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Impinj (PI) CFO logs RSU vesting, remits shares for tax withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Impinj Inc. chief financial officer Cary Baker reported routine equity compensation activity involving restricted stock units, or RSUs. On June 23, 2026, 1,076 RSUs vested and converted into the same number of common shares. In connection with this vesting, 424 common shares were remitted to Impinj at $125.22 per share to satisfy tax withholding obligations in an exempt transaction under Rule 16b-3(e). Following these transactions, Baker directly owned 89,482 shares of Impinj common stock. The vested RSUs stem from grants of 7,665 RSUs on March 23, 2023 and 9,545 RSUs on March 23, 2024, with one-sixteenth of each grant vesting on the reported date.

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Insider Baker Cary
Role CHIEF FINANCIAL OFFICER
Type Security Shares Price Value
Exercise Restricted Stock Units 479 $0.00 --
Exercise Restricted Stock Units 597 $0.00 --
Exercise Common Stock 479 $0.00 --
Exercise Common Stock 597 $0.00 --
Tax Withholding Common Stock 424 $125.22 $53K
Holdings After Transaction: Restricted Stock Units — 1,438 shares (Direct, null); Common Stock — 89,482 shares (Direct, null)
Footnotes (1)
  1. 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. Each RSU represents a contingent right to receive one share of Impinj common stock. On March 23, 2023, the reporting person was granted 7,665 RSUs. One-sixteenth of these vested on June 23, 2026. On March 23, 2024, the reporting person was granted 9,545 RSUs. One-sixteenth of these vested on June 23, 2026.
Shares remitted for taxes 424 shares at $125.22 Common stock remitted to issuer for tax withholding on Jun. 23, 2026
RSUs vested 1,076 RSUs Converted into common stock on Jun. 23, 2026
Common shares held after 89,482 shares Direct Impinj common stock ownership following transactions
2023 RSU grant size 7,665 RSUs Grant to Cary Baker on Mar. 23, 2023
2024 RSU grant size 9,545 RSUs Grant to Cary Baker on Mar. 23, 2024
Vest fraction One-sixteenth Portion of each RSU grant that vested on Jun. 23, 2026
Restricted Stock Units financial
"Restricted Stock Units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Rule 16b-3(e) regulatory
"In an exempt disposition to the Issuer under Rule 16b-3(e)"
tax withholding obligations financial
"in connection with the satisfaction of tax withholding obligations arising out of the vesting of restricted stock units"
contingent right financial
"Each RSU represents a contingent right to receive one share of Impinj common stock."
vesting financial
"One-sixteenth of these vested on June 23, 2026."
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Baker Cary
(Last)(First)(Middle)
400 FAIRVIEW AVE N. SUITE 1200
(Street)
SEATTLE WASHINGTON 98109
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
IMPINJ INC [ PI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
CHIEF FINANCIAL OFFICER
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/23/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/23/2026M479A$089,482D
Common Stock06/23/2026M597A$090,079D
Common Stock06/23/2026F(1)424D$125.2289,655D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$0(2)06/23/2026M479 (3) (3)Common Stock479$01,438D
Restricted Stock Units$0(2)06/23/2026M597 (4) (4)Common Stock597$04,176D
Explanation of Responses:
1. 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.
2. Each RSU represents a contingent right to receive one share of Impinj common stock.
3. On March 23, 2023, the reporting person was granted 7,665 RSUs. One-sixteenth of these vested on June 23, 2026.
4. On March 23, 2024, the reporting person was granted 9,545 RSUs. One-sixteenth of these vested on June 23, 2026.
/s/ Yukio Morikubo, Attorney in fact for Cary Baker06/24/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Impinj (PI) CFO Cary Baker report?

Cary Baker reported RSU vesting and related tax withholding. On June 23, 2026, 1,076 restricted stock units converted into common shares, and 424 shares were remitted back to Impinj to cover tax withholding obligations under an exempt Rule 16b-3(e) transaction.

How many Impinj (PI) shares does CFO Cary Baker hold after these transactions?

After the June 23, 2026 transactions, Cary Baker directly holds 89,482 Impinj common shares. This figure reflects RSU vesting into common stock and the simultaneous remittance of 424 shares to the company to satisfy associated tax withholding obligations.

Were Impinj (PI) CFO Cary Baker’s Form 4 transactions open-market buys or sells?

The reported transactions were not open-market trades. They reflect RSU vesting that converted into common shares and a related tax-withholding disposition, where 424 shares were remitted to Impinj under Rule 16b-3(e) to satisfy tax obligations from the vesting.

What RSU grants underpin Cary Baker’s June 23, 2026 Impinj (PI) Form 4 filing?

The activity comes from two RSU grants: 7,665 units granted March 23, 2023, and 9,545 units granted March 23, 2024. On June 23, 2026, one-sixteenth of each grant vested, leading to conversion into common stock and related tax-withholding.

What does each Impinj (PI) RSU represent in Cary Baker’s filing?

Each restricted stock unit represents a contingent right to receive one share of Impinj common stock. When RSUs vest, they convert into common shares, which may trigger tax obligations, sometimes settled by remitting a portion of the vested shares back to the issuer.