Solo Brands, Inc.

NOTE 9 –Intangible Assets, net

Intangible assets, net consisted of the following (in thousands):

(1) Includes aggregate impairments for brand of $77.3 million, trademarks of $7.1 million, customer relationships of $0.5 million and patents of $6.8 million as of December 31, 2025 and aggregate impairments for brand of $6.5 million, trademarks of $5.4 million, customer relationships of $0.5 million and patents of $6.8 million as of December 31, 2024.

Additions of $1.6 million and $1.4 million related to patents, primarily for patent defense, were included in capital expenditures within the consolidated statement of cash flows for the years ended December 31, 2025 and 2024, respectively.

2025 Impairment Testing

In the fourth quarter of 2025, the Company identified a triggering event within our Solo Stove asset group, as a result of lower-than-expected sales volumes. Accordingly, we evaluated the recoverability of the asset group. The carrying amount of the asset group was compared to the sum of the undiscounted cash flows expected to result from their use and eventual disposition. The sum of the undiscounted cash flows attributable to the asset group was less than their carrying amount. Accordingly, these assets were determined to be not recoverable.

We performed a recoverability test for our finite-lived intangible assets, which consist primarily of brands, customer relationships, patents, and tradenames with definite lives. The carrying amount of these assets was compared to the sum of the undiscounted cash flows expected to result from their use and eventual disposition. The sum of the undiscounted cash flows attributable to the finite-lived intangible assets was less than their carrying amount. Accordingly, these assets were determined to be not recoverable.

For the quantitative finite-lived intangible assets impairment analysis performed as of December 31, 2025, the Company estimated the fair value of the asset group using a weighting of fair values derived from the income and market approaches, where comparable market data was available. Under the income approach, the Company determined the fair value of an asset group based on the present value of estimated future cash flows. Cash flow projections were based on management’s estimates of revenue growth rates and operating margins, EBITDA margins, consideration of industry and market conditions, terminal growth rates and management’s estimates of working capital requirements. The discount rate for the asset group was based on a weighted average cost of capital adjusted for the relevant risk associated with the characteristics of each reporting unit and its estimated cash flows, which was 15.0%. The terminal growth rate applied was 3.0%. Under the market approach, the Company utilized market multiples of revenue and earnings derived from comparable publicly-traded companies with similar operating and investment characteristics as the asset group.

We performed a separate valuation of certain finite-lived intangible assets, which consists of brands and tradenames with definite lives to determine the amount of impairment to attribute to individual long-lived assets. All other finite-lived assets in the Solo Stove asset group were determined not to be impaired. As a result of the separate valuation, we recorded anon-cash impairment charge of $72.5 million during the year ended December 31, 2025, consisting of:

•Brand Intangible Asset - $70.8 million

•Trademark Intangible Asset - $1.7 million

As a result of these impairment charges, the Company assessed the useful lives assigned to the impaired intangible assets, resulting in the conclusion that the useful lives remained reasonable.

2024 Impairment Testing

Fourth Quarter - 2024

In the fourth quarter of 2024, the Company observed the following triggering events for the Company’s held and used long-lived asset groups:

•A sustained decline in the share price of the Company’s Class A common stock as of December 31, 2024; and

•A significant decline in performance of the Solo Stove reporting unit in comparison to previous forecasts for the fourth quarter of 2024;

As a result of the identified triggering events, the Company performed a recoverability test for the identified long-lived asset group, and the results of the test indicated that the carrying amounts for the long-lived asset group of Solo Stove were expected to be recoverable.

Third Quarter - 2024

In the third quarter of 2024, the Company observed the following triggering events for the Company’s held and used long-lived asset groups:

•A sustained decline in the share price of the Company’s Class A common stock as of September 30, 2024; and

•Underperformance of the IcyBreeze reporting unit for the third quarter and year to date period ended September 30, 2024;

As a result of the identified triggering events, the Company performed a recoverability test for the identified long-lived asset groups, and the results of the test indicated that the carrying amounts for the long-lived asset group of IcyBreeze were not expected to be recovered. The Company estimated the fair value of the asset group, which included the use of level 3 inputs, of IcyBreeze and wrote down the intangible assets to their estimated fair value, resulting in nominal value assigned to the existing intangible asset(s). See Note 3, Restructuring, Contract Termination and Impairment Charges for impairment considerations as they relate to the property and equipment, net of IcyBreeze.

The Company recorded an aggregate $13.3 million impairment charge to the intangible assets of IcyBreeze as of December 31, 2024. As a result of this impairment charge, the Company also reassessed the useful life of the intangible assets of IcyBreeze. As of December 31, 2024, $0.9 million of value continued to be attributable to the patent intangible asset of IcyBreeze, for which the Company expects to continue to obtain value over its remaining useful life. As such, the remaining useful life of the patent intangible asset was not revised. The impact of the impairment did not have a material impact to amortization expense in any future year.

Amortization Expense

Amortization expense was $18.8 million and $19.4 million for the years ended December 31, 2025 and 2024, respectively. Amortization expense is recorded to depreciation and amortization expenses on the consolidated statements of operations and comprehensive income (loss).

Estimated amortization expense for the next five years is as follows (in thousands):