Stock Ownership/MCY

MERCURY GENL CORP NEW (MCY): Ownership & Insider Activity

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

Reported Holders
15
13F filers
Aggregate Value
$233.1M
Across holders
Last Price
$106.28
2026-08-24
Sector
Financials
GICS
Quarterly fund activity9 increased6 reduced6 exited
Full exits: Point72 Asset Management, L.P., CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC, TUDOR INVESTMENT CORP ET AL, Squarepoint Ops LLC, Man Group plc
Institutional Holders of MCY
↗
15 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund782K$83.3M35.8%0.1%Reduced$-4.5MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund576K$61.4M26.3%0.0%Added+$104KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund344K$36.7M15.7%0.0%Reduced+$36.7MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund211K$22.4M9.6%0.0%Reduced$-8.4MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund74K$7.8M3.4%0.0%Reduced$-4.9MQ2 2026
Lighthouse Investment Partners, LLC
CIK 0001600344
Hedge Fund56K$6.0M2.6%0.2%Added+$5.6MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund46K$4.9M2.1%0.0%Reduced$-20.1MQ2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
Hedge Fund42K$4.5M1.9%0.0%Reduced$-4.7MQ2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund16K$1.7M0.7%0.0%Added—Q2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund13K$1.4M0.6%0.0%Added+$691KQ2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$83.3M· 35.8% of total· 0.1% port· 782K sh· $-4.5M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$61.4M· 26.3% of total· 0.0% port· 576K sh· +$104K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$36.7M· 15.7% of total· 0.0% port· 344K sh· +$36.7M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$22.4M· 9.6% of total· 0.0% port· 211K sh· $-8.4M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$7.8M· 3.4% of total· 0.0% port· 74K sh· $-4.9M QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$6.0M· 2.6% of total· 0.2% port· 56K sh· +$5.6M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$4.9M· 2.1% of total· 0.0% port· 46K sh· $-20.1M QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$4.5M· 1.9% of total· 0.0% port· 42K sh· $-4.7M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$1.7M· 0.7% of total· 0.0% port· 16K sh· — QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$1.4M· 0.6% of total· 0.0% port· 13K sh· +$691K QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$1.3M· 0.5% of total· 0.0% port· 12K sh· +$95K QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$1.2M· 0.5% of total· 0.0% port· 11K sh· — QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$327K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
ArrowMark Colorado Holdings LLCAdded
Hedge Fund
$219K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$26K· 0.0% of total· 0.0% port· 240 sh· +$24K QoQ· Q2 2026
1–10 of 15
1 / 2
Loading recent insider activity…
← Stock ownership