As of 30 Sep 2025, 457 institutional investors reported holding 31,373,973 shares of HANOVER INSURANCE GROUP, INC. - COM (THG).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 8,965,748 | $1,636,864,017 | -$14,733,464 | $182.77 | 229 |
| 2025 Q3 | 31,373,973 | $5,697,535,917 | -$159,260,774 | $181.63 | 457 |
| 2025 Q2 | 32,290,410 | $5,482,385,738 | +$84,915,190 | $169.87 | 430 |
| 2025 Q1 | 31,788,089 | $5,528,881,593 | +$27,327,239 | $173.95 | 433 |
| 2024 Q4 | 31,708,147 | $4,901,700,799 | +$113,437,453 | $154.66 | 403 |
| 2024 Q3 | 30,907,674 | $4,576,860,694 | -$59,608,857 | $148.11 | 371 |
| 2024 Q2 | 31,480,960 | $3,949,010,244 | +$69,360,064 | $125.44 | 367 |
| 2024 Q1 | 30,933,548 | $4,211,693,654 | -$18,025,197 | $136.17 | 344 |
| 2023 Q4 | 21,207 | $2,574,955 | -$5,494,498 | $121.42 | 5 |
| 2023 Q3 | 30,492,392 | $3,385,489,637 | +$53,539,155 | $110.98 | 325 |
| 2023 Q2 | 29,897,334 | $3,380,293,781 | -$72,360,205 | $113.03 | 327 |
| 2023 Q1 | 30,378,492 | $3,903,064,688 | -$1,409,419 | $128.50 | 336 |
| 2022 Q4 | 30,470,113 | $4,117,245,080 | +$20,524,357 | $135.13 | 339 |
| 2022 Q3 | 29,204,451 | $3,743,831,618 | -$90,664,084 | $128.14 | 310 |
| 2022 Q2 | 28,542,800 | $4,169,770,090 | +$100,492,738 | $146.25 | 335 |
| 2022 Q1 | 29,656,066 | $4,434,348,336 | -$7,473,352 | $149.52 | 339 |
| 2021 Q4 | 29,713,272 | $3,894,352,024 | -$105,432,116 | $131.06 | 331 |
| 2021 Q3 | 30,117,599 | $3,904,675,218 | -$76,200,016 | $129.62 | 316 |
| 2021 Q2 | 30,681,309 | $4,161,640,600 | -$77,892,628 | $135.64 | 319 |
| 2021 Q1 | 30,681,452 | $3,959,798,930 | -$12,003,236 | $129.46 | 345 |
| 2020 Q4 | 31,123,818 | $3,638,899,057 | -$79,296,916 | $116.92 | 317 |
| 2020 Q3 | 31,475,194 | $2,930,012,731 | -$65,839,830 | $93.18 | 327 |
| 2020 Q2 | 32,438,138 | $3,282,123,074 | +$15,626,796 | $101.33 | 329 |
| 2020 Q1 | 32,391,680 | $2,934,297,041 | -$120,661,305 | $90.58 | 321 |
| 2019 Q4 | 33,658,443 | $4,596,064,254 | +$38,036,276 | $136.67 | 342 |
| 2019 Q3 | 33,758,178 | $4,572,789,840 | -$146,098,063 | $135.54 | 337 |
| 2019 Q2 | 34,775,141 | $4,458,990,865 | +$37,017,970 | $128.30 | 322 |
| 2019 Q1 | 35,138,763 | $4,010,824,717 | -$113,731,988 | $114.17 | 315 |
| 2018 Q4 | 36,167,169 | $4,221,057,257 | +$12,416,703 | $116.77 | 314 |
| 2018 Q3 | 36,388,466 | $4,487,704,563 | +$13,989,257 | $123.37 | 300 |
| 2018 Q2 | 36,421,711 | $4,354,783,870 | -$8,993,193 | $119.56 | 305 |
| 2018 Q1 | 37,160,214 | $4,380,985,332 | +$77,499,144 | $117.89 | 302 |
| 2017 Q4 | 35,901,495 | $3,880,674,221 | +$42,437,691 | $108.08 | 290 |
| 2017 Q3 | 35,453,582 | $3,437,242,249 | +$6,721,624 | $96.93 | 264 |
| 2017 Q2 | 35,495,945 | $3,146,710,382 | +$75,951,133 | $88.63 | 255 |
| 2017 Q1 | 36,146,545 | $3,255,290,945 | +$350,904,927 | $90.06 | 270 |
| 2016 Q4 | 35,395,854 | $3,220,585,325 | +$42,981,068 | $91.01 | 284 |
| 2016 Q3 | 34,878,977 | $2,629,060,135 | -$71,152,106 | $75.42 | 279 |
| 2016 Q2 | 35,802,425 | $3,028,833,850 | +$617,454 | $84.62 | 293 |
| 2016 Q1 | 36,018,574 | $3,248,383,536 | -$62,424,670 | $90.22 | 272 |
| 2015 Q4 | 36,730,640 | $2,988,296,868 | +$11,850,441 | $81.34 | 272 |
| 2015 Q3 | 36,379,469 | $2,826,659,111 | -$48,099,576 | $77.70 | 265 |
| 2015 Q2 | 37,232,545 | $2,756,318,990 | -$60,329 | $74.03 | 252 |
| 2015 Q1 | 37,607,590 | $2,729,266,931 | +$7,968,090 | $72.58 | 248 |
| 2014 Q4 | 37,601,760 | $2,681,988,063 | +$41,235,452 | $71.32 | 255 |
| 2014 Q3 | 37,282,525 | $2,289,608,293 | +$37,765,914 | $61.42 | 250 |
| 2014 Q2 | 36,423,396 | $2,300,135,107 | -$48,905,546 | $63.15 | 248 |
| 2014 Q1 | 36,149,689 | $2,219,384,986 | -$19,124,635 | $61.44 | 250 |