Institutional Ownership
Adaptive Biotechnologies Cor
CUSIP 00650F109COMADPTQ1 2026
13D / 13G Filings
35
Schedule 13D/13G on record
Beneficial Filers
12
Distinct reporting persons
Largest Stake
30.9%
Max % of class reported
Institutional Holders
289
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
35 filings · latest Jan 21, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jan 21, 2026 | Blackrock, Inc. | 13G/A | 7.9% | 11.99M | SEC |
| 2 | Jul 9, 2025 | Rubric Capital Management LP | 13G/A | 4.1% | 6.26M | SEC |
| 3 | Jun 6, 2025 | Ark Investment Management LLC | 13G/A | 2.9% | 4.40M | SEC |
| 4 | May 14, 2025 | Ark Investment Management LLC | 13G | 5.2% | 7.73M | SEC |
| 5 | May 7, 2025 | Ark Investment Management LLC | 13G/A | 4.0% | 6.07M | SEC |
| 6 | Apr 17, 2025 | Blackrock, Inc. | 13G/A | 6.7% | 9.94M | SEC |
| 7 | Feb 14, 2025 | Ark Investment Management LLC | 13G/A | 6.4% | 9.42M | SEC |
| 8 | Feb 13, 2025 | Nikko Asset Management Americas, Inc. | 13G/A | 4.6% | 6.83M | SEC |
| 9 | Feb 4, 2025 | Sumitomo Mitsui Trust Group, Inc. | 13G/A | 4.6% | 6.83M | SEC |
| 10 | Jan 27, 2025 | Integrated Core Strategies (Us) LLC | 13G/A | 11.0% | 6.29M | SEC |
25 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Adaptive Biotechnologies Cor.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Viking Global Investors LP | 29.99M | $416.31M |
| 2 | Blackrock, Inc. | 13.30M | $184.65M |
| 3 | Westfield Capital Management Co LP | 5.44M | $75.46M |
| 4 | Invesco Ltd. | 4.45M | $61.77M |
| 5 | Wellington Management Group LLP | 3.86M | $53.54M |
| 6 | Geode Capital Management, LLC | 3.64M | $50.48M |
| 7 | Goldman Sachs Group Inc | 3.24M | $45.00M |
| 8 | State Street Corp | 3.23M | $44.79M |
| 9 | Ameriprise Financial Inc | 3.02M | $41.88M |
| 10 | Bnp Paribas Asset Management Holding S.A. | 2.69M | $37.31M |