Impinj Inc — Current Report (Form 8-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 28, 2026

Impinj, Inc.

(Exact name of registrant as specified in its charter)

400 Fairview Avenue North, Suite 1200

Seattle, Washington 98109

(Address of principal executive offices, including zip code)

(206) 517-5300

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

On Thursday, May 28, 2026, the Company held the Annual Meeting at 9:00 a.m., Pacific Time. At the Annual Meeting, 26,882,531 shares of the Company’s common stock, or approximately 88.26% of the 30,459,059 shares of common stock entitled to vote, were present in person or by proxy and voted on the following four proposals, each of which is described in more detail in the Company’s definitive proxy statement for the Annual Meeting filed with the Securities and Exchange Commission on April 16, 2026.

Proposal 1. Election of Directors

The stockholders elected as directors the seven individuals listed below to serve until the Company’s 2027 annual meeting of stockholders, or until their successors are duly elected and qualified. The voting results were as follows:

Proposal 2. Ratification of Appointment of Independent Registered Public Accounting Firm

The stockholders ratified the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. The voting results were as follows:

Proposal 3. Advisory Vote on Compensation of Named Executive Officers (“Say-On-Pay”)

The stockholders approved a proposal for the approval, on an advisory basis, of the compensation of the Company’s named executive officers. The voting results were as follows:

Proposal 4. Approval of the 2026 Equity Incentive Plan

The stockholders approved a proposal for the approval of the Company’s 2026 Equity Incentive Plan. The voting results were as follows:

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.