Company: ACCO
Filing Date: 2025-06-30
Form Type: 11-K/A
Source: 0000950170-25-091716
Chunk: 12

Company: ACCO BRANDS Corp
Filing Date: 2025-06-30
Form: 11-K/A
Chunk 12
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-----------|:----|:------------------|-----------:|:--|
| Increase in net assets available for benefits per the financial statements |     | $                 | 27,389,158 |   |
| Deemed distribution of participant loans at end of year                    |     |                   |   (217,820 | ) |
| Deemed distribution of participant loans at beginning of year              |     |                   |    187,135 |   |
| Net income per the Form 5500                                               |     | $                 | 27,358,473 |   |

<div align='center'>(continued)</div>

10

<div align='center'>ACCO BRANDS CORPORATION 401(K) PLAN

Notes to Financial Statements

December 31, 2024 and 2023</div>

NOTE 8. Subsequent Events

Plan management has evaluated subsequent events for recognition and disclosure through June 19, 2025, and has determined that no significant events occurred after December 31, 2024, but prior to the issuance of these financial statements, that would have a material impact on its financial statements.

11

<div align='center'>SUPPLEMENTAL SCHEDULE</div>

12

ACCO BRANDS CORPORATION 401(K) PLAN Schedule H , Line 4(i) - Schedule of Assets (Held at End of Year) December 31, 2024 Name of plan sponsor: ACCO Brands Corporation Employer identification number: 36-2704017 Three-digit plan number: 002

| (a) |     | (b)                            
 Identity of Issue,             
 Borrower, Lessor               
 or Similar Party               |     | (c)                                                                            
 Description of Investment                                                      
 Including Maturity Date,                                                       
 Rate of Interest, Collateral,                                                  
 Par or Maturity Value                                                          
 Mutual Funds                                                                   |     | (d)  
 Cost |     | (e)     
 Current 
 Value   |             |
|:----|:----|:-------------------------------|:----|:-------------------------------------------------------------------------------|:----|:-----|:----|:--------|------------:|
|     |     | Columbia                       |     | Columbia Small Cap Value Fund II I3                                            |     | **   |     | $       |   4,155,105 |
|     |     | Dimensional Fund Advisors      |     | DFA Global Real Estate Securities Portfolio                                    |     | **   |     |         |     241,195 |
|     |     | Dodge & Cox