Baker Cary 4

4 · IMPINJ INC · Filed Mar 24, 2026

AI-generated summary of this filing

Updated Mar 24, 2026

Impinj (PI) CFO Cary Baker Exercises RSUs; Shares Remitted for Taxes

What Happened

Cary Baker, Chief Financial Officer of Impinj, had restricted stock units (RSUs) vest on March 23, 2026. The filing shows conversions/exercises of 782, 479 and 597 derivative units (vested RSUs) and a grant/award record for 7,627 shares, totaling 9,485 shares acquired at $0.00 per share (these reflect RSU vesting/conversion). To satisfy tax withholding obligations, 732 shares were remitted to the issuer at a reported withholding price of $101.17 per share, totaling approximately $74,056.

Key Details

Transaction date: March 23, 2026; Form 4 filed March 24, 2026 (timely).
Items reported:
- Exercise/conversion (M): 782 shares @ $0.00 (acquired)
- Exercise/conversion (M): 479 shares @ $0.00 (acquired)
- Exercise/conversion (M): 597 shares @ $0.00 (acquired)
- Grant/award (A): 7,627 shares @ $0.00 (acquired)
- Tax withholding (F): 732 shares disposed @ $101.17 = $74,056 (shares remitted to issuer)
Total shares acquired via vesting/conversion shown: 9,485 shares. Shares remitted for taxes: 732 shares.
Footnotes: Each RSU equals a contingent right to one share (F2). The vested amounts match 1/16th vesting of RSU grants from 2022, 2023 and 2024 (F3–F5). The tax-remittance was an exempt disposition to the issuer under Rule 16b-3(e) (F1).
Shares owned after the transaction: not specified in the information provided in this summary.

Context

These entries reflect routine RSU vesting and conversion to shares (derivative exercises at $0) rather than an open-market purchase or sale. The remittance of shares to the company to cover tax withholding is common and is noted as an exempt disposition under Rule 16b-3(e). This filing does not indicate a separate open-market sale or purchase.

Form 4

Period: 2026-03-23

CHIEF FINANCIAL OFFICER

Transactions

Exercise/Conversion
Common Stock
2026-03-23+782→ 88,659 total
Exercise/Conversion
Common Stock
2026-03-23+479→ 89,138 total
Exercise/Conversion
Common Stock
2026-03-23+597→ 89,735 total
Tax Payment
Common Stock
[F1]
2026-03-23$101.17/sh−732$74,056→ 89,003 total
Exercise/Conversion
Restricted Stock Units
[F2][F3]
2026-03-23−782→ 0 total
Exercise: $0.00→ Common Stock (782 underlying)
Exercise/Conversion
Restricted Stock Units
[F2][F4]
2026-03-23−479→ 1,917 total
Exercise: $0.00→ Common Stock (479 underlying)
Exercise/Conversion
Restricted Stock Units
[F2][F5]
2026-03-23−597→ 4,773 total
Exercise: $0.00→ Common Stock (597 underlying)
Award
Restricted Stock Units
[F2][F6]
2026-03-23+7,627→ 7,627 total
Exercise: $0.00→ Common Stock (7,627 underlying)

Footnotes (6)

[F1]In an exempt disposition to the Issuer under Rule 16b-3(e), the Reporting Person remitted shares to the Issuer in connection with the satisfaction of tax withholding obligations arising out of the vesting of restricted stock units, or RSUs.
[F2]Each RSU represents a contingent right to receive one share of Impinj common stock.
[F3]On March 23, 2022, the reporting person was granted 12,500 RSUs. One-sixteenth of these vested on March 23, 2026.
[F4]On March 23, 2023, the reporting person was granted 7,665 RSUs. One-sixteenth of these vested on March 23, 2026.
[F5]On March 23, 2024, the reporting person was granted 9,545 RSUs. One-sixteenth of these vested on March 23, 2026.
[F6]One-fourth of the shares subject to the grant shall vest on March 23, 2027, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the reporting person's continued service to the Issuer through such date.

Signature

/s/ Yukio Morikubo, Attorney in fact for Cary Baker|2026-03-24

1 file