ACCO director awarded 32,809 RSUs in equity grant

Simermeyer Elizabeth A reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Simermeyer Elizabeth A reported acquisition or exercise transactions in this Form 4 filing.

ACCO BRANDS Corp director Elizabeth A. Simermeyer received a grant of 32,809 Restricted Stock Units (RSUs). The award, granted as of May 19, 2026, is compensation under the company’s Incentive Plan and increases her directly held RSU-based position to 109,655.5 units.

The RSUs either vest immediately or on the one-year anniversary of the grant date, but in both cases are deferred under ACCO’s Deferred Compensation Plan for Non-Employee Directors. Each RSU will be settled in one share of ACCO common stock upon the earlier of her death, disability, or when she ceases serving on the Board.

Insider Trade Summary

Grant/Award: 32,809 shares

Grant/Award 1 txn

Insider Simermeyer Elizabeth A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	32,809	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 109,655.5 contracts (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

RSUs granted: 32,809 units Holdings after grant: 109,655.5 units Transaction price: $0.00 per unit +1 more

4 metrics

RSUs granted 32,809 units Restricted Stock Units granted on May 19, 2026

Holdings after grant 109,655.5 units Total RSU-based position following the award

Transaction price $0.00 per unit Grant/award acquisition, no cash paid by director

Underlying shares 32,809 shares Each RSU corresponds to one share of common stock

Key Terms

Restricted Stock Units, Incentive Plan, Deferred Compensation Plan for Non-Employee Directors, cessation of service

4 terms

Restricted Stock Units financial

"Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan."

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.

Incentive Plan financial

"RSUs granted under the Issuer's Incentive Plan."

Deferred Compensation Plan for Non-Employee Directors financial

"have been deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors."

cessation of service financial

"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

What insider transaction did ACCO (ACCO) report for Elizabeth A. Simermeyer?

ACCO BRANDS reported that director Elizabeth A. Simermeyer received a grant of 32,809 Restricted Stock Units as compensation. These RSUs are tied to the company’s common stock and increase her total RSU-based position to 109,655.5 units following the award.

How many Restricted Stock Units did the ACCO director hold after this Form 4 transaction?

After the transaction, the director held 109,655.5 Restricted Stock Units. This figure reflects the new grant of 32,809 RSUs added to her prior balance, showing the scale of her deferred equity-based compensation linked to ACCO BRANDS common stock.

When do the newly granted ACCO (ACCO) RSUs for the director vest and pay out?

The RSUs either vest immediately or on the one-year anniversary of the grant date. However, they are deferred and pay out in ACCO common shares only upon the director’s death, disability, or when her service on the Board of Directors ends.

Are the ACCO director’s 32,809 RSUs a market purchase or a compensation award?

The 32,809 Restricted Stock Units are a compensation award, not a market purchase. They were granted under ACCO’s Incentive Plan and Deferred Compensation Plan for Non-Employee Directors as part of her role on the Board rather than open-market buying.

What does each ACCO (ACCO) Restricted Stock Unit granted to the director represent?

Each Restricted Stock Unit represents the right to receive one share of ACCO BRANDS common stock. The shares are delivered later, upon the earlier of the director’s death, disability, or cessation of service as a Board member, reflecting long-term, deferred equity compensation.

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Accepted by SEC EDGAR 05/20/2026 - 02:35 PM 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^*

Simermeyer Elizabeth A

(Last) (First) (Middle)

C/O ACCO BRANDS CORP

FOUR CORPORATE DRIVE

(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)
05/19/2026

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	05/19/2026		A		32,809		(1)	(1)	Common Stock	32,809	$0	109,655.5	D

Explanation of Responses:

1. 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 Elizabeth A. Simermeyer	05/20/2026
	** 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)