908 DevicesMASS
13F holders, Q4 2025 (December 31)118holders +11
17new positions
10sold out
6famous investors
$5.25avg. 13F price*
At the end of Q4 2025, 118 institutions reported holding 908 Devices Inc. (MASS) in their 13F filings, up 11 from Q3 2025. 17 opened new positions and 10 sold out. The largest holders were AWM Investment Company, Inc. ($27.3M), First Light Asset Management, LLC ($25.4M) and ARK Investment Management ($10.4M). 6 famous investors held it, including Cathie Wood (0.1% of ARK Investment Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- 908 Devices Inc.
- CUSIP
- 65443P102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $5.4M |
| Exits | 10 | $3.6M |
All 13F filers, Q3 2025 → Q4 2025: 5,150,999 shares bought and 3,602,910 shares sold, net +1,548,089 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 118 holders
| AWM Investment Company, Inc. | 2.64% | No change | 5,199,924 | $27.3M |
| First Light Asset Management, LLC | 1.94% | Add +92.6% | 4,836,186 | $25.4M |
| ARK Investment Management | 0.07% | Add +1.6% | 1,985,986 | $10.4M |
| BlackRock, Inc. | 0.00% | Add +2.6% | 1,801,772 | $9.5M |
| Vanguard Group Inc. | 0.00% | Add +3.5% | 1,470,864 | $7.7M |
| Needham Investment Management LLC | 0.26% | Add +246.8% | 770,000 | $4.0M |
| Geode Capital Management, LLC | 0.00% | Add +2.5% | 688,566 | $3.6M |
| First Eagle Investment Management, LLC | 0.01% | Add +3.3% | 623,883 | $3.3M |
| State Street Corp. | 0.00% | Reduce -74.1% | 596,294 | $3.1M |
| Tao Capital Management LP | 2.57% | No change | 568,981 | $3.0M |
| Essex Investment Management Co. LLC | 0.39% | Reduce -2.3% | 482,614 | $2.5M |
| Morgan Stanley | 0.00% | Reduce -22.9% | 440,486 | $2.3M |
| Prescott Group Capital Management, L.L.C. | 0.18% | Add +90.3% | 361,595 | $1.9M |
| Meros Investment Management, LP | 0.72% | Add +232.7% | 347,035 | $1.8M |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -9.5% | 288,081 | $1.5M |
| Amova Asset Management Americas, Inc. | 0.02% | Reduce -9.5% | 288,081 | $1.5M |
| GM Advisory Group, LLC | 0.06% | Reduce -58.9% | 278,792 | $1.5M |
| Citadel Advisors | 0.00% | New | 264,373 | $1.4M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -24.1% | 246,614 | $1.3M |
| HighMark Wealth Management LLC | 0.52% | New | 241,000 | $1.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.1% | 240,929 | $1.3M |
| Northern Trust Corp. | 0.00% | Add +10.7% | 230,294 | $1.2M |
| Renaissance Technologies | 0.00% | Add +6.1% | 222,100 | $1.2M |
| Squarepoint Ops LLC | 0.00% | Add +63.5% | 218,676 | $1.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +150.1% | 199,286 | $1.0M |
| Marshall Wace, LLP | 0.00% | Reduce -56.6% | 190,635 | $1.0M |
| Raymond James Financial Inc. | 0.00% | Reduce -2.7% | 178,267 | $936K |
| Millennium Management | 0.00% | Add +409.0% | 158,103 | $830K |
| Legato Capital Management LLC | 0.07% | Add +9.5% | 155,594 | $817K |
| HRT Financial LP | 0.00% | New | 154,830 | $812K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -30.5% | 140,503 | $715K |
| Gsa Capital Partners LLP | 0.06% | New | 122,137 | $641K |
| Nano Cap New Millennium Growth Fund L P | 0.54% | — | 120,000 | $630K |
| UBS Group AG | 0.00% | Add +85.7% | 112,654 | $591K |
| AQR Capital Management | 0.00% | Reduce -0.3% | 104,806 | $550K |
| Nuveen, LLC | 0.00% | No change | 99,988 | $525K |
| Granahan Investment Management, LLC | 0.02% | Add +41.7% | 91,141 | $478K |
| Bank of Montreal | 0.00% | No change | 90,852 | $477K |
| Sei Investments Co. | 0.00% | New | 81,960 | $430K |
| Acadian Asset Management LLC | 0.00% | Add +385.0% | 81,862 | $428K |
| Campbell & CO Investment Adviser LLC | 0.02% | Add +21.2% | 80,553 | $423K |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.03% | Add +47.8% | 78,026 | $410K |
| Two Sigma Investments, LP | 0.00% | No change | 72,327 | $380K |
