InvestorLens

MASS — 908 DEVICES INC

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About 908 DEVICES INC (MASS)

908 DEVICES INC (MASS) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Cathie Wood (ARK Investment Management), valued at $17M. Across recent filings, tracked investors recorded 5 new positions, 2 increased, 2 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in MASS

78
/100
Institutional Accumulation
Added / Increased7
Reduced2
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track MASS

27
/100
Emerging Interest
4investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

MASS Ownership Composition

How 908 DEVICES INC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Growth Funds
85% of tracked value
Institutions
4
tracked investors
Total Reported
$14M
combined 13F value
Sectors3
  • Growth Funds85.3%
  • Other12.6%
  • Hedge Funds2.1%
Growth Funds(1)
85.3%
Other(2)
12.6%
Hedge Funds(1)
2.1%

Tracked investors reporting MASS

  • Cathie WoodMar 31, 2026
    ARK Investment Management
    Shares
    1.9M
    Value
    $11.9M
    % Portfolio
    0.09%
  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    144.5K
    Value
    $884.6K
    % Portfolio
    0.00%
  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    142.4K
    Value
    $871.6K
    % Portfolio
    0.00%
  • Steve CohenDec 31, 2025
    Point72 Asset Management
    Shares
    55.9K
    Value
    $293.7K
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold MASS?
4 tracked institutional investors disclosed a position in MASS (908 DEVICES INC) in their most recent 13F filing.
Who is the largest institutional holder of MASS?
Cathie Wood, ARK Investment Management, holds the largest disclosed position in MASS, valued at $17M.
Did institutional ownership of MASS increase or decrease?
Across recent 13F filings, tracked investors recorded 5 new positions, 2 increased, 2 reduced, and 0 fully exited MASS.
Where does this MASS ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.