908 Devices Inc. Commitments Disclosure

17. Commitments and Contingencies

Operating Leases

The Company’s commitments under its leases are described in Note 16, Leases.

Royalty Arrangements

The Company has entered into royalty arrangements whereby the Company owes low- to mid-single digit royalty percentages related to revenue that is derived pursuant to in-licensed technologies. These royalties are calculated as a percent of revenue or on a per component basis, depending on the arrangement. Royalty obligations are expensed when incurred or over the minimum royalty periods and have not been material.

401(k) Savings Plan

The Company has a defined-contribution savings plan under Section 401(k) of the Internal Revenue Code. This plan covers substantially all employees who meet minimum age and service requirements and allows participants to defer a portion of their annual compensation on a pre-tax basis. Company contributions to the plan may be made at the discretion of the board of directors. The Company made contributions of $0.4 million and $0.3 million for the years ended December 31, 2025 and 2024, respectively.

Contingent Consideration – Earnout from acquisition of RedWave Technology

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The Company may be obligated to issue up to an additional 4,000,000 unregistered shares of the Company’s common stock as contingent consideration to the Beneficial Sellers in connection with the acquisition of RedWave, based on the amount of revenue the Company generates from the sale of certain RedWave products and services during

the two-year period from May 1, 2024 through April 30, 2026, as set forth in more detail the Purchase Agreement. If the earnout revenue achieved during the period is at least $37 million, the Company will be obligated to issue at least 1,000,000 contingent shares, which number of contingent shares will be increased based on the amount of earnout revenue achieved during the period, up to a maximum of 4,000,000 contingent shares for earnout revenue equal to or greater than $45 million. The earnout revenue also may include certain qualified bookings credit, as defined in the Purchase Agreement, for certain RedWave products in the event that earnout revenue is otherwise above $37 million. No contingent shares will be issued if the earnout revenue achieved during the period is less than $37 million. See Note 4, Fair Value Measurements.

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Indemnification Agreements

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In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, business partners and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with its executive officers and members of its board of directors that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or services as directors or officers. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. To date, the Company has not incurred any material costs as a result of such indemnifications. The Company is not currently aware of any indemnification claims and had not accrued any liabilities related to such obligations in its consolidated financial statements as of December 31, 2025 and 2024.

Legal Proceedings

The Company is not currently party to any material legal proceedings. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company expenses as incurred the costs related to such legal proceedings.