REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 664,465 Value ($000) $512,881 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 7,620 Value ($000) $4,284 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 71,155 Value ($000) $37,356 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 17,414 Value ($000) $11,044 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 148,829 Value ($000) $106,015 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 440,609 Value ($000) $463,186 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 1,061,791 Value ($000) $1,115,974 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 1,092,975 Value ($000) $1,051,978 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 1,102,090 Value ($000) $967,955 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 1,506,885 Value ($000) $1,240,106 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 1,668,932 Value ($000) $1,199,194 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 1,767,919 Value ($000) $1,452,646 Avg Close $750.05 Range $664.32 - $830.39

Q4 2022

Shares 2,416,247 Value ($000) $1,743,298 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 2,443,289 Value ($000) $1,683,108 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 2,382,947 Value ($000) $1,408,633 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 2,890,203 Value ($000) $2,018,576 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 3,134,775 Value ($000) $1,979,673 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 3,368,065 Value ($000) $2,038,286 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 4,057,382 Value ($000) $2,266,210 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 3,876,380 Value ($000) $1,834,070 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 3,630,522 Value ($000) $1,753,941 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 3,478,527 Value ($000) $1,947,211 Avg Close $602.99 Range $537.02 - $660.97

Q2 2020

Shares 3,663,868 Value ($000) $2,284,971 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 2,056,759 Value ($000) $1,004,294 Avg Close $410.21 Range $326.32 - $515.14

Q4 2019

Shares 2,249,915 Value ($000) $844,798 Avg Close $334.59 Range $270.76 - $380.14

Q3 2019

Shares 1,767,956 Value ($000) $490,431 Avg Close $294.28 Range $269.87 - $318.99

Q2 2019

Shares 1,779,287 Value ($000) $556,917 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 2,116,722 Value ($000) $869,168 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 3,007,626 Value ($000) $1,123,350 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 4,076,411 Value ($000) $1,647,033 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 4,378,479 Value ($000) $1,510,532 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 4,322,468 Value ($000) $1,488,486 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 4,327,689 Value ($000) $1,627,038 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 4,848,834 Value ($000) $2,168,010 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 5,541,185 Value ($000) $2,721,497 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 6,135,559 Value ($000) $2,377,590 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 5,688,709 Value ($000) $2,088,267 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 6,958,832 Value ($000) $2,797,589 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 6,297,218 Value ($000) $2,199,177 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 6,212,394 Value ($000) $2,239,195 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 4,785,593 Value ($000) $2,597,955 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 5,025,054 Value ($000) $2,337,355 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 5,504,548 Value ($000) $2,808,035 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 5,791,338 Value ($000) $2,614,672 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 5,880,198 Value ($000) $2,412,351 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 5,836,340 Value ($000) $2,104,118 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 5,669,346 Value ($000) $1,601,421 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 4,478,105 Value ($000) $1,344,685 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 4,326,007 Value ($000) $1,190,691 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 4,318,756 Value ($000) $1,351,209 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 4,449,456 Value ($000) $1,000,594 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	664,465	$512,881	$678.68	$540.32 - $792.77
Q3 2025	7,620	$4,284	$564.28	$519.56 - $609.69
Q2 2025	71,155	$37,356	$556.12	$475.17 - $638.52
Q1 2025	17,414	$11,044	$684.44	$615.89 - $745.12
Q4 2024	148,829	$106,015	$834.60	$689.18 - $1055.74
Q3 2024	440,609	$463,186	$1106.73	$1002.85 - $1204.52
Q2 2024	1,061,791	$1,115,974	$964.05	$870.40 - $1075.21
Q1 2024	1,092,975	$1,051,978	$945.64	$866.58 - $992.82
Q4 2023	1,102,090	$967,955	$818.96	$764.95 - $894.90
Q3 2023	1,506,885	$1,240,106	$781.58	$684.72 - $842.83
Q2 2023	1,668,932	$1,199,194	$766.75	$681.03 - $832.93
Q1 2023	1,767,919	$1,452,646	$750.05	$664.32 - $830.39
Q4 2022	2,416,247	$1,743,298	$733.79	$690.81 - $774.70
Q3 2022	2,443,289	$1,683,108	$625.92	$560.71 - $750.51
Q2 2022	2,382,947	$1,408,633	$646.43	$535.04 - $743.30
Q1 2022	2,890,203	$2,018,576	$629.16	$589.59 - $706.29
Q4 2021	3,134,775	$1,979,673	$611.44	$536.21 - $670.14
Q3 2021	3,368,065	$2,038,286	$617.39	$551.89 - $682.83
Q2 2021	4,057,382	$2,266,210	$503.83	$466.78 - $566.85
Q1 2021	3,876,380	$1,834,070	$484.19	$438.57 - $555.83
Q4 2020	3,630,522	$1,753,941	$536.82	$468.18 - $616.55
Q3 2020	3,478,527	$1,947,211	$602.99	$537.02 - $660.97
Q2 2020	3,663,868	$2,284,971	$564.49	$473.82 - $642.77
Q1 2020	2,056,759	$1,004,294	$410.21	$326.32 - $515.14
Q4 2019	2,249,915	$844,798	$334.59	$270.76 - $380.14
Q3 2019	1,767,956	$490,431	$294.28	$269.87 - $318.99
Q2 2019	1,779,287	$556,917	$331.08	$293.64 - $413.60
Q1 2019	2,116,722	$869,168	$409.51	$363.99 - $439.56
Q4 2018	3,007,626	$1,123,350	$364.00	$325.77 - $407.74
Q3 2018	4,076,411	$1,647,033	$378.49	$340.69 - $414.19
Q2 2018	4,378,479	$1,510,532	$311.03	$280.34 - $347.31
Q1 2018	4,322,468	$1,488,486	$345.90	$311.80 - $394.59
Q4 2017	4,327,689	$1,627,038	$402.77	$351.19 - $474.37
Q3 2017	4,848,834	$2,168,010	$473.21	$424.12 - $523.22
Q2 2017	5,541,185	$2,721,497	$435.19	$358.01 - $540.55
Q1 2017	6,135,559	$2,377,590	$368.62	$338.21 - $399.00
Q4 2016	5,688,709	$2,088,267	$378.17	$323.56 - $450.46
Q3 2016	6,958,832	$2,797,589	$398.92	$346.51 - $441.54
Q2 2016	6,297,218	$2,199,177	$383.00	$327.27 - $431.54
Q1 2016	6,212,394	$2,239,195	$409.79	$347.04 - $529.97
Q4 2015	4,785,593	$2,597,955	$538.82	$445.63 - $589.32
Q3 2015	5,025,054	$2,337,355	$534.07	$433.12 - $602.59
Q2 2015	5,504,548	$2,808,035	$485.93	$431.08 - $541.00
Q1 2015	5,791,338	$2,614,672	$421.46	$390.83 - $492.77
Q4 2014	5,880,198	$2,412,351	$391.09	$318.29 - $435.23
Q3 2014	5,836,340	$2,104,118	$333.32	$283.49 - $367.27
Q2 2014	5,669,346	$1,601,421	$294.74	$268.01 - $318.24
Q1 2014	4,478,105	$1,344,685	$306.39	$261.52 - $350.55
Q4 2013	4,326,007	$1,190,691	$286.03	$256.27 - $317.74
Q3 2013	4,318,756	$1,351,209	$261.58	$224.53 - $318.07
Q2 2013	4,449,456	$1,000,594	$231.58	$176.14 - $282.42