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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, Q2 2025

Institutional positions in 908 Devices Inc. as of Jun 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
102
+15 vs. Q1 2025
Shares held
24.3M
+3.72M (+18.0%) vs. Q1 2025
Total value
$173.6M
+$81.2M (+88.0%) vs. Q1 2025
New holders
27
36 more added
Sold out
12
25 more reduced

Compare with Q1 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 holdersQ2 2025: 102 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 heldQ2 2025: $173.6M
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, Q2 2025

Shares, value and share of portfolio for each institution holding 908 Devices Inc.; share changes are against Q1 2025.

Institutions holding MASS in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AWM Investment Company, Inc.5,199,924$37.1M4.16%00.0%Unchanged
ARK Investment Management LLCSuperinvestorARK Invest2,648,278$18.9M0.14%−251,069−8.7%Reduced
State Street Corp2,287,135$16.3M0.00%+1,819,270+388.8%Added
BlackRock, Inc.1,790,845$12.8M0.00%+43,861+2.5%Added
Vanguard Group Inc1,431,115$10.2M0.00%+68,945+5.1%Added
GM Advisory Group, Inc.1,165,291$8.31M0.41%+1,165,291New
First Light Asset Management, LLC1,067,613$7.61M0.99%−633,482−37.2%Reduced
Geode Capital Management, LLC658,603$4.70M0.00%+68,764+11.7%Added
Marshall Wace, LLP648,796$4.63M0.01%+507,562+359.4%Added
Tao Capital Management LP568,981$4.06M2.97%00.0%Unchanged
Morgan Stanley554,245$3.95M0.00%+22,636+4.3%Added
Essex Investment Management Co LLC477,342$3.40M0.62%−3,207−0.7%Reduced
Sumitomo Mitsui Trust Holdings, Inc.398,256$2.84M0.00%−14,318−3.5%Reduced
Nikko Asset Management Americas, Inc.394,375$2.81M0.03%−18,199−4.4%Reduced
Bank of America Corp363,217$2.59M0.00%+250,311+221.7%Added
Dimensional Fund Advisors LP363,007$2.59M0.00%−21,325−5.5%Reduced
First Eagle Investment Management, LLC267,378$1.91M0.00%+267,378New
Schonfeld Strategic Advisors LLC236,438$1.69M0.01%+236,438New
Charles Schwab Investment Management Inc232,273$1.66M0.00%+20,043+9.4%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.212,514$1.52M0.00%+212,514New
Northern Trust Corp211,045$1.50M0.00%+11,024+5.5%Added
Royal Bank of Canada191,325$1.36M0.00%+187,968+5,599.3%Added
Prescott Group Capital Management, L.L.C.190,005$1.35M0.16%00.0%Unchanged
D. E. Shaw & Co., Inc.186,215$1.33M0.00%−153,500−45.2%Reduced
Renaissance Technologies LLC174,100$1.24M0.00%+29,500+20.4%Added
Needham Investment Management LLC150,000$1.07M0.09%−50,000−25.0%Reduced
Legato Capital Management LLC142,055$1.01M0.12%−387−0.3%Reduced
Campbell & CO Investment Adviser LLC108,689$775.0K0.05%+108,689New
Parkman Healthcare Partners LLC100,000$713.0K0.08%+100,000New
Nuveen, LLC99,988$712.9K0.00%−6,963−6.5%Reduced
AQR Capital Management LLC94,992$677.3K0.00%+13,434+16.5%Added
Invesco Ltd.92,896$662.3K0.00%−556,734−85.7%Reduced
Bank of Montreal90,959$648.5K0.00%+681+0.8%Added
Millennium Management LLC82,699$589.6K0.00%+82,699New
LPL Financial LLC80,503$574.0K0.00%−2,506−3.0%Reduced
Manatuck Hill Partners, LLC80,000$570.4K0.21%+80,000New
Old Port Advisors73,629$525.0K0.14%+73,629New
EAM Investors, LLC72,416$516.3K0.08%+72,416New
Two Sigma Investments, LP70,994$506.2K0.00%+1,067+1.5%Added
Meros Investment Management, LP69,470$495.3K0.24%+69,470New
Goldman Sachs Group Inc69,279$494.0K0.00%−5,377−7.2%Reduced
