REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

BOKF, NA's Holding History (CIK: 0000009634)

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

Q4 2025

Shares 1,376 Value ($000) $1,062 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 1,548 Value ($000) $870 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 2,185 Value ($000) $1,147 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 2,171 Value ($000) $1,377 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 3,203 Value ($000) $2,232 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 1,745 Value ($000) $1,770 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 1,965 Value ($000) $2,065 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 1,845 Value ($000) $1,788 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 1,875 Value ($000) $1,647 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 1,862 Value ($000) $1,452 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 3,877 Value ($000) $2,786 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 3,705 Value ($000) $3,044 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 4,539 Value ($000) $3,275 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 4,044 Value ($000) $2,786 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 3,862 Value ($000) $2,283 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 3,866 Value ($000) $2,700 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 3,723 Value ($000) $2,351 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 3,761 Value ($000) $2,277 Avg Close $617.39 Range $551.89 - $682.83

Q1 2021

Shares 5,483 Value ($000) $2,594 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 6,238 Value ($000) $3,013 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 5,649 Value ($000) $3,162 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 6,299 Value ($000) $3,928 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 6,376 Value ($000) $3,113 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 3,945 Value ($000) $1,481 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 3,859 Value ($000) $1,070 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 5,197 Value ($000) $1,626 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 5,224 Value ($000) $2,145 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 5,116 Value ($000) $1,911 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 3,805 Value ($000) $1,537 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 3,458 Value ($000) $1,193 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 4,150 Value ($000) $1,429 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 7,652 Value ($000) $2,877 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 7,434 Value ($000) $3,324 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 9,474 Value ($000) $4,653 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 9,045 Value ($000) $3,505 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 9,704 Value ($000) $3,562 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 9,383 Value ($000) $3,772 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 8,690 Value ($000) $3,034 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 8,576 Value ($000) $3,091 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 7,832 Value ($000) $4,252 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 8,034 Value ($000) $3,737 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 8,967 Value ($000) $4,575 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 10,183 Value ($000) $4,598 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 10,185 Value ($000) $4,178 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 12,251 Value ($000) $4,417 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 12,664 Value ($000) $3,577 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 13,576 Value ($000) $4,076 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 13,059 Value ($000) $3,595 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 15,990 Value ($000) $5,003 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 19,137 Value ($000) $4,304 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,376	$1,062	$678.68	$540.32 - $792.77
Q3 2025	1,548	$870	$564.28	$519.56 - $609.69
Q2 2025	2,185	$1,147	$556.12	$475.17 - $638.52
Q1 2025	2,171	$1,377	$684.44	$615.89 - $745.12
Q4 2024	3,203	$2,232	$834.60	$689.18 - $1055.74
Q3 2024	1,745	$1,770	$1106.73	$1002.85 - $1204.52
Q2 2024	1,965	$2,065	$964.05	$870.40 - $1075.21
Q1 2024	1,845	$1,788	$945.64	$866.58 - $992.82
Q4 2023	1,875	$1,647	$818.96	$764.95 - $894.90
Q3 2023	1,862	$1,452	$781.58	$684.72 - $842.83
Q2 2023	3,877	$2,786	$766.75	$681.03 - $832.93
Q1 2023	3,705	$3,044	$750.05	$664.32 - $830.39
Q4 2022	4,539	$3,275	$733.79	$690.81 - $774.70
Q3 2022	4,044	$2,786	$625.92	$560.71 - $750.51
Q2 2022	3,862	$2,283	$646.43	$535.04 - $743.30
Q1 2022	3,866	$2,700	$629.16	$589.59 - $706.29
Q4 2021	3,723	$2,351	$611.44	$536.21 - $670.14
Q3 2021	3,761	$2,277	$617.39	$551.89 - $682.83
Q1 2021	5,483	$2,594	$484.19	$438.57 - $555.83
Q4 2020	6,238	$3,013	$536.82	$468.18 - $616.55
Q3 2020	5,649	$3,162	$602.99	$537.02 - $660.97
Q2 2020	6,299	$3,928	$564.49	$473.82 - $642.77
Q1 2020	6,376	$3,113	$410.21	$326.32 - $515.14
Q4 2019	3,945	$1,481	$334.59	$270.76 - $380.14
Q3 2019	3,859	$1,070	$294.28	$269.87 - $318.99
Q2 2019	5,197	$1,626	$331.08	$293.64 - $413.60
Q1 2019	5,224	$2,145	$409.51	$363.99 - $439.56
Q4 2018	5,116	$1,911	$364.00	$325.77 - $407.74
Q3 2018	3,805	$1,537	$378.49	$340.69 - $414.19
Q2 2018	3,458	$1,193	$311.03	$280.34 - $347.31
Q1 2018	4,150	$1,429	$345.90	$311.80 - $394.59
Q4 2017	7,652	$2,877	$402.77	$351.19 - $474.37
Q3 2017	7,434	$3,324	$473.21	$424.12 - $523.22
Q2 2017	9,474	$4,653	$435.19	$358.01 - $540.55
Q1 2017	9,045	$3,505	$368.62	$338.21 - $399.00
Q4 2016	9,704	$3,562	$378.17	$323.56 - $450.46
Q3 2016	9,383	$3,772	$398.92	$346.51 - $441.54
Q2 2016	8,690	$3,034	$383.00	$327.27 - $431.54
Q1 2016	8,576	$3,091	$409.79	$347.04 - $529.97
Q4 2015	7,832	$4,252	$538.82	$445.63 - $589.32
Q3 2015	8,034	$3,737	$534.07	$433.12 - $602.59
Q2 2015	8,967	$4,575	$485.93	$431.08 - $541.00
Q1 2015	10,183	$4,598	$421.46	$390.83 - $492.77
Q4 2014	10,185	$4,178	$391.09	$318.29 - $435.23
Q3 2014	12,251	$4,417	$333.32	$283.49 - $367.27
Q2 2014	12,664	$3,577	$294.74	$268.01 - $318.24
Q1 2014	13,576	$4,076	$306.39	$261.52 - $350.55
Q4 2013	13,059	$3,595	$286.03	$256.27 - $317.74
Q3 2013	15,990	$5,003	$261.58	$224.53 - $318.07
Q2 2013	19,137	$4,304	$231.58	$176.14 - $282.42