REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q4 2025

Shares 311,167 Value ($000) $240,180 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 412,747 Value ($000) $433,896 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 483,026 Value ($000) $253,589 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 321,357 Value ($000) $203,814 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 385,178 Value ($000) $274,374 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 412,747 Value ($000) $434 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 350,115 Value ($000) $367,981 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 343,618 Value ($000) $330,729 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 298,237 Value ($000) $261,939 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 254,870 Value ($000) $209,748 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 278,984 Value ($000) $200 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 176,295 Value ($000) $145 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 228,174 Value ($000) $165 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 155,826 Value ($000) $107,343 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 120,242 Value ($000) $71,080 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 160,790 Value ($000) $112,300 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 489,609 Value ($000) $309,201 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 317,262 Value ($000) $191,999 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 177,798 Value ($000) $99,308 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 158,233 Value ($000) $74,867 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 173,182 Value ($000) $83,664 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 143,668 Value ($000) $80,422 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 166,848 Value ($000) $104,054 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 165,250 Value ($000) $80,691 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 242,340 Value ($000) $90,993 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 266,194 Value ($000) $73,841 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 191,582 Value ($000) $59,965 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 122,291 Value ($000) $50,214 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 119,649 Value ($000) $44,689 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 159,521 Value ($000) $64,451 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 133,077 Value ($000) $45,911 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 202,685 Value ($000) $69,797 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 160,013 Value ($000) $60,160 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 191,847 Value ($000) $85,777 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 75,025 Value ($000) $36,845 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 68,035 Value ($000) $26,364 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 99,785 Value ($000) $36,631 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 61,337 Value ($000) $24,657 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 82,789 Value ($000) $28,914 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 98,027 Value ($000) $35,287 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 125,824 Value ($000) $68,199 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 138,660 Value ($000) $64,477 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 90,932 Value ($000) $46,378 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 165,931 Value ($000) $74,836 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 105,289 Value ($000) $43,168 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 82,173 Value ($000) $29,583 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 105,751 Value ($000) $29,820 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 131,829 Value ($000) $39,548 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 128,376 Value ($000) $35,306 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 140,751 Value ($000) $43,914 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 112,272 Value ($000) $25,247 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	311,167	$240,180	$678.68	$540.32 - $792.77
Q3 2025	412,747	$433,896	$564.28	$519.56 - $609.69
Q2 2025	483,026	$253,589	$556.12	$475.17 - $638.52
Q1 2025	321,357	$203,814	$684.44	$615.89 - $745.12
Q4 2024	385,178	$274,374	$834.60	$689.18 - $1055.74
Q3 2024	412,747	$434	$1106.73	$1002.85 - $1204.52
Q2 2024	350,115	$367,981	$964.05	$870.40 - $1075.21
Q1 2024	343,618	$330,729	$945.64	$866.58 - $992.82
Q4 2023	298,237	$261,939	$818.96	$764.95 - $894.90
Q3 2023	254,870	$209,748	$781.58	$684.72 - $842.83
Q2 2023	278,984	$200	$766.75	$681.03 - $832.93
Q1 2023	176,295	$145	$750.05	$664.32 - $830.39
Q4 2022	228,174	$165	$733.79	$690.81 - $774.70
Q3 2022	155,826	$107,343	$625.92	$560.71 - $750.51
Q2 2022	120,242	$71,080	$646.43	$535.04 - $743.30
Q1 2022	160,790	$112,300	$629.16	$589.59 - $706.29
Q4 2021	489,609	$309,201	$611.44	$536.21 - $670.14
Q3 2021	317,262	$191,999	$617.39	$551.89 - $682.83
Q2 2021	177,798	$99,308	$503.83	$466.78 - $566.85
Q1 2021	158,233	$74,867	$484.19	$438.57 - $555.83
Q4 2020	173,182	$83,664	$536.82	$468.18 - $616.55
Q3 2020	143,668	$80,422	$602.99	$537.02 - $660.97
Q2 2020	166,848	$104,054	$564.49	$473.82 - $642.77
Q1 2020	165,250	$80,691	$410.21	$326.32 - $515.14
Q4 2019	242,340	$90,993	$334.59	$270.76 - $380.14
Q3 2019	266,194	$73,841	$294.28	$269.87 - $318.99
Q2 2019	191,582	$59,965	$331.08	$293.64 - $413.60
Q1 2019	122,291	$50,214	$409.51	$363.99 - $439.56
Q4 2018	119,649	$44,689	$364.00	$325.77 - $407.74
Q3 2018	159,521	$64,451	$378.49	$340.69 - $414.19
Q2 2018	133,077	$45,911	$311.03	$280.34 - $347.31
Q1 2018	202,685	$69,797	$345.90	$311.80 - $394.59
Q4 2017	160,013	$60,160	$402.77	$351.19 - $474.37
Q3 2017	191,847	$85,777	$473.21	$424.12 - $523.22
Q2 2017	75,025	$36,845	$435.19	$358.01 - $540.55
Q1 2017	68,035	$26,364	$368.62	$338.21 - $399.00
Q4 2016	99,785	$36,631	$378.17	$323.56 - $450.46
Q3 2016	61,337	$24,657	$398.92	$346.51 - $441.54
Q2 2016	82,789	$28,914	$383.00	$327.27 - $431.54
Q1 2016	98,027	$35,287	$409.79	$347.04 - $529.97
Q4 2015	125,824	$68,199	$538.82	$445.63 - $589.32
Q3 2015	138,660	$64,477	$534.07	$433.12 - $602.59
Q2 2015	90,932	$46,378	$485.93	$431.08 - $541.00
Q1 2015	165,931	$74,836	$421.46	$390.83 - $492.77
Q4 2014	105,289	$43,168	$391.09	$318.29 - $435.23
Q3 2014	82,173	$29,583	$333.32	$283.49 - $367.27
Q2 2014	105,751	$29,820	$294.74	$268.01 - $318.24
Q1 2014	131,829	$39,548	$306.39	$261.52 - $350.55
Q4 2013	128,376	$35,306	$286.03	$256.27 - $317.74
Q3 2013	140,751	$43,914	$261.58	$224.53 - $318.07
Q2 2013	112,272	$25,247	$231.58	$176.14 - $282.42