HANOVER INSURANCE GROUP, INC. (THG) — Institutional Holders, Q2 2026

549 institutional investment managers reported a THG position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $6.8B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← THG stock profile

THG in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

208

Trimmed

168

Sold out

Biggest buyers

PRICE T ROWE ASSOCIATESAdded · +447,437 sh+$95.8M
AQR CAPITAL MANAGEMENTAdded · +327,680 sh+$70.2M
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.Added · +207,804 sh+$44.5M
PRINCIPAL FINANCIAL GROUPAdded · +205,663 sh+$44.0M
GOLDMAN SACHS GROUPAdded · +110,642 sh+$23.7M

Biggest sellers

ADAGE CAPITAL PARTNERS GP, L.L.C.Sold out · -215,370 sh-$46.1M
Qube Research & Technologies LtdTrimmed · -181,966 sh-$39.0M
JACOBS LEVY EQUITY MANAGEMENTSold out · -152,763 sh-$32.7M
BlackRockTrimmed · -148,234 sh-$31.7M
BALYASNY ASSET MANAGEMENT L.P.Sold out · -143,474 sh-$30.7M

THG 13F holders ranked 1–100 of 549

Institutional investors reporting a position in HANOVER INSURANCE GROUP, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 3,532,932 sh	3,532,932	$756.5M	0.01%	-4.0%
2	VANGUARD PORTFOLIO MANAGEMENT#2 · 1,919,628 sh	1,919,628	$411.0M	0.02%	-0.7%
3	PRICE T ROWE ASSOCIATES#3 · 1,831,579 sh	1,831,579	$392.2M	0.04%	+32.3%
4	STATE STREET#4 · 1,627,020 sh	1,627,020	$348.4M	0.01%	-0.3%
5	VANGUARD CAPITAL MANAGEMENT#5 · 1,458,761 sh	1,458,761	$312.3M	<0.01%	+0.4%
6	AQR CAPITAL MANAGEMENT#6 · 1,341,075 sh	1,341,075	$287.2M	0.10%	+32.3%
7	FULLER & THALER ASSET MANAGEMENT#7 · 1,089,705 sh	1,089,705	$233.3M	0.64%	+10.1%
8	AMERICAN CENTURY COMPANIES#8 · 1,078,105 sh	1,078,105	$230.8M	0.10%	+7.5%
9	DIMENSIONAL FUND ADVISORS#9 · 1,030,544 sh	1,030,544	$220.7M	0.04%	+6.2%
10	FIRST ADVISORS#10 · 824,257 sh	824,257	$176.5M	0.10%	-0.4%
11	ALLIANCEBERNSTEIN L.P.#11 · 909,130 sh	909,130	$157.6M	0.05%	+9.3%
12	GEODE CAPITAL MANAGEMENT#12 · 729,091 sh	729,091	$156.1M	<0.01%	+0.1%
13	AMERIPRISE FINANCIAL#13 · 699,163 sh	699,163	$149.7M	0.03%	+0.6%
14	MASSACHUSETTS FINANCIAL SERVICES#14 · 595,647 sh	595,647	$127.5M	0.04%	-0.5%
15	CHARLES SCHWAB INVESTMENT MANAGEMENT#15 · 453,309 sh	453,309	$97.1M	0.01%	-3.7%
16	Invesco Ltd.#16 · 452,418 sh	452,418	$96.9M	<0.01%	-0.1%
17	MORGAN STANLEY#17 · 450,920 sh	450,920	$96.6M	<0.01%	-2.5%
18	NORGES BANK#18 · 447,262 sh	447,262	$95.8M	<0.01%	—
19	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.#19 · 372,514 sh	372,514	$79.8M	0.71%	+126.2%
20	LONDON OF VIRGINIA#20 · 360,801 sh	360,801	$77.3M	0.44%	-5.5%
21	NORTHERN#21 · 342,036 sh	342,036	$73.2M	<0.01%	0.0%
22	Allspring Global Investments#22 · 333,520 sh	333,520	$72.3M	0.11%	-16.9%
23	GOLDMAN SACHS GROUP#23 · 329,424 sh	329,424	$70.5M	<0.01%	+50.6%
