Through the 90-day period concluding February 07, 2026, Adaptive Biotechnologies's top three insider stakeholders include Ceo And Chairman Chad M Robins (2.46Mn shares), Chief Scientific Officer Harlan S Robins (1.18Mn shares), President And Coo Julie Rubinstein (588.25K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Chad M Robins | Ceo And Chairman | 2,459,245 | 04 Feb, 2026 |
| Harlan S Robins | Chief Scientific Officer | 1,179,524 | 04 Feb, 2026 |
| Julie Rubinstein | President And Coo | 588,249 | 06 Mar, 2025 |
| Tycho Peterson | Chief Financial Officer | 531,553 | 06 Mar, 2024 |
| Susan Bobulsky | Chief Commercial Officer And Mrd | 347,238 | 06 Mar, 2025 |
| Francis Lo | Chief People Officer | 315,978 | 14 Jan, 2026 |
| Sharon Benzeno | Chief Commercial Ofc Imm Med | 296,791 | 08 Dec, 2025 |
| Peter M Neupert | 224,690 | 12 Mar, 2025 | |
| Kyle Piskel | Chief Financial Officer | 216,637 | 06 Feb, 2026 |
| Nitin Sood | Chief Commercial Officer And Mrd | 214,808 | 08 Aug, 2023 |
| R Mark Adams | Chief Operating Officer | 175,361 | 12 Apr, 2023 |
| Stacy L Taylor | Svp And General Counsel | 139,365 | 23 Aug, 2024 |
| Katey Einterz Owen | 72,629 | 06 Mar, 2025 | |
| Michael J Pellini | 69,690 | 06 Mar, 2025 | |
| Robert Hershberg | 46,722 | 12 Dec, 2025 | |
| Henning Thorsen | Svp And Commercial Operations | 29,061 | 19 May, 2021 |
| Leslie Trigg | 25,907 | 08 Mar, 2023 | |
| Kevin T Conroy | 22,968 | 08 Mar, 2023 | |
| Chad M Cohen | Chief Financial Officer | 21,604 | 23 Dec, 2021 |
| Lance Baldo | Chief Medical Officer | 17,171 | 10 Mar, 2022 |
| Michelle Renee Griffin | 15,394 | 17 Mar, 2025 | |
| Jyoti Palaniappan | Svp And Diagnostics And T Detect | 9,158 | 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Feb, 2026 | Kyle Piskel | Common Stock | A | 2,145 | $12.14 | 218,782 | D | M |
| 04 Feb, 2026 | Kyle Piskel | Common Stock | D | 2,145 | $18.46 | 216,637 | D | S |
| 03 Feb, 2026 | Harlan S Robins | Common Stock | D | 8,120 | $19.00 | 1,179,524 | D | S |
| 02 Feb, 2026 | Chad M Robins | Common Stock | D | 124,998 | $18.44 | 2,459,245 | D | S |
| 02 Feb, 2026 | Harlan S Robins | Common Stock | D | 34,668 | $18.60 | 1,187,644 | D | S |
| 12 Jan, 2026 | Francis Lo | Common Stock | A | 36,650 | $7.80 | 352,628 | D | M |
| 12 Jan, 2026 | Francis Lo | Common Stock | A | 14,215 | $3.99 | 395,568 | D | M |
| 12 Jan, 2026 | Francis Lo | Common Stock | D | 79,590 | $17.73 | 315,978 | D | S |
| 12 Jan, 2026 | Francis Lo | Common Stock | A | 7,723 | $12.14 | 360,351 | D | M |
| 12 Jan, 2026 | Francis Lo | Common Stock | A | 21,002 | $8.46 | 381,353 | D | M |
| 12 Jan, 2026 | Kyle Piskel | Common Stock | D | 4,290 | $18.00 | 216,637 | D | S |
| 12 Jan, 2026 | Kyle Piskel | Common Stock | A | 4,290 | $12.14 | 220,927 | D | M |
| 06 Jan, 2026 | Harlan S Robins | Common Stock | D | 10,000 | $16.44 | 1,222,312 | D | S |
| 05 Jan, 2026 | Chad M Robins | Common Stock | D | 124,998 | $15.59 | 2,584,243 | D | S |
| 02 Jan, 2026 | Francis Lo | Common Stock | A | 3,125 | $3.99 | 319,103 | D | M |
| 02 Jan, 2026 | Francis Lo | Common Stock | D | 3,125 | $16.08 | 315,978 | D | S |
| 22 Dec, 2025 | Francis Lo | Common Stock | D | 4,394 | $17.50 | 315,978 | D | S |
| 22 Dec, 2025 | Francis Lo | Common Stock | A | 1,100 | $7.80 | 317,078 | D | M |
| 22 Dec, 2025 | Francis Lo | Common Stock | D | 4,394 | $17.50 | 315,978 | D | S |
| 22 Dec, 2025 | Francis Lo | Common Stock | A | 2,194 | $3.99 | 320,372 | D | M |