REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025
Shares 158,680 Value ($000) $122,480 Avg Close $678.68 Range $540.32 - $792.77
Q3 2025
Shares 162,835 Value ($000) $91,557 Avg Close $564.28 Range $519.56 - $609.69
Q2 2025
Shares 164,123 Value ($000) $86,165 Avg Close $556.12 Range $475.17 - $638.52
Q1 2025
Shares 166,096 Value ($000) $105,343 Avg Close $684.44 Range $615.89 - $745.12
Q4 2024
Shares 167,889 Value ($000) $119,592 Avg Close $834.60 Range $689.18 - $1055.74
Q3 2024
Shares 173,145 Value ($000) $182,017 Avg Close $1106.73 Range $1002.85 - $1204.52
Q2 2024
Shares 173,727 Value ($000) $182,592 Avg Close $964.05 Range $870.40 - $1075.21
Q1 2024
Shares 173,049 Value ($000) $166,558 Avg Close $945.64 Range $866.58 - $992.82
Q4 2023
Shares 171,401 Value ($000) $150,540 Avg Close $818.96 Range $764.95 - $894.90
Q3 2023
Shares 170,740 Value ($000) $140,512 Avg Close $781.58 Range $684.72 - $842.83
Q2 2023
Shares 176,560 Value ($000) $126,865 Avg Close $766.75 Range $681.03 - $832.93
Q1 2023
Shares 179,719 Value ($000) $147,670 Avg Close $750.05 Range $664.32 - $830.39
Q4 2022
Shares 181,549 Value ($000) $130,986 Avg Close $733.79 Range $690.81 - $774.70
Q3 2022
Shares 179,870 Value ($000) $123,907 Avg Close $625.92 Range $560.71 - $750.51
Q2 2022
Shares 180,120 Value ($000) $106,474 Avg Close $646.43 Range $535.04 - $743.30
Q1 2022
Shares 177,257 Value ($000) $123,800 Avg Close $629.16 Range $589.59 - $706.29
Q4 2021
Shares 185,787 Value ($000) $117,328 Avg Close $611.44 Range $536.21 - $670.14
Q3 2021
Shares 177,241 Value ($000) $107,263 Avg Close $617.39 Range $551.89 - $682.83
Q2 2021
Shares 176,266 Value ($000) $98,452 Avg Close $503.83 Range $466.78 - $566.85
Q1 2021
Shares 186,103 Value ($000) $88,053 Avg Close $484.19 Range $438.57 - $555.83
Q4 2020
Shares 185,012 Value ($000) $89,381 Avg Close $536.82 Range $468.18 - $616.55
Q3 2020
Shares 180,581 Value ($000) $101,086 Avg Close $602.99 Range $537.02 - $660.97
Q2 2020
Shares 175,170 Value ($000) $109,245 Avg Close $564.49 Range $473.82 - $642.77
Q1 2020
Shares 145,718 Value ($000) $71,153 Avg Close $410.21 Range $326.32 - $515.14
Q4 2019
Shares 146,227 Value ($000) $54,905 Avg Close $334.59 Range $270.76 - $380.14
Q3 2019
Shares 135,655 Value ($000) $37,631 Avg Close $294.28 Range $269.87 - $318.99
Q2 2019
Shares 134,679 Value ($000) $42,155 Avg Close $331.08 Range $293.64 - $413.60
Q1 2019
Shares 132,428 Value ($000) $54,378 Avg Close $409.51 Range $363.99 - $439.56
Q4 2018
Shares 130,101 Value ($000) $48,593 Avg Close $364.00 Range $325.77 - $407.74
Q3 2018
Shares 127,454 Value ($000) $51,497 Avg Close $378.49 Range $340.69 - $414.19
Q2 2018
Shares 127,448 Value ($000) $43,968 Avg Close $311.03 Range $280.34 - $347.31
Q1 2018
Shares 126,102 Value ($000) $43,424 Avg Close $345.90 Range $311.80 - $394.59
Q4 2017
Shares 130,405 Value ($000) $49,027 Avg Close $402.77 Range $351.19 - $474.37
Q3 2017
Shares 131,173 Value ($000) $58,650 Avg Close $473.21 Range $424.12 - $523.22
Q2 2017
Shares 144,522 Value ($000) $70,980 Avg Close $435.19 Range $358.01 - $540.55
Q1 2017
Shares 154,470 Value ($000) $59,859 Avg Close $368.62 Range $338.21 - $399.00
Q4 2016
Shares 161,670 Value ($000) $59,347 Avg Close $378.17 Range $323.56 - $450.46
Q3 2016
Shares 165,870 Value ($000) $66,683 Avg Close $398.92 Range $346.51 - $441.54
Q2 2016
Shares 164,470 Value ($000) $57,438 Avg Close $383.00 Range $327.27 - $431.54
Q1 2016
Shares 166,710 Value ($000) $60,089 Avg Close $409.79 Range $347.04 - $529.97
Q4 2015
Shares 145,386 Value ($000) $78,926 Avg Close $538.82 Range $445.63 - $589.32
Q3 2015
Shares 143,071 Value ($000) $66,548 Avg Close $534.07 Range $433.12 - $602.59
Q2 2015
Shares 143,271 Value ($000) $73,087 Avg Close $485.93 Range $431.08 - $541.00
Q1 2015
Shares 144,532 Value ($000) $65,253 Avg Close $421.46 Range $390.83 - $492.77
Q4 2014
Shares 147,032 Value ($000) $60,320 Avg Close $391.09 Range $318.29 - $435.23
Q3 2014
Shares 145,610 Value ($000) $52,495 Avg Close $333.32 Range $283.49 - $367.27
Q2 2014
Shares 146,353 Value ($000) $41,340 Avg Close $294.74 Range $268.01 - $318.24
Q1 2014
Shares 145,683 Value ($000) $43,746 Avg Close $306.39 Range $261.52 - $350.55
Q4 2013
Shares 144,983 Value ($000) $39,905 Avg Close $286.03 Range $256.27 - $317.74
Q3 2013
Shares 143,983 Value ($000) $45,048 Avg Close $261.58 Range $224.53 - $318.07
Q2 2013
Shares 139,565 Value ($000) $31,385 Avg Close $231.58 Range $176.14 - $282.42
Q1 2013
Shares 134,288 Value ($000) $23,688 Avg Close $170.72 Range $153.31 - $184.76