908 DEVICES INC

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MASS·65443P102·US·equity·Healthcare - Medical Devices-13D/G

MASS (908 DEVICES INC) is held by 64 institutional investors as of Q1 2026. Largest holders: ARK Investment Management LLC ($11.9M), BlackRock, Inc. ($10.8M), First Eagle Investment Management, LLC ($4.9M). Net institutional sentiment: Mixed.

64

Holders

Avg rating(5 Elite)

$60.4M

Total Value

35% (70)

Fund Consensus

22 buying - 41 selling

Smart Money Verdict

View all

42Weak MomentumSplit Signals

Institutional (13F)51

Insider (Form 4)21

Activist (13D/13G)52

Congressional (STOCK Act)

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See how MASS's score breaks down across 4 SEC sources

Holder Quality

5

★★★★★

Elite

22

★★★★

Strong

25

★★★

Solid

13

★★

Below

5

★

Weak

Held by 64 funds

5 elite

Who's Trading

InsiderBDBrown Christopher D.Sell $270KMay 28, 2026

InsiderGIGriffith Joseph H. IVSell $63KMay 28, 2026

ActivistKCKeith Crandell15.3%May 15, 2026

InsiderKJKenneweg JohnSell $148KMay 8, 2026

InsiderAIAWM Investment Company, Inc.Sell $25KMay 8, 2026

ActivistFLFirst Light Asset Management, LLC16.5%Feb 17, 2026

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13F: Mar 31, 2026Insider & Congress: Updated regularly

Positions (64)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
ARK Investment Management LLC	Decreased	1.9M(-2.0%)	$11.9M	0.1%	-77.97%	0
BlackRock, Inc.	Decreased	1.8M(-1.9%)	$10.8M	0.0%	+197.71%	0
First Eagle Investment Management, LLC	Increased	803,606(+28.8%)	$4.9M	0.0%	-4.11%	34
GEODE CAPITAL MANAGEMENT, LLC	Increased	695,455(+1.0%)	$4.3M	0.0%	-67.45%	27
STATE STREET CORP	Increased	625,892(+5.0%)	$3.8M	0.0%	-6.86%	28
MORGAN STANLEY	Decreased	373,258(-15.3%)	$2.3M	0.0%	+83.67%	0
Sumitomo Mitsui Trust Group, Inc.	Decreased	269,873(-6.3%)	$1.7M	0.0%	-76.96%	0
Amova Asset Management Americas, Inc.	Decreased	269,873(-6.3%)	$1.7M	0.0%	-77.55%	0
NORTHERN TRUST CORP	Increased	241,332(+4.8%)	$1.5M	0.0%	-72.79%	27
RENAISSANCE TECHNOLOGIES LLC	Increased	230,200(+3.6%)	$1.4M	0.0%	-7.61%	26
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	229,489(-4.8%)	$1.4M	0.0%	-66.77%	0
SOSquarepoint Ops LLC	Decreased	213,193(-2.5%)	$1.3M	0.0%	-1.55%	0
RAYMOND JAMES FINANCIAL INC	Decreased	176,520(-1.0%)	$1.1M	0.0%	-14.80%	0
SEI INVESTMENTS CO	Increased	164,894(+101.2%)	$1M	0.0%	+19.62%	40
Russell Investments Group, Ltd.	Increased	145,329(+6307.8%)	$889,417	0.0%	+8.69%	40
CITADEL ADVISORS LLC	Decreased	144,547(-45.3%)	$884,627	0.0%	+32.44%	0
MILLENNIUM MANAGEMENT LLC	Decreased	142,422(-9.9%)	$871,623	0.0%	+25.26%	0
Mitsubishi UFJ Asset Management Co., Ltd.	Decreased	132,466(-5.7%)	$810,692	0.0%	+2.53%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	118,751(-51.9%)	$725,742	0.0%	+11.59%	0
GOLDMAN SACHS GROUP INC	Decreased	111,212(-44.2%)	$680,617	0.0%	+60.73%	0

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Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer