Ard-Jen Spijkervet - 10 Mar 2026 Form 4 Insider Report for ACCO BRANDS Corp (ACCO)

Role: SVP ACCO Brands & Pres Intl
Signature: /s/ Kathryn D. Ingraham, attorney-in-fact for Ard-Jen Spijkervet
Issuer symbol: ACCO
Transactions as of: 10 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 12 Mar 2026, 18:36:04 UTC
Previous filing: 08 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Spijkervet Ard-Jen	SVP ACCO Brands & Pres Intl	C/O ACCO BRANDS, FOUR CORPORATE DRIVE, LAKE ZURICH	/s/ Kathryn D. Ingraham, attorney-in-fact for Ard-Jen Spijkervet	12 Mar 2026	0002104131

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACCO	Common Stock	Options Exercise		+12,456	+58%	$0.000000^*	33,795	10 Mar 2026	Direct
transaction	ACCO	Common Stock	Tax liability		-6,167	-18%	$3.64^*	27,628	10 Mar 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ACCO	Performance Stock Units (2023-2025)	Award		+12,456		$0.000000^*	12,456	10 Mar 2026	Common Stock	12,456	$0.000000	Direct	F1
transaction	ACCO	Performance Stock Units (2023-2025)	Options Exercise		-12,456	-100%	$0.000000^*	0	10 Mar 2026	Common Stock	12,456	$0.000000	Direct	F1
transaction	ACCO	Restricted Stock Units	Award		+77,031		$0.000000^*	77,031	11 Mar 2026	Common Stock	77,031	$0.000000	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects performance stock units ("PSUs") granted under the Issuer's Incentive Plan that were earned by the Reporting Person during a three-year performance period. Subject to the Reporting Person's continued employment, earned PSUs become eligible for settlement into shares of common stock upon the completion of the final performance period in the three-year cycle.
F2	Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock on March 11, 2029, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.