HANOVER INS GROUP INC

Ticker: THG CUSIP: 410867105 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 33,211 Value ($000) $6,070 Avg Close $179.10 Range $165.94 - $188.17

Q3 2025

Shares 33,267 Value ($000) $6,042 Avg Close $169.88 Range $159.08 - $181.40

Q2 2025

Shares 33,265 Value ($000) $5,651 Avg Close $164.62 Range $145.51 - $175.96

Q1 2025

Shares 33,265 Value ($000) $5,786 Avg Close $158.73 Range $142.18 - $173.32

Q4 2024

Shares 33,643 Value ($000) $5,203 Avg Close $151.15 Range $138.74 - $161.77

Q3 2024

Shares 34,314 Value ($000) $5,082 Avg Close $133.12 Range $119.24 - $146.99

Q2 2024

Shares 35,285 Value ($000) $4,426 Avg Close $125.15 Range $115.84 - $132.96

Q1 2024

Shares 36,402 Value ($000) $4,957 Avg Close $124.10 Range $115.23 - $131.81

Q4 2023

Shares 38,132 Value ($000) $4,630 Avg Close $112.93 Range $102.49 - $122.29

Q3 2023

Shares 39,799 Value ($000) $4,417 Avg Close $103.88 Range $97.78 - $108.49

Q2 2023

Shares 43,633 Value ($000) $4,932 Avg Close $110.93 Range $102.77 - $122.46

Q1 2023

Shares 44,764 Value ($000) $5,752 Avg Close $125.09 Range $112.03 - $138.21

Q4 2022

Shares 45,496 Value ($000) $6,148 Avg Close $128.96 Range $117.44 - $136.92

Q3 2022

Shares 44,961 Value ($000) $5,761 Avg Close $124.21 Range $113.29 - $137.43

Q2 2022

Shares 45,852 Value ($000) $6,706 Avg Close $134.26 Range $124.84 - $142.12

Q1 2022

Shares 45,899 Value ($000) $6,863 Avg Close $127.30 Range $118.50 - $139.60

Q4 2021

Shares 50,018 Value ($000) $6,555 Avg Close $117.31 Range $109.95 - $124.64

Q3 2021

Shares 60,368 Value ($000) $7,825 Avg Close $122.59 Range $114.44 - $128.61

Q2 2021

Shares 61,007 Value ($000) $8,275 Avg Close $122.79 Range $114.58 - $128.09

Q1 2021

Shares 63,226 Value ($000) $8,185 Avg Close $107.45 Range $98.82 - $119.36

Q4 2020

Shares 64,645 Value ($000) $7,558 Avg Close $95.46 Range $81.37 - $105.85

Q3 2020

Shares 64,865 Value ($000) $6,044 Avg Close $87.39 Range $77.56 - $97.06

Q2 2020

Shares 63,679 Value ($000) $6,453 Avg Close $85.74 Range $70.55 - $100.54

Q1 2020

Shares 63,792 Value ($000) $5,778 Avg Close $107.46 Range $65.59 - $125.59

Q4 2019

Shares 62,152 Value ($000) $8,494 Avg Close $114.64 Range $106.94 - $120.70

Q3 2019

Shares 63,958 Value ($000) $8,669 Avg Close $110.97 Range $106.84 - $115.75

Q2 2019

Shares 65,623 Value ($000) $8,419 Avg Close $102.22 Range $95.11 - $109.48

Q1 2019

Shares 68,128 Value ($000) $7,778 Avg Close $96.04 Range $89.32 - $101.29

Q4 2018

Shares 68,554 Value ($000) $8,005 Avg Close $89.53 Range $83.83 - $98.89

Q3 2018

Shares 69,114 Value ($000) $8,527 Avg Close $98.07 Range $90.89 - $104.29

Q2 2018

Shares 69,105 Value ($000) $8,262 Avg Close $94.08 Range $88.21 - $97.94

Q1 2018

Shares 69,112 Value ($000) $8,148 Avg Close $88.48 Range $82.15 - $95.63

Q4 2017

Shares 71,351 Value ($000) $7,712 Avg Close $80.77 Range $75.41 - $86.17

Q3 2017

Shares 70,963 Value ($000) $6,878 Avg Close $74.10 Range $68.07 - $78.06

Q2 2017

Shares 78,235 Value ($000) $6,934 Avg Close $66.61 Range $61.27 - $70.04

Q1 2017

Shares 86,685 Value ($000) $7,807 Avg Close $68.19 Range $63.66 - $71.74

Q4 2016

Shares 90,585 Value ($000) $8,244 Avg Close $63.85 Range $56.77 - $70.73

Q3 2016

Shares 92,785 Value ($000) $6,998 Avg Close $60.45 Range $56.64 - $64.77

Q2 2016

Shares 91,985 Value ($000) $7,784 Avg Close $65.15 Range $58.79 - $69.02

Q1 2016

Shares 96,625 Value ($000) $8,718 Avg Close $62.18 Range $56.69 - $68.91

