As of April 17, 2026, the three largest insider holders of ADPT are Chad M Robins (Ceo And Chairman, 2.18Mn shares), Harlan S Robins (Chief Scientific Officer, 1.52Mn shares), Harlan S Robins (Chief Scientific Officer, 1.52Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Chad M Robins | Ceo And Chairman | 2,180,518 | 0 | 08 Apr, 2026 |
| Harlan S Robins | Chief Scientific Officer | 1,522,058 | 0 | 13 Mar, 2026 |
| Harlan S Robins | Chief Scientific Officer | 1,522,058 | 0 | 13 Mar, 2026 |
| Harlan S Robins | Chief Scientific Officer | 1,512,058 | 0 | 10 Apr, 2026 |
| Harlan S Robins | Chief Scientific Officer | 1,512,058 | 0 | 10 Apr, 2026 |
| Tycho Peterson | Chief Financial Officer | 531,553 | 0 | 06 Mar, 2024 |
| Tycho Peterson | Chief Financial Officer | 531,553 | 0 | 06 Mar, 2024 |
| Tycho Peterson | Chief Financial Officer | 531,553 | 0 | 06 Mar, 2024 |
| Tycho Peterson | Chief Financial Officer | 531,553 | 0 | 06 Mar, 2024 |
| Julie Rubinstein | President And Coo | 447,202 | 0 | 02 Apr, 2026 |
| Julie Rubinstein | President And Coo | 434,188 | 0 | 08 Apr, 2026 |
| Julie Rubinstein | President And Coo | 434,188 | 0 | 08 Apr, 2026 |
| Susan Bobulsky | Chief Commercial Officer, Mrd | 427,775 | 0 | 13 Mar, 2026 |
| Susan Bobulsky | Chief Commercial Officer, Mrd | 427,775 | 0 | 13 Mar, 2026 |
| Susan Bobulsky | Chief Commercial Officer, Mrd | 427,775 | 0 | 13 Mar, 2026 |
| Susan Bobulsky | Chief Commercial Officer, Mrd | 427,775 | 0 | 13 Mar, 2026 |
| Julie Rubinstein | President And Coo | 421,174 | 0 | 13 Apr, 2026 |
| Francis Lo | Chief People Officer | 291,374 | 0 | 13 Mar, 2026 |
| Francis Lo | Chief People Officer | 291,374 | 0 | 13 Mar, 2026 |
| Sharon Benzeno | Chief Commercial Ofc Imm Med | 272,751 | 0 | 13 Mar, 2026 |
| Sharon Benzeno | Chief Commercial Ofc Imm Med | 272,751 | 0 | 13 Mar, 2026 |
| Sharon Benzeno | Chief Commercial Ofc Imm Med | 272,751 | 0 | 13 Mar, 2026 |
| Sharon Benzeno | Chief Commercial Ofc Imm Med | 272,751 | 0 | 13 Mar, 2026 |
| Francis Lo | Chief People Officer | 271,154 | 0 | 10 Apr, 2026 |
| Francis Lo | Chief People Officer | 271,154 | 0 | 10 Apr, 2026 |
| Kyle Piskel | Chief Financial Officer | 259,840 | 0 | 13 Mar, 2026 |
| Kyle Piskel | Chief Financial Officer | 259,840 | 0 | 13 Mar, 2026 |
| Kyle Piskel | Chief Financial Officer | 259,840 | 0 | 13 Mar, 2026 |
| Kyle Piskel | Chief Financial Officer | 259,840 | 0 | 13 Mar, 2026 |
| Peter M Neupert | - | 240,315 | 0 | 06 Mar, 2026 |
| Peter M Neupert | - | 240,315 | 0 | 06 Mar, 2026 |
| Peter M Neupert | - | 240,315 | 0 | 06 Mar, 2026 |
| Nitin Sood | Chief Commercial Officer, Mrd | 214,808 | 0 | 08 Aug, 2023 |
| Nitin Sood | Chief Commercial Officer, Mrd | 214,808 | 0 | 08 Aug, 2023 |
| Nitin Sood | Chief Commercial Officer, Mrd | 214,808 | 0 | 08 Aug, 2023 |
| Nitin Sood | Chief Commercial Officer, Mrd | 214,808 | 0 | 08 Aug, 2023 |
| R Mark Adams | Chief Operating Officer | 175,361 | 0 | 12 Apr, 2023 |
| Stacy L Taylor | Svp And General Counsel | 139,365 | 0 | 23 Aug, 2024 |
| Stacy L Taylor | Svp And General Counsel | 139,365 | 0 | 23 Aug, 2024 |
| Stacy L Taylor | Svp And General Counsel | 139,365 | 0 | 23 Aug, 2024 |
| Stacy L Taylor | Svp And General Counsel | 139,365 | 0 | 23 Aug, 2024 |
| Katey Einterz Owen | - | 88,254 | 0 | 06 Mar, 2026 |
| Katey Einterz Owen | - | 88,254 | 0 | 06 Mar, 2026 |
| Katey Einterz Owen | - | 88,254 | 0 | 06 Mar, 2026 |
| Katey Einterz Owen | - | 88,254 | 0 | 06 Mar, 2026 |
| Michael J Pellini | - | 69,690 | 0 | 06 Mar, 2025 |
| Michael J Pellini | - | 69,690 | 0 | 06 Mar, 2025 |
