MASS — 908 DEVICES INC
Public company
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Famous investors holding MASS
| Investor | Firm | Shares | Market value | % of portfolio | As of |
|---|---|---|---|---|---|
| Cathie Wood | ARK Investment Management | 2M | $10.4B | 0.16% | Dec 31, 2025 |
| Ken Griffin | Citadel Advisors | 287K | $1.5B | 0.00% | Dec 31, 2025 |
Recent activity
| Investor | Action | Δ % | Current value | Filing date |
|---|---|---|---|---|
| Ken Griffin | New | — | $468.7M | Nov 14, 2025 |
| Ken Griffin | New | — | $1.5B | Feb 17, 2026 |
| Cathie Wood | New | — | $17.1B | Nov 12, 2025 |
| Cathie Wood | New | — | $10.4B | Feb 11, 2026 |