Company: CODI-PB
Filing Date: 2025-11-10
Form Type: NT 10-Q
Source: 0001345126-25-000064
Chunk: 4

Company: Compass Diversified Holdings
Filing Date: 2025-11-10
Form: NT 10-Q
Chunk 4
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’s independent registered public accounting firm regarding the investigation and CODI’s financial statements; a further material delay in CODI’s financial reporting or ability to hold an annual meeting of stockholders; the impacts of restatement reviews; the control deficiencies identified or that may be identified in the future that will result in material weaknesses in CODI’s internal control over financial reporting; and litigation relating to the investigation, including CODI’s representations regarding its financial statements, and current and future litigation, investigations or enforcement actions relating to CODI’s internal controls, restatement reviews, the Lugano investigation, or related matters. Please see CODI’s Annual Report on Form 10-K for the year ended December 31, 2024 for other risk factors that you should consider in connection with such forward-looking statements. Investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date such statements have been made. Except as required by applicable law, CODI does not undertake any public obligation to update any forward-looking statements to reflect

events, circumstances, or new information after the date of this Form 12b-25, or to reflect the occurrence of unanticipated events.

### COMPASS DIVERSIFIED HOLDINGS
<div align='center'>(Name of Registrant as Specified in Charter)</div>

### COMPASS GROUP DIVERSIFIED HOLDINGS LLC
<div align='center'>(Name of Registrant as Specified in Charter)</div>

has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized.

| Date: November 10, 2025 |     | COMPASS DIVERSIFIED HOLDINGS |     |                    |
|:------------------------|:----|:-----------------------------|:----|:-------------------|
|                         |     | By:                          |     | /s/ Stephen Keller |
|                         |     |                              |     | Stephen Keller     |
|                         |     |                              |     | Regular Trustee    |

| Date: November 10, 2025 |     | COMPASS GROUP DIVERSIFIED HOLDINGS LLC |     |                         |
|:------------------------|:----|:---------------------------------------|:----|:------------------------|
|                         |     | By:                                    |     | /s/ Stephen Keller      |
|                         |     |                                        |     | Stephen Keller          |
|                         |     |                                        |     | Chief Financial Officer |