The Hanover Insurance Group, Inc.
US ˙ NYSE ˙ US4108671052

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership85,176 shares
Latest Disclosed Value $ 14,765,256
Fmr Llc reports 13.53% decrease in ownership of THG / The Hanover Insurance Group, Inc.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 85,176 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $14,765,260 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 98,498 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of -13.53% during the quarter. The current value of the position is $15,872,548 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)
2026-05-15 2026-03-31 13F HANOVER INS GROUP COM 410867105 85,176 -13,322 -13.53 14,765 -17.98 0.0002
2026-02-17 2025-12-31 13F HANOVER INS GROUP COM 410867105 98,498 -110,634 -52.90 18,002 -52.61 0.0009
2025-11-13 2025-09-30 13F HANOVER INS GROUP COM 410867105 209,132 -37,478 -15.20 37,985 -9.33 0.0020
2025-08-14 2025-06-30 13F HANOVER INS GROUP COM 410867105 246,610 67,988 38.06 41,892 34.82 0.0024
2025-05-12 2025-03-31 13F HANOVER INS GROUP COM 410867105 178,622 6,290 3.65 31,071 16.58 0.0020
2025-02-13 2024-12-31 13F HANOVER INS GROUP COM 410867105 172,332 1,717 1.01 26,653 5.47 0.0016
2024-11-13 2024-09-30 13F HANOVER INS GROUP COM 410867105 170,615 17,583 11.49 25,270 31.64 0.0015
2024-08-13 2024-06-30 13F HANOVER INS GROUP COM 410867105 153,032 7,881 5.43 19,196 -2.88 0.0012
2024-05-13 2024-03-31 13F HANOVER INS GROUP COM 410867105 145,151 36,245 33.28 19,765 49.47 0.0013
2024-02-13 2023-12-31 13F HANOVER INS GROUP COM 410867105 108,906 58,562 116.32 13,223 136.67 0.0010
2023-11-13 2023-09-30 13F HANOVER INS GROUP COM 410867105 50,344 45,535 946.87 5,587 928.91 0.0005
2023-08-11 2023-06-30 13F HANOVER INS GROUP COM 410867105 4,809 1,278 36.19 544 19.87 0.0000
2023-08-11 2023-03-31 13F/A-1 HANOVER INS GROUP COM 410867105 3,531 341 10.69 454 5.10 0.0000
2023-05-11 2023-03-31 13F HANOVER INS GROUP COM 410867105 3,531 341 454 0.0000
2023-02-13 2022-12-31 13F HANOVER INS GROUP COM 410867105 3,190 -153 -4.58 431 0.47 0.0000
2022-11-10 2022-09-30 13F HANOVER INS GROUP COM 410867105 3,343 56 1.70 429 -10.62 0.0000
2022-08-12 2022-06-30 13F HANOVER INS GROUP COM 410867105 3,287 173 5.56 480 3.00 0.0000
2022-05-13 2022-03-31 13F HANOVER INS GROUP COM 410867105 3,114 1,834 143.28 466 177.38 0.0000
2022-02-14 2021-12-31 13F HANOVER INS GROUP COM 410867105 1,280 -414 -24.44 168 -23.64 0.0000
2022-02-14 2021-09-30 13F/A-1 HANOVER INS GROUP COM 410867105 1,694 293 20.91 220 15.79 0.0000
2021-11-15 2021-09-30 13F HANOVER INS GROUP COM 410867105 1,694 293 220 0.0000
2021-08-13 2021-06-30 13F HANOVER INS GROUP COM 410867105 1,401 1 0.07 190 4.97 0.0000
2021-05-14 2021-03-31 13F HANOVER INS GROUP COM 410867105 1,400 73 5.50 181 16.77 0.0000
2021-02-08 2020-12-31 13F HANOVER INS GROUP COM 410867105 1,327 -17 -1.26 155 24.00 0.0000
2020-11-13 2020-09-30 13F HANOVER INS GROUP COM 410867105 1,344 -74,014 -98.22 125 -98.36 0.0000
2020-08-24 2020-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 75,358 21,298 39.40 7,636 55.96 0.0008
