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 turns pallets, surgical instruments, and retail t-shirts into chatty data points, yet its SEC paperwork is far less conversational. A single 10-K can exceed 250 pages of semiconductor supply-chain nuances, IoT licensing terms, and customer-concentration tables—challenging even seasoned analysts who just want clear answers.
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Chris Diorio, Director and Chief Executive Officer of Impinj Inc. (PI), reported sales of common stock effected under a Rule 10b5-1 trading plan on September 15-16, 2025. The filing lists ten sell transactions that aggregate to 9,096 shares sold at weighted-average prices for each batch ranging from about $179.26 up to $191.76 as detailed in the form. Following these transactions, the filing shows Mr. Diorio directly beneficially owns 297,013 shares and indirectly owns 199,362 shares through DFT L.L.C.
The form includes explanatory notes that the reported amounts and prices reflect aggregated multiple transactions within specified per-share price ranges and that full per-transaction detail is available on request.
Chris Diorio, Chief Executive Officer and Director of Impinj, Inc. (PI), reported a gift disposition of 30,000 common shares on 09/12/2025 under Code G(1). The filing states this transfer is permitted by a lock-up agreement tied to the companys September 2025 0% Convertible Senior Notes offering, allowing Diorio to gift up to 30,000 shares during the lock-up period. After the reported transaction, Diorio beneficially owns 306,109 shares directly and 199,362 shares indirectly via DFT L.L.C. The Form 4 was signed by an attorney in fact on 09/16/2025.
Sylebra Capital and affiliated entities reported owning 1,829,260 shares of Impinj Inc. common stock, equal to 6.29% of the class. This filing is an amendment to a prior Schedule 13D and reflects a disposal of securities executed in the ordinary course of portfolio management. The filing names four reporting persons — Sylebra Capital LLC, Sylebra Capital Ltd, Sylebra Capital Management, Ltd and Daniel Patrick Gibson — and states that they share voting and dispositive power over the reported shares through affiliated investment entities. The amendment attaches a Joint Filing Agreement and otherwise leaves prior Schedule 13D disclosures unchanged.
Impinj, Inc. Form 144 notice shows a proposed sale of 300,000 shares of common stock through Morgan Stanley & Co. LLC on NASDAQ, with an aggregate market value of $58,873,670. The filing reports 1,829,260 shares outstanding, so the proposed sale represents approximately 16.4% of outstanding shares. The securities were acquired on 03/01/2018 via open market purchases and payment was made DVP–Cash. No sales by the reporting person were reported in the past three months. The filer certifies they are unaware of undisclosed material adverse information about the issuer.
Chris Diorio, Ph.D., CEO and director of Impinj, Inc. (PI), reported the sale of 10,000 shares of Impinj common stock under a Rule 10b5-1 trading plan effective May 28, 2025. The Form 4 shows multiple off‑market sales on September 8–9, 2025 with weighted‑average prices reported across several price bands from about $190.19 to $198.05. After the reported dispositions, Dr. Diorio is shown as beneficially owning 336,109 shares directly and 199,362 shares indirectly through DFT L.L.C., according to the filing.
Chris Diorio, Ph.D., Chief Executive Officer and Director of Impinj, Inc. (PI), reported sales of 10,000 shares of common stock under a Rule 10b5-1 trading plan. The transactions occurred on September 2–3, 2025 and were effected under a trading plan effective May 28, 2025. The sales were reported as multiple transactions with weighted-average prices reported in ranges from $180.00 to $190.405 per share across the trades. Following the reported transactions, Dr. Diorio is shown as beneficially owning 346,109 shares directly and 199,362 shares indirectly (via DFT L.L.C.), for a combined total of 545,471 shares. The Form 4 was signed by an attorney-in-fact on behalf of Dr. Diorio on September 3, 2025.
Insider Form 4 — Impinj, Inc. (PI) Dr. Chris Diorio, CEO and Director, reported preplanned sales under a Rule 10b5-1 trading plan effective May 28, 2025. The filing discloses a total of 10,000 shares sold across transactions on August 28–29, 2025, in multiple tranches with reported weighted-average prices by tranche ranging approximately from $185.93 to $190.79. After these disposals Dr. Diorio directly beneficially owned 356,109 shares and indirectly owned 199,362 shares through DFT L.L.C. The filing includes explanations that sales were executed pursuant to the 10b5-1 plan and provides price ranges for the individual tranches.
Form 144 filed for Impinj, Inc. (PI) reporting a proposed sale of 39,096 common shares through Charles Schwab with an aggregate market value of $7,341,990.00, intended to be sold on 08/28/2025 on NASDAQ. The shares match equity awards that vested between 02/28/2020 and 01/01/2021, acquired from Impinj, Inc. via performance stock lapse and restricted stock lapse. The filer states there were no sales in the past three months and certifies no undisclosed material adverse information. The notice indicates the sale is being made pursuant to Rule 144.
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