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PI SEC Filing News — Impinj, Inc.

Latest SEC filings for Impinj, Inc. (PI) explained in plain English: insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). Sourced directly from SEC EDGAR.

What you’re looking at: Each item below is parsed from an actual SEC filing. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

Gibson Daniel Patrick (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Gibson Daniel Patrick (Director) Shares: 3,114
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

Valdez Arthur L Jr (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Valdez Arthur L Jr (Director)
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

WASHINGTON MIRON (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: WASHINGTON MIRON (Director) Shares: 3,114
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

PADVAL UMESH (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: PADVAL UMESH (Director) Shares: 3,114
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

Sanghi Steve (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Sanghi Steve (Director) Shares: 3,425
Form 4 Tax / Compensation Filing 2026-05-29

PI insider Form 4 filed for equity award, exercise, or tax withholding

Rao Meera (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Rao Meera (Director) Shares: 3,114
Form 8-K Material Company Update 2026-05-29

PI filed 8-K — material company event

IMPINJ INC filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer

Filing: 8-K (Material Event)
Form 4 Insider Selling 2026-05-12

PI insider SYLEBRA CAPITAL LLC (Director) sold 73,810 shares (~$11.31M)

SYLEBRA CAPITAL LLC, listed as Director at IMPINJ INC, reported an open-market sale of 73,810 PI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: SYLEBRA CAPITAL LLC (Director) Shares: 73,810 Est. Value: $11.31M
Form 4 Insider Selling 2026-05-11

PI insider SYLEBRA CAPITAL LLC (Director) sold 36,171 shares (~$5.52M)

SYLEBRA CAPITAL LLC, listed as Director at IMPINJ INC, reported an open-market sale of 36,171 PI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: SYLEBRA CAPITAL LLC (Director) Shares: 36,171 Est. Value: $5.52M
Form 10-Q Quarterly Report 2026-04-29

PI filed Quarterly Report (10-Q)

IMPINJ INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
Form 8-K Material Company Update 2026-04-29

PI filed 8-K — material company event

IMPINJ INC filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer

Filing: 8-K (Material Event)
Form 4 Tax / Compensation Filing 2026-03-24

PI insider Form 4 filed for equity award, exercise, or tax withholding

Baker Cary (CHIEF FINANCIAL OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Baker Cary (CHIEF FINANCIAL OFFICER) Shares: 2,590
Form 4 Tax / Compensation Filing 2026-03-24

PI insider Form 4 filed for equity award, exercise, or tax withholding

DIORIO CHRIS PH.D. (Director, CHIEF EXECUTIVE OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: DIORIO CHRIS PH.D. (Director, CHIEF EXECUTIVE OFFICER) Shares: 7,853
Form 8-K Material Company Update 2026-03-16

PI filed 8-K — material company event

IMPINJ INC filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer

Filing: 8-K (Material Event)
Form 4 Tax / Compensation Filing 2026-02-23

PI insider Form 4 filed for equity award, exercise, or tax withholding

Baker Cary (CHIEF FINANCIAL OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Baker Cary (CHIEF FINANCIAL OFFICER) Shares: 10,742
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