REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

AMICA MUTUAL INSURANCE CO's Holding History (CIK: 0000857508)

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

Q3 2025

Shares 1,830 Value ($000) $1 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 1,830 Value ($000) $1 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 1,830 Value ($000) $1 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 1,830 Value ($000) $1 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 1,830 Value ($000) $2 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 1,830 Value ($000) $2 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 1,830 Value ($000) $2 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 3,068 Value ($000) $3 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 3,068 Value ($000) $3 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 3,068 Value ($000) $2 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 3,335 Value ($000) $3 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 3,335 Value ($000) $2 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 5,069 Value ($000) $3,492 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 4,516 Value ($000) $2,670 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 5,428 Value ($000) $3,791 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 5,428 Value ($000) $3,428 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 4,341 Value ($000) $2,627 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 4,341 Value ($000) $2,425 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 4,341 Value ($000) $2,054 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 4,592 Value ($000) $2,218 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 4,592 Value ($000) $2,571 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 4,592 Value ($000) $2,864 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 4,592 Value ($000) $2,242 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 4,592 Value ($000) $1,724 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 4,592 Value ($000) $1,274 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 2,231 Value ($000) $698 Avg Close $331.08 Range $293.64 - $413.60

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,830	$1	$564.28	$519.56 - $609.69
Q2 2025	1,830	$1	$556.12	$475.17 - $638.52
Q1 2025	1,830	$1	$684.44	$615.89 - $745.12
Q4 2024	1,830	$1	$834.60	$689.18 - $1055.74
Q3 2024	1,830	$2	$1106.73	$1002.85 - $1204.52
Q2 2024	1,830	$2	$964.05	$870.40 - $1075.21
Q1 2024	1,830	$2	$945.64	$866.58 - $992.82
Q4 2023	3,068	$3	$818.96	$764.95 - $894.90
Q3 2023	3,068	$3	$781.58	$684.72 - $842.83
Q2 2023	3,068	$2	$766.75	$681.03 - $832.93
Q1 2023	3,335	$3	$750.05	$664.32 - $830.39
Q4 2022	3,335	$2	$733.79	$690.81 - $774.70
Q3 2022	5,069	$3,492	$625.92	$560.71 - $750.51
Q2 2022	4,516	$2,670	$646.43	$535.04 - $743.30
Q1 2022	5,428	$3,791	$629.16	$589.59 - $706.29
Q4 2021	5,428	$3,428	$611.44	$536.21 - $670.14
Q3 2021	4,341	$2,627	$617.39	$551.89 - $682.83
Q2 2021	4,341	$2,425	$503.83	$466.78 - $566.85
Q1 2021	4,341	$2,054	$484.19	$438.57 - $555.83
Q4 2020	4,592	$2,218	$536.82	$468.18 - $616.55
Q3 2020	4,592	$2,571	$602.99	$537.02 - $660.97
Q2 2020	4,592	$2,864	$564.49	$473.82 - $642.77
Q1 2020	4,592	$2,242	$410.21	$326.32 - $515.14
Q4 2019	4,592	$1,724	$334.59	$270.76 - $380.14
Q3 2019	4,592	$1,274	$294.28	$269.87 - $318.99
Q2 2019	2,231	$698	$331.08	$293.64 - $413.60