REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

Clearbridge Investments, LLC's Holding History (CIK: 0001348883)

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

Q4 2025

Shares 62,031 Value ($000) $47,880 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 64,726 Value ($000) $36,393 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 11,845 Value ($000) $6,219 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 6,724 Value ($000) $4,265 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 3,978 Value ($000) $2,834 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 3,952 Value ($000) $4,155 Avg Close $1106.73 Range $1002.85 - $1204.52

Q2 2024

Shares 1,433 Value ($000) $1,506 Avg Close $964.05 Range $870.40 - $1075.21

Q2 2020

Shares 80 Value ($000) $50 Avg Close $564.49 Range $473.82 - $642.77

Q1 2019

Shares 118,775 Value ($000) $48,771 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 877,965 Value ($000) $327,920 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 871,691 Value ($000) $352,198 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 876,329 Value ($000) $302,325 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 840,152 Value ($000) $289,315 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 806,762 Value ($000) $303,310 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 759,752 Value ($000) $339,700 Avg Close $473.21 Range $424.12 - $523.22

Q2 2017

Shares 730,571 Value ($000) $358,813 Avg Close $435.19 Range $358.01 - $540.55

Q1 2017

Shares 690,254 Value ($000) $267,480 Avg Close $368.62 Range $338.21 - $399.00

Q4 2016

Shares 444,723 Value ($000) $163,253 Avg Close $378.17 Range $323.56 - $450.46

Q3 2016

Shares 328,243 Value ($000) $131,960 Avg Close $398.92 Range $346.51 - $441.54

Q2 2016

Shares 302,092 Value ($000) $105,500 Avg Close $383.00 Range $327.27 - $431.54

Q1 2016

Shares 280,425 Value ($000) $101,076 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 184,095 Value ($000) $99,939 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 176,236 Value ($000) $81,974 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 194,741 Value ($000) $99,343 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 182,580 Value ($000) $82,431 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 179,590 Value ($000) $73,677 Avg Close $391.09 Range $318.29 - $435.23

Q3 2014

Shares 180,568 Value ($000) $65,098 Avg Close $333.32 Range $283.49 - $367.27

Q2 2014

Shares 42,731 Value ($000) $12,070 Avg Close $294.74 Range $268.01 - $318.24

Q1 2014

Shares 2,792 Value ($000) $838 Avg Close $306.39 Range $261.52 - $350.55

Q4 2013

Shares 3,046 Value ($000) $838 Avg Close $286.03 Range $256.27 - $317.74

Q3 2013

Shares 2,411 Value ($000) $754 Avg Close $261.58 Range $224.53 - $318.07

Q2 2013

Shares 3,013 Value ($000) $678 Avg Close $231.58 Range $176.14 - $282.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	62,031	$47,880	$678.68	$540.32 - $792.77
Q3 2025	64,726	$36,393	$564.28	$519.56 - $609.69
Q2 2025	11,845	$6,219	$556.12	$475.17 - $638.52
Q1 2025	6,724	$4,265	$684.44	$615.89 - $745.12
Q4 2024	3,978	$2,834	$834.60	$689.18 - $1055.74
Q3 2024	3,952	$4,155	$1106.73	$1002.85 - $1204.52
Q2 2024	1,433	$1,506	$964.05	$870.40 - $1075.21
Q2 2020	80	$50	$564.49	$473.82 - $642.77
Q1 2019	118,775	$48,771	$409.51	$363.99 - $439.56
Q4 2018	877,965	$327,920	$364.00	$325.77 - $407.74
Q3 2018	871,691	$352,198	$378.49	$340.69 - $414.19
Q2 2018	876,329	$302,325	$311.03	$280.34 - $347.31
Q1 2018	840,152	$289,315	$345.90	$311.80 - $394.59
Q4 2017	806,762	$303,310	$402.77	$351.19 - $474.37
Q3 2017	759,752	$339,700	$473.21	$424.12 - $523.22
Q2 2017	730,571	$358,813	$435.19	$358.01 - $540.55
Q1 2017	690,254	$267,480	$368.62	$338.21 - $399.00
Q4 2016	444,723	$163,253	$378.17	$323.56 - $450.46
Q3 2016	328,243	$131,960	$398.92	$346.51 - $441.54
Q2 2016	302,092	$105,500	$383.00	$327.27 - $431.54
Q1 2016	280,425	$101,076	$409.79	$347.04 - $529.97
Q4 2015	184,095	$99,939	$538.82	$445.63 - $589.32
Q3 2015	176,236	$81,974	$534.07	$433.12 - $602.59
Q2 2015	194,741	$99,343	$485.93	$431.08 - $541.00
Q1 2015	182,580	$82,431	$421.46	$390.83 - $492.77
Q4 2014	179,590	$73,677	$391.09	$318.29 - $435.23
Q3 2014	180,568	$65,098	$333.32	$283.49 - $367.27
Q2 2014	42,731	$12,070	$294.74	$268.01 - $318.24
Q1 2014	2,792	$838	$306.39	$261.52 - $350.55
Q4 2013	3,046	$838	$286.03	$256.27 - $317.74
Q3 2013	2,411	$754	$261.58	$224.53 - $318.07
Q2 2013	3,013	$678	$231.58	$176.14 - $282.42