Impinj PI Institutional Ownership

Updated Oct 5, 2026

Impinj Inc (NASDAQ:PI) was held by 317 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

• Total holdings of Impinj shares rose 3.91% from Q1 2026, and the number of holders rose 10.07% from Q2 2025.
• Of the 317 holders, 187 added to their positions, 86 reduced their stakes and 44 left their positions unchanged in Q2 2026.
• Combined, institutional investors held 33.04Mn shares of PI as of Q2 2026, up 1.24Mn from the prior quarter and up 2.59Mn from a year earlier.
• As of June 30, 2026, the biggest holder of Impinj was FMR LLC with 4.56Mn shares.
• The largest position increases in PI for Q2 2026 were by Millennium Management LLC (+732.11K shares), FMR LLC (+282.25K shares), Manufacturers Life Insurance Company, The (+243.38K shares), State Street Corp (+215.72K shares) and BlackRock, Inc. (+135.88K shares).
• On the other side, among holders that kept a position in Impinj, the largest reductions in Q2 2026 came from UBS Asset Management Americas (-413.11K shares), Sylebra Capital LLC (-356.21K shares), Ameriprise Financial Inc (-327.36K shares), T. Rowe Price Investment Management, Inc. (-107.13K shares) and UBS Group AG (-103.66K shares).
• Impinj's 10 largest institutional shareholders as of Q2 2026 were FMR LLC (4.56Mn shares), BlackRock, Inc. (4.45Mn shares), Vanguard Portfolio Management LLC (2.19Mn shares), State Street Corp (1.7Mn shares), Capital International Investors (1.44Mn shares), Vanguard Capital Management LLC (1.28Mn shares), Capital World Investors (1.12Mn shares), Millennium Management LLC (834.38K shares), American Century Companies Inc (804.34K shares) and Sylebra Capital LLC (775.94K shares), per Business Quant data.