Welcome to our dedicated page for 908 Devices SEC filings (Ticker: MASS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
908 Devices Inc. filings document an operating company that sells common stock under MASS on the Nasdaq Global Market and reports on handheld chemical analysis tools used in health, safety and defense technology markets. Form 8-K reports furnish operating and financial results, revenue outlook materials, material-event disclosures, material agreements, capital-structure matters and related exhibits.
Proxy materials cover annual meeting voting matters, including director elections, auditor ratification, executive compensation votes and the frequency of future advisory compensation votes. The filing record also includes governance disclosures tied to board composition, annual meeting procedures, shareholder voting mechanics and emerging growth company status.
908 Devices Inc. executive John Kenneweg, SVP of Sales & Product Marketing, filed an initial Form 3 detailing his equity holdings in the company. The filing shows multiple stock option awards and restricted stock units, along with 57,784 shares of Common Stock held directly as of February 26, 2026.
Footnotes describe how various option grants and RSUs vest over time, with portions having already vested and remaining amounts vesting in monthly or annual installments through 2027, subject to his continued service. All entries are reported as holdings, with no explicit purchases or sales indicated in this filing.
908 Devices Inc. filed an initial Form 3 for Chief Legal and Administrative Officer Mark S. Levine, reporting existing equity awards. He holds stock options covering 130,468 shares and 98,242 restricted stock units. The options begin vesting on January 1, 2027, with one-third vesting then and the remaining two-thirds vesting in substantially equal monthly installments over the following 24 months, subject to continued service. The RSUs vest in three substantially equal annual installments on the anniversary dates following January 1, 2026, also contingent on continued service, and each RSU converts into one share of common stock when vested.
908 Devices Inc. senior vice president of Products and Production, Kevin J. McCallion, reported small insider transactions in company stock. On March 2, 2026, he exercised a stock option for 7 shares at $1.05 per share and received fully vested, immediately exercisable shares.
He then sold 7 shares of common stock at $7.00 per share in an open-market transaction made under a Rule 10b5-1 trading plan adopted on December 9, 2025. After these transactions, he directly held 26,686 option shares and 44,925 common shares.
908 Devices Inc. senior vice president Kevin J. McCallion reported an open-market sale of 7 shares of common stock at $7.00 per share on March 2, 2026. After this trade, he directly holds 44,918 common shares. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 9, 2025.
908 Devices Inc. executive Kevin J. McCallion, SVP of Products and Production, filed an initial ownership report detailing his equity in the company. He holds several stock option awards, including one covering 42,014 shares, restricted stock units covering 58,602 shares, and 44,925 shares of common stock, all held directly. Footnotes explain multi‑year vesting schedules for the options and RSUs, with key vesting dates beginning February 1, 2024 and extending through February 1, 2027, generally conditioned on his continued service.
908 Devices Inc. reported fourth-quarter and full-year 2025 results and provided a 2026 revenue outlook. Q4 2025 revenue was $17.4 million, up 21% year over year, and net income from continuing operations reached $4.4 million, with positive Adjusted EBITDA of $0.7 million.
For 2025, revenue from continuing operations was $56.2 million, an 18% increase, while net loss from continuing operations narrowed to $33.3 million. Net income attributable to common stockholders was $19.5 million, helped by discontinued operations, and cash, cash equivalents and marketable securities totaled $113.0 million with no debt.
The company expects 2026 revenue between $64.5 million and $67.5 million, representing 15% to 20% growth over 2025 revenue from continuing operations.
First Light Asset Management, LLC and Mathew P. Arens have disclosed significant passive ownership stakes in 908 Devices Inc. First Light reports beneficial ownership of 5,964,739 common shares, representing 16.48% of the company. Arens reports beneficial ownership of 6,184,739 shares, or 17.09% of the class.
The filing explains that First Light holds shares as an investment adviser to separately managed accounts and private funds, while Arens controls First Light and also owns additional shares directly and in joint accounts. They certify the holdings are in the ordinary course of business and not for the purpose of influencing control of 908 Devices.
State Street Corporation has reported beneficial ownership of 596,294 shares of 908 Devices Inc common stock, representing 1.6% of the class as of 12/31/2025. These shares are held with shared voting power over 564,044 shares and shared dispositive power over 596,294 shares.
Through subsidiary SSGA Funds Management, Inc., the group reports beneficial ownership of 134,786 shares, or 0.4% of the class, all with shared voting and dispositive power. The securities are certified as held in the ordinary course of business, not for the purpose of changing or influencing control of 908 Devices.
908 Devices Inc. director Christopher D. Brown reported the settlement of three batches of restricted stock units (RSUs) into Common Stock on February 1, 2026. RSUs covering 5,027, 7,418, and 10,992 shares converted into the same number of Common shares at an exercise price of $0 per share.
Following these vesting events, Brown directly beneficially owns 985,559 shares of Common Stock and 21,982 RSUs. The RSU awards vest in four substantially equal annual installments on anniversary dates following February 1, 2022, February 1, 2023, and February 1, 2024, subject to his continued service.
908 Devices Inc. President and CEO Kevin J. Knopp reported equity compensation activity and a tax-related share sale. On February 1, 2026, several Restricted Stock Units vested and were settled for 11,255, 13,449, 17,007, and 66,288 shares of common stock, increasing his direct holdings to 830,732 shares.
On February 2, 2026, Knopp sold 34,764 shares of common stock at a weighted average price of $6.18 solely to cover tax withholding from the RSU vesting, leaving 795,968 shares held directly. He also received 205,978 new RSUs and a stock option for 90,043 shares at a $6.19 exercise price, which begin vesting on February 1, 2027. Separately, 541,223 shares are held indirectly by The Kevin J. Knopp Irrevocable Trust of 2018, for which his brother-in-law serves as trustee with sole voting and dispositive control.