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

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership67,767 shares
Latest Disclosed Value $ 11,747,409
Trexquant Investment LP reports 30.85% increase in ownership of THG / The Hanover Insurance Group, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 67,767 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $11,747,409 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 51,790 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of 30.85% during the quarter. The current value of the position is $13,091,907 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 67,767 15,977 30.85 11,747 24.11 0.0844
2026-02-17 2025-12-31 13F HANOVER INS GROUP COM 410867105 51,790 2,474 5.02 9,466 5.67 0.0844
2025-11-14 2025-09-30 13F HANOVER INS GROUP COM 410867105 49,316 24,274 96.93 8,957 110.60 0.0922
2025-08-12 2025-06-30 13F HANOVER INS GROUP COM 410867105 25,042 -30,039 -54.54 4,254 -55.61 0.0480
2025-05-14 2025-03-31 13F HANOVER INS GROUP COM 410867105 55,081 -2,218 -3.87 9,581 8.13 0.1115
2025-02-12 2024-12-31 13F HANOVER INS GROUP COM 410867105 57,299 40,265 236.38 8,862 251.35 0.1033
2024-11-12 2024-09-30 13F HANOVER INS GROUP COM 410867105 17,034 -3,290 -16.19 2,523 -1.06 0.0319
2024-08-13 2024-06-30 13F HANOVER INS GROUP COM 410867105 20,324 -4,144 -16.94 2,549 -23.48 0.0389
2024-05-14 2024-03-31 13F HANOVER INS GROUP COM 410867105 24,468 9,596 64.52 3,332 84.54 0.0664
2024-02-09 2023-12-31 13F HANOVER INS GROUP COM 410867105 14,872 14,872 1,806 0.0406
2023-11-13 2023-09-30 13F HANOVER INS GROUP COM 410867105 0 -2,187 -100.00 0 -100.00
2023-08-11 2023-06-30 13F HANOVER INS GROUP COM 410867105 2,187 -5,071 -69.87 247 -73.50 0.0065
2023-05-15 2023-03-31 13F HANOVER INS GROUP COM 410867105 7,258 -1,699 -18.97 933 -22.98 0.0256
2023-02-13 2022-12-31 13F HANOVER INS GROUP COM 410867105 8,957 8,957 1,210 0.0343
2022-11-14 2022-09-30 13F HANOVER INS GROUP COM 410867105 0 -1,476 -100.00 0 -100.00
2022-08-11 2022-06-30 13F HANOVER INS GROUP COM 410867105 1,476 1,476 216 0.0097
2022-05-13 2022-03-31 13F HANOVER INS GROUP COM 410867105 0 -4,014 -100.00 0 -100.00
2022-02-14 2021-12-31 13F HANOVER INS GROUP COM 410867105 4,014 4,014 526 0.0325
2021-02-11 2020-12-31 13F HANOVER INS GROUP COM 410867105 0 -19,299 -100.00 0 -100.00
2020-11-06 2020-09-30 13F HANOVER INS GROUP COM 410867105 19,299 19,299 1,798 0.1157
2020-08-07 2020-06-30 13F HANOVER INS GROUP COM 410867105 0 -9,008 -100.00 0 -100.00
2020-05-08 2020-03-31 13F HANOVER INS GROUP COM 410867105 9,008 9,008 816 0.0592
2020-02-12 2019-12-31 13F HANOVER INS GROUP COM 410867105 0 -2,108 -100.00 0 -100.00
2020-02-18 2019-09-30 13F/A-1 HANOVER INS GROUP COM 410867105 2,108 443 26.61 286 33.64 0.0247
2019-11-08 2019-09-30 13F HANOVER INS GROUP COM 410867105 2,108 443 286 24,701.0824
2019-08-09 2019-06-30 13F HANOVER INS GROUP COM 410867105 1,665 -3,154 -65.45 214 -61.09 0.0193
2019-05-13 2019-03-31 13F HANOVER INS GROUP COM 410867105 4,819 1,175 32.24 550 29.11 0.0391
2019-02-13 2018-12-31 13F HANOVER INS GROUP COM 410867105 3,644 3,644 426 0.0266
2018-11-09 2018-09-30 13F HANOVER INS GROUP COM 410867105 0 -1,749 -100.00 0 -100.00
2018-08-07 2018-06-30 13F HANOVER INS GROUP COM 410867105 1,749 1,749 209 0.0145
2016-11-10 2016-09-30 13F HANOVER INS GROUP COM 410867105 0 -10,509 -100.00 0 -100.00
2016-08-10 2016-06-30 13F HANOVER INS GROUP COM 410867105 10,509 4,365 71.04 889 60.47 0.1168
2016-05-11 2016-03-31 13F HANOVER INS GROUP COM 410867105 6,144 6,144 554 0.0649
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.