REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q4 2025

Shares 24,792 Value ($000) $19,136 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 23,714 Value ($000) $13,334 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 22,117 Value ($000) $11,611 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 18,143 Value ($000) $11,507 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 16,774 Value ($000) $11,949 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 9,745 Value ($000) $10,244 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 10,339 Value ($000) $10,867 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 10,259 Value ($000) $9,874 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 12,128 Value ($000) $10,652 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 10,989 Value ($000) $9,044 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 11,915 Value ($000) $8,561 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 12,240 Value ($000) $10,057 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 12,502 Value ($000) $9,020 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 12,931 Value ($000) $8,907 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 13,296 Value ($000) $7,860 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 15,112 Value ($000) $10,555 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 17,146 Value ($000) $10,829 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 18,016 Value ($000) $10,903 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 15,807 Value ($000) $8,829 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 12,403 Value ($000) $5,868 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 11,116 Value ($000) $5,370 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 10,418 Value ($000) $5,832 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 7,962 Value ($000) $4,966 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 10,180 Value ($000) $4,971 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 9,741 Value ($000) $3,658 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 7,233 Value ($000) $2,006 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 8,023 Value ($000) $2,511 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 6,811 Value ($000) $2,797 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 8,259 Value ($000) $3,085 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 8,150 Value ($000) $3,293 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 8,250 Value ($000) $2,846 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 6,262 Value ($000) $2,156 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 6,017 Value ($000) $2,262 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 7,755 Value ($000) $3,467 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 7,007 Value ($000) $3,441 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 5,808 Value ($000) $2,251 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 5,619 Value ($000) $2,063 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 5,734 Value ($000) $2,305 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 6,261 Value ($000) $2,186 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 6,185 Value ($000) $2,230 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 6,914 Value ($000) $3,753 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 7,383 Value ($000) $3,434 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 7,950 Value ($000) $4,055 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 7,631 Value ($000) $3,445 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 9,174 Value ($000) $3,764 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 9,890 Value ($000) $3,566 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 9,767 Value ($000) $2,759 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 9,469 Value ($000) $2,843 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 9,718 Value ($000) $2,675 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 9,504 Value ($000) $2,974 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 9,703 Value ($000) $2,182 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	24,792	$19,136	$678.68	$540.32 - $792.77
Q3 2025	23,714	$13,334	$564.28	$519.56 - $609.69
Q2 2025	22,117	$11,611	$556.12	$475.17 - $638.52
Q1 2025	18,143	$11,507	$684.44	$615.89 - $745.12
Q4 2024	16,774	$11,949	$834.60	$689.18 - $1055.74
Q3 2024	9,745	$10,244	$1106.73	$1002.85 - $1204.52
Q2 2024	10,339	$10,867	$964.05	$870.40 - $1075.21
Q1 2024	10,259	$9,874	$945.64	$866.58 - $992.82
Q4 2023	12,128	$10,652	$818.96	$764.95 - $894.90
Q3 2023	10,989	$9,044	$781.58	$684.72 - $842.83
Q2 2023	11,915	$8,561	$766.75	$681.03 - $832.93
Q1 2023	12,240	$10,057	$750.05	$664.32 - $830.39
Q4 2022	12,502	$9,020	$733.79	$690.81 - $774.70
Q3 2022	12,931	$8,907	$625.92	$560.71 - $750.51
Q2 2022	13,296	$7,860	$646.43	$535.04 - $743.30
Q1 2022	15,112	$10,555	$629.16	$589.59 - $706.29
Q4 2021	17,146	$10,829	$611.44	$536.21 - $670.14
Q3 2021	18,016	$10,903	$617.39	$551.89 - $682.83
Q2 2021	15,807	$8,829	$503.83	$466.78 - $566.85
Q1 2021	12,403	$5,868	$484.19	$438.57 - $555.83
Q4 2020	11,116	$5,370	$536.82	$468.18 - $616.55
Q3 2020	10,418	$5,832	$602.99	$537.02 - $660.97
Q2 2020	7,962	$4,966	$564.49	$473.82 - $642.77
Q1 2020	10,180	$4,971	$410.21	$326.32 - $515.14
Q4 2019	9,741	$3,658	$334.59	$270.76 - $380.14
Q3 2019	7,233	$2,006	$294.28	$269.87 - $318.99
Q2 2019	8,023	$2,511	$331.08	$293.64 - $413.60
Q1 2019	6,811	$2,797	$409.51	$363.99 - $439.56
Q4 2018	8,259	$3,085	$364.00	$325.77 - $407.74
Q3 2018	8,150	$3,293	$378.49	$340.69 - $414.19
Q2 2018	8,250	$2,846	$311.03	$280.34 - $347.31
Q1 2018	6,262	$2,156	$345.90	$311.80 - $394.59
Q4 2017	6,017	$2,262	$402.77	$351.19 - $474.37
Q3 2017	7,755	$3,467	$473.21	$424.12 - $523.22
Q2 2017	7,007	$3,441	$435.19	$358.01 - $540.55
Q1 2017	5,808	$2,251	$368.62	$338.21 - $399.00
Q4 2016	5,619	$2,063	$378.17	$323.56 - $450.46
Q3 2016	5,734	$2,305	$398.92	$346.51 - $441.54
Q2 2016	6,261	$2,186	$383.00	$327.27 - $431.54
Q1 2016	6,185	$2,230	$409.79	$347.04 - $529.97
Q4 2015	6,914	$3,753	$538.82	$445.63 - $589.32
Q3 2015	7,383	$3,434	$534.07	$433.12 - $602.59
Q2 2015	7,950	$4,055	$485.93	$431.08 - $541.00
Q1 2015	7,631	$3,445	$421.46	$390.83 - $492.77
Q4 2014	9,174	$3,764	$391.09	$318.29 - $435.23
Q3 2014	9,890	$3,566	$333.32	$283.49 - $367.27
Q2 2014	9,767	$2,759	$294.74	$268.01 - $318.24
Q1 2014	9,469	$2,843	$306.39	$261.52 - $350.55
Q4 2013	9,718	$2,675	$286.03	$256.27 - $317.74
Q3 2013	9,504	$2,974	$261.58	$224.53 - $318.07
Q2 2013	9,703	$2,182	$231.58	$176.14 - $282.42