24	Bank of New York Mellon#24 · 324,496 sh	324,496	$69.5M	0.01%	-4.2%
25	Woodline Partners#25 · 321,972 sh	321,972	$68.9M	0.21%	-23.2%
26	Qube Research & Technologies Ltd#26 · 310,785 sh	310,785	$66.5M	0.06%	-36.9%
27	Quantinno Capital Management#27 · 288,499 sh	288,499	$61.8M	0.07%	+39.3%
28	PRINCIPAL FINANCIAL GROUP#28 · 284,718 sh	284,718	$61.0M	0.03%	+260.2%
29	MARKEL GROUP#29 · 281,000 sh	281,000	$60.2M	0.46%	0.0%
30	NOMURA ASSET MANAGEMENT INTERNATIONAL#30 · 272,738 sh	272,738	$58.4M	0.09%	-1.6%
31	BANK OF AMERICA#31 · 222,931 sh	222,931	$47.7M	<0.01%	-11.2%
32	VANGUARD FIDUCIARY#32 · 218,547 sh	218,547	$46.8M	0.01%	+0.9%
33	TWO SIGMA INVESTMENTS#33 · 180,817 sh	180,817	$38.7M	0.03%	+75.8%
34	PRIMECAP MANAGEMENT#34 · 176,740 sh	176,740	$37.8M	0.02%	+0.4%
35	BROWN ADVISORY#35 · 170,252 sh	170,252	$36.5M	0.06%	-1.3%
36	WILLIAM BLAIR INVESTMENT MANAGEMENT#36 · 154,277 sh	154,277	$33.0M	0.10%	-21.2%
37	Arbejdsmarkedets Tillaegspension#37 · 147,109 sh	147,109	$31.5M	0.69%	0.0%
38	ProShare Advisors#38 · 146,672 sh	146,672	$31.4M	0.05%	-2.1%
39	Gotham Asset Management#39 · 140,954 sh	140,954	$30.2M	0.07%	-7.1%
40	Boston Walden#40 · 138,180 sh	138,180	$29.6M	0.23%	-2.0%
41	PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#41 · 128,613 sh	128,613	$27.5M	0.10%	0.0%
42	Interval Partners#42 · 124,856 sh	124,856	$26.7M	0.69%	+14.5%
43	ALTRINSIC GLOBAL ADVISORS#43 · 119,083 sh	119,083	$25.5M	0.94%	-8.6%
44	JPMORGAN CHASE#44 · 116,100 sh	116,100	$25.2M	<0.01%	+70.8%
45	ENVESTNET ASSET MANAGEMENT#45 · 116,460 sh	116,460	$24.9M	<0.01%	+7.3%
46	UBS Group AG#46 · 110,164 sh	110,164	$23.6M	<0.01%	-53.7%
47	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#47 · 107,049 sh	107,049	$22.9M	<0.01%	-1.8%
48	Jupiter Topco#48 · 100,557 sh	100,557	$21.5M	<0.01%	—
49	RHUMBLINE ADVISERS#49 · 99,291 sh	99,291	$21.3M	0.02%	-5.6%
50	Aptus Capital Advisors#50 · 91,287 sh	91,287	$19.5M	0.13%	+0.6%
51	Leeward Investments, - MA#51 · 90,134 sh	90,134	$19.3M	—	-2.1%
52	T. Rowe Price Investment Management#52 · 87,045 sh	87,045	$18.6M	0.01%	+34.8%
53	SEI INVESTMENTS#53 · 85,510 sh	85,510	$18.3M	0.02%	-8.8%
54	FRANKLIN RESOURCES#54 · 84,523 sh	84,523	$18.1M	<0.01%	-53.7%
55	MARTINGALE ASSET MANAGEMENT L P#55 · 83,765 sh	83,765	$17.9M	0.42%	+6.5%
56	NATIXIS ADVISORS#56 · 83,203 sh	83,203	$17.8M	0.02%	+86.9%
57	RAYMOND JAMES FINANCIAL#57 · 75,720 sh	75,720	$16.2M	<0.01%	+91.1%
58	VOYA INVESTMENT MANAGEMENT#58 · 75,656 sh	75,656	$16.2M	0.01%	-1.2%
59	Gillson Capital#59 · 73,178 sh	73,178	$15.7M	0.92%	+56.4%
60	FMR#60 · 72,923 sh	72,923	$15.6M	<0.01%	-14.4%
61	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#61 · 71,874 sh	71,874	$15.4M	<0.01%	-25.1%
62	Swiss National Bank#62 · 70,600 sh	70,600	$15.1M	<0.01%	+0.3%
