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

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership40,502 shares
Latest Disclosed Value $ 7,021,022
Citigroup Inc reports 113.25% increase in ownership of THG / The Hanover Insurance Group, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 40,502 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $7,021,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 18,993 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of 113.25% during the quarter. The current value of the position is $7,547,548 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)
2026-05-11 2026-03-31 13F HANOVER INS GROUP COM 410867105 40,502 21,509 113.25 7,021 102.28 0.0015
2026-02-13 2025-12-31 13F HANOVER INS GROUP COM 410867105 18,993 4,937 35.12 3,471 36.01 0.0015
2025-11-10 2025-09-30 13F HANOVER INS GROUP COM 410867105 14,056 3,859 37.84 2,553 47.34 0.0011
2025-08-11 2025-06-30 13F HANOVER INS GROUP COM 410867105 10,197 -2,283 -18.29 1,732 -20.18 0.0009
2025-05-12 2025-03-31 13F HANOVER INS GROUP COM 410867105 12,480 -217 -1.71 2,171 10.55 0.0011
2025-02-12 2024-12-31 13F HANOVER INS GROUP COM 410867105 12,697 3,611 39.74 1,964 45.95 0.0012
2024-11-12 2024-09-30 13F HANOVER INS GROUP COM 410867105 9,086 4,642 104.46 1,346 141.47 0.0008
2024-08-12 2024-06-30 13F HANOVER INS GROUP COM 410867105 4,444 616 16.09 557 6.91 0.0004
2024-05-10 2024-03-31 13F HANOVER INS GROUP COM 410867105 3,828 -899 -19.02 521 -9.08 0.0003
2024-02-09 2023-12-31 13F HANOVER INS GROUP COM 410867105 4,727 658 16.17 574 27.05 0.0004
2023-12-06 2023-09-30 13F/A-1 HANOVER INS GROUP COM 410867105 4,069 -2,349 -36.60 452 -37.79 0.0003
2023-11-09 2023-09-30 13F HANOVER INS GROUP COM 410867105 4,069 -2,349 452 0.0001
2023-08-10 2023-06-30 13F HANOVER INS GROUP COM 410867105 6,418 -21 -0.33 725 -12.33 0.0005
2023-05-11 2023-03-31 13F HANOVER INS GROUP COM 410867105 6,439 -3,679 -36.36 827 -39.50 0.0006
2023-02-09 2022-12-31 13F HANOVER INS GROUP COM 410867105 10,118 -4,708 -31.76 1,367 -28.09 0.0011
2022-11-10 2022-09-30 13F HANOVER INS GROUP COM 410867105 14,826 -583 -3.78 1,901 -15.62 0.0014
2022-08-10 2022-06-30 13F HANOVER INS GROUP COM 410867105 15,409 -1,734 -10.11 2,253 -12.13 0.0017
2022-05-12 2022-03-31 13F HANOVER INS GROUP COM 410867105 17,143 -7,580 -30.66 2,564 -20.86 0.0016
2022-02-10 2021-12-31 13F HANOVER INS GROUP COM 410867105 24,723 -337 -1.34 3,240 -0.28 0.0017
2021-11-10 2021-09-30 13F HANOVER INS GROUP COM 410867105 25,060 -3,587 -12.52 3,249 -16.37 0.0019
2021-08-10 2021-06-30 13F HANOVER INS GROUP COM 410867105 28,647 -1,940 -6.34 3,885 -1.89 0.0023
2021-05-13 2021-03-31 13F HANOVER INS GROUP COM 410867105 30,587 6,252 25.69 3,960 39.19 0.0026
2021-02-11 2020-12-31 13F HANOVER INS GROUP COM 410867105 24,335 -4,743 -16.31 2,845 4.98 0.0017
2020-11-12 2020-09-30 13F HANOVER INS GROUP COM 410867105 29,078 -14,346 -33.04 2,710 -38.41 0.0018
2020-08-12 2020-06-30 13F HANOVER INS GROUP COM 410867105 43,424 17,230 65.78 4,400 85.50 0.0034
2020-05-12 2020-03-31 13F HANOVER INS GROUP COM 410867105 26,194 7,504 40.15 2,372 -7.13 0.0021
2020-02-12 2019-12-31 13F HANOVER INS GROUP COM 410867105 18,690 7,908 73.34 2,554 74.81 0.0018
2019-11-08 2019-09-30 13F HANOVER INS GROUP COM 410867105 10,782 -10,922 -50.32 1,461 -47.52 0.0012
2019-08-12 2019-06-30 13F HANOVER INS GROUP COM 410867105 21,704 15,699 261.43 2,784 305.83 0.0022
2019-05-13 2019-03-31 13F HANOVER INS GROUP COM 410867105 6,005 -13,565 -69.32 686 -69.99 0.0007
2019-02-12 2018-12-31 13F HANOVER INS GROUP COM 410867105 19,570 -46,820 -70.52 2,286 -72.09 0.0023
2018-11-13 2018-09-30 13F HANOVER INS GROUP COM 410867105 66,390 -18,389 -21.69 8,191 -19.19 0.0073
2018-08-10 2018-06-30 13F HANOVER INS GROUP COM 410867105 84,779 -2,596 -2.97 10,136 -1.59 0.0093
2018-05-11 2018-03-31 13F HANOVER INS GROUP COM 410867105 87,375 30,279 53.03 10,300 66.91 0.0085
2018-02-12 2017-12-31 13F HANOVER INS GROUP COM 410867105 57,096 500 0.88 6,171 12.49 0.0049
2017-11-13 2017-09-30 13F HANOVER INS GROUP COM 410867105 56,596 20,474 56.68 5,486 71.33 0.0045
2017-08-11 2017-06-30 13F HANOVER INS GROUP COM 410867105 36,122 -19,137 -34.63 3,202 -35.66 0.0029
2017-05-12 2017-03-31 13F HANOVER INS GROUP COM 410867105 55,259 -8,388 -13.18 4,977 -14.09 0.0044
2017-02-10 2016-12-31 13F HANOVER INS GROUP COM 410867105 63,647 21,020 49.31 5,793 80.24 0.0052
2016-11-10 2016-09-30 13F HANOVER INS GROUP COM 410867105 42,627 7,018 19.71 3,214 6.64 0.0030
2016-08-12 2016-06-30 13F HANOVER INS GROUP COM 410867105 35,609 9,324 35.47 3,014 27.07 0.0031
2016-05-13 2016-03-31 13F HANOVER INS GROUP COM 410867105 26,285 14,995 132.82 2,372 158.67 0.0027
2016-02-12 2015-12-31 13F HANOVER INS GROUP COM 410867105 11,290 -5,385 -32.29 917 -29.19 0.0009
2015-11-13 2015-09-30 13F HANOVER INS GROUP COM 410867105 16,675 -13,617 -44.95 1,295 -42.24 0.0012
2015-08-13 2015-06-30 13F HANOVER INS GROUP COM 410867105 30,292 -18,447 -37.85 2,242 -36.61 0.0020
2015-05-14 2015-03-31 13F HANOVER INS GROUP COM 410867105 48,739 16,094 49.30 3,537 51.93 0.0034
2015-02-17 2014-12-31 13F HANOVER INS GROUP COM 410867105 32,645 2,959 9.97 2,328 27.70 0.0021
2014-11-14 2014-09-30 13F HANOVER INS GROUP COM 410867105 29,686 13,676 85.42 1,823 80.32 0.0016
2014-08-14 2014-06-30 13F HANOVER INS GROUP COM 410867105 16,010 12,898 414.46 1,011 432.11 0.0010
2014-05-15 2014-03-31 13F HANOVER INS GROUP COM 410867105 3,112 -19,713 -86.37 190 -86.06 0.0002
2014-02-14 2013-12-31 13F HANOVER INS GROUP COM 410867105 22,825 10,667 87.74 1,363 102.83 0.0012
2013-11-14 2013-09-30 13F HANOVER INS GROUP COM 410867105 12,158 3,397 38.77 672 56.28 0.0006
2013-08-14 2013-06-30 13F HANOVER INS GROUP COM 410867105 8,761 8,761 430 0.0004
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.