356 institutions reported holding $4.89B of IMPINJ (PI) in SEC 13F filings for 2026-06-30. Largest institutional holders: FMR LLC ($653.5M), BlackRock, Inc. ($637.3M), VANGUARD GROUP INC ($532.7M), STATE STREET CORP ($243.6M), Capital International Investors ($206.7M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30