BlackRock, Inc. filed Amendment No. 6 to its beneficial ownership statement with the SEC on October 27, 2026, disclosing a 14.7% stake in Impinj, Inc. common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: BlackRock reported beneficially owning 4,495,591 shares of Impinj, Inc. common stock, representing 14.7% of the class.
  • Sole voting power: BlackRock disclosed sole voting power over 4,435,487 shares, with no shared voting power reported.
  • Sole dispositive power: The filing lists sole dispositive power over all 4,495,591 shares, with zero shared dispositive power.
  • iShares Core S&P Small-Cap ETF interest: According to the filing, one person, iShares Core S&P Small-Cap ETF, holds an interest of more than five percent of the total outstanding common stock of Impinj, Inc.
  • Parent holding company: BlackRock, Inc., incorporated in Delaware and headquartered at 50 Hudson Yards, New York, NY 10001, is identified as a parent holding company in the filing.
  • Event date: The date of the event requiring this filing is listed as September 30, 2026.

BlackRock's Reported Position in Impinj as of September 30, 2026

According to the filing, BlackRock, Inc. - a Delaware-incorporated parent holding company - submitted Amendment No. 6 to its beneficial ownership statement covering common stock of Impinj, Inc., a Seattle-based company whose principal executive offices are located at 400 Fairview Avenue North, Suite 1200, Seattle, WA 98109. Impinj is a provider of RAIN RFID technology, including endpoint ICs, reader ICs, and related software platforms used in item identification and connectivity applications. The filing was signed by Spencer Fleming, Managing Director, on October 27, 2026.

The filing states that the reported holdings reflect securities beneficially owned, or deemed to be beneficially owned, by certain business units of BlackRock, Inc. and its subsidiaries and affiliates, described in the filing as the "Reporting Business Units." The disclosure notes that the statement does not include securities, if any, beneficially owned by other business units whose beneficial ownership is disaggregated from that of the Reporting Business Units in accordance with SEC Release No. 34-39538 (January 12, 1998).

Under Item 6 of the filing, BlackRock disclosed that iShares Core S&P Small-Cap ETF has an interest in the common stock of Impinj, Inc. that is more than five percent of the total outstanding common stock. The filing's certification states that the securities were acquired and are held in the ordinary course of business and were not acquired or held for the purpose of changing or influencing the control of Impinj, Inc.

What Was Disclosed

BlackRock, Inc. disclosed beneficial ownership of 4,495,591 shares of Impinj, Inc. common stock, equal to 14.7% of the class, as of September 30, 2026, with sole voting power over 4,435,487 shares and sole dispositive power over all 4,495,591 shares.