| Cassaday & Co Wealth Management LLC | 0.01% | No change | 71,629 | $376K |
| LPL Financial LLC | 0.00% | Reduce -0.9% | 68,561 | $360K |
| Bruce & Co., Inc. | 0.11% | No change | 68,286 | $359K |
| Bank of New York Mellon Corp | 0.00% | Reduce -7.8% | 61,022 | $320K |
| Point72 Asset Management | 0.00% | New | 55,945 | $294K |
| American Century Companies Inc. | 0.00% | Reduce -0.4% | 55,894 | $293K |
| Bridgeway Capital Management, LLC | 0.01% | Add +65.6% | 50,500 | $265K |
| Barclays PLC | 0.00% | Add +15.4% | 44,528 | $234K |
| Alliancebernstein L.P. | 0.00% | Reduce -9.4% | 41,550 | $218K |
| Old Port Advisors | 0.05% | No change | 38,629 | $203K |
| Jane Street Group, LLC | 0.00% | New | 36,795 | $193K |
| Rhumbline Advisers | 0.00% | Reduce -3.5% | 34,773 | $183K |
| State of Wisconsin Investment Board | 0.00% | New | 32,294 | $170K |
| Wells Fargo & Company | 0.00% | Add +72.1% | 30,623 | $161K |
| STRS Ohio | 0.00% | Add +130.2% | 29,700 | $156K |
| Axq Capital, LP | 0.03% | Add +115.6% | 28,125 | $148K |
| Engineers Gate Manager LP | 0.00% | New | 26,681 | $140K |
| Cresset Asset Management, LLC | 0.00% | Add +68.2% | 26,343 | $138K |
| Bank of America Corp. | 0.00% | Reduce -90.3% | 26,341 | $138K |
| Quantinno Capital Management LP | 0.00% | Add +28.0% | 23,226 | $122K |
| Opal Capital LLC | 0.03% | — | 17,581 | $121K |
| Susquehanna International Group, LLP | 0.00% | Reduce -8.6% | 21,723 | $114K |
| Graham Capital Management, L.P. | 0.01% | Add +12.9% | 20,787 | $109K |
| XTX Topco Ltd | 0.00% | Reduce -55.9% | 19,852 | $104K |
| Deutsche Bank AG | 0.00% | Add +3351.1% | 18,429 | $97K |
| 49 Wealth Management, LLC | 0.01% | Reduce -8.4% | 17,581 | $92K |
| Invesco Ltd. | 0.00% | Add +1.3% | 14,428 | $76K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 13,827 | $73K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +0.2% | 12,722 | $67K |
| PCM Encore, LLC | 0.01% | — | 11,830 | $62K |
| Concurrent Investment Advisors, LLC | 0.00% | Reduce -50.0% | 11,745 | $62K |
| Intech Investment Management LLC | 0.00% | Reduce -13.0% | 11,515 | $60K |
| JPMorgan Chase & Co. | 0.00% | Reduce -2.2% | 10,993 | $58K |
| MetLife Investment Management, LLC | 0.00% | Add +5.6% | 10,948 | $57K |
| FMR LLC | 0.00% | Reduce -2.2% | 10,551 | $55K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 8,523 | $45K |
| New York State Common Retirement Fund | 0.00% | No change | 8,487 | $45K |
| BNP Paribas Financial Markets | 0.00% | Add +40.6% | 7,557 | $40K |
| Cwm, LLC | 0.00% | Reduce -0.8% | 6,794 | $36K |
| Daiwa Securities Group Inc. | 0.00% | Reduce -12.9% | 6,750 | $35K |
| Allworth Financial LP | 0.00% | Reduce -1.8% | 5,349 | $28K |
| ANTIPODES PARTNERS Ltd | 0.00% | Reduce -2.5% | 5,094 | $27K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | New | 4,358 | $23K |
| State of Wyoming | 0.00% | New | 3,544 | $19K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,795 | $15K |
| Legal & General Group Plc | 0.00% | Reduce -6.3% | 2,734 | $14K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -78.7% | 2,268 | $12K |
| Signaturefd, LLC | 0.00% | Add +35.9% | 1,966 | $10K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +67.0% | 1,915 | $10K |
| California State Teachers Retirement System | 0.00% | Reduce -2.1% | 1,686 | $9K |
| Versant Capital Management, Inc | 0.00% | No change | 1,070 | $6K |
| Amalgamated Bank | 0.00% | Add +12.3% | 860 | $5K |
| Royal Bank of Canada | 0.00% | Reduce -99.6% | 781 | $4K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -81.9% | 684 | $4K |
| Citigroup Inc. | 0.00% | Reduce -72.6% | 620 | $3K |
| Sterling Capital Management LLC | 0.00% | Add +17.2% | 578 | $3K |
| Flagship Harbor Advisors, LLC | 0.00% | New | 500 | $3K |
"% of holder's portfolio" is MASS's weight in each manager's 13F, not the share of 908 Devices Inc. the manager owns.