63	RENAISSANCE TECHNOLOGIES#63 · 70,300 sh	70,300	$15.1M	0.02%	New
64	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#64 · 68,915 sh	68,915	$14.8M	<0.01%	+226.0%
65	SILVERCREST ASSET MANAGEMENT GROUP#65 · 56,516 sh	56,516	$12.1M	0.08%	-0.4%
66	HANCOCK WHITNEY#66 · 55,863 sh	55,863	$12.0M	0.20%	-1.7%
67	CONGRESS ASSET MANAGEMENT#67 · 55,427 sh	55,427	$11.9M	—	+1.0%
68	WELLS FARGO & COMPANY#68 · 54,715 sh	54,715	$11.7M	<0.01%	+198.1%
69	HOTCHKIS & WILEY CAPITAL MANAGEMENT#69 · 54,405 sh	54,405	$11.6M	0.03%	-2.2%
70	BARCLAYS PLC#70 · 53,191 sh	53,191	$11.4M	<0.01%	-54.9%
71	Hodges Capital Management#71 · 52,369 sh	52,369	$11.2M	0.74%	+6.5%
72	IEQ CAPITAL#72 · 51,099 sh	51,099	$10.9M	0.05%	+15.7%
73	Russell Investments Group, Ltd.#73 · 50,937 sh	50,937	$10.9M	<0.01%	-33.3%
74	NORDEA INVESTMENT MANAGEMENT AB#74 · 50,034 sh	50,034	$10.7M	<0.01%	-8.5%
75	Creative Planning#75 · 49,954 sh	49,954	$10.7M	<0.01%	+35.2%
76	Trexquant Investment#76 · 49,489 sh	49,489	$10.6M	0.06%	-27.0%
77	BNP Paribas Asset Management Holding S.A.#77 · 49,159 sh	49,159	$10.5M	0.01%	+27.4%
78	Legal & General Group Plc#78 · 48,866 sh	48,866	$10.5M	<0.01%	-2.2%
79	PANAGORA ASSET MANAGEMENT#79 · 46,865 sh	46,865	$10.0M	0.03%	+2205.2%
80	LSV ASSET MANAGEMENT#80 · 46,000 sh	46,000	$9.8M	0.02%	+31.8%
81	Nuveen#81 · 44,875 sh	44,875	$9.6M	<0.01%	-52.4%
82	STRS OHIO#82 · 44,593 sh	44,593	$9.5M	0.04%	+44.1%
83	SUSQUEHANNA FUNDAMENTAL INVESTMENTS#83 · 43,208 sh	43,208	$9.3M	0.17%	+41.2%
84	CRAWFORD INVESTMENT COUNSEL#84 · 42,274 sh	42,274	$9.1M	0.15%	-27.3%
85	Vest Financial#85 · 40,160 sh	40,160	$8.6M	—	+3.9%
86	Universal- Beteiligungs- und Servicegesellschaft mbH#86 · 39,914 sh	39,914	$8.5M	0.01%	+11.1%
87	ACADIAN ASSET MANAGEMENT#87 · 39,916 sh	39,916	$8.5M	0.01%	-14.3%
88	Cerity Partners#88 · 39,892 sh	39,892	$8.5M	0.01%	+38.1%
89	TEACHER RETIREMENT SYSTEM OF TEXAS#89 · 38,992 sh	38,992	$8.3M	0.02%	-15.9%
90	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#90 · 37,813 sh	37,813	$8.1M	—	-3.0%
91	HEARTLAND ADVISORS#91 · 37,549 sh	37,549	$8.0M	0.36%	0.0%
92	CX Institutional#92 · 36,544 sh	36,544	$7.8M	—	+8.3%
93	Retirement Systems of Alabama#93 · 36,187 sh	36,187	$7.7M	0.02%	-16.6%
94	SCHRODER INVESTMENT MANAGEMENT GROUP#94 · 35,357 sh	35,357	$7.6M	<0.01%	+127.7%
95	Point72 Asset Management, L.P.#95 · 34,543 sh	34,543	$7.4M	<0.01%	New
96	Assenagon Asset Management S.A.#96 · 34,438 sh	34,438	$7.4M	—	New
97	VANGUARD ASSET MANAGEMENT, Ltd#97 · 33,032 sh	33,032	$7.1M	<0.01%	+0.5%
98	TRILLIUM ASSET MANAGEMENT#98 · 32,198 sh	32,198	$6.9M	0.21%	+11.7%
99	ALGERT GLOBAL#99 · 31,870 sh	31,870	$6.8M	0.08%	-32.8%
100	SG Americas Securities#100 · 31,609 sh	31,609	$6.8M	<0.01%	+439.6%

