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Hanover Insurance Group, Inc.

THG
Exchange
NYSE
Industry
Fire, Marine & Casualty Insurance
SEC CIK
0000944695

In the last 90 days, Hanover Insurance Group, Inc. insiders filed 0 open-market purchases and 3 sales; 547 institutions reported holding it in 13F filings for Q2 2026, worth $6.84B in total; Markel Group is the only superinvestor holding it.

13F holders, Q3 2026

Institutional positions in Hanover Insurance Group, Inc. as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders
4
+1 vs. Q2 2026
Shares held
3.06K
−34.3K (−91.8%) vs. Q2 2026
Total value
$656.3K
−$7.35M (−91.8%) vs. Q2 2026
New holders
1
1 more added
Sold out
0
1 more reduced

544 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting THG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders
Q1 2021: 351 institutionsQ2 2021: 328 institutionsQ3 2021: 325 institutionsQ4 2021: 352 institutionsQ1 2022: 358 institutionsQ2 2022: 356 institutionsQ3 2022: 332 institutionsQ4 2022: 356 institutionsQ1 2023: 350 institutionsQ2 2023: 337 institutionsQ3 2023: 335 institutionsQ4 2023: 343 institutionsQ1 2024: 347 institutionsQ2 2024: 369 institutionsQ3 2024: 377 institutionsQ4 2024: 405 institutionsQ1 2025: 437 institutionsQ2 2025: 433 institutionsQ3 2025: 460 institutionsQ4 2025: 496 institutionsQ1 2026: 507 institutionsQ2 2026: 547 institutions
Value held
Q1 2021: $4.03BQ2 2021: $4.16BQ3 2021: $3.91BQ4 2021: $3.95BQ1 2022: $4.53BQ2 2022: $4.48BQ3 2022: $3.99BQ4 2022: $4.19BQ1 2023: $3.97BQ2 2023: $3.47BQ3 2023: $3.48BQ4 2023: $3.77BQ1 2024: $4.27BQ2 2024: $3.95BQ3 2024: $4.65BQ4 2024: $4.90BQ1 2025: $5.60BQ2 2025: $5.48BQ3 2025: $5.70BQ4 2025: $5.81BQ1 2026: $5.44BQ2 2026: $6.84B
Institutions holding THG and their total value by quarter
QuarterHoldersValue
Q2 2026547$6.84B
Q1 2026507$5.44B
Q4 2025496$5.81B
Q3 2025460$5.70B
Q2 2025433$5.48B
Q1 2025437$5.60B
Q4 2024405$4.90B
Q3 2024377$4.65B
Q2 2024369$3.95B
Q1 2024347$4.27B
Q4 2023343$3.77B
Q3 2023335$3.48B
Q2 2023337$3.47B
Q1 2023350$3.97B
Q4 2022356$4.19B
Q3 2022332$3.99B
Q2 2022356$4.48B
Q1 2022358$4.53B
Q4 2021352$3.95B
Q3 2021325$3.91B
Q2 2021328$4.16B
Q1 2021351$4.03B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Hanover Insurance Group, Inc.; share changes are against Q2 2026.

