SEC Form 4 · accession 0001836523-26-000011
908 Devices Inc. · MASS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Kevin J. Knopp
Officer — President and CEO · Director
Period of report
Aug 10, 2026
Accepted (ET)
Aug 12, 2026 · 5:05 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001555279
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2 | Aug 10, 2026 | S | 348 | $9.06 | D | 732,255 | D | |
| Common StockF3 | Aug 11, 2026 | S | 115,748 | $9.83 | D | 616,507 | D | |
| Common StockF4 | Aug 11, 2026 | S | 30,170 | $10.16 | D | 586,337 | D | |
| Common StockF5 | Aug 12, 2026 | S | 2,747 | $10.07 | D | 583,590 | D | |
| Common StockF6 | holding | — | — | — | 541,223 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2025.
- F2The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.05 to $9.08 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F3The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.08 to $10.0745 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F4The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.08 to $10.34 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F5The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.05 to $10.25 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F6The shares are owned directly by The Kevin J. Knopp Irrevocable Trust of 2018. The reporting person's brother-in-law is the trustee of The Kevin J. Knopp Irrevocable Trust of 2018 and has sole voting and dispositive control with respect to all securities held by such trust. The reporting person may be deemed to be the beneficial owner of the securities held by The Kevin J. Knopp Irrevocable Trust of 2018.