ACCO Brands director granted 4,514 RSUs

ACCO director Robert J. Keller received a deferred grant of 4,514.3000 RSUs tied to future board service or separation conditions.

Rhea-AI Filing Summary

ACCO BRANDS Corp (symbol: ACCO) is the issuer of record for a Form 4 filing submitted to the SEC. Keller Robert J reported acquisition or exercise transactions in this Form 4 filing.

ACCO BRANDS Corp (ACCO) reported that director Robert J. Keller received a grant of 4,514.3000 Restricted Stock Units (RSUs) on September 9, 2026 under the company’s Incentive Plan. Following this award, he holds 264,536.6700 RSUs directly.

The RSUs are immediately vested or vest on the one-year anniversary of the grant date and have been deferred under ACCO’s Deferred Compensation Plan for Non-Employee Directors. Each RSU represents the right to receive one share of common stock upon the earlier of Keller’s death or disability, or his cessation of service on the Board.

Insider Trade Summary

Grant/Award: 4,514.3 shares

Grant/Award 1 txn

Insider Keller Robert J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1	4,514.3	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 264,536.67 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: 4,514.3000 RSUs RSUs held after transaction: 264,536.6700 RSUs Grant price per RSU: $0.0000 per RSU +2 more

5 metrics

RSUs granted 4,514.3000 RSUs Restricted Stock Units granted to Robert J. Keller on September 9, 2026

RSUs held after transaction 264,536.6700 RSUs Total RSUs directly held by Robert J. Keller after the grant

Grant price per RSU $0.0000 per RSU Compensation grant of RSUs with no cash price reported

Transaction date September 9, 2026 Grant date for the RSU award to Robert J. Keller

Underlying common shares per RSU 1 share per RSU Each RSU represents the right to receive one share of ACCO 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 regulatory

"upon the earlier of the date of the reporting person's death or disability, or cessation of service"

FAQ

What insider transaction did ACCO (ACCO) report for Robert J. Keller?

ACCO reported that director Robert J. Keller received a grant of 4,514.3000 Restricted Stock Units (RSUs) on September 9, 2026 as a compensation-related award under the company’s Incentive Plan.

How many ACCO RSUs does Robert J. Keller hold after this Form 4 transaction?

After the September 9, 2026 grant, Robert J. Keller holds a total of 264,536.6700 RSUs directly. Each RSU represents the right to receive one share of ACCO common stock upon specified future events.

What are the vesting terms of the RSUs granted to Robert J. Keller at ACCO?

The RSUs granted to Robert J. Keller either vest immediately or vest on the one-year anniversary of the grant date. In both cases, they have been deferred under ACCO’s Deferred Compensation Plan for Non-Employee Directors.

When will the RSUs for ACCO director Robert J. Keller be settled in common stock?

Each RSU represents the right to receive one share of ACCO common stock upon the earlier of his death or disability, or his cessation of service as a member of the Board of Directors.

Was the ACCO Form 4 transaction for Robert J. Keller made under a Rule 10b5-1 plan?

The filing indicates the Rule 10b5-1 checkbox is not affirmed for this report, meaning no Rule 10b5-1 trading plan is reported in connection with this RSU grant.

Did Robert J. Keller pay a price per share for the ACCO RSUs granted?

The RSUs were reported with a per-unit price of $0.0000, indicating they were granted as compensation rather than purchased in an open-market or cash transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 03:31 PM Accepted by SEC EDGAR 09/10/2026 - 03:30 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^*

Keller Robert J

(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)
09/09/2026

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	09/09/2026		A		4,514.3		(1)	(1)	Common Stock	4,514.3	$0	264,536.67	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 Robert J. Keller	09/10/2026
	** 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)