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

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership116 shares
Latest Disclosed Value $ 20,109
Assetmark, Inc ownership in THG / The Hanover Insurance Group, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 116 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $20,109 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 116 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 $21,617 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)
2026-05-06 2026-03-31 13F HANOVER INS GROUP COM 410867105 116 0 0.00 20 -4.76 0.0000
2026-01-23 2025-12-31 13F HANOVER INS GROUP COM 410867105 116 4 3.57 21 5.00 0.0000
2025-11-06 2025-09-30 13F HANOVER INS GROUP COM 410867105 112 65 138.30 20 185.71 0.0000
2025-08-04 2025-06-30 13F HANOVER INS GROUP COM 410867105 47 32 213.33 8 250.00 0.0000
2025-05-06 2025-03-31 13F HANOVER INS GROUP COM 410867105 15 -2 -11.76 3 0.00 0.0000
2025-02-06 2024-12-31 13F HANOVER INS GROUP COM 410867105 17 -645 -97.43 3 -97.96 0.0000
2024-11-01 2024-09-30 13F HANOVER INS GROUP COM 410867105 662 62 10.33 98 30.67 0.0003
2024-08-13 2024-06-30 13F HANOVER INS GROUP COM 410867105 600 -306 -33.77 75 -39.02 0.0002
2024-05-07 2024-03-31 13F HANOVER INS GROUP COM 410867105 906 -364 -28.66 123 -20.13 0.0004
2024-02-09 2023-12-31 13F HANOVER INS GROUP COM 410867105 1,270 337 36.12 154 49.51 0.0006
2023-10-27 2023-09-30 13F HANOVER INS GROUP COM 410867105 933 113 13.78 104 11.96 0.0004
2023-08-11 2023-06-30 13F HANOVER INS GROUP INC COM COM 410867105 820 230 38.98 93 22.67 0.0004
2023-05-05 2023-03-31 13F HANOVER INS GROUP INC COM COM 410867105 590 175 42.17 76 33.93 0.0003
2023-02-10 2022-12-31 13F HANOVER INS GROUP COM 410867105 415 72 20.99 56 27.27 0.0002
2022-11-01 2022-09-30 13F HANOVER INS GROUP COM 410867105 343 99 40.57 44 22.22 0.0002
2022-08-03 2022-06-30 13F HANOVER INS GROUP INC COM COM 410867105 244 142 139.22 36 140.00 0.0002
2022-05-13 2022-03-31 13F HANOVER INS GROUP INC COM COM 410867105 102 98 2,450.00 15 1,400.00 0.0001
2022-02-14 2021-12-31 13F HANOVER INS GROUP INC COM COM 410867105 4 0 0.00 1 0.00 0.0000
2021-11-12 2021-09-30 13F HANOVER INS GROUP INC COM COM 410867105 4 4 1 0.0000
2021-08-16 2021-06-30 13F HANOVER INS GROUP COM 410867105 0 -33 -100.00 0 -100.00
2021-05-14 2021-03-31 13F HANOVER INS GROUP COM 410867105 33 3 10.00 4 0.00 0.0000
2021-02-10 2020-12-31 13F HANOVER INS GROUP INC COM COM 410867105 30 -8 -21.05 4 0.00 0.0000
2020-11-13 2020-09-30 13F HANOVER INS GROUP INC COM COM 410867105 38 0 0.00 4 0.00 0.0000
2020-08-11 2020-06-30 13F HANOVER INS GROUP INC COM COM 410867105 38 -295 -88.59 4 -86.67 0.0000
2020-05-12 2020-03-31 13F HANOVER INS GROUP INC COM COM 410867105 333 -21,730 -98.49 30 -99.00 0.0003
2020-02-11 2019-12-31 13F HANOVER INS GROUP INC COM COM 410867105 22,063 21,240 2,580.80 3,015 2,591.96 0.0229
2019-11-13 2019-09-30 13F HANOVER INS GROUP INC COM COM 410867105 823 68 9.01 112 15.46 0.0009
2019-08-14 2019-06-30 13F HANOVER INS GROUP INC COM COM 410867105 755 182 31.76 97 49.23 0.0008
2019-05-14 2019-03-31 13F HANOVER INS GROUP INC COM COM 410867105 573 536 1,448.65 65 1,525.00 0.0006
2019-02-13 2018-12-31 13F HANOVER INS GROUP INC COM COM 410867105 37 9 32.14 4 33.33 0.0000
2018-11-13 2018-09-30 13F HANOVER INS GROUP INC COM COM 410867105 28 0 0.00 3 0.00 0.0000
2018-08-01 2018-06-30 13F HANOVER INS GROUP INC COM COM 410867105 28 0 0.00 3 0.00 0.0000
2018-05-16 2018-03-31 13F HANOVER INS GROUP INC COM COM 410867105 28 -6 -17.65 3 -25.00 0.0000
2018-02-13 2017-12-31 13F HANOVER INS GROUP INC COM COM 410867105 34 3 9.68 4 33.33 0.0000
2017-11-08 2017-09-30 13F HANOVER INS GROUP INC COM COM 410867105 31 11 55.00 3 50.00 0.0000
2017-08-14 2017-06-30 13F HANOVER INS GROUP INC COM COM 410867105 20 20 2 0.0000
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.