Hanover Insurance Group Inc./THG
13F holders, Q1 2026 (March 31)507holders +11
56new positions
44sold out
7famous investors
$173.61avg. 13F price*
At the end of Q1 2026, 507 institutions reported holding Hanover Insurance Group Inc./ (THG) in their 13F filings, up 11 from Q4 2025. 56 opened new positions and 44 sold out. The largest holders were BlackRock, Inc. ($638.1M), Vanguard Portfolio Management LLC ($335.0M) and State Street Corp. ($282.8M). 7 famous investors held it, including Tom Gayner (0.4% of Markel Group's portfolio), Joel Greenblatt (0.1% of Gotham Asset Management's portfolio) and Cliff Asness (0.1% of AQR Capital Management's portfolio).
- Company
- Hanover Insurance Group Inc./
- CUSIP
- 410867105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 56 | $29.6M |
| Exits | 44 | $47.8M |
All 13F filers, Q4 2025 → Q1 2026: 3,090,541 shares bought and 3,015,274 shares sold, net +75,267 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 507 holders
| BlackRock, Inc. | 0.01% | Add +2.8% | 3,681,166 | $638.1M |
| Vanguard Portfolio Management LLC | 0.02% | — | 1,932,460 | $335.0M |
| State Street Corp. | 0.01% | Add +36.0% | 1,631,422 | $282.8M |
| Vanguard Capital Management LLC | 0.01% | — | 1,452,355 | $251.8M |
| T. Rowe Price Associates Inc. | 0.03% | Reduce -5.0% | 1,384,142 | $239.9M |
| AQR Capital Management | 0.08% | Add +6.3% | 1,013,395 | $175.4M |
| American Century Companies Inc. | 0.09% | Add +41.3% | 1,002,527 | $173.8M |
| Fuller & Thaler Asset Management, Inc. | 0.58% | Add +3.7% | 989,837 | $171.6M |
| Dimensional Fund Advisors LP | 0.03% | Add +16.4% | 970,177 | $168.2M |
| Alliancebernstein L.P. | 0.05% | Reduce -22.8% | 831,545 | $152.0M |
| First Trust Advisors LP | 0.10% | Add +3.2% | 827,320 | $143.4M |
| Geode Capital Management, LLC | 0.01% | Add +0.0% | 728,167 | $126.3M |
| Ameriprise Financial Inc. | 0.03% | Add +9.2% | 694,771 | $120.4M |
| Massachusetts Financial Services Co. | 0.03% | Reduce -50.8% | 598,786 | $103.8M |
| Qube Research & Technologies Ltd | 0.12% | Add +16.1% | 492,751 | $85.4M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +2.7% | 470,830 | $81.6M |
| Morgan Stanley | 0.00% | Add +14.9% | 462,672 | $80.2M |
| Invesco Ltd. | 0.01% | Reduce -30.0% | 452,884 | $78.5M |
| Woodline Partners LP | 0.27% | Add +70.6% | 418,980 | $72.6M |
| Allspring Global Investments Holdings, LLC | 0.12% | Reduce -7.0% | 401,539 | $69.2M |
| London Co. of Virginia | 0.41% | Reduce -2.5% | 381,668 | $66.2M |
| Northern Trust Corp. | 0.01% | Add +2.2% | 342,173 | $59.3M |
| Bank of New York Mellon Corp | 0.01% | Add +1.6% | 338,870 | $58.7M |
| Markel Group | 0.41% | No change | 281,000 | $48.7M |
| Nomura Asset Management International Inc. | 0.08% | Reduce -23.3% | 277,050 | $48.0M |
| Bank of America Corp. | 0.00% | Add +10.1% | 251,130 | $43.5M |
| UBS Group AG | 0.01% | Add +59.3% | 237,770 | $41.2M |
| Goldman Sachs Group Inc. | 0.01% | Add +20.3% | 218,782 | $37.9M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 216,524 | $37.5M |
| Adage Capital Partners Gp, L.L.C. | 0.06% | Add +216.7% | 215,370 | $37.3M |
| Quantinno Capital Management LP | 0.06% | Add +102.0% | 207,152 | $35.9M |
| William Blair Investment Management, LLC | 0.11% | Add +31.2% | 195,760 | $33.9M |
| Franklin Resources Inc. | 0.01% | Reduce -27.5% | 182,488 | $31.6M |
| Primecap Management Co. | 0.02% | Add +377.1% | 176,040 | $30.5M |
| Brown Advisory Inc. | 0.05% | Reduce -6.2% | 172,514 | $29.9M |
| Vaughan Nelson Investment Management, L.P. | 0.29% | Reduce -62.4% | 164,710 | $28.6M |
| Jacobs Levy Equity Management, Inc. | 0.11% | Reduce -32.1% | 152,763 | $26.5M |
| Gotham Asset Management | 0.08% | Add +13.7% | 151,751 | $26.3M |
| ProShare Advisors LLC | 0.04% | Reduce -20.3% | 149,856 | $26.0M |
| Arbejdsmarkedets Tillaegspension | 0.63% | Add +13.2% | 147,109 | $25.5M |
| Balyasny Asset Management L.P. | 0.05% | Reduce -38.5% | 143,474 | $24.9M |
| Boston Trust Walden Corp | 0.20% | Reduce -17.3% | 140,938 | $24.4M |
| Altrinsic Global Advisors LLC | 0.81% | Reduce -5.1% | 130,221 | $22.6M |