Institutions holding THG in Q3 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Assenagon Asset Management S.A.––––Not filed
Vanguard Asset Management, Ltd––––Not filed
Trillium Asset Management, LLC––––Not filed
Algert Global LLC––––Not filed
SG Americas Securities, LLC––––Not filed
Philadelphia Financial Management of San Francisco, LLC––––Not filed
Mariner, LLC––––Not filed
Meiji Yasuda Asset Management Co Ltd.––––Not filed
Colony Group, LLC––––Not filed
Horizon Investments, LLC––––Not filed
Bridgewater Associates, LP––––Not filed
Worldquant Millennium Advisors LLC––––Not filed
Pathstone Holdings, LLC––––Not filed
Illinois Municipal Retirement Fund––––Not filed
Manufacturers Life Insurance Company, The––––Not filed
Winton Group Ltd––––Not filed
Sterling Capital Management LLC––––Not filed
Peregrine Capital Management LLC––––Not filed
State Board of Administration of Florida Retirement System––––Not filed
D. E. Shaw & Co., Inc.––––Not filed
Goelzer Investment Management, Inc.––––Not filed
Wedge Capital Management L L P––––Not filed
Citigroup Inc––––Not filed
Great West Life Assurance Co––––Not filed
BI Asset Management Fondsmaeglerselskab A/S––––Not filed
Mercer Global Advisors Inc––––Not filed
Schonfeld Strategic Advisors LLC––––Not filed
LPL Financial LLC––––Not filed
Fifth Third Bancorp––––Not filed
Stifel Financial Corp––––Not filed
Northwest & Ethical Investments L.P.––––Not filed
Wealth Enhancement Advisory Services, LLC––––Not filed
Vanguard Global Advisers, LLC––––Not filed
Prudential Financial Inc––––Not filed
Natixis––––Not filed
New York State Common Retirement Fund––––Not filed
Bessemer Group Inc––––Not filed
Madison Asset Management, LLC––––Not filed
Los Angeles Capital Management LLC––––Not filed
MetLife Investment Management––––Not filed
Robeco Institutional Asset Management B.V.––––Not filed
Deutsche Bank AG––––Not filed
Lazard Asset Management LLC––––Not filed
Hillsdale Investment Management Inc.––––Not filed
Police & Firemen's Retirement System of New Jersey––––Not filed
Agf Management Ltd––––Not filed
Amalgamated Bank––––Not filed
Treasurer of the State of North Carolina––––Not filed
Pullen Investment Management, LLC––––Not filed
MML Investors Services, LLC––––Not filed
Lowe Brockenbrough & Co Inc––––Not filed
Leuthold Group, LLC––––Not filed
State of Alaska, Department of Revenue––––Not filed
State of Tennessee, Treasury Department––––Not filed
Victory Capital Management Inc––––Not filed
Advisor Group Holdings, Inc.––––Not filed
Mutual of America Capital Management LLC––––Not filed
Palisade Capital Management LLC––––Not filed
Captrust Financial Advisors––––Not filed
Stonebridge Financial Group, LLC––––Not filed
KLP Kapitalforvaltning AS––––Not filed
Nisa Investment Advisors, LLC––––Not filed
State of New Jersey Common Pension Fund D––––Not filed
Elo Mutual Pension Insurance Co––––Not filed
Federation des caisses Desjardins du Quebec––––Not filed
XTX Topco Ltd––––Not filed
Boston Partners––––Not filed
Royal Bank of Canada––––Not filed
Teachers Retirement System of the State of Kentucky––––Not filed
Vident Advisory, LLC––––Not filed
Ensign Peak Advisors, Inc––––Not filed
Public Employees Retirement System of Ohio––––Not filed
Zurcher Kantonalbank (Zurich Cantonalbank)––––Not filed
Graham Capital Management, L.P.––––Not filed
CI Private Wealth, LLC––––Not filed
Thrivent Financial for Lutherans––––Not filed
Handelsbanken Fonder AB––––Not filed
Commonwealth Equity Services, LLC––––Not filed
Sanctuary Advisors, LLC––––Not filed
Louisiana State Employees Retirement System––––Not filed
Millennium Management LLC––––Not filed
O'Shaughnessy Asset Management, LLC––––Not filed
Intech Investment Management LLC––––Not filed
Arizona State Retirement System––––Not filed
Yousif Capital Management, LLC––––Not filed
Engineers Gate Manager LP––––Not filed
Ironwood Investment Management LLC––––Not filed
Vanguard Investments Australia, Ltd.––––Not filed
Linden Thomas Advisory Services, LLC––––Not filed
Bank of Montreal––––Not filed
Pinnacle Associates Ltd––––Not filed
Summit Trail Advisors, LLC––––Not filed
Guggenheim Capital LLC––––Not filed
Sit Investment Associates Inc––––Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys––––Not filed
State of Michigan Retirement System––––Not filed
Empowered Funds, LLC––––Not filed
Man Group plc––––Not filed
Picton Mahoney Asset Management––––Not filed
Hunter Perkins Capital Management, LLC––––Not filed