ACCO Brands director granted 3,292 stock units

ACCO director Ronald M. Lombardi received a deferred grant of 3,292 RSUs that settle in stock upon death, disability, or leaving the Board.

Rhea-AI Filing Summary

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

ACCO BRANDS Corp (ACCO) reported that director Ronald M. Lombardi received a grant of 3,292 Restricted Stock Units (RSUs) on September 9, 2026 under the company’s Incentive Plan. Each RSU represents one share of common stock, bringing his directly held RSUs to 192,913.03 after the grant.

The RSUs are immediately vested or vest on the one-year anniversary of the grant date and have been deferred under the company’s Deferred Compensation Plan for Non-Employee Directors. Shares are delivered upon the earlier of Lombardi’s death or disability, or his cessation of service on the Board. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 3,292 shares

Grant/Award 1 txn

Insider Lombardi Ronald M.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1	3,292	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 192,913.03 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: 3,292 units RSUs held after transaction: 192,913.03 units Grant price per RSU: $0.00 per unit +2 more

5 metrics

RSUs granted 3,292 units Restricted Stock Units granted to Ronald M. Lombardi on September 9, 2026

RSUs held after transaction 192,913.03 units Direct RSU holdings of Ronald M. Lombardi following the grant

Grant price per RSU $0.00 per unit RSU grant recorded with no cash price, typical of equity awards

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

Transaction type Grant, award, or other acquisition Code A derivative transaction for RSUs on September 9, 2026

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"

FAQ

What insider transaction did ACCO director Ronald M. Lombardi report on this Form 4?

He reported an acquisition of 3,292 Restricted Stock Units (RSUs) on September 9, 2026 as a grant or award under ACCO BRANDS Corp’s Incentive Plan, with each RSU representing the right to receive one share of common stock.

How many ACCO (ACCO) Restricted Stock Units does Ronald M. Lombardi hold after this grant?

Following the grant, Ronald M. Lombardi holds 192,913.03 RSUs directly. Each RSU represents the right to receive one share of ACCO BRANDS Corp common stock under the terms described in the company’s plans.

When do Ronald M. Lombardi’s new ACCO RSUs vest and settle into shares?

The RSUs are immediately vested or vest on the one-year anniversary of the grant date and have been deferred. Each RSU pays out in one share of common stock upon the earlier of Lombardi’s death or disability, or cessation of service on the Board of Directors.

Were Ronald M. Lombardi’s ACCO RSUs granted under a specific company plan?

Yes. The 3,292 RSUs were granted under ACCO BRANDS Corp’s Incentive Plan and have been deferred under the Deferred Compensation Plan for Non-Employee Directors, as described in the Form 4 footnote.

Was Ronald M. Lombardi’s ACCO Form 4 transaction made under a Rule 10b5-1 trading plan?

No. The filing shows the Rule 10b5-1 checkbox as not affirmed, and there is no footnote stating that the RSU grant was made pursuant to a Rule 10b5-1 trading plan.

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Available on EDGAR 09/10/2026 - 03:18 PM Accepted by SEC EDGAR 09/10/2026 - 03:18 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^*

Lombardi Ronald M.

(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		3,292		(1)	(1)	Common Stock	3,292	$0	192,913.03	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 Ronald M. Lombardi	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)