하노버 보험 그룹, Inc.
US ˙ NYSE ˙ US4108671052

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership116,871 shares
Latest Disclosed Value $ 20,260,959
Janus Henderson Group Plc ownership in THG / The Hanover Insurance Group, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 116,871 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $20,259,588 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 116,871 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $22,578,308 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-18 2026-03-31 13F/A-1 HANOVER INS GROUP COM 410867105 116,871 0 0.00 20,261 -5.15 0.0034
2026-05-15 2026-03-31 13F HANOVER INS GROUP COM 410867105 116,871 0 0.00 20,261 -5.15 0.0038
2026-02-17 2025-12-31 13F HANOVER INS GROUP COM 410867105 116,871 -93,052 -44.33 21,362 -43.98 0.0096
2025-11-14 2025-09-30 13F HANOVER INS GROUP COM 410867105 209,923 -19,042 -8.32 38,131 -1.96 0.0174
2025-08-14 2025-06-30 13F HANOVER INS GROUP COM 410867105 228,965 -14,917 -6.12 38,893 -7.62 0.0191
2025-05-15 2025-03-31 13F HANOVER INS GROUP COM 410867105 243,882 -728 -0.30 42,102 11.29 0.0231
2025-02-14 2024-12-31 13F HANOVER INS GROUP COM 410867105 244,610 -9,321 -3.67 37,831 0.58 0.0192
2024-11-14 2024-09-30 13F HANOVER INS GROUP COM 410867105 253,931 -108,243 -29.89 37,611 -17.21 0.0193
2024-08-14 2024-06-30 13F HANOVER INS GROUP COM 410867105 362,174 128 0.04 45,431 -7.84 0.0243
2024-05-15 2024-03-31 13F HANOVER INS GROUP COM 410867105 362,046 18,109 5.27 49,298 18.04 0.0269
2024-02-14 2023-12-31 13F HANOVER INS GROUP COM 410867105 343,937 35,350 11.46 41,762 21.94 0.0249
2023-11-14 2023-09-30 13F HANOVER INS GROUP COM 410867105 308,587 -24,135 -7.25 34,247 -8.93 0.0224
2023-08-14 2023-06-30 13F HANOVER INS GROUP COM 410867105 332,722 -22,059 -6.22 37,608 -17.51 0.0234
2023-05-15 2023-03-31 13F HANOVER INS GROUP COM 410867105 354,781 51,693 17.06 45,591 11.31 0.0301
2023-02-14 2022-12-31 13F HANOVER INS GROUP COM 410867105 303,088 -20,102 -6.22 40,957 -1.11 0.0293
2023-01-13 2022-09-30 13F/A-1 HANOVER INS GROUP COM 410867105 323,190 -26,101 -7.47 41,414 -18.93 0.0310
2022-11-14 2022-09-30 13F HANOVER INS GROUP COM 410867105 323,190 -26,101 41,414 0.0105
2022-08-15 2022-06-30 13F HANOVER INS GROUP COM 410867105 349,291 -2,566 -0.73 51,084 -2.90 0.0352
2022-05-16 2022-03-31 13F HANOVER INS GROUP COM 410867105 351,857 -39 -0.01 52,611 14.08 0.0254
2022-02-14 2021-12-31 13F HANOVER INS GROUP COM 410867105 351,896 -77,079 -17.97 46,119 -17.06 0.0192
2021-11-16 2021-09-30 13F HANOVER INS GROUP COM 410867105 428,975 -130,231 -23.29 55,604 -26.69 0.0243
2021-08-16 2021-06-30 13F HANOVER INS GROUP COM 410867105 559,206 -88,159 -13.62 75,851 -9.49 0.0325
2021-05-17 2021-03-31 13F HANOVER INS GROUP COM 410867105 647,365 -320,738 -33.13 83,808 -25.96 0.0383
2021-02-16 2020-12-31 13F HANOVER INS GROUP COM 410867105 968,103 -37,113 -3.69 113,191 20.85 0.0526
2020-11-16 2020-09-30 13F HANOVER INS GROUP COM 410867105 1,005,216 -2,872 -0.28 93,666 -8.31 0.0488
2020-08-14 2020-06-30 13F HANOVER INS GROUP COM 410867105 1,008,088 61,075 6.45 102,150 19.08 0.0573
2020-05-14 2020-03-31 13F HANOVER INS GROUP COM 410867105 947,013 28,733 3.13 85,780 -31.65 0.0590
2020-02-18 2019-12-31 13F HANOVER INS GROUP COM 410867105 918,280 104,737 12.87 125,501 13.81 0.0643
2019-11-14 2019-09-30 13F HANOVER INS GROUP COM 410867105 813,543 12,703 1.59 110,268 7.32 0.0597
2019-07-31 2019-06-30 13F HANOVER INS GROUP COM 410867105 800,840 24,190 3.11 102,748 15.88 0.0560
2019-04-30 2019-03-31 13F HANOVER INS GROUP COM 410867105 776,650 28,315 3.78 88,670 1.47 0.0491
2019-02-06 2018-12-31 13F HANOVER INS GROUP COM 410867105 748,335 -2,953 -0.39 87,383 -5.72 0.0557
2018-11-09 2018-09-30 13F HANOVER INS GROUP COM 410867105 751,288 -24,246 -3.13 92,686 -0.04 0.0495
2018-08-10 2018-06-30 13F HANOVER INS GROUP COM 410867105 775,534 79,356 11.40 92,723 12.98 0.0529
2018-05-14 2018-03-31 13F HANOVER INS GROUP COM 410867105 696,178 -90,953 -11.56 82,072 -3.53 0.0484
2018-03-12 2017-12-31 13F/A-1 HANOVER INS GROUP COM 410867105 787,131 13,436 1.74 85,073 13.44 0.0524
2018-02-09 2017-12-31 13F HANOVER INS GROUP COM 410867105 787,131 13,436 85,073
2017-11-14 2017-09-30 13F HANOVER INS GROUP COM 410867105 773,695 63,578 8.95 74,994 19.16 0.0481
2017-08-17 2017-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 710,117 710,117 62,938 0.0429
2017-08-14 2017-06-30 13F HANOVER INS GROUP COM 410867105 710,117 62,938 0.0430
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.