ADPT Institutional Ownership
Top institutional (13F) holders of ADPT and 5%+ (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
49
Institutional value
$2.43B
Top holder
VIKING GLOBAL INVESTORS LP
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| VIKING GLOBAL INVESTORS LPother | 18.5% | Aug 14, 2026 | $643.37M |
| BlackRock, Inc.holding company | 9.4% | Aug 7, 2026 | $324.73M |
| Vanguard Capital Managementinvestment advisor | 4.0% | Aug 13, 2026 | $137.36M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 3.7% | Aug 14, 2026 | $126.8M |
| Vanguard Portfolio Managementinvestment advisor | 3.4% | Aug 13, 2026 | $117.47M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 2.3% | Nov 6, 2026 | $107.54M |
| D. E. Shaw & Co., Inc.investment advisor | 2.9% | Aug 14, 2026 | $99.22M |
| STATE STREET CORPORATIONholding company | 2.1% | Sep 22, 2026 | $74.18M |
| UBS Group AGbank | 1.9% | Aug 13, 2026 | $67.15M |
| Invesco Ltd.holding company | 1.9% | Aug 14, 2026 | $66.37M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 1.8% | Aug 14, 2026 | $64.01M |
| T. Rowe Price Associates, Inc.investment advisor | 1.6% | Aug 14, 2026 | $57.17M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | 1.6% | Aug 13, 2026 | $54.15M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | 1.3% | Aug 14, 2026 | $46.52M |
| FRED ALGER MANAGEMENT, LLCinvestment advisor | 1.3% | Aug 14, 2026 | $44.88M |
| ARK Investment Management LLCinvestment advisor | 1.3% | Aug 14, 2026 | $44.84M |
| BANK OF AMERICA CORP /DE/holding company | 1.1% | Aug 14, 2026 | $37.11M |
| JANE STREET GROUP, LLCholding company | 1.0% | Aug 14, 2026 | $35.28M |
| NORTHERN TRUST CORPinvestment advisor | 0.9% | Aug 13, 2026 | $32.33M |
| Bank of New York Mellon Corpholding company | 0.6% | Nov 5, 2026 | $29.8M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 0.7% | Aug 14, 2026 | $25.28M |
| Ameriprise Financial, Inc.holding company | 0.7% | Aug 14, 2026 | $23.33M |
| Massachusetts Financial Services Companyinvestment advisor | 0.7% | Aug 3, 2026 | $22.99M |
| MORGAN STANLEYholding company | 0.5% | Aug 13, 2026 | $16.44M |
| FMR LLCinvestment advisor | 0.4% | Aug 13, 2026 | $15.22M |
5%+ holders
Current stakes of 5% or more from Schedule 13D and 13G filings. A joint filing shows once, under its lead filer.
| Holder | Form | Stake | Filed |
|---|---|---|---|
| Viking Global Equities Master Ltdotherwith HALVORSEN OLE ANDREAS and 6 others | SC 13G/A | 13.5% | May 15, 2026 |
| BlackRock, Inc.holding company | SC 13G/A | 7.9% | Jan 21, 2026 |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.