Companies / 908 Devices Inc.
908 Devices Inc.
Nasdaq: MASSCIK 1555279BURLINGTON, MA
Financials · FY2025
Ownership
41.3M shares outstanding · as of Aug 7, 2026
Ownership
| Insiders | 5.42% | 2,242,347 |
| 10%+ / strategic | 1.44% | 596,294 |
| Institutions | 64.87% | 26,811,822 |
| Public float | 28.27% | 11,683,242 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 10
View all →| Insider | % of shares | Shares |
|---|---|---|
Brown Christopher D.Director | 2.38% | 985,559 |
Knopp Kevin J.CEOPresident and CEO · Director | 1.93% | 795,968 |
Hrusovsky E KevinDirector | 0.40% | 165,390 |
Griffith Joseph H. IVChief Financial Officer | 0.34% | 139,896 |
Spoto MarkDirector | 0.18% | 75,263 |
McCallion Kevin J.FormerSVP, Products and Production | 0.11% | 44,925 |
Eloi Fenel MDirector | 0.10% | 40,897 |
Crandell KeithDirector | 0.10% | 39,374 |
Kenneweg JohnFormerSVP, Sales & Product Marketing | — | — |
Levine Mark S.Chief Legal and Admin. Officer | — | — |
Institutional holders 118
View all →| Holder | Value | % of shares |
|---|---|---|
| $27.30M | 12.58% | |
| $25.39M | 11.70% | |
| $16.91M | 4.70% | |
| $10.43M | 4.80% | |
| $7.72M | 3.56% | |
| $7.59M | 3.00% | |
| $5.28M | 1.47% | |
| $4.92M | 1.94% | |
| $4.26M | 1.68% | |
| $4.25M | 1.68% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 2, 2026 | Knopp Kevin J. CEO | Sell | Common Stock | $214.8K | -35K -4.18% | 795,968 1.93% of shares | medium |
| Feb 2, 2026 | Griffith Joseph H. IV Executive | Sell | Common Stock | $143.2K | -23K -14.21% | 139,896 0.34% of shares | medium |
| Mar 2, 2026 | McCallion Kevin J. Executive | Sell | Common Stock | $49 | -7 -0.02% | 44,918 0.11% of shares | low |
| Mar 2, 2026 | McCallion Kevin J. Executive | Sell | Common Stock | $49 | -7 -0.02% | 44,925 0.11% of shares | low |
| Mar 2, 2026 | McCallion Kevin J. Executive | Exercise | Common Stock | $7 | +7 +0.02% | 44,932 0.11% of shares | low |
| Dec 30, 2025 | Spoto Mark Director | Gift | Common Stock | $0 | +928 +1.25% | 75,263 0.18% of shares | low |
| Dec 30, 2025 | Spoto Mark Director | Gift | Common Stock | $0 | -928 -100.00% | 0 0.00% of shares | low |
| Jun 11, 2026 | Hrusovsky E Kevin Director | Grant | Stock Option (option to buy) | — | +6K | 6,209 0.02% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| First Light Asset Management, LLC | Passive13G/A | — |
| State Street Corporation | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| MASS | Common Stock | 65443P102 |