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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 14 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.

Institutional holdersQ3 2025: 107 institutions
Q1 2021: 72 institutionsQ2 2021: 74 institutionsQ3 2021: 86 institutionsQ4 2021: 87 institutionsQ1 2022: 84 institutionsQ2 2022: 77 institutionsQ3 2022: 81 institutionsQ4 2022: 93 institutionsQ1 2023: 84 institutionsQ2 2023: 86 institutionsQ3 2023: 83 institutionsQ4 2023: 79 institutionsQ1 2024: 75 institutionsQ2 2024: 90 institutionsQ3 2024: 86 institutionsQ4 2024: 81 institutionsQ1 2025: 87 institutionsQ2 2025: 102 institutionsQ3 2025: 107 institutionsQ4 2025: 118 institutionsQ1 2026: 112 institutionsQ2 2026: 111 institutions
Value heldQ3 2025: $214.7M
Q1 2021: $413.8MQ2 2021: $451.9MQ3 2021: $519.5MQ4 2021: $490.2MQ1 2022: $383.7MQ2 2022: $396.7MQ3 2022: $359.9MQ4 2022: $165.4MQ1 2023: $188.0MQ2 2023: $145.8MQ3 2023: $140.8MQ4 2023: $247.1MQ1 2024: $156.5MQ2 2024: $100.4MQ3 2024: $64.8MQ4 2024: $36.9MQ1 2025: $92.3MQ2 2025: $173.6MQ3 2025: $214.7MQ4 2025: $137.3MQ1 2026: $171.0MQ2 2026: $244.1M
Institutions holding MASS and their total value by quarter
QuarterHoldersValue
Q2 2026111$244.1M
Q1 2026112$171.0M
Q4 2025118$137.3M
Q3 2025107$214.7M
Q2 2025102$173.6M
Q1 202587$92.3M
Q4 202481$36.9M
Q3 202486$64.8M
Q2 202490$100.4M
Q1 202475$156.5M
Q4 202379$247.1M
Q3 202383$140.8M
Q2 202386$145.8M
Q1 202384$188.0M
Q4 202293$165.4M
Q3 202281$359.9M
Q2 202277$396.7M
Q1 202284$383.7M
Q4 202187$490.2M
Q3 202186$519.5M
Q2 202174$451.9M
Q1 202172$413.8M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding 908 Devices Inc.; share changes are against Q2 2025.

Institutions holding MASS in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AWM Investment Company, Inc.5,199,924$45.6M4.27%00.0%Unchanged
First Light Asset Management, LLC2,510,496$22.0M2.07%+1,442,883+135.2%Added
State Street Corp2,298,648$20.1M0.00%+11,513+0.5%Added
ARK Investment Management LLCSuperinvestorARK Invest1,953,772$17.1M0.10%−694,506−26.2%Reduced
BlackRock, Inc.1,756,205$15.4M0.00%−34,640−1.9%Reduced
Vanguard Group Inc1,421,732$12.5M0.00%−9,383−0.7%Reduced
GM Advisory Group, Inc.678,086$5.94M0.25%−487,205−41.8%Reduced
Geode Capital Management, LLC672,089$5.89M0.00%+13,486+2.0%Added
First Eagle Investment Management, LLC603,962$5.29M0.01%+336,584+125.9%Added
Morgan Stanley571,680$5.01M0.00%+17,435+3.1%Added
Tao Capital Management LP568,981$4.98M3.77%00.0%Unchanged
Essex Investment Management Co LLC493,949$4.33M0.66%+16,607+3.5%Added
Marshall Wace, LLP439,639$3.85M0.00%−209,157−32.2%Reduced
Dimensional Fund Advisors LP324,788$2.84M0.00%−38,219−10.5%Reduced
Sumitomo Mitsui Trust Holdings, Inc.318,350$2.79M0.00%−79,906−20.1%Reduced
Nikko Asset Management Americas, Inc.318,350$2.79M0.03%−76,025−19.3%Reduced
Bank of America Corp270,069$2.37M0.00%−93,148−25.6%Reduced
Charles Schwab Investment Management Inc241,119$2.11M0.00%+8,846+3.8%Added
Needham Investment Management LLC222,000$1.94M0.14%+72,000+48.0%Added
Renaissance Technologies LLC209,300$1.83M0.00%+35,200+20.2%Added
Northern Trust Corp208,032$1.82M0.00%−3,013−1.4%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.202,175$1.77M0.00%−10,339−4.9%Reduced
Prescott Group Capital Management, L.L.C.190,005$1.66M0.18%00.0%Unchanged
Royal Bank of Canada184,219$1.61M0.00%−7,106−3.7%Reduced
Raymond James Financial Inc183,282$1.61M0.00%+176,616+2,649.5%Added
Legato Capital Management LLC142,055$1.24M0.14%00.0%Unchanged
Squarepoint Ops LLC133,774$1.17M0.00%+133,774New
AQR Capital Management LLC105,179$921.4K0.00%+10,187+10.7%Added
Meros Investment Management, LP104,323$913.9K0.39%+34,853+50.2%Added
Schonfeld Strategic Advisors LLC103,025$902.5K0.01%−133,413−56.4%Reduced
Parkman Healthcare Partners LLC100,368$879.2K0.10%+368+0.4%Added
Nuveen, LLC99,988$875.9K0.00%00.0%Unchanged
Bank of Montreal90,852$795.9K0.00%−107−0.1%Reduced