Funds that sold out of THG in Q2 2026 (39)

Held THG at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held THG in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.215,370 sh	215,370	$37.3M
JACOBS LEVY EQUITY MANAGEMENT152,763 sh	152,763	$26.5M
BALYASNY ASSET MANAGEMENT L.P.143,474 sh	143,474	$24.9M
HENNESSY ADVISORS43,400 sh	43,400	$7.5M
Kingsview Wealth Management19,441 sh	19,441	$3.4M
New Age Alpha Advisors17,493 sh	17,493	$3.0M
ExodusPoint Capital Management14,837 sh	14,837	$2.6M
AMG National Bank10,835 sh	10,835	$1.9M
Quantbot Technologies10,334 sh	10,334	$1.8M
LECAP ASSET MANAGEMENT LTD4,571 sh	4,571	$792.4K
Aquatic Capital Management3,744 sh	3,744	$649.0K
INCEPTIONR3,640 sh	3,640	$631.0K
iSAM Funds (UK) Ltd3,537 sh	3,537	$613.1K
HRT FINANCIAL3,468 sh	3,468	$601.0K
CAPSTONE INVESTMENT ADVISORS3,245 sh	3,245	$562.5K
Burns Matteson Capital Management3,083 sh	3,083	$534.4K
Voleon Capital Management2,608 sh	2,608	$452.1K
Entropy Technologies2,601 sh	2,601	$450.9K
MIRABELLA FINANCIAL SERVICES LLP2,470 sh	2,470	$428.2K
Magnetar Financial1,901 sh	1,901	$329.5K
WBI INVESTMENTS1,853 sh	1,853	$321.2K
111 Capital1,705 sh	1,705	$295.6K
Beacon Pointe Advisors1,538 sh	1,538	$266.6K
EVOKE WEALTH1,445 sh	1,445	$250.5K
Gallacher Capital Management1,283 sh	1,283	$222.4K
Root Financial Partners237 sh	237	$41.1K
Sound Income Strategies204 sh	204	$35.2K
Innovative Asset Advisors Group156 sh	156	$27.0K
Matrix122 sh	122	$21.0K
Ancora Advisors54 sh	54	$9.4K
Grove Bank41 sh	41	$7.1K
TWIN PEAKS WEALTH ADVISORS35 sh	35	$6.1K
DAGCO34 sh	34	$5.9K
Intentional Wealth Strategies24 sh	24	$4.2K
Annis Gardner Whiting Capital Advisors10 sh	10	$1.7K
Whipplewood Advisors8 sh	8	$1.4K
Vermillion Wealth Management3 sh	3	$520.00
Frazier Financial Advisors2 sh	2	$347.00
CURIO WEALTH1 sh	1	$173.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.