[Form 4] ACCO BRANDS Corp Insider Trading Activity

Rhea-AI Filing Summary

John Peters, Senior Vice President and President North America of ACCO BRANDS Corp (ACCO), reported multiple restricted stock unit (RSU) awards dated 09/10/2025. Four RSU grants were reported with vesting dates of 03/14/2026, 03/12/2027, 03/11/2028, and 07/01/2028. Each RSU represents the right to receive one share of ACCO common stock on the stated vesting date provided continued employment and subject to plan acceleration provisions. The filing shows the number of underlying common shares associated with each grant as 332.1, 386.8, 406.5 and 405.2 RSUs respectively and reports aggregated beneficial ownership totals after the transactions of 17,909.1, 20,860.8, 21,924.5 and 21,853.2 shares. The filing also discloses that additional shares (2,221; 1,817; 814) had been inadvertently excluded from the Reporting Person's earlier Form 3 totals. The Form 4 was signed by an attorney-in-fact on behalf of John Peters on 09/12/2025.

Positive

• RSU grants documented for a senior executive, indicating alignment of long‑term incentives with shareholders
• Corrections disclosed for prior Form 3 omissions, improving transparency of insider holdings

Negative

• Prior reporting errors — the Form 3 inadvertently excluded 2,221; 1,817; and 814 shares, indicating earlier disclosure inaccuracy

Insights

Compensation / Corporate Governance Analyst

TL;DR: Multiple time‑based RSU grants to a senior officer were reported, and prior ownership totals were corrected for inadvertent exclusions.

The reported awards are routine time‑based restricted stock units that vest on defined future dates contingent on continued employment and plan terms. Such grants are common for senior executives and reflect standard long‑term incentive compensation rather than open market purchases or sales. The disclosure that prior Form 3 totals omitted specific share amounts (2,221; 1,817; 814) is noteworthy from a governance and disclosure‑accuracy perspective; corrections improve the accuracy of insider holdings records but do not, by themselves, indicate change in economic exposure beyond the granted RSUs.

Securities / Compliance Specialist

TL;DR: Filing documents new RSU grants and corrects earlier reporting omissions; impact is procedural and compliance‑related.

From a securities‑compliance standpoint, the Form 4 properly reports award grant dates, vesting dates, and that each RSU converts to one share at vesting. The inclusion of dividend equivalent RSUs and the explicit statement of inadvertent exclusions on the prior Form 3 addresses previous reporting gaps. These corrections reduce disclosure risk going forward but do not provide valuation or liquidity information. No open‑market buy/sell transactions were reported.

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^*

Peters John

(Last) (First) (Middle)

C/O ACCO BRANDS

(Street)

LAKE ZURICH IL 60047

(City) (State) (Zip)

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

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP ACCO Brands, Pres. No. Ame

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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(1)	$0	09/10/2025		A		405.2(2)		07/01/2028	07/01/2028	Common Stock	405.2	$0	21,853.2	D
Restricted Stock Units(3)	$0	09/10/2025		A		332.1(2)		03/14/2026	03/14/2026	Common Stock	332.1	$0	17,909.1(4)	D
Restricted Stock Units(5)	$0	09/10/2025		A		386.8(2)		03/12/2027	03/12/2027	Common Stock	386.8	$0	20,860.8(6)	D
Restricted Stock Units(7)	$0	09/10/2025		A		406.5(2)		03/11/2028	03/11/2028	Common Stock	406.5	$0	21,924.5(8)	D

Explanation of Responses:

1. 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 July 1, 2028, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.

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

3. 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 14, 2026, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.

4. The number of derivative securities beneficially owned includes an additional 2,221 shares underlying the RSUs that were inadvertently excluded in the total number reported in the Reporting Person's Form 3.

5. Restricted Stock Unites (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock March 12, 2027, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.

6. The number of derivative securities beneficially owned includes an additional 1,817 shares underlying the RSUs that were inadvertently excluded in the total number reported in the Reporting Person's Form 3.

7. 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, 2028, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.

8. The number of derivative securities beneficially owned includes an additional 814 shares underlying the RSUs that were inadvertently excluded in the total number reported in the Reporting Person's Form 3.

	Kathryn D. Ingraham, attorney-in-fact for John Peters	09/12/2025
	** 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.

FAQ

What did John Peters (ACCO) report on Form 4 dated 09/10/2025?

He reported multiple RSU awards granted on 09/10/2025 with vesting dates of 03/14/2026, 03/12/2027, 03/11/2028, and 07/01/2028.

How many underlying shares were reported after the RSU grants for John Peters?

Aggregated beneficial ownership totals reported after the transactions are 17,909.1; 20,860.8; 21,924.5; and 21,853.2 shares for the respective awards.

Did the Form 4 correct any prior disclosure errors?

Yes. The filing states additional shares that were inadvertently excluded on the Form 3: 2,221; 1,817; and 814 shares.

Do the RSUs convert to common stock and when?

Yes. Each RSU represents the right to receive one share of ACCO common stock on the stated vesting date, subject to continued employment and plan provisions.

Was there any open‑market buying or selling reported by the insider?

No. The Form 4 reports grant (derivative) transactions (RSUs); there are no open‑market purchases or dispositions listed.