ADPT Adaptive Biotechnologies Corp: institutional ownership and insider trading
313 funds reported holding $3.68B of Adaptive Biotechnologies Corp in their latest 13F filings; in Q2 2026 funds net bought $228M, with 46 new positions and 42 funds selling out; over the last 12 months insiders bought $0 and sold $128M on the open market.
Famous investors holding ADPT
- Andreas Halvorsen (Viking Global Investors): $643M, 1.8% of the portfolio
- Cathie Wood (ARK Investment Management): $44.8M, 0.3% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $99.2M, 0.1% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $6.50M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $10.8M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $5.54M, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $860K, 0.0% of the portfolio
Largest institutional holders of ADPT
- VIKING GLOBAL INVESTORS LP — $643M
- BlackRock, Inc. (BLK) — $325M
- VANGUARD GROUP INC — $183M
- VANGUARD CAPITAL MANAGEMENT LLC — $137M
- WELLINGTON MANAGEMENT GROUP LLP — $127M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $117M
- D. E. Shaw & Co., Inc. — $99.2M
- WESTFIELD CAPITAL MANAGEMENT CO LP — $91.5M
- GEODE CAPITAL MANAGEMENT, LLC — $78.1M
- STATE STREET CORP (STT, STT-PG) — $74.2M
Recent ADPT insider trades
- Oct 21, 2026: Rubinstein Julie sold 35,643 shares ($879K)
- Oct 16, 2026: Rubinstein Julie sold 35,643 shares ($897K)
- Oct 13, 2026: Rubinstein Julie sold 35,643 shares ($920K)
- Oct 8, 2026: Rubinstein Julie sold 35,643 shares ($948K)
5%+ owners
- VIKING GLOBAL INVESTORS LP: 18.8% (Schedule 13G/A, filed May 15, 2026)