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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 2021

Institutional positions in 908 Devices Inc. as of Jun 30, 2021. 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
74
+2 vs. Q1 2021
Shares held
11.7M
+3.12M (+36.5%) vs. Q1 2021
Total value
$451.9M
+$38.1M (+9.2%) vs. Q1 2021
New holders
20
25 more added
Sold out
18
21 more reduced

Compare with Q1 2021: 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 2021: 74 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 2021: $451.9M
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 2021

Shares, value and share of portfolio for each institution holding 908 Devices Inc.; share changes are against Q1 2021.

Institutions holding MASS in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.2,457,309$95.2M0.00%+1,633,500+198.3%Added
ARK Investment Management LLCSuperinvestorARK Invest2,454,357$95.1M0.18%+1,381,491+128.8%Added
Granahan Investment Management Inc571,850$22.2M0.41%+118,704+26.2%Added
Tao Capital Management LP568,981$22.0M5.06%−21,538−3.6%Reduced
Cormorant Asset Management, LP545,320$21.1M0.82%−20.0%Reduced
Vanguard Group Inc415,064$16.1M0.00%+81,355+24.4%Added
Casdin Capital, LLC406,502$15.8M0.40%00.0%Unchanged
FMR LLC373,299$14.5M0.00%−7,098−1.9%Reduced
Nicholas Investment Partners, LP357,858$13.9M0.87%+48,224+15.6%Added
State Street Corp349,415$13.5M0.00%+259,441+288.4%Added
Ameriprise Financial Inc345,485$13.4M0.00%+91,091+35.8%Added
Eventide Asset Management, LLC333,283$12.9M0.17%00.0%Unchanged
Sands Capital Management, LLC326,427$12.6M0.02%00.0%Unchanged
Primecap Management Co297,257$11.5M0.01%−31,343−9.5%Reduced
Nikko Asset Management Americas, Inc.241,013$9.18M0.04%+171,910+248.8%Added
Sumitomo Mitsui Trust Holdings, Inc.195,305$7.57M0.00%+168,295+623.1%Added
Pura Vida Investments, LLC161,059$6.24M0.45%+12,292+8.3%Added
Geode Capital Management, LLC128,207$4.97M0.00%−582−0.5%Reduced
M&G Investment Management Ltd126,903$4.95M0.03%+126,903New
Capital World Investors112,500$4.36M0.00%00.0%Unchanged
Rafferty Asset Management, LLC89,126$3.45M0.02%+89,126New
Northern Trust Corp77,822$3.02M0.00%−526−0.7%Reduced
Janus Henderson Group PLC51,682$2.00M0.00%−29,116−36.0%Reduced
Goldman Sachs Group Inc49,179$1.91M0.00%−1,418−2.8%Reduced
Platinum Investment Management Ltd49,160$1.91M0.04%+15,580+46.4%Added
Charles Schwab Investment Management Inc47,850$1.85M0.00%+1,666+3.6%Added
New York State Common Retirement Fund40,345$1.56M0.00%−652−1.6%Reduced
RTW Investments, LP40,000$1.55M0.02%00.0%Unchanged
Millennium Management LLC37,351$1.45M0.00%−136,911−78.6%Reduced
Bank of New York Mellon Corp33,566$1.30M0.00%+4,291+14.7%Added
Victory Capital Management Inc31,908$1.24M0.00%+7,321+29.8%Added
Meridian Financial Partners LLC34,124$1.09M0.74%+34,124New
Schonfeld Strategic Advisors LLC26,819$1.04M0.01%−10,355−27.9%Reduced
Morgan Stanley25,641$993.0K0.00%+5,230+25.6%Added
Bank of America Corp21,924$850.0K0.00%+455+2.1%Added
Weiss Multi-Strategy Advisers LLC17,903$694.0K0.02%+642+3.7%Added