2020-08-13 2020-06-30 13F HANOVER INS GROUP COM 410867105 75,358 21,298 7,636 187.5942
2020-05-14 2020-03-31 13F HANOVER INS GROUP COM 410867105 54,060 -22,838 -29.70 4,896 -53.42 0.0007
2020-02-07 2019-12-31 13F HANOVER INS GROUP COM 410867105 76,898 -31,015 -28.74 10,510 -28.14 0.0012
2019-11-13 2019-09-30 13F HANOVER INS GROUP COM 410867105 107,913 -2,938 -2.65 14,626 2.84 0.0018
2019-08-13 2019-06-30 13F HANOVER INS GROUP COM 410867105 110,851 84,088 314.19 14,222 365.53 0.0017
2019-05-13 2019-03-31 13F HANOVER INS GROUP COM 410867105 26,763 -341 -1.26 3,055 -3.48 0.0004
2019-02-13 2018-12-31 13F HANOVER INS GROUP COM 410867105 27,104 -400 -1.45 3,165 -6.72 0.0004
2018-11-09 2018-09-30 13F HANOVER INS GROUP COM 410867105 27,504 204 0.75 3,393 3.95 0.0004
2018-08-10 2018-06-30 13F HANOVER INS GROUP COM 410867105 27,300 -5,900 -17.77 3,264 -16.61 0.0004
2018-05-14 2018-03-31 13F HANOVER INS GROUP COM 410867105 33,200 0 0.00 3,914 9.09 0.0005
2018-02-12 2017-12-31 13F HANOVER INS GROUP COM 410867105 33,200 -10,800 -24.55 3,588 -15.87 0.0004
2017-11-13 2017-09-30 13F HANOVER INS GROUP COM 410867105 44,000 2,100 5.01 4,265 14.84 0.0005
2017-08-29 2017-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 41,900 -2,000 -4.56 3,714 -6.07 0.0005
2017-08-11 2017-06-30 13F HANOVER INS GROUP COM 410867105 41,900 -2,000 3,714
2017-05-11 2017-03-31 13F HANOVER INS GROUP COM 410867105 43,900 -67,700 -60.66 3,954 -61.07 0.0005
2017-02-10 2016-12-31 13F HANOVER INS GROUP COM 410867105 111,600 -244,693 -68.68 10,157 -62.20 0.0014
2016-11-14 2016-09-30 13F HANOVER INS GROUP COM 410867105 356,293 -56,807 -13.75 26,872 -23.13 0.0036
2016-08-11 2016-06-30 13F HANOVER INS GROUP COM 410867105 413,100 -28,942 -6.55 34,957 -12.35 0.0048
2016-05-16 2016-03-31 13F HANOVER INS GROUP COM 410867105 442,042 -77,300 -14.88 39,881 -5.59 0.0055
2016-02-12 2015-12-31 13F HANOVER INS GROUP COM 410867105 519,342 263,242 102.79 42,243 112.29 0.0057
2015-11-10 2015-09-30 13F HANOVER INS GROUP COM 410867105 256,100 210,300 459.17 19,899 486.82 0.0028
2015-08-25 2015-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 45,800 -8,377 -15.46 3,391 -13.76 0.0004
2015-08-13 2015-06-30 13F HANOVER INS GROUP COM 410867105 45,800 3,391
2015-05-14 2015-03-31 13F HANOVER INS GROUP COM 410867105 54,177 -372 -0.68 3,932 1.08 0.0005
2015-02-17 2014-12-31 13F HANOVER INS GROUP COM 410867105 54,549 0 0.00 3,890 16.12 0.0005
2014-11-14 2014-09-30 13F HANOVER INS GROUP COM 410867105 54,549 -1,200 -2.15 3,350 -4.83 0.0005
2014-08-14 2014-06-30 13F HANOVER INS GROUP COM 410867105 55,749 -25,851 -31.68 3,520 -29.80 0.0005
2014-05-15 2014-03-31 13F HANOVER INS GROUP COM 410867105 81,600 -547,400 -87.03 5,014 -86.65 0.0007
2014-02-13 2013-12-31 13F HANOVER INS GROUP COM 410867105 629,000 8,500 1.37 37,558 9.42 0.0053
2013-11-14 2013-09-30 13F HANOVER INS GROUP COM 410867105 620,500 -786,868 -55.91 34,326 -50.15 0.0053
2013-09-24 2013-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 1,407,368 1,407,368 68,863 0.0113
2013-08-14 2013-06-30 13F HANOVER INS GROUP COM 410867105 1,407,368 68,863 0.0113
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.