EAM Investors, LLC86,595$758.6K0.09%+14,179+19.6%Added
Goldman Sachs Group Inc79,690$698.1K0.00%+10,411+15.0%Added
Two Sigma Investments, LP72,327$633.6K0.00%+1,333+1.9%Added
Cassaday & Co Wealth Management LLC71,629$627.5K0.01%+71,629New
LPL Financial LLC69,173$606.0K0.00%−11,330−14.1%Reduced
Bruce & Co., Inc.68,286$598.2K0.19%00.0%Unchanged
Campbell & CO Investment Adviser LLC66,481$582.4K0.04%−42,208−38.8%Reduced
Bank of New York Mellon Corp66,223$580.1K0.00%+8,779+15.3%Added
Granahan Investment Management Inc64,338$563.6K0.02%+64,338New
UBS Group AG60,664$531.4K0.00%−1,062−1.7%Reduced
American Century Companies Inc56,108$491.5K0.00%−188−0.3%Reduced
Davy Global Fund Management Ltd52,787$462.4K0.03%+14,601+38.2%Added
Cubist Systematic Strategies, LLC47,934$419.9K0.01%+47,934New
Alliancebernstein L.P.45,850$401.6K0.00%−9,940−17.8%Reduced
XTX Topco Ltd45,036$394.5K0.02%+45,036New
Old Port Advisors38,629$338.4K0.09%−35,000−47.5%Reduced
Barclays PLC38,585$338.0K0.00%−11,171−22.5%Reduced
FourThought Financial Partners, LLC37,334$327.0K0.03%+37,334New
Rhumbline Advisers36,028$315.6K0.00%−388−1.1%Reduced
Millennium Management LLC31,063$272.1K0.00%−51,636−62.4%Reduced
Bridgeway Capital Management, LLC30,500$267.2K0.01%00.0%Unchanged
D. E. Shaw & Co., Inc.25,603$224.3K0.00%−160,612−86.3%Reduced
Susquehanna International Group, LLP23,778$208.3K0.00%−18,683−44.0%Reduced
Concurrent Investment Advisors, LLC23,470$205.6K0.00%00.0%Unchanged
Trexquant Investment LP21,337$186.9K0.00%+21,337New
49 Wealth Management, LLC19,188$168.1K0.02%00.0%Unchanged
Graham Capital Management, L.P.18,413$161.3K0.01%+18,413New
Quantinno Capital Management LP18,140$158.9K0.00%+3,442+23.4%Added
Wells Fargo & Company17,795$155.9K0.00%+2,844+19.0%Added
SG Americas Securities, LLC17,651$155.0K0.00%−6,213−26.0%Reduced
Acadian Asset Management LLC16,878$147.0K0.00%+16,878New
Cresset Asset Management, LLC15,666$137.2K0.00%+3,921+33.4%Added
Invesco Ltd.14,249$124.8K0.00%−78,647−84.7%Reduced
Price T Rowe Associates Inc13,827$122.0K0.00%+1,417+11.4%Added
Intech Investment Management LLC13,236$115.9K0.00%−3,951−23.0%Reduced
Axq Capital, LP13,045$114.3K0.04%+13,045New
STRS Ohio12,900$113.0K0.00%+12,900New
Mirae Asset Global ETFs Holdings Ltd.12,700$111.3K0.00%−2,277−15.2%Reduced
Brevan Howard Capital Management LP11,600$101.6K0.00%+11,600New
JPMorgan Chase & Co11,238$98.4K0.00%−2,010−15.2%Reduced
FMR LLC10,793$94.5K0.00%+16+0.1%Added
Russell Investments Group, Ltd.10,640$93.2K0.00%+10,640New
MetLife Investment Management10,366$90.8K0.00%−7,455−41.8%Reduced
Police & Firemen's Retirement System of New Jersey8,523$74.7K0.00%+2,901+51.6%Added
New York State Common Retirement Fund8,487$74.3K0.00%00.0%Unchanged
Daiwa Securities Group Inc.7,749$68.0K0.00%−741−8.7%Reduced
CWM, LLC6,846$60.0K0.00%−1,029−13.1%Reduced
Allworth Financial LP5,449$47.7K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA5,374$47.1K0.00%−15,916−74.8%Reduced
Antipodes Partners Ltd5,227$45.8K0.00%−1,331−20.3%Reduced
Nisa Investment Advisors, LLC3,784$33.1K0.00%00.0%Unchanged
Farther Finance Advisors, LLC3,233$28.3K0.00%+3,233New
Legal & General Group Plc2,918$25.6K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,795$24.5K0.00%00.0%Unchanged
Citigroup Inc2,260$19.8K0.00%−8,644−79.3%Reduced
California State Teachers Retirement System1,722$15.1K0.00%+2+0.1%Added
Signaturefd, LLC1,447$12.7K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,147$10.0K0.00%−3,401−74.8%Reduced
Versant Capital Management, Inc1,070$9.37K0.00%00.0%Unchanged
Amalgamated Bank766$7.00K0.00%00.0%Unchanged
GAMMA Investing LLC679$5.95K0.00%+95+16.3%Added
Deutsche Bank AG534$4.68K0.00%−20,670−97.5%Reduced
Sterling Capital Management LLC493$4.32K0.00%+269+120.1%Added
Optiver Holding B.V.466$4.08K0.00%+466New
EverSource Wealth Advisors, LLC375$3.29K0.00%+199+113.1%Added
SRS Capital Advisors, Inc.278$2.44K0.00%+33+13.5%Added
Essential Partners LLC218$1.91K0.00%00.0%Unchanged