908 DevicesMASS
13F holders, Q2 2026 (June 30)111holders −1
13new positions
11sold out
5famous investors
$8.70avg. 13F price*
At the end of Q2 2026, 111 institutions reported holding 908 Devices Inc. (MASS) in their 13F filings, down 1 from Q1 2026. 13 opened new positions and 11 sold out. The largest holders were First Light Asset Management, LLC ($54.7M), AWM Investment Company, Inc. ($42.5M) and ARK Investment Management ($17.6M). 5 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 David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- 908 Devices Inc.
- CUSIP
- 65443P102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $2.2M |
| Exits | 11 | $6.0M |
All 13F filers, Q1 2026 → Q2 2026: 2,546,679 shares bought and 2,145,023 shares sold, net +401,656 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 111 holders
| First Light Asset Management, LLC | 3.32% | Add +3.5% | 6,282,804 | $54.7M |
| AWM Investment Company, Inc. | 3.68% | Reduce -6.2% | 4,879,773 | $42.5M |
| ARK Investment Management | 0.11% | Add +4.2% | 2,027,920 | $17.6M |
| BlackRock, Inc. | 0.00% | Add +10.0% | 1,944,236 | $16.9M |
| Needham Investment Management LLC | 0.48% | Add +46.8% | 1,820,620 | $15.8M |
| Vanguard Capital Management LLC | 0.00% | Add +15.4% | 1,291,570 | $11.2M |
| First Eagle Investment Management, LLC | 0.01% | Add +15.7% | 929,985 | $8.1M |
| Geode Capital Management, LLC | 0.00% | Add +9.5% | 761,797 | $6.6M |
| Granahan Investment Management, LLC | 0.21% | Reduce -0.4% | 692,092 | $6.0M |
| State Street Corp. | 0.00% | Reduce -3.1% | 606,560 | $5.3M |
| Essex Investment Management Co. LLC | 0.54% | Reduce -4.3% | 470,244 | $4.1M |
| Morgan Stanley | 0.00% | Add +8.3% | 404,078 | $3.5M |
| Prescott Group Capital Management, L.L.C. | 0.27% | No change | 361,595 | $3.1M |
| Meros Investment Management, LP | 1.00% | Reduce -0.1% | 361,368 | $3.1M |
| American Century Companies Inc. | 0.00% | Add +543.8% | 359,848 | $3.1M |
| HighMark Wealth Management LLC | 0.99% | Add +6.4% | 339,783 | $3.0M |
| Northern Trust Corp. | 0.00% | Add +10.4% | 266,417 | $2.3M |
| Bank of America Corp. | 0.00% | Add +901.0% | 251,027 | $2.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.9% | 233,892 | $2.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -15.3% | 228,681 | $2.0M |
| Amova Asset Management Americas, Inc. | 0.03% | Reduce -15.3% | 228,681 | $2.0M |
| Vanguard Portfolio Management LLC | 0.00% | Add +19.0% | 194,858 | $1.7M |
| Renaissance Technologies | 0.00% | Reduce -16.6% | 191,900 | $1.7M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +3.2% | 186,056 | $1.6M |
| Raymond James Financial Inc. | 0.00% | Reduce -5.2% | 167,348 | $1.5M |
| Legato Capital Management LLC | 0.11% | Add +3.0% | 158,119 | $1.4M |
| Russell Investments Group, Ltd. | 0.00% | Add +3.0% | 149,655 | $1.3M |
| Nuveen, LLC | 0.00% | Add +40.2% | 141,727 | $1.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +4.8% | 124,498 | $1.1M |
| Campbell & CO Investment Adviser LLC | 0.05% | Add +274.9% | 111,190 | $967K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -16.5% | 110,557 | $962K |
| Nano Cap New Millennium Growth Fund L P | 0.72% | Reduce -10.4% | 107,500 | $935K |
| AQR Capital Management | 0.00% | Reduce -0.5% | 103,909 | $904K |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.05% | Add +9.9% | 98,689 | $859K |
| Bank of Montreal | 0.00% | Reduce -0.0% | 87,346 | $760K |
| Sei Investments Co. | 0.00% | Reduce -52.9% | 77,719 | $676K |
| UBS Group AG | 0.00% | Reduce -17.1% | 77,416 | $674K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -31.5% | 76,230 | $663K |
| D. E. Shaw & Co. | 0.00% | New | 75,446 | $656K |
| Bank of New York Mellon Corp | 0.00% | Add +23.2% | 72,758 | $633K |
| Acadian Asset Management LLC | 0.00% | New | 70,374 | $609K |
| Bruce & Co., Inc. | 0.16% | No change | 68,286 | $594K |
| Citadel Advisors | 0.00% | Reduce -56.6% | 62,747 | $546K |
| LPL Financial LLC | 0.00% | Reduce -18.2% | 55,451 | $482K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 50,500 | $439K |
| Gsa Capital Partners LLP | 0.03% | Reduce -80.4% | 49,160 | $428K |
| Old Port Advisors | 0.07% | No change | 38,629 | $336K |
| Squarepoint Ops LLC | 0.00% | Reduce -82.3% | 37,739 | $328K |
| Rhumbline Advisers | 0.00% | Add +6.5% | 36,791 | $320K |
| Quantinno Capital Management LP | 0.00% | Add +31.2% | 31,131 | $271K |
| Deutsche Bank AG | 0.00% | Add +54.2% | 28,412 | $247K |
| Alliancebernstein L.P. | 0.00% | Add +19.3% | 39,550 | $242K |
| State of Wisconsin Investment Board | 0.00% | Add +3.7% | 27,170 | $236K |
| Wells Fargo & Company | 0.00% | Add +132.6% | 24,372 | $212K |
| Susquehanna International Group, LLP | 0.00% | Reduce -30.9% | 23,374 | $203K |
| Brevan Howard Capital Management LP | 0.00% | New | 20,692 | $180K |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.2% | 20,387 | $178K |
| FMR LLC | 0.00% | Add +84.0% | 19,399 | $169K |
| MetLife Investment Management, LLC | 0.00% | Add +1.6% | 17,292 | $150K |
| Cresset Asset Management, LLC | 0.00% | No change | 16,343 | $142K |
| Invesco Ltd. | 0.00% | Add +5.9% | 14,960 | $130K |
| Graham Capital Management, L.P. | 0.01% | Add +11.9% | 14,827 | $129K |
| Pier 88 Investment Partners LLC | 0.21% | New | 14,200 | $124K |
| Magnetar Financial LLC | 0.00% | New | 13,815 | $120K |
| Citigroup Inc. | 0.00% | Add +839.8% | 13,429 | $117K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.9% | 13,401 | $117K |
| JPMorgan Chase & Co. | 0.00% | Add +11.1% | 12,559 | $111K |
| Gainline Financial Partners, LLC | 0.10% | — | 12,338 | $107K |
| Advyzon Investment Management, LLC | 0.01% | New | 12,338 | $107K |
| Occudo Quantitative Strategies LP | 0.01% | New | 12,256 | $107K |
| Concurrent Investment Advisors, LLC | 0.00% | No change | 11,903 | $104K |
| PCM Encore, LLC | 0.02% | No change | 11,830 | $103K |
| Jane Street Group, LLC | 0.00% | Reduce -20.0% | 11,445 | $100K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 11,134 | $97K |
| Axq Capital, LP | 0.01% | New | 10,704 | $93K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 11,325 | $92K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 10,286 | $89K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 8,523 | $74K |
| New York State Common Retirement Fund | 0.00% | No change | 8,487 | $74K |
| Osaic Holdings, Inc. | 0.00% | Add +10.3% | 5,625 | $49K |
| Barclays PLC | 0.00% | Add +2.6% | 5,106 | $44K |
| BNP Paribas Financial Markets | 0.00% | Reduce -26.6% | 4,362 | $38K |
| Royal Bank of Canada | 0.00% | Add +898.8% | 4,175 | $37K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | No change | 4,180 | $36K |
| ANTIPODES PARTNERS Ltd | 0.00% | Reduce -9.3% | 3,994 | $35K |
| Allworth Financial LP | 0.00% | Reduce -36.9% | 3,373 | $29K |
| Legal & General Group Plc | 0.00% | Add +22.4% | 3,049 | $27K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,795 | $24K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | No change | 1,536 | $13K |
| Signaturefd, LLC | 0.00% | Reduce -26.4% | 1,447 | $13K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -72.6% | 1,134 | $10K |
| Versant Capital Management, Inc | 0.00% | No change | 1,070 | $9K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 684 | $6K |
| GAMMA Investing LLC | 0.00% | Add +10.2% | 668 | $6K |
| Parallel Advisors, LLC | 0.00% | Reduce -67.3% | 634 | $6K |
| Sterling Capital Management LLC | 0.00% | Add +68.7% | 587 | $5K |
| Federated Hermes, Inc. | 0.00% | Add +41.7% | 510 | $4K |
| Arax Advisory Partners | 0.00% | New | 405 | $4K |
| California State Teachers Retirement System | 0.00% | Reduce -73.8% | 389 | $3K |
| Summit Securities Group LLC | 0.00% | New | 229 | $2K |
"% of holder's portfolio" is MASS's weight in each manager's 13F, not the share of 908 Devices Inc. the manager owns.