Impinj (PI) director Steve Sanghi exercises 3,425 RSUs and receives 2,085 new units

Rhea-AI Filing Summary

Impinj director Steve Sanghi reported routine equity compensation activity. On May 28, 2026, he exercised 3,425 restricted stock units (RSUs) into an equal number of Impinj common shares, increasing his direct common stock holdings to 13,274 shares. The filing also shows a new grant of 2,085 RSUs, each representing a contingent right to receive one share of common stock, which will fully vest on May 28, 2027. Separately, 40,200 common shares are held indirectly through the Sanghi Family Limited Partnership.

Insider Trade Summary

3,425 shares exercised/converted

Mixed 4 txns

Insider Sanghi Steve

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	3,425	$0.00	--
Grant/Award	Restricted Stock Units	2,085	$0.00	--
Exercise	Common Stock	3,425	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 13,274 shares (Direct, null); Common Stock — 40,200 shares (Indirect, By Sanghi Family Limited Partnership)

Footnotes (1)

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock. On June 5, 2025, the reporting person was granted 3,425 RSUs. These RSUs fully vested on May 28, 2026. The restricted stock units will fully vest on May 28, 2027.

Key Figures

RSUs exercised: 3,425 units New RSU grant: 2,085 units Direct common shares after: 13,274 shares +3 more

6 metrics

RSUs exercised 3,425 units Converted into 3,425 Impinj common shares on May 28, 2026

New RSU grant 2,085 units Each RSU equals one Impinj common share; vests May 28, 2027

Direct common shares after 13,274 shares Direct Impinj common stock holdings following the RSU exercise

Indirect common shares 40,200 shares Held through the Sanghi Family Limited Partnership

RSU vesting date (prior grant) May 28, 2026 3,425 RSUs granted June 5, 2025 fully vested on this date

RSU vesting date (new grant) May 28, 2027 Full vesting date for the new 2,085 RSUs

Key Terms

Restricted Stock Units, contingent right, derivative security, indirect ownership

4 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock."

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.

contingent right financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock."

derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

indirect ownership financial

"nature_of_ownership": "By Sanghi Family Limited Partnership""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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^*

Sanghi Steve

(Last) (First) (Middle)

C/O IMPINJ, INC.

400 FAIRVIEW AVENUE NORTH, 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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/28/2026		M		3,425	A	$0	13,274	D
Common Stock								40,200	I	By Sanghi Family Limited Partnership

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0(1)	05/28/2026		M			3,425	(2)	(2)	Common Stock	3,425	$0	0	D
Restricted Stock Units	$0(1)	05/28/2026		A		2,085		(3)	(3)	Common Stock	2,085	$0	2,085	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

2. On June 5, 2025, the reporting person was granted 3,425 RSUs. These RSUs fully vested on May 28, 2026.

3. The restricted stock units will fully vest on May 28, 2027.

	/s/ Yukio Morikubo, Attorney in fact for Steve Sanghi	05/29/2026
	** Signature of Reporting Person	Date
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)

FAQ

What insider transactions did Impinj (PI) director Steve Sanghi report?

Steve Sanghi reported exercising RSUs and receiving a new RSU grant. He converted 3,425 restricted stock units into common shares and was granted 2,085 new RSUs, alongside reporting indirect holdings through the Sanghi Family Limited Partnership.

How many Impinj (PI) shares does Steve Sanghi hold directly after this Form 4?

After these transactions, Steve Sanghi directly holds 13,274 Impinj common shares. This reflects the exercise of 3,425 restricted stock units into common stock on May 28, 2026, as reported in the Form 4 filing.

What new restricted stock units did Impinj (PI) grant to Steve Sanghi?

Impinj granted Steve Sanghi 2,085 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of common stock, and this new RSU award will fully vest on May 28, 2027, subject to the grant terms.

When did Steve Sanghi’s prior Impinj (PI) RSU grant fully vest?

A prior grant of 3,425 RSUs fully vested on May 28, 2026. Those RSUs were originally granted on June 5, 2025, and were converted into 3,425 Impinj common shares as reflected in the Form 4 transactions.

What indirect Impinj (PI) share holdings are associated with Steve Sanghi?

The filing shows 40,200 Impinj common shares held indirectly. These shares are owned through the Sanghi Family Limited Partnership, which is listed as the nature of indirect ownership in the Form 4 disclosure.