Nuveen Asset Management, LLC17,414$675.0K0.00%−286−1.6%Reduced
Ensign Peak Advisors, Inc15,000$581.0K0.00%00.0%Unchanged
Swiss National Bank15,000$581.0K0.00%+15,000New
JPMorgan Chase & Co14,099$547.0K0.00%−35,470−71.6%Reduced
Voloridge Investment Management, LLC13,301$515.0K0.00%+13,301New
Tudor Investment Corp Et Al12,669$491.0K0.01%+12,669New
Caas Capital Management LP12,079$468.0K0.03%+2,079+20.8%Added
Personal Capital Advisors Corp10,467$406.0K0.00%+10,467New
Marshall Wace North America L.P.9,974$387.0K0.00%+43+0.4%Added
California State Teachers Retirement System9,970$386.0K0.00%−917−8.4%Reduced
Twinbeech Capital LP8,910$345.0K0.04%+8,910New
Sit Investment Associates Inc8,675$336.0K0.01%+8,675New
Engineers Gate Manager LP7,790$302.0K0.02%+7,790New
Jefferies Group LLC7,074$274.1K0.00%+7,074New
Qube Research & Technologies Ltd6,877$266.0K0.00%+1,618+30.8%Added
Virtu Financial LLC6,311$245.0K0.02%+2,029+47.4%Added
Legato Capital Management LLC5,705$221.0K0.03%+5,705New
Credit Suisse AG5,701$220.0K0.00%+5,701New
Dynamic Technology Lab Private Ltd5,250$203.0K0.02%+5,250New
Marshall Wace, LLP5,221$202.0K0.00%−51,549−90.8%Reduced
Charter Oak Capital Management, LLC5,000$194.0K0.02%00.0%Unchanged
Tower Research Capital LLC (TRC)4,973$193.0K0.01%+3,335+203.6%Added
Deutsche Bank AG4,753$184.0K0.00%−1,394−22.7%Reduced
Advisor Group Holdings, Inc.4,486$174.0K0.00%−5,040−52.9%Reduced
American International Group, Inc.4,062$157.0K0.00%−145−3.4%Reduced
UBS Group AG3,448$134.0K0.00%+1,065+44.7%Added
Itau Unibanco Holding S.A.968$38.0K0.00%+968New
Legal & General Group Plc788$31.0K0.00%+50+6.8%Added
Ameritas Investment Partners, Inc.587$23.0K0.00%00.0%Unchanged
GPS Wealth Strategies Group, LLC575$22.0K0.01%+575New
Royal Bank of Canada496$19.0K0.00%−246−33.2%Reduced
Citigroup Inc470$18.0K0.00%−120−20.3%Reduced
Wells Fargo & Company443$17.0K0.00%−2,704−85.9%Reduced
US Bancorp288$11.0K0.00%+242+526.1%Added
Baillie Gifford & Co249$10.0K0.00%+249New
Steward Partners Investment Advisory, LLC110$4.00K0.00%+110New
Toronto Dominion Bank30$1.00K0.00%+30New
Captrust Financial Advisors11$00.00%+11New
Price T Rowe Associates Inc0$00.00%−465,287−100.0%Sold out
Lord, Abbett & Co. LLC0$00.00%−172,285−100.0%Sold out
Federated Hermes, Inc.0$00.00%−80,000−100.0%Sold out
DekaBank Deutsche Girozentrale0$00.00%−60,000−100.0%Sold out
First Light Asset Management, LLC0$00.00%−20,700−100.0%Sold out
Laurion Capital Management LP0$00.00%−20,000−100.0%Sold out
TD Asset Management Inc0$00.00%−17,850−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−15,200−100.0%Sold out
Two Sigma Investments, LP0$00.00%−14,182−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−11,971−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−7,664−100.0%Sold out
Rhumbline Advisers0$00.00%−5,477−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−5,100−100.0%Sold out
MetLife Investment Management0$00.00%−3,696−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−2,701−100.0%Sold out
STRS Ohio0$00.00%−1,700−100.0%Sold out
Bank of Montreal0$00.00%−235−100.0%Sold out
State of Wyoming0$00.00%−9−100.0%Sold out