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, Q3 2025
Institutional positions in 908 Devices Inc. as of Sep 30, 2025. 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
- 107
- +5 vs. Q2 2025
- Shares held
- 24.5M
- +166.3K (+0.7%) vs. Q2 2025
- Total value
- $214.7M
- +$41.1M (+23.7%) vs. Q2 2025
- New holders
- 17
- 29 more added
- Sold out
- 12
- 40 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding 908 Devices Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GM Advisory Group, Inc. | 678,086 | $5.94M | 0.25% | −487,205−41.8% | Reduced |
| Vanguard Group Inc | 1,421,732 | $12.5M | 0.00% | −9,383−0.7% | Reduced |
| BlackRock, Inc. | 1,756,205 | $15.4M | 0.00% | −34,640−1.9% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 1,953,772 | $17.1M | 0.10% | −694,506−26.2% | Reduced |
| State Street Corp | 2,298,648 | $20.1M | 0.00% | +11,513+0.5% | Added |
| First Light Asset Management, LLC | 2,510,496 | $22.0M | 2.07% | +1,442,883+135.2% | Added |
| AWM Investment Company, Inc. | 5,199,924 | $45.6M | 4.27% | 00.0% | Unchanged |
| Manatuck Hill Partners, LLC | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −47,850−100.0% | Sold out |
| Zacks Investment Management | 0 | $0 | 0.00% | −25,720−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −18,537−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −11,504−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −11,400−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −10,869−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −3,467−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −2,277−100.0% | Sold out |
| Kozak & Associates, Inc. | 0 | $0 | 0.00% | −750−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | 0 | Sold out |