DOSSIER · 13F Holders · Q1 2026Financial Services · Fire, Marine & Casualty Insurance
THG

HANOVER INS GROUP INC

526 institutions still hold HANOVER INS GROUP INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 410867105·Fire, Marine & Casualty Insurance·526 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$3.6B
visible holders
Holders
526
filers reporting
Concentration
17.97%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

526 institutions reported THG in Q1 2026. BlackRock, Inc. leads at 18.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$638M3.7M0.01%Q1 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$335M1.9M0.02%Q1 2026
03
STATE STREET CORP
CIK 0000093751
$283M1.6M0.01%Q1 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$252M1.5M0.01%Q1 2026
05
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$240M1.4M0.03%Q1 2026
06
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$175M1.0M0.08%Q1 2026
07
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$174M1.0M0.09%Q1 2026
08
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$172M990K0.58%Q1 2026
09
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$168M970K0.03%Q1 2026
10
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$152M832K0.05%Q1 2026
11
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$143M827K0.10%Q1 2026
12
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$126M728K0.01%Q1 2026
13
AMERIPRISE FINANCIAL INC
CIK 0000820027
$120M695K0.03%Q1 2026
14
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$104M599K0.03%Q1 2026
15
Qube Research & Technologies Ltd
CIK 0001729829
$85M493K0.10%Q1 2026
16
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$82M471K0.01%Q1 2026
17
MORGAN STANLEY
CIK 0000895421
$80M463K0.00%Q1 2026
18
Invesco Ltd.
CIK 0000914208
$79M453K0.01%Q1 2026
19
Woodline Partners LP
CIK 0001784547
$73M419K0.27%Q1 2026
20
Allspring Global Investments Holdings, LLC
CIK 0001890906
$69M402K0.12%Q1 2026
Page 1 of 27
506 more holders available. Log in →
Insiders at HANOVER INS GROUP INC
Carlin Jane DEgan CynthiaLane Kathy SFarber Jeffrey MKerrigan Dennis FrancisLavey Richard WLee Willard TLovely David John