Stock Ownership/MASS

908 DEVICES INC (MASS): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in MASS · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
9
13F filers
Aggregate Value
$12.6M
Across holders
Last Price
$10.92
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity5 increased4 reduced2 exited
Full exits: MILLENNIUM MANAGEMENT LLC, TWO SIGMA INVESTMENTS, LP
Institutional Holders of MASS
↗
9 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
First Eagle Investment Management, LLC
CIK 0001325447
Institutional Manager930K$8.1M64.3%0.0%Added+$1.1MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund192K$1.7M13.3%0.0%Reduced$-333KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund104K$904K7.2%0.0%Reduced+$898KQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund75K$656K5.2%0.0%Added—Q2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund63K$546K4.3%0.0%Reduced+$76KQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund38K$328K2.6%0.0%Reduced$-1.5MQ2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund21K$180K1.4%0.0%Added—Q2 2026
Magnetar Financial LLC
CIK 0001352851
Hedge Fund14K$120K1.0%0.0%Added—Q2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund11K$97K0.8%0.0%Added—Q2 2026
First Eagle Investment Management, LLCAdded
Institutional Manager
$8.1M· 64.3% of total· 0.0% port· 930K sh· +$1.1M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$1.7M· 13.3% of total· 0.0% port· 192K sh· $-333K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$904K· 7.2% of total· 0.0% port· 104K sh· +$898K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$656K· 5.2% of total· 0.0% port· 75K sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$546K· 4.3% of total· 0.0% port· 63K sh· +$76K QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$328K· 2.6% of total· 0.0% port· 38K sh· $-1.5M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$180K· 1.4% of total· 0.0% port· 21K sh· — QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$120K· 1.0% of total· 0.0% port· 14K sh· — QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$97K· 0.8% of total· 0.0% port· 11K sh· — QoQ· Q2 2026
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