| Michael J Pellini | - | 69,690 | 0 | 06 Mar, 2025 |
| Michael J Pellini | - | 69,690 | 0 | 06 Mar, 2025 |
| Robert Hershberg | - | 62,347 | 0 | 06 Mar, 2026 |
| Robert Hershberg | - | 62,347 | 0 | 06 Mar, 2026 |
| Robert Hershberg | - | 62,347 | 0 | 06 Mar, 2026 |
| Leslie Trigg | - | 25,907 | 0 | 08 Mar, 2023 |
| Leslie Trigg | - | 25,907 | 0 | 08 Mar, 2023 |
| Leslie Trigg | - | 25,907 | 0 | 08 Mar, 2023 |
| Leslie Trigg | - | 25,907 | 0 | 08 Mar, 2023 |
| Kevin T Conroy | - | 22,968 | 0 | 08 Mar, 2023 |
| Kevin T Conroy | - | 22,968 | 0 | 08 Mar, 2023 |
| Kevin T Conroy | - | 22,968 | 0 | 08 Mar, 2023 |
| Chad M Cohen | Chief Financial Officer | 21,604 | 0 | 23 Dec, 2021 |
| Chad M Cohen | Chief Financial Officer | 21,604 | 0 | 23 Dec, 2021 |
| Chad M Cohen | Chief Financial Officer | 21,604 | 0 | 23 Dec, 2021 |
| Lance Baldo | Chief Medical Officer | 17,171 | 0 | 10 Mar, 2022 |
| Lance Baldo | Chief Medical Officer | 17,171 | 0 | 10 Mar, 2022 |
| Lance Baldo | Chief Medical Officer | 17,171 | 0 | 10 Mar, 2022 |
| Lance Baldo | Chief Medical Officer | 17,171 | 0 | 10 Mar, 2022 |
| Michelle Renee Griffin | - | 15,625 | 0 | 13 Mar, 2026 |
| Michelle Renee Griffin | - | 15,625 | 0 | 13 Mar, 2026 |
| Michelle Renee Griffin | - | 15,625 | 0 | 13 Mar, 2026 |
| Michelle Renee Griffin | - | 15,625 | 0 | 13 Mar, 2026 |
| Jyoti Palaniappan | Svp, Diagnostics, T Detect | 9,158 | 0 | 19 Jul, 2021 |
| Jyoti Palaniappan | Svp, Diagnostics, T Detect | 9,158 | 0 | 19 Jul, 2021 |
| Jyoti Palaniappan | Svp, Diagnostics, T Detect | 9,158 | 0 | 19 Jul, 2021 |
| Jyoti Palaniappan | Svp, Diagnostics, T Detect | 9,158 | 0 | 19 Jul, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Apr, 2026 | Julie Rubinstein | Common Stock | A | 14,722 | $7.27 | 448,910 | D | M |
| 09 Apr, 2026 | Julie Rubinstein | Common Stock | D | 16,960 | $13.79 | 431,950 | D | S |
| 09 Apr, 2026 | Julie Rubinstein | Common Stock | D | 2,100 | $14.44 | 429,850 | D | S |
| 10 Apr, 2026 | Julie Rubinstein | Common Stock | A | 14,722 | $7.27 | 444,572 | D | M |
| 10 Apr, 2026 | Julie Rubinstein | Common Stock | D | 18,660 | $12.75 | 425,912 | D | S |
| 10 Apr, 2026 | Julie Rubinstein | Common Stock | D | 400 | $13.48 | 425,512 | D | S |
| 13 Apr, 2026 | Julie Rubinstein | Common Stock | A | 8,109 | $7.27 | 433,621 | D | M |
| 13 Apr, 2026 | Julie Rubinstein | Common Stock | A | 6,613 | $8.46 | 440,234 | D | M |
| 13 Apr, 2026 | Julie Rubinstein | Common Stock | D | 15,722 | $12.95 | 424,512 | D | S |
| 13 Apr, 2026 | Julie Rubinstein | Common Stock | D | 3,338 | $14.08 | 421,174 | D | S |
| 09 Apr, 2026 | Julie Rubinstein | Stock Option (right to buy) | D | 14,722 | $0.00 | 22,831 | D | M |
| 10 Apr, 2026 | Julie Rubinstein | Stock Option (right to buy) | D | 14,722 | $0.00 | 8,109 | D | M |
| 13 Apr, 2026 | Julie Rubinstein | Stock Option (right to buy) | D | 8,109 | $0.00 | 0 | D | M |
| 13 Apr, 2026 | Julie Rubinstein | Stock Option (right to buy) | D | 6,613 | $0.00 | 192,936 | D | M |
| 08 Apr, 2026 | Harlan S Robins | Common Stock | D | 10,000 | $14.85 | 1,512,058 | D | S |
| 08 Apr, 2026 | Francis Lo | Common Stock | A | 2,344 | $3.99 | 293,718 | D | M |
| 08 Apr, 2026 | Francis Lo | Common Stock | D | 22,564 | $15.07 | 271,154 | D | S |
| 08 Apr, 2026 | Francis Lo | Stock Option (right to buy) | D | 2,344 | $0.00 | 88,297 | D | M |
| 06 Apr, 2026 | Chad M Robins | Common Stock | D | 83,332 | $14.41 | 2,217,781 | D | S |
| 06 Apr, 2026 | Julie Rubinstein | Common Stock | A | 14,722 | $7.27 | 461,924 | D | M |