Welcome to our dedicated page for Impinj SEC filings (Ticker: PI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Impinj, Inc. filings document the formal disclosures of a public RAIN RFID technology company, including operating results, preliminary financial information, non-GAAP reconciliations and risk-factor references tied to its endpoint IC and connectivity platform business.
Material-event reports cover quarterly results, capital-structure disclosures, material agreements and governance changes such as board composition. Proxy materials disclose director elections, executive compensation, equity awards, pay-versus-performance information and other stockholder voting matters relevant to the company’s corporate governance.
IMPINJ Inc. director reporting entity Sylebra Capital LLC reported open-market sales of common stock held for its advisory clients. The filing shows three indirect sales totaling 64,633 shares on June 8–9, 2026 at prices between $125.9651 and $130.0685 per share.
After these transactions, 775,943 shares of IMPINJ common stock are reported as indirectly held. The securities are held by Sylebra-managed funds and other advisory clients, and Sylebra entities and their principal disclaim beneficial ownership except to the extent of any pecuniary interest.
Entities advised by Sylebra Capital LLC reported selling Impinj common stock in open-market transactions. On 2026-06-09, they sold 12,105 shares at an average price of $127.3577 per share. On 2026-06-08, they sold 33,000 shares at $130.0685 and 12,528 shares at $125.9651 per share. After these sales, 782,943 shares of Impinj common stock remained indirectly held. The shares are held by Sylebra Capital Partners Master Fund, Menlo Master Fund and other advisory clients, and Sylebra entities and Daniel Patrick Gibson may be deemed to share voting and dispositive power but disclaim beneficial ownership except to the extent of any pecuniary interest.
IMPINJ INC director‑affiliated funds reported selling common stock. On 2026-06-05, entities advised by SYLEBRA CAPITAL LLC executed two open-market sales totaling 47,479 shares of Impinj common stock, at weighted prices of about $122.50 and $128.87 per share.
After these trades, the filing shows indirect holdings of 876,453 shares. The shares are held by Sylebra-managed funds and other advisory clients, and Sylebra entities and director Daniel Patrick Gibson disclaim beneficial ownership except to the extent of any pecuniary interest.
IMPINJ INC chief executive Chris Diorio reported an estate-planning share exchange involving 180,000 shares of common stock with a family trust. On the transfer date, he received 180,000 shares from the 2012 Diorio Descendants Irrevocable Trust and simultaneously transferred 180,000 shares to the same trust.
The exchange used an estimated per-share value of $156.675, based on the average high and low trading prices that day, and was carried out under a pre-arranged Rule 10b5-1 trading plan adopted in February 2026. The filing also notes indirect ownership of 199,362 shares held through DFT L.L.C.
Sylebra-affiliated investment funds sold Impinj common stock in the open market. On this Form 4, entities advised by Sylebra Capital LLC and Sylebra Capital Limited disposed of 33,412 shares of Impinj, Inc. common stock at an average price of $136.8435 per share.
After this transaction, the advisory clients, including Sylebra Capital Partners Master Fund and Sylebra Capital Menlo Master Fund, held 888,055 Impinj shares indirectly. Sylebra and related entities disclaim beneficial ownership of these securities except to the extent of any pecuniary interest.
Sylebra Capital–advised funds reported open-market sales of Impinj common stock. On June 2, entities advised by Sylebra sold 38,724 shares at an average price of $142.3145 per share. On June 3, they sold an additional 6,313 shares at $139.1663 per share.
After these transactions, the filing shows 921,467 Impinj shares indirectly held. The shares are owned by Sylebra Capital Partners Master Fund, Sylebra Capital Menlo Master Fund, and other advisory clients, and Sylebra entities and Daniel Patrick Gibson disclaim beneficial ownership except to the extent of any pecuniary interest.
Sylebra Capital LLC, as a reporting person associated with various investment entities, reported open-market sales of Impinj common stock held for advisory clients. On May 29, entities linked to Sylebra sold 48,504 shares at an average price of $150.7755 per share. On June 1, they sold an additional 7,163 shares at an average price of $144.2911. Following these transactions, the advisory clients collectively held 966,504 shares of Impinj common stock indirectly. The footnotes state that the shares are held by Sylebra Capital Partners Master Fund, Ltd., Sylebra Capital Menlo Master Fund, and other advisory clients, and that Sylebra entities and Daniel Patrick Gibson disclaim beneficial ownership except to the extent of any pecuniary interest.
Impinj director Daniel Patrick Gibson reported updates to his equity holdings. The filing shows indirect ownership of 1,022,171 shares of Impinj common stock through investment entities over which he may be deemed to share voting and dispositive power.
Gibson exercised previously granted restricted stock units, converting 3,114 RSUs into 3,114 shares of common stock at a stated price of $0.00 per share, resulting in 23,010 directly held shares of common stock after the transaction. He also received a new award of 1,896 RSUs, each representing one share of common stock, which will fully vest on May 28, 2027. Earlier RSUs granted on June 5, 2025 fully vested on May 28, 2026 before being settled into common shares.
Impinj Inc. director Arthur L. Valdez Jr. received a grant of 1,896 restricted stock units (RSUs), each representing a right to receive one share of Impinj common stock. These RSUs were awarded at no cash exercise price and will fully vest on May 28, 2027. Following this compensation-related grant, Valdez holds 1,896 derivative-linked shares directly.
Impinj director Washington Miron reported equity compensation activity involving restricted stock units (RSUs). On May 28, 2026, 3,114 RSUs granted on June 5, 2024 fully vested and were exercised into 3,114 shares of common stock, bringing his direct common share holdings to 5,154.
On the same date, he also received a new grant of 1,896 RSUs, each representing a right to one share of common stock, which will fully vest on May 28, 2027. The filing shows only acquisitions and no share sales.