Bruce & Co., Inc.68,286$486.9K0.16%00.0%Unchanged
UBS Group AG61,726$440.1K0.00%+24,603+66.3%Added
Bank of New York Mellon Corp57,444$409.6K0.00%+5,529+10.7%Added
American Century Companies Inc56,296$401.4K0.00%+10,482+22.9%Added
Alliancebernstein L.P.55,790$397.8K0.00%+14,600+35.4%Added
Barclays PLC49,756$354.8K0.00%+25,725+107.0%Added
Jane Street Group, LLC47,850$341.2K0.00%+47,850New
Susquehanna International Group, LLP42,461$302.7K0.00%−23,266−35.4%Reduced
Davy Global Fund Management Ltd38,186$272.3K0.02%+15,324+67.0%Added
Rhumbline Advisers36,416$259.6K0.00%+1,894+5.5%Added
Bridgeway Capital Management, LLC30,500$217.5K0.01%00.0%Unchanged
Zacks Investment Management25,720$183.4K0.00%+13,332+107.6%Added
SG Americas Securities, LLC23,864$170.0K0.00%+3,586+17.7%Added
Concurrent Investment Advisors, LLC23,470$167.3K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA21,290$151.8K0.00%−2,940−12.1%Reduced
Deutsche Bank AG21,204$151.2K0.00%+534+2.6%Added
49 Wealth Management, LLC19,188$136.8K0.01%−26,550−58.0%Reduced
Dynamic Technology Lab Private Ltd18,537$132.0K0.02%+18,537New
MetLife Investment Management17,821$127.1K0.00%+17,821New
Intech Investment Management LLC17,187$122.5K0.00%+17,187New
Mirae Asset Global ETFs Holdings Ltd.14,977$106.8K0.00%+1,020+7.3%Added
Wells Fargo & Company14,951$106.6K0.00%+932+6.6%Added
Quantinno Capital Management LP14,698$104.8K0.00%+14,698New
JPMorgan Chase & Co13,248$94.5K0.00%+714+5.7%Added
Price T Rowe Associates Inc12,410$89.0K0.00%00.0%Unchanged
Cresset Asset Management, LLC11,745$83.7K0.00%−442−3.6%Reduced
Walleye Capital LLC11,504$82.0K0.00%+11,504New
Catalyst Funds Management Pty Ltd11,400$81.3K0.02%+11,400New
Citigroup Inc10,904$77.7K0.00%−6,579−37.6%Reduced
Manufacturers Life Insurance Company, The10,869$77.5K0.00%+10,869New
FMR LLC10,777$76.8K0.00%+4,503+71.8%Added
Daiwa Securities Group Inc.8,490$61.0K0.00%+8,490New
New York State Common Retirement Fund8,487$60.5K0.00%00.0%Unchanged
CWM, LLC7,875$56.0K0.00%+912+13.1%Added
Raymond James Financial Inc6,666$47.5K0.00%+6,666New
Antipodes Partners Ltd6,558$46.8K0.00%+2,176+49.7%Added
Police & Firemen's Retirement System of New Jersey5,622$40.1K0.00%00.0%Unchanged
Allworth Financial LP5,449$38.9K0.00%+180+3.4%Added
Tower Research Capital LLC (TRC)4,548$32.4K0.00%−3,975−46.6%Reduced
Nisa Investment Advisors, LLC3,784$27.0K0.00%+3,100+453.2%Added
Larson Financial Group LLC3,467$24.7K0.00%−171−4.7%Reduced
Legal & General Group Plc2,918$20.8K0.00%+1,097+60.2%Added
Ameritas Investment Partners, Inc.2,795$19.9K0.00%+1,353+93.8%Added
Clear Street Markets LLC2,277$16.2K0.01%+2,277New
California State Teachers Retirement System1,720$12.3K0.00%00.0%Unchanged
Signaturefd, LLC1,447$10.3K0.00%00.0%Unchanged
Versant Capital Management, Inc1,070$7.63K0.00%−919−46.2%Reduced
Kozak & Associates, Inc.750$5.30K0.00%+750New
Amalgamated Bank766$5.00K0.00%00.0%Unchanged
GAMMA Investing LLC584$4.16K0.00%+584New
SRS Capital Advisors, Inc.245$1.75K0.00%+245New
The PNC Financial Services Group, Inc.237$1.69K0.00%+111+88.1%Added
Sterling Capital Management LLC224$1.60K0.00%−150−40.1%Reduced
Essential Partners LLC218$1.55K0.00%+218New
Rise Advisors, LLC207$1.48K0.00%00.0%Unchanged
South State Corp.200$1.43K0.00%00.0%Unchanged
IFP Advisors, Inc0$1.37K0.00%0New
EverSource Wealth Advisors, LLC176$1.25K0.00%−307−63.6%Reduced
Advisor Group Holdings, Inc.125$8910.00%−125−50.0%Reduced