0001780664-26-000037
Accepted , ingestedBOBULSKY SUSAN sold 6,444 ADPT shares on 2026-10-06, Form 4 filed 2026-10-08. 0001820885-26-000025
Accepted , ingested