| Public Employees Retirement Association of Colorado | 0.09% | No change | 128,613 | $22.3M |
| Millennium Management | 0.02% | Reduce -29.7% | 118,796 | $20.6M |
| Barclays PLC | 0.01% | Add +40.5% | 117,980 | $20.5M |
| Citadel Advisors | 0.01% | Add +155.6% | 117,634 | $20.4M |
| Janus Henderson Group PLC | 0.01% | No change | 116,871 | $20.3M |
| Interval Partners, LP | 0.65% | Reduce -21.2% | 109,022 | $18.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +3.9% | 108,971 | $18.9M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -0.5% | 108,514 | $18.8M |
| Rhumbline Advisers | 0.02% | Add +0.8% | 105,208 | $18.2M |
| Two Sigma Investments, LP | 0.02% | Add +588.0% | 102,851 | $17.8M |
| California Public Employees Retirement System | 0.01% | Reduce -9.5% | 95,924 | $16.6M |
| Nuveen, LLC | 0.00% | Add +86.5% | 94,208 | $16.3M |
| Sei Investments Co. | 0.01% | Add +28.8% | 93,736 | $16.2M |
| Leeward Investments, LLC - MA | 0.79% | Reduce -2.7% | 92,114 | $16.0M |
| Aptus Capital Advisors, LLC | 0.13% | Add +1.0% | 90,706 | $15.7M |
| FMR LLC | 0.00% | Reduce -13.5% | 85,176 | $14.8M |
| Principal Financial Group Inc. | 0.01% | Add +3.3% | 79,055 | $13.7M |
| Martingale Asset Management L P | 0.34% | Reduce -0.2% | 78,618 | $13.6M |
| Voya Investment Management LLC | 0.02% | Add +20.0% | 76,550 | $13.3M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -19.9% | 76,383 | $13.2M |
| Swiss National Bank | 0.01% | Reduce -0.3% | 70,400 | $12.2M |
| Trexquant Investment LP | 0.09% | Add +30.9% | 67,767 | $11.7M |
| Jane Street Group, LLC | 0.01% | Add +4265.9% | 67,758 | $11.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.5% | 67,960 | $11.7M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Reduce -0.8% | 64,575 | $11.2M |
| Hancock Whitney Corp. | 0.19% | Reduce -3.0% | 56,815 | $10.7M |
| Crawford Investment Counsel Inc. | 0.17% | Reduce -0.7% | 58,154 | $10.1M |
| Silvercrest Asset Management Group LLC | 0.07% | Reduce -28.3% | 56,750 | $9.8M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Add +0.7% | 55,625 | $9.6M |
| Congress Asset Management Co. | 0.07% | Add +28.7% | 54,867 | $9.5M |
| Engineers Gate Manager LP | 0.12% | Add +241.3% | 54,641 | $9.5M |
| Nordea Investment Management AB | 0.01% | Reduce -4.8% | 54,682 | $9.4M |
| Legal & General Group Plc | 0.00% | Reduce -11.1% | 49,967 | $8.7M |
| Hodges Capital Management Inc. | 0.71% | Add +14.4% | 49,188 | $8.5M |
| Algert Global LLC | 0.12% | Add +126.8% | 47,430 | $8.2M |
| Gillson Capital LP | 0.66% | Reduce -34.0% | 46,778 | $8.1M |
| Acadian Asset Management LLC | 0.01% | Reduce -26.0% | 46,594 | $8.1M |
| Teacher Retirement System of Texas | 0.03% | Reduce -5.4% | 46,342 | $8.0M |
| Natixis Advisors, LLC | 0.01% | Reduce -51.9% | 44,525 | $7.7M |
| Squarepoint Ops LLC | 0.02% | Add +174.0% | 44,184 | $7.7M |
| Ieq Capital, LLC | 0.04% | Reduce -17.6% | 44,160 | $7.7M |
| Hennessy Advisors Inc. | 0.27% | Reduce -3.3% | 43,400 | $7.5M |
| California State Teachers Retirement System | 0.01% | Add +30.7% | 43,399 | $7.5M |
| Retirement Systems of Alabama | 0.03% | Add +1.6% | 43,398 | $7.5M |
| Lighthouse Investment Partners, LLC | 0.27% | Reduce -70.2% | 41,857 | $7.3M |
| Schonfeld Strategic Advisors LLC | 0.06% | Reduce -29.1% | 41,332 | $7.2M |
| Citigroup Inc. | 0.00% | Add +113.3% | 40,502 | $7.0M |
| Raymond James Financial Inc. | 0.00% | Reduce -0.7% | 39,625 | $6.9M |
| Man Group plc | 0.01% | Add +169.0% | 39,568 | $6.9M |
| New York State Teachers Retirement System | 0.01% | Reduce -25.5% | 38,992 | $6.8M |
| Amundi | 0.00% | Reduce -0.2% | 38,707 | $6.7M |
| Vest Financial, LLC | 0.08% | Add +15.2% | 38,653 | $6.7M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.01% | Add +54.9% | 38,581 | $6.7M |
| Heartland Advisors Inc. | 0.33% | Reduce -12.4% | 37,549 | $6.5M |
| Creative Planning | 0.00% | Add +19.5% | 36,953 | $6.4M |
| Northwest & Ethical Investments L.P. | 0.15% | Reduce -14.1% | 36,370 | $6.3M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +58.0% | 35,930 | $6.2M |
"% of holder's portfolio" is THG's weight in each manager's 13F, not the share of Hanover Insurance Group Inc./ the manager owns.