Stock Ownership/THG

HANOVER INS GROUP INC (THG): Ownership & Insider Activity

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

Reported Holders
21
13F filers
Aggregate Value
$650.9M
Across holders
Last Price
$227.47
2026-08-24
Sector
Financials
GICS
Quarterly fund activity9 increased11 reduced5 exited
Full exits: BALYASNY ASSET MANAGEMENT LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., Magnetar Financial LLC, CAPSTONE INVESTMENT ADVISORS, LLC, Ancora Advisors, LLC
Institutional Holders of THG
↗
21 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund1.34M$287.2M44.1%0.1%Added+$281.8MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund322K$68.9M10.6%0.2%Reduced$-20.8MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund311K$66.5M10.2%0.1%Reduced$-39.0MQ2 2026
MARKEL CORP (MKL)
CIK 0001096343
Hedge Fund281K$60.2M9.2%0.5%Unchanged$-57.6MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund181K$38.7M5.9%0.0%Added+$16.7MQ2 2026
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
Institutional Manager177K$37.8M5.8%0.0%Added+$150KQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund141K$30.2M4.6%0.1%Reduced$-2.3MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund70K$15.1M2.3%0.0%Added—Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund69K$14.8M2.3%0.0%Added+$10.2MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund35K$7.4M1.1%0.0%Added—Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$287.2M· 44.1% of total· 0.1% port· 1.34M sh· +$281.8M QoQ· Q2 2026
Woodline Partners LPReduced
Hedge Fund
$68.9M· 10.6% of total· 0.2% port· 322K sh· $-20.8M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$66.5M· 10.2% of total· 0.1% port· 311K sh· $-39.0M QoQ· Q2 2026
MARKEL CORP (MKL)Unchanged
Hedge Fund
$60.2M· 9.2% of total· 0.5% port· 281K sh· $-57.6M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$38.7M· 5.9% of total· 0.0% port· 181K sh· +$16.7M QoQ· Q2 2026
PRIMECAP MANAGEMENT CO/CA/Added
Institutional Manager
$37.8M· 5.8% of total· 0.0% port· 177K sh· +$150K QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$30.2M· 4.6% of total· 0.1% port· 141K sh· $-2.3M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$15.1M· 2.3% of total· 0.0% port· 70K sh· — QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$14.8M· 2.3% of total· 0.0% port· 69K sh· +$10.2M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$7.4M· 1.1% of total· 0.0% port· 35K sh· — QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$6.0M· 0.9% of total· 0.0% port· 28K sh· +$2.6M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$4.9M· 0.7% of total· 0.0% port· 23K sh· +$4.5M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCReduced
Hedge Fund
$4.4M· 0.7% of total· 0.0% port· 20K sh· $-4.5M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$2.2M· 0.3% of total· 0.0% port· 10K sh· $-23.3M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$1.8M· 0.3% of total· 0.0% port· 8K sh· $-6.7M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$1.4M· 0.2% of total· 0.0% port· 7K sh· $-8.0M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$1.1M· 0.2% of total· 0.0% port· 5K sh· +$833K QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$969K· 0.1% of total· 0.0% port· 5K sh· $-570K QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$516K· 0.1% of total· 0.0% port· 2K sh· $-285K QoQ· Q2 2026
Lighthouse Investment Partners, LLCReduced
Hedge Fund
$493K· 0.1% of total· 0.0% port· 2K sh· $-8.5M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$406K· 0.1% of total· 0.0% port· 2K sh· $-548K QoQ· Q2 2026
1–10 of 21
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