908 Devices Inc.
MASS- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001555279
In the last 90 days, 908 Devices Inc. insiders filed 0 open-market purchases and 13 sales; 111 institutions reported holding it in 13F filings for Q2 2026, worth $244.1M in total; ARK Invest is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in 908 Devices Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 112
- −5 vs. Q4 2025
- Shares held
- 27.9M
- +3.26M (+13.2%) vs. Q4 2025
- Total value
- $171.0M
- +$41.4M (+31.9%) vs. Q4 2025
- New holders
- 11
- 32 more added
- Sold out
- 16
- 46 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MASS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 111 | $244.1M |
| Q1 2026 | 112 | $171.0M |
| Q4 2025 | 118 | $137.3M |
| Q3 2025 | 107 | $214.7M |
| Q2 2025 | 102 | $173.6M |
| Q1 2025 | 87 | $92.3M |
| Q4 2024 | 81 | $36.9M |
| Q3 2024 | 86 | $64.8M |
| Q2 2024 | 90 | $100.4M |
| Q1 2024 | 75 | $156.5M |
| Q4 2023 | 79 | $247.1M |
| Q3 2023 | 83 | $140.8M |
| Q2 2023 | 86 | $145.8M |
| Q1 2023 | 84 | $188.0M |
| Q4 2022 | 93 | $165.4M |
| Q3 2022 | 81 | $359.9M |
| Q2 2022 | 77 | $396.7M |
| Q1 2022 | 84 | $383.7M |
| Q4 2021 | 87 | $490.2M |
| Q3 2021 | 86 | $519.5M |
| Q2 2021 | 74 | $451.9M |
| Q1 2021 | 72 | $413.8M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding 908 Devices Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Essex Investment Management Co LLC | 491,221 | $3.01M | 0.48% | +8,607+1.8% | Added |
| Tao Capital Management LP | 568,981 | $3.48M | 2.93% | 00.0% | Unchanged |
| State Street Corp | 625,892 | $3.83M | 0.00% | +29,598+5.0% | Added |
| Granahan Investment Management Inc | 695,070 | $4.25M | 0.21% | +603,929+662.6% | Added |
| Geode Capital Management, LLC | 695,455 | $4.26M | 0.00% | +6,889+1.0% | Added |
| First Eagle Investment Management, LLC | 803,606 | $4.92M | 0.01% | +179,723+28.8% | Added |
| Vanguard Capital Management LLC | 1,119,236 | $6.85M | 0.00% | +1,119,236 | New |
| Needham Investment Management LLC | 1,240,000 | $7.59M | 0.39% | +470,000+61.0% | Added |
| BlackRock, Inc. | 1,767,316 | $10.8M | 0.00% | −34,456−1.9% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 1,946,685 | $11.9M | 0.09% | −39,301−2.0% | Reduced |
| AWM Investment Company, Inc. | 5,199,924 | $31.8M | 3.52% | 00.0% | Unchanged |
| First Light Asset Management, LLC | 6,072,563 | $37.2M | 3.33% | +1,236,377+25.6% | Added |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −190,635−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −154,830−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −81,862−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −55,945−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −29,700−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −28,125−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −26,681−100.0% | Sold out |
| Opal Capital LLC | 0 | $0 | 0.00% | −17,581−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −11,515−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −6,750−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −3,544−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −860−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −197−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −114−100.0% | Sold out |
| Advocate Investing Services LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |