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

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership6,939 shares
Latest Disclosed Value $ 1,202,781
Advisor Group Holdings, Inc. reports 4.28% decrease in ownership of THG / The Hanover Insurance Group, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 6,939 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $1,202,876 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,249 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of -4.28% during the quarter. The current value of the position is $1,340,545 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 6,939 -310 -4.28 1,203 -9.21 0.0010
2026-02-17 2025-12-31 13F HANOVER INS GROUP COM 410867105 7,249 -1,189 -14.09 1,325 -10.30 0.0019
2025-11-14 2025-09-30 13F HANOVER INS GROUP COM 410867105 8,438 1,440 20.58 1,476 24.24 0.0021
2025-09-04 2025-06-30 13F/A-1 ANOVER INS GROUP COM 410867105 6,998 4,154 146.06 1,189 140.49 0.0021
2025-08-13 2025-06-30 13F ANOVER INS GROUP COM 410867105 3,282 438 516 0.0006
2025-05-12 2025-03-31 13F HANOVER INS GROUP COM 410867105 2,844 -1,439 -33.60 495 -25.38 0.0011
2025-06-06 2024-12-31 13F/A-1 HANOVER INS GROUP COM 410867105 4,283 644 17.70 662 23.05 0.0015
2025-02-07 2024-12-31 13F HANOVER INS GROUP COM 410867105 3,863 224 582 0.0015
2024-11-13 2024-09-30 13F HANOVER INS GROUP COM 410867105 3,639 1,834 101.61 539 138.05 0.0012
2024-08-13 2024-06-30 13F HANOVER INS GROUP COM 410867105 1,805 868 92.64 226 77.95 0.0005
2024-05-10 2024-03-31 13F HANOVER INS GROUP COM 410867105 937 -11,235 -92.30 128 -91.41 0.0003
2024-02-12 2023-12-31 13F HANOVER INS GROUP COM 410867105 12,172 -2,068 -14.52 1,479 -6.46 0.0026
2023-11-13 2023-09-30 13F HANOVER INS GROUP COM 410867105 14,240 4,899 52.45 1,581 49.62 0.0023
2023-08-21 2023-06-30 13F/A-1 HANOVER INS GROUP COM 410867105 9,341 -675 -6.74 1,056 -17.95 0.0019
2023-08-10 2023-06-30 13F HANOVER INS GROUP COM 410867105 10,349 333 1,055 0.0003
2023-05-12 2023-03-31 13F HANOVER INS GROUP COM 410867105 10,016 -117 -1.15 1,287 -6.06 0.0024
2023-02-10 2022-12-31 13F HANOVER INS GROUP COM 410867105 10,133 -593 -5.53 1,370 -0.36 0.0028
2022-11-14 2022-09-30 13F HANOVER INS GROUP COM 410867105 10,726 184 1.75 1,375 -10.83 0.0031
2022-08-10 2022-06-30 13F HANOVER INS GROUP COM 410867105 10,542 1,384 15.11 1,542 12.55 0.0034
2022-05-04 2022-03-31 13F HANOVER INS GROUP COM 410867105 9,158 36 0.39 1,370 14.74 0.0027
2022-02-03 2021-12-31 13F HANOVER INS GROUP COM 410867105 9,122 611 7.18 1,194 8.15 0.0023
2021-11-05 2021-09-30 13F HANOVER INS GROUP COM 410867105 8,511 -189 -2.17 1,104 -6.28 0.0023
2021-08-02 2021-06-30 13F HANOVER INS GROUP COM 410867105 8,700 36 0.42 1,178 4.99 0.0025
2021-05-13 2021-03-31 13F HANOVER INS GROUP COM 410867105 8,664 981 12.77 1,122 24.94 0.0027
2021-02-10 2020-12-31 13F HANOVER INS GROUP COM 410867105 7,683 346 4.72 898 31.67 0.0024
2020-11-12 2020-09-30 13F HANOVER INS GROUP COM 410867105 7,337 1,344 22.43 682 13.29 0.0020
2020-08-14 2020-06-30 13F HANOVER INS GROUP COM 410867105 5,993 -16,933 -73.86 602 40.65 0.0020
2020-05-18 2020-03-31 13F HANOVER INS GROUP COM 410867105 22,926 22,926 428 0.0018
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.