Q4 2015

Shares 84,556 Value ($000) $6,878 Avg Close $61.90 Range $56.82 - $65.36

Q3 2015

Shares 83,247 Value ($000) $6,468 Avg Close $59.00 Range $55.61 - $61.95

Q2 2015

Shares 80,770 Value ($000) $5,979 Avg Close $53.20 Range $50.70 - $55.72

Q1 2015

Shares 83,323 Value ($000) $6,048 Avg Close $52.13 Range $49.88 - $54.01

Q4 2014

Shares 84,697 Value ($000) $6,041 Avg Close $49.49 Range $43.66 - $53.79

Q3 2014

Shares 83,938 Value ($000) $5,155 Avg Close $45.18 Range $41.99 - $46.80

Q2 2014

Shares 80,421 Value ($000) $5,079 Avg Close $43.91 Range $41.08 - $46.75

Q1 2014

Shares 80,021 Value ($000) $4,916 Avg Close $42.06 Range $37.93 - $44.42

Q4 2013

Shares 79,721 Value ($000) $4,760 Avg Close $42.09 Range $38.90 - $44.02

Q3 2013

Shares 79,121 Value ($000) $4,377 Avg Close $37.76 Range $34.18 - $40.24

Q2 2013

Shares 76,694 Value ($000) $3,753 Avg Close $34.64 Range $32.46 - $36.98

Q1 2013

Shares 78,326 Value ($000) $3,891 Avg Close $29.67 Range $27.15 - $35.08

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	33,211	$6,070	$179.10	$165.94 - $188.17
Q3 2025	33,267	$6,042	$169.88	$159.08 - $181.40
Q2 2025	33,265	$5,651	$164.62	$145.51 - $175.96
Q1 2025	33,265	$5,786	$158.73	$142.18 - $173.32
Q4 2024	33,643	$5,203	$151.15	$138.74 - $161.77
Q3 2024	34,314	$5,082	$133.12	$119.24 - $146.99
Q2 2024	35,285	$4,426	$125.15	$115.84 - $132.96
Q1 2024	36,402	$4,957	$124.10	$115.23 - $131.81
Q4 2023	38,132	$4,630	$112.93	$102.49 - $122.29
Q3 2023	39,799	$4,417	$103.88	$97.78 - $108.49
Q2 2023	43,633	$4,932	$110.93	$102.77 - $122.46
Q1 2023	44,764	$5,752	$125.09	$112.03 - $138.21
Q4 2022	45,496	$6,148	$128.96	$117.44 - $136.92
Q3 2022	44,961	$5,761	$124.21	$113.29 - $137.43
Q2 2022	45,852	$6,706	$134.26	$124.84 - $142.12
Q1 2022	45,899	$6,863	$127.30	$118.50 - $139.60
Q4 2021	50,018	$6,555	$117.31	$109.95 - $124.64
Q3 2021	60,368	$7,825	$122.59	$114.44 - $128.61
Q2 2021	61,007	$8,275	$122.79	$114.58 - $128.09
Q1 2021	63,226	$8,185	$107.45	$98.82 - $119.36
Q4 2020	64,645	$7,558	$95.46	$81.37 - $105.85
Q3 2020	64,865	$6,044	$87.39	$77.56 - $97.06
Q2 2020	63,679	$6,453	$85.74	$70.55 - $100.54
Q1 2020	63,792	$5,778	$107.46	$65.59 - $125.59
Q4 2019	62,152	$8,494	$114.64	$106.94 - $120.70
Q3 2019	63,958	$8,669	$110.97	$106.84 - $115.75
Q2 2019	65,623	$8,419	$102.22	$95.11 - $109.48
Q1 2019	68,128	$7,778	$96.04	$89.32 - $101.29
Q4 2018	68,554	$8,005	$89.53	$83.83 - $98.89
Q3 2018	69,114	$8,527	$98.07	$90.89 - $104.29
Q2 2018	69,105	$8,262	$94.08	$88.21 - $97.94
Q1 2018	69,112	$8,148	$88.48	$82.15 - $95.63
Q4 2017	71,351	$7,712	$80.77	$75.41 - $86.17
Q3 2017	70,963	$6,878	$74.10	$68.07 - $78.06
Q2 2017	78,235	$6,934	$66.61	$61.27 - $70.04
Q1 2017	86,685	$7,807	$68.19	$63.66 - $71.74
Q4 2016	90,585	$8,244	$63.85	$56.77 - $70.73
Q3 2016	92,785	$6,998	$60.45	$56.64 - $64.77
Q2 2016	91,985	$7,784	$65.15	$58.79 - $69.02
Q1 2016	96,625	$8,718	$62.18	$56.69 - $68.91
Q4 2015	84,556	$6,878	$61.90	$56.82 - $65.36
Q3 2015	83,247	$6,468	$59.00	$55.61 - $61.95
Q2 2015	80,770	$5,979	$53.20	$50.70 - $55.72
Q1 2015	83,323	$6,048	$52.13	$49.88 - $54.01
Q4 2014	84,697	$6,041	$49.49	$43.66 - $53.79
Q3 2014	83,938	$5,155	$45.18	$41.99 - $46.80
Q2 2014	80,421	$5,079	$43.91	$41.08 - $46.75
Q1 2014	80,021	$4,916	$42.06	$37.93 - $44.42
Q4 2013	79,721	$4,760	$42.09	$38.90 - $44.02
Q3 2013	79,121	$4,377	$37.76	$34.18 - $40.24
Q2 2013	76,694	$3,753	$34.64	$32.46 - $36.98
Q1 2013	78,326	$3,891	$29.67	$27.15 - $35.08