Impinj (NASDAQ: PI) CEO Chris Diorio reports 10,000-share gift

Rhea-AI Filing Summary

Impinj CEO Chris Diorio reported a bona fide gift of 10,000 shares of common stock on July 13, 2026, at $0.0000 per share, made pursuant to a Rule 10b5-1 trading plan adopted on February 23, 2026. After the gift he holds 372,145 shares directly and reports 199,362 shares held indirectly by DFT L.L.C.

Insider Trade Summary 10b5-1

10,000 shares gifted

Mixed 2 txns

Insider DIORIO CHRIS PH.D.

Role CHIEF EXECUTIVE OFFICER

Type	Security	Shares	Price	Value
Gift	Common Stock	10,000	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 372,145 shares (Direct); Common Stock — 199,362 shares (Indirect, by DFT L.L.C.)

Footnotes (1)

1. [object Object]

Key Figures

Shares gifted: 10,000 shares Gift price per share: $0.0000 per share Direct holdings after transaction: 372,145 shares +3 more

6 metrics

Shares gifted 10,000 shares Bona fide gift of common stock on July 13, 2026

Gift price per share $0.0000 per share Reported transaction price for the 10,000-share gift

Direct holdings after transaction 372,145 shares Chris Diorio’s directly held Impinj common stock after the gift

Indirect holdings after transaction 199,362 shares Impinj common shares reported as held indirectly by DFT L.L.C.

Rule 10b5-1 plan adoption date February 23, 2026 Date the trading plan governing the disposition was adopted

Gift transactions in filing 1 transaction Form 4 transaction summary shows one bona fide gift (code G)

Key Terms

Rule 10b5-1 trading plan, bona fide gift, indirect

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan adopted on February 23, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

bona fide gift regulatory

"transaction_code_description: "Bona fide gift" for the common stock entry."

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

indirect financial

"ownership_type: "indirect", nature_of_ownership: "by DFT L.L.C.""

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/14/2026 - 04:36 PM Accepted by SEC EDGAR 07/14/2026 - 04:36 PM Learn about SEC filing dates

FAQ

What insider transaction did Impinj (PI) report for CEO Chris Diorio?

Impinj reported that CEO Chris Diorio made a bona fide gift of 10,000 shares of common stock on July 13, 2026. The transaction was filed as a Form 4 and categorized with code G, indicating a gift disposition rather than an open-market sale or purchase.

How many Impinj (PI) shares did Chris Diorio hold after the reported gift?

After the gift, Chris Diorio held 372,145 Impinj common shares directly. He also reported 199,362 shares held indirectly by DFT L.L.C., reflecting both his direct personal stake and additional shares reported through an affiliated entity.

What was the price per share for Chris Diorio’s Impinj (PI) stock gift?

The reported bona fide gift of Impinj common stock by Chris Diorio was made at $0.0000 per share. This zero-dollar price is consistent with a gift disposition, where shares are transferred without receiving cash consideration in return.

Was Chris Diorio’s Impinj (PI) stock gift under a Rule 10b5-1 trading plan?

Yes. The footnote states the disposition was effected under a Rule 10b5-1 trading plan adopted on February 23, 2026. Such plans pre-arrange transactions, indicating the timing of this gift was set in advance rather than decided spontaneously.

How many Impinj (PI) shares did DFT L.L.C. hold indirectly for Chris Diorio?

A separate Form 4 entry shows 199,362 Impinj common shares reported as held indirectly by DFT L.L.C.. This reflects an additional ownership position associated with Diorio, distinct from his directly held 372,145 shares after the reported gift.

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).

X

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^*

DIORIO CHRIS PH.D.

(Last) (First) (Middle)

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
X	Officer (give title below)		Other (specify below)
	CHIEF EXECUTIVE OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/13/2026

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	07/13/2026		G(1)		10,000	D	$0	372,145	D
Common Stock								199,362	I	by DFT L.L.C.

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

Explanation of Responses:

1. The disposition of shares reported by Dr. Diorio was effected pursuant to a Rule 10b5-1 trading plan adopted on February 23, 2026.

	/s/ Yukio Morikubo, Attorney in fact for Chris Diorio	07/14/2026
	** 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)