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. filed a current report to furnish a press release announcing its financial results for the fourth quarter and full year ended December 31, 2025. The press release, titled “Impinj Reports Fourth Quarter and Full Year 2025 Financial Results,” is attached as Exhibit 99.1.
The company specifies that this information, including the exhibit, is being furnished rather than filed, meaning it is not subject to certain liability provisions of the Exchange Act and is not automatically incorporated into other Securities Act or Exchange Act filings.
Impinj, Inc. filed a current report describing that it has released preliminary, unaudited financial information for the fourth quarter ended December 31, 2025. The company shared this early look at revenue and adjusted EBITDA in a press release titled “Impinj Announces Preliminary Fourth-Quarter 2025 Revenue and Adjusted EBITDA Ahead of Participation at 28th Annual Needham Growth Conference,” issued on January 13, 2026 and attached as an exhibit.
The company notes that its actual fourth-quarter 2025 results are still being finalized and that the preliminary figures may differ materially from management’s expectations once the review is complete. The press release and the related information are furnished rather than filed, which means they are not subject to certain Exchange Act liabilities and are not automatically incorporated into other securities law filings.
Impinj Inc director-linked investment entities reported three dispositions of common stock in December 2025. Transactions on 12/11, 12/12 and 12/15/2025 covered 95,345, 50,573 and 134,629 shares, respectively, at prices of $152.87, $146.62 and $150.36.
After the 12/15/2025 transaction, 1,132,152 shares were reported as beneficially owned indirectly. The filing explains that Sylebra Capital entities act as advisers or manager to the funds holding the shares, and together with director Daniel Patrick Gibson they may be deemed to share voting and dispositive power but disclaim beneficial ownership except to any pecuniary interest.
Impinj, Inc. director-affiliated investment entities reported open-market sales of the company’s common stock. On 12/03/2025, they sold 41,221 shares at $167.97 per share. Additional sales included 3,167 shares at $160.59 on 12/04/2025 and 1,373 shares at $161.04 on 12/05/2025. After these transactions, 1,499,837 shares of Impinj common stock were reported as beneficially owned indirectly. The filing explains that the shares are held by Sylebra-managed funds and advisory clients, and the Sylebra entities and Daniel Patrick Gibson, a director of Impinj, may be deemed to share voting and dispositive power but disclaim beneficial ownership except for any pecuniary interest.
Impinj Inc. (PI) chief financial officer transaction was reported on a Form 4. The reporting person, serving as chief financial officer, disclosed a transaction in Impinj common stock dated 11/25/2025 with transaction code G, indicating a transfer such as a gift. The filing shows 1,000 shares of common stock were disposed of at a price of $0. After this transaction, the officer beneficially owns 80,479 shares of Impinj common stock in direct ownership.
Impinj, Inc. (PI) had a group of affiliated investment entities and their principal file a Form 4 reporting open‑market sales of its common stock. On 11/20/2025, they reported selling 8,081 shares at an average price of $156.3249 per share. On 11/21/2025, they reported selling an additional 3,046 shares at an average price of $155.0973 per share.
Following these transactions, the group reported 1,753,445 shares of Impinj common stock beneficially owned in an indirect capacity. The filing explains that various Sylebra entities act as investment managers or advisers to funds that hold the shares and that Daniel Patrick Gibson controls those entities. The reporting persons state they may be deemed to share voting and dispositive power over the shares but disclaim beneficial ownership beyond any pecuniary interest.
Impinj, Inc. (PI) reported an insider stock gift by its Chief Executive Officer and director. On 11/19/2025, the reporting person donated 7,000 shares of Impinj common stock as a gift to a donor advised fund, recorded at a price of $0 per share because it was a charitable transfer rather than a sale. Following this transaction, the reporting person beneficially owned 371,005 shares of common stock directly and 199,362 shares indirectly through DFT L.L.C.
Impinj, Inc. (PI) insiders affiliated with Sylebra reported a sale of 30,000 shares of common stock at $155.63 on 11/11/2025, per a Form 4 filing. Following the transaction, the group reported 1,768,344 shares beneficially owned on an indirect basis.
Footnotes state the securities are held by Sylebra-managed funds and advisory clients. Daniel Patrick Gibson is noted as a director, and the reporting persons disclaim beneficial ownership except to the extent of any pecuniary interest.
Impinj (PI) reporting persons affiliated with Sylebra disclosed an open‑market sale of 6,246 shares of common stock at $162.16 on 11/07/2025. After the transaction, they reported 1,798,344 shares beneficially owned in indirect form.
The filing was made by more than one reporting person. Footnotes state the shares are held by Sylebra-managed funds, with Sylebra entities and Daniel Patrick Gibson (a board member) disclaiming beneficial ownership except to the extent of any pecuniary interest.
Impinj, Inc. (PI) — Form 4 insider transaction. Reporting persons affiliated with Sylebra disclosed a sale of Impinj common stock on 11/06/2025. The filing reports a disposition (Code S) of 23,157 shares at a price of $171.95 per share.
Following the transaction, 1,804,590 shares were reported as beneficially owned on an indirect basis, as noted in the filing. Footnotes state the securities are held by Sylebra-managed funds and advisory clients, that certain Sylebra entities may be deemed to share voting and dispositive power, and that beneficial ownership is disclaimed except to the extent of any pecuniary interest. Daniel Patrick Gibson is identified as a director of Impinj.