REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

Vanguard Personalized Indexing Management, LLC's Holding History (CIK: 0001767306)

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

Q4 2025

Shares 11,973 Value ($000) $9,242 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 11,072 Value ($000) $6,226 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 10,853 Value ($000) $5,699 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 10,061 Value ($000) $6,381 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 10,191 Value ($000) $7,259 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 10,605 Value ($000) $11,148 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 9,559 Value ($000) $10,047 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 8,430 Value ($000) $8,114 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 8,044 Value ($000) $7,065 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 7,969 Value ($000) $6,558 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 7,159 Value ($000) $5,144 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 6,906 Value ($000) $5,674 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 6,346 Value ($000) $4,579 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 6,194 Value ($000) $4,267 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 5,228 Value ($000) $3,090 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 3,947 Value ($000) $2,757 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 2,781 Value ($000) $1,756 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 2,340 Value ($000) $1,416 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 1,879 Value ($000) $1,049 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 1,212 Value ($000) $573 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 1,196 Value ($000) $578 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 1,244 Value ($000) $696 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 1,100 Value ($000) $686 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 1,041 Value ($000) $508 Avg Close $410.21 Range $326.32 - $515.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,973	$9,242	$678.68	$540.32 - $792.77
Q3 2025	11,072	$6,226	$564.28	$519.56 - $609.69
Q2 2025	10,853	$5,699	$556.12	$475.17 - $638.52
Q1 2025	10,061	$6,381	$684.44	$615.89 - $745.12
Q4 2024	10,191	$7,259	$834.60	$689.18 - $1055.74
Q3 2024	10,605	$11,148	$1106.73	$1002.85 - $1204.52
Q2 2024	9,559	$10,047	$964.05	$870.40 - $1075.21
Q1 2024	8,430	$8,114	$945.64	$866.58 - $992.82
Q4 2023	8,044	$7,065	$818.96	$764.95 - $894.90
Q3 2023	7,969	$6,558	$781.58	$684.72 - $842.83
Q2 2023	7,159	$5,144	$766.75	$681.03 - $832.93
Q1 2023	6,906	$5,674	$750.05	$664.32 - $830.39
Q4 2022	6,346	$4,579	$733.79	$690.81 - $774.70
Q3 2022	6,194	$4,267	$625.92	$560.71 - $750.51
Q2 2022	5,228	$3,090	$646.43	$535.04 - $743.30
Q1 2022	3,947	$2,757	$629.16	$589.59 - $706.29
Q4 2021	2,781	$1,756	$611.44	$536.21 - $670.14
Q3 2021	2,340	$1,416	$617.39	$551.89 - $682.83
Q2 2021	1,879	$1,049	$503.83	$466.78 - $566.85
Q1 2021	1,212	$573	$484.19	$438.57 - $555.83
Q4 2020	1,196	$578	$536.82	$468.18 - $616.55
Q3 2020	1,244	$696	$602.99	$537.02 - $660.97
Q2 2020	1,100	$686	$564.49	$473.82 - $642.77
Q1 2020	1,041	$508	$410.21	$326.32 - $515.14