ACCO director awarded 6,350 RSUs via dividend

ACCO Brands director E. Mark Rajkowski received a grant of 6,350.2 Restricted Stock Units (RSUs) on common stock.

Rhea-AI Filing Summary

ACCO Brands director E. Mark Rajkowski received a grant of 6,350.2 Restricted Stock Units (RSUs) on common stock. These RSUs were acquired under dividend equivalent provisions tied to his already earned and outstanding RSU awards and are a compensation-related award, not a market purchase.

The RSUs were granted under ACCO Brands' Incentive Plan and have been deferred under its Deferred Compensation Plan for Non-Employee Directors. They are either immediately vested or vest one year after grant and convert into common shares upon the earlier of his death, disability, or end of board service. Following this grant, his RSU balance reported in this filing is 256,970.5 units.

Insider Trade Summary

Grant/Award: 6,350.2 shares

Grant/Award 1 txn

Insider RAJKOWSKI E MARK

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	6,350.2	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 256,970.5 contracts (Direct)

Footnotes (2)

1. F1. Represents Restricted Stock Units (RSUs) acquired pursuant to the dividend equivalent provisions of the Reporting Person's earned and outstanding RSU awards.
2. F2. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. RSUs are immediately vested or vest on the one year anniversary of the grant date, but in either case, have been deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors. Each RSU represents the right to receive one share of the Issuer's common stock upon the earlier of the date of the reporting person's death or disability, or cessation of service as a member of the Board of Directors.

FAQ

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What did ACCO (ACCO) director E. Mark Rajkowski report in this Form 4?

He reported acquiring 6,350.2 Restricted Stock Units (RSUs) tied to ACCO Brands common stock. These RSUs arose from dividend equivalent provisions on his earned and outstanding RSU awards and increase his total reported RSU holdings to 256,970.5 units.

How were the 6,350.2 RSUs for ACCO (ACCO) director E. Mark Rajkowski generated?

The 6,350.2 RSUs were acquired through dividend equivalent provisions attached to his existing, earned RSU awards. Instead of receiving cash dividends, he received additional RSUs that mirror dividend payments on ACCO Brands’ common stock held through prior RSU grants.

When do E. Mark Rajkowski’s new ACCO (ACCO) RSUs vest and pay out?

The RSUs are either immediately vested or vest on the one-year anniversary of the grant date. However, payout in common stock is deferred until the earlier of his death, disability, or cessation of service as a member of ACCO Brands’ Board of Directors.

Are the 6,350.2 ACCO (ACCO) RSUs a market purchase by the director?

No, they are not a market purchase. The filing classifies the transaction as a grant or award acquisition of RSUs, with a price per unit of $0.0000, reflecting compensation awarded under ACCO Brands’ incentive and deferred compensation plans for non-employee directors.

How many ACCO (ACCO) Restricted Stock Units does E. Mark Rajkowski hold after this transaction?

After this transaction, he holds 256,970.5 RSUs according to the filing. This total includes the newly acquired 6,350.2 RSUs and represents his direct RSU position that may settle in ACCO Brands common stock when distribution conditions are met.

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Accepted by SEC EDGAR 03/27/2026 - 06:07 PM EDT Learn about SEC filing dates

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^*

RAJKOWSKI E MARK

(Last) (First) (Middle)

C/O ACCO BRANDS CORPORATION

(Street)

LAKE ZURICH ILLINOIS 60047

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ACCO BRANDS Corp [ ACCO ]

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)
03/26/2026

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

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	03/26/2026		A		6,350.2(1)		(2)	(2)	Common Stock	6,350.2	$0	256,970.5	D

Explanation of Responses:

1. Represents Restricted Stock Units (RSUs) acquired pursuant to the dividend equivalent provisions of the Reporting Person's earned and outstanding RSU awards.

2. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. RSUs are immediately vested or vest on the one year anniversary of the grant date, but in either case, have been deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors. Each RSU represents the right to receive one share of the Issuer's common stock upon the earlier of the date of the reporting person's death or disability, or cessation of service as a member of the Board of Directors.

	/s/ Kathryn D. Ingraham, Attorney-in-fact for E. Mark Rajkowski	03/27/2026
	** 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)