Company: ACCO
Filing Date: 2025-06-20
Form Type: 11-K
Source: 0000950170-25-088224
Chunk: 2

Company: ACCO BRANDS Corp
Filing Date: 2025-06-20
Form: 11-K
Chunk 2
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 stated in all material respects in relation to the financial statements as a whole.

/s/Crowe LLP

We have served as the Plan's auditor since 2005.

Oak Brook, Illinois

June 19, 2025

1

ACCO BRANDS CORPORATION 401(K) PLAN Statements of Net Assets Available for Benefits December 31, 2024 and 2023

| Assets                             |     | December 31, 
 2024         |             |     | 2023 |             |
|:-----------------------------------|:----|:-------------|------------:|:----|:-----|------------:|
| Investments, at fair value         |     | $            | 349,914,502 |     | $    | 322,405,480 |
| Investments, at contract value     |     |              |  26,700,887 |     |      |  26,574,983 |
| Receivables:                       |     |              |             |     |      |             |
| Employer contribution              |     |              |      83,199 |     |      |      95,288 |
| Employee contribution              |     |              |      17,026 |     |      |      21,778 |
| Notes receivable from participants |     |              |   5,023,073 |     |      |   5,252,000 |
| Total receivables                  |     |              |   5,123,298 |     |      |   5,369,066 |
| Net Assets Available for Benefits  |     | $            | 381,738,687 |     | $    | 354,349,529 |

<div align='center'>See accompanying notes to financial statements</div>

2

ACCO BRANDS CORPORATION 401(K) PLAN Statement of Changes in Net Assets Available for Benefits Year Ended December 31, 2024

| Additions to net assets attributed to:                 
 Investment income:                                     |     |   |             |
|:-------------------------------------------------------|:----|:--|------------:|
| Dividend and interest income                           |     | $ |   7,767,038 |
| Net appreciation in fair value of investments          |     |   |  42,691,583 |
| Interest income on notes receivables from participants |     |   |     346,425 |
| Contributions:                                         |     |   |             |
| Participant                                            |