MARKEL GROUP INC (MKL): Ownership & Insider Activity

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

Reported Holders
30
13F filers
Aggregate Value
$1.7B
Across holders
Last Price
$1817.30
2026-08-24
Sector
Financials
GICS
Quarterly fund activity20 increased10 reduced3 exited
Full exits: CAXTON ASSOCIATES LLP, Lighthouse Investment Partners, LLC, Bridgewater Associates, LP
Institutional Holders of MKL
30 holders
ManagerTypeSharesMarket Value% of Total% of PortfolioActionQoQ ChangeQuarter
Select Equity Group, L.P.
CIK 0001592643
Hedge Fund332K$647.8M38.6%3.2%Reduced$-89.8MQ2 2026
BAILLIE GIFFORD & CO
CIK 0001088875
Institutional Manager158K$308.4M18.4%0.3%Reduced+$170.1MQ2 2026
JANA Partners Management, LP
CIK 0001998597
Hedge Fund77K$149.9M8.9%7.9%AddedQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund37K$72.0M4.3%0.0%Added+$49.6MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund36K$70.9M4.2%0.0%Added+$70.9MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund33K$65.2M3.9%0.1%Reduced$-74.8MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund30K$58.1M3.5%0.0%Added+$28.6MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund27K$52.7M3.1%0.2%Added+$51.8MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund25K$49.4M2.9%0.1%Reduced$-18.2MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund20K$38.3M2.3%0.0%Added+$36.6MQ2 2026
Select Equity Group, L.P.Reduced
Hedge Fund
$647.8M· 38.6% of total· 3.2% port· 332K sh· $-89.8M QoQ· Q2 2026
BAILLIE GIFFORD & COReduced
Institutional Manager
$308.4M· 18.4% of total· 0.3% port· 158K sh· +$170.1M QoQ· Q2 2026
JANA Partners Management, LPAdded
Hedge Fund
$149.9M· 8.9% of total· 7.9% port· 77K sh· QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$72.0M· 4.3% of total· 0.0% port· 37K sh· +$49.6M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$70.9M· 4.2% of total· 0.0% port· 36K sh· +$70.9M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$65.2M· 3.9% of total· 0.1% port· 33K sh· $-74.8M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$58.1M· 3.5% of total· 0.0% port· 30K sh· +$28.6M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$52.7M· 3.1% of total· 0.2% port· 27K sh· +$51.8M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$49.4M· 2.9% of total· 0.1% port· 25K sh· $-18.2M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$38.3M· 2.3% of total· 0.0% port· 20K sh· +$36.6M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$29.6M· 1.8% of total· 0.1% port· 15K sh· +$11.7M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$19.9M· 1.2% of total· 0.0% port· 10K sh· $-5.5M QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$15.6M· 0.9% of total· 0.0% port· 8K sh· QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$15.4M· 0.9% of total· 0.0% port· 8K sh· +$8.2M QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$15.2M· 0.9% of total· 0.0% port· 8K sh· $-1.3M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$13.9M· 0.8% of total· 0.0% port· 7K sh· +$13.4M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$11.6M· 0.7% of total· 0.0% port· 6K sh· $-239.5M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$8.6M· 0.5% of total· 0.0% port· 4K sh· +$6.6M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$7.8M· 0.5% of total· 0.0% port· 4K sh· QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$7.5M· 0.4% of total· 0.0% port· 4K sh· +$2.6M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$6.1M· 0.4% of total· 0.0% port· 3K sh· $-5.9M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$3.3M· 0.2% of total· 0.0% port· 2K sh· +$3.1M QoQ· Q2 2026
Ancora Advisors, LLCAdded
Hedge Fund
$2.9M· 0.2% of total· 0.1% port· 2K sh· +$2.1M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 783 sh· QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 772 sh· QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$1.3M· 0.1% of total· 0.0% port· 643 sh· $-262K QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$1.2M· 0.1% of total· 0.0% port· 630 sh· QoQ· Q2 2026
Ruffer LLPAdded
Hedge Fund
$821K· 0.0% of total· 0.0% port· 421 sh· +$21K QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$473K· 0.0% of total· 0.0% port· 242 sh· $-29K QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$406K· 0.0% of total· 0.0% port· 208 sh· +$21K QoQ· Q2 2026
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