REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q4 2025

Shares 17,340 Value ($000) $13,385 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 17,690 Value ($000) $9,947 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 14,907 Value ($000) $7,826 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 14,976 Value ($000) $9,498 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 14,187 Value ($000) $10,106 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 15,551 Value ($000) $16,348 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 15,360 Value ($000) $16,143 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 15,306 Value ($000) $14,732 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 15,669 Value ($000) $13,762 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 16,306 Value ($000) $13,419 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 22,169 Value ($000) $0 Avg Close $766.75 Range $681.03 - $832.93

Q4 2022

Shares 13,718 Value ($000) $10 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 14,145 Value ($000) $10,427 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 14,380 Value ($000) $8,566 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 14,213 Value ($000) $10,228 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 14,525 Value ($000) $8,762 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 14,737 Value ($000) $8,435 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 19,013 Value ($000) $12,466 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 20,191 Value ($000) $9,865 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 20,569 Value ($000) $11,062 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 19,594 Value ($000) $11,361 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 18,681 Value ($000) $11,909 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 15,198 Value ($000) $8,606 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 15,585 Value ($000) $5,239 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 15,880 Value ($000) $4,855 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 15,144 Value ($000) $4,535 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 15,261 Value ($000) $6,230 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 29,946 Value ($000) $12,491 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 35,325 Value ($000) $13,448 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 39,716 Value ($000) $14,513 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 39,692 Value ($000) $12,536 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 36,873 Value ($000) $14,134 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 31,355 Value ($000) $12,746 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 30,545 Value ($000) $15,921 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 30,704 Value ($000) $11,257 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 29,990 Value ($000) $11,041 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 28,159 Value ($000) $10,942 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 22,198 Value ($000) $9,307 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 23,179 Value ($000) $9,427 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 24,277 Value ($000) $11,936 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 23,408 Value ($000) $10,888 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 46,616 Value ($000) $23,778 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 23,553 Value ($000) $10,634 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 39,510 Value ($000) $16,208 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 19,919 Value ($000) $7,181 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 22,712 Value ($000) $6,415 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 30,461 Value ($000) $9,147 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 30,214 Value ($000) $8,316 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 30,968 Value ($000) $9,689 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 30,075 Value ($000) $6,763 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,340	$13,385	$678.68	$540.32 - $792.77
Q3 2025	17,690	$9,947	$564.28	$519.56 - $609.69
Q2 2025	14,907	$7,826	$556.12	$475.17 - $638.52
Q1 2025	14,976	$9,498	$684.44	$615.89 - $745.12
Q4 2024	14,187	$10,106	$834.60	$689.18 - $1055.74
Q3 2024	15,551	$16,348	$1106.73	$1002.85 - $1204.52
Q2 2024	15,360	$16,143	$964.05	$870.40 - $1075.21
Q1 2024	15,306	$14,732	$945.64	$866.58 - $992.82
Q4 2023	15,669	$13,762	$818.96	$764.95 - $894.90
Q3 2023	16,306	$13,419	$781.58	$684.72 - $842.83
Q2 2023	22,169	$0	$766.75	$681.03 - $832.93
Q4 2022	13,718	$10	$733.79	$690.81 - $774.70
Q3 2022	14,145	$10,427	$625.92	$560.71 - $750.51
Q2 2022	14,380	$8,566	$646.43	$535.04 - $743.30
Q1 2022	14,213	$10,228	$629.16	$589.59 - $706.29
Q4 2021	14,525	$8,762	$611.44	$536.21 - $670.14
Q3 2021	14,737	$8,435	$617.39	$551.89 - $682.83
Q2 2021	19,013	$12,466	$503.83	$466.78 - $566.85
Q1 2021	20,191	$9,865	$484.19	$438.57 - $555.83
Q4 2020	20,569	$11,062	$536.82	$468.18 - $616.55
Q3 2020	19,594	$11,361	$602.99	$537.02 - $660.97
Q2 2020	18,681	$11,909	$564.49	$473.82 - $642.77
Q1 2020	15,198	$8,606	$410.21	$326.32 - $515.14
Q4 2019	15,585	$5,239	$334.59	$270.76 - $380.14
Q3 2019	15,880	$4,855	$294.28	$269.87 - $318.99
Q2 2019	15,144	$4,535	$331.08	$293.64 - $413.60
Q1 2019	15,261	$6,230	$409.51	$363.99 - $439.56
Q4 2018	29,946	$12,491	$364.00	$325.77 - $407.74
Q3 2018	35,325	$13,448	$378.49	$340.69 - $414.19
Q2 2018	39,716	$14,513	$311.03	$280.34 - $347.31
Q1 2018	39,692	$12,536	$345.90	$311.80 - $394.59
Q4 2017	36,873	$14,134	$402.77	$351.19 - $474.37
Q3 2017	31,355	$12,746	$473.21	$424.12 - $523.22
Q2 2017	30,545	$15,921	$435.19	$358.01 - $540.55
Q1 2017	30,704	$11,257	$368.62	$338.21 - $399.00
Q4 2016	29,990	$11,041	$378.17	$323.56 - $450.46
Q3 2016	28,159	$10,942	$398.92	$346.51 - $441.54
Q2 2016	22,198	$9,307	$383.00	$327.27 - $431.54
Q1 2016	23,179	$9,427	$409.79	$347.04 - $529.97
Q4 2015	24,277	$11,936	$538.82	$445.63 - $589.32
Q3 2015	23,408	$10,888	$534.07	$433.12 - $602.59
Q2 2015	46,616	$23,778	$485.93	$431.08 - $541.00
Q1 2015	23,553	$10,634	$421.46	$390.83 - $492.77
Q4 2014	39,510	$16,208	$391.09	$318.29 - $435.23
Q3 2014	19,919	$7,181	$333.32	$283.49 - $367.27
Q2 2014	22,712	$6,415	$294.74	$268.01 - $318.24
Q1 2014	30,461	$9,147	$306.39	$261.52 - $350.55
Q4 2013	30,214	$8,316	$286.03	$256.27 - $317.74
Q3 2013	30,968	$9,689	$261.58	$224.53 - $318.07
Q2 2013	30,075	$6,763	$231.58	$176.14 - $282.42