REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q4 2025
Shares 1,934,326 Value ($000) $1,493,048 Avg Close $678.68 Range $540.32 - $792.77
Q3 2025
Shares 1,979,453 Value ($000) $1,112,987 Avg Close $564.28 Range $519.56 - $609.69
Q2 2025
Shares 1,941,070 Value ($000) $1,019,062 Avg Close $556.12 Range $475.17 - $638.52
Q1 2025
Shares 1,635,981 Value ($000) $1,038 Avg Close $684.44 Range $615.89 - $745.12
Q4 2024
Shares 1,575,349 Value ($000) $1,122 Avg Close $834.60 Range $689.18 - $1055.74
Q3 2024
Shares 1,181,352 Value ($000) $1,242 Avg Close $1106.73 Range $1002.85 - $1204.52
Q2 2024
Shares 1,216,856 Value ($000) $1,279 Avg Close $964.05 Range $870.40 - $1075.21
Q1 2024
Shares 1,207,195 Value ($000) $1,162 Avg Close $945.64 Range $866.58 - $992.82
Q4 2023
Shares 1,219,067 Value ($000) $1,071 Avg Close $818.96 Range $764.95 - $894.90
Q3 2023
Shares 1,232,879 Value ($000) $1,015 Avg Close $781.58 Range $684.72 - $842.83
Q2 2023
Shares 1,277,484 Value ($000) $918 Avg Close $766.75 Range $681.03 - $832.93
Q1 2023
Shares 1,312,407 Value ($000) $1,078 Avg Close $750.05 Range $664.32 - $830.39
Q4 2022
Shares 1,337,681 Value ($000) $965 Avg Close $733.79 Range $690.81 - $774.70
Q3 2022
Shares 1,716,617 Value ($000) $1,182,526 Avg Close $625.92 Range $560.71 - $750.51
Q2 2022
Shares 1,764,788 Value ($000) $1,043,219 Avg Close $646.43 Range $535.04 - $743.30
Q1 2022
Shares 2,548,047 Value ($000) $1,779,607 Avg Close $629.16 Range $589.59 - $706.29
Q4 2021
Shares 2,629,151 Value ($000) $1,660,361 Avg Close $611.44 Range $536.21 - $670.14
Q3 2021
Shares 2,756,735 Value ($000) $1,668,321 Avg Close $617.39 Range $551.89 - $682.83
Q2 2021
Shares 2,754,224 Value ($000) $1,538,344 Avg Close $503.83 Range $466.78 - $566.85
Q1 2021
Shares 2,876,368 Value ($000) $1,360,925 Avg Close $484.19 Range $438.57 - $555.83
Q4 2020
Shares 2,964,583 Value ($000) $1,432,220 Avg Close $536.82 Range $468.18 - $616.55
Q3 2020
Shares 3,175,998 Value ($000) $1,777,861 Avg Close $602.99 Range $537.02 - $660.97
Q2 2020
Shares 3,259,698 Value ($000) $2,032,910 Avg Close $564.49 Range $473.82 - $642.77
Q1 2020
Shares 3,492,813 Value ($000) $1,705,506 Avg Close $410.21 Range $326.32 - $515.14
Q4 2019
Shares 3,692,675 Value ($000) $1,386,526 Avg Close $334.59 Range $270.76 - $380.14
Q3 2019
Shares 3,591,797 Value ($000) $996,364 Avg Close $294.28 Range $269.87 - $318.99
Q2 2019
Shares 3,280,321 Value ($000) $1,026,740 Avg Close $331.08 Range $293.64 - $413.60
Q1 2019
Shares 3,176,687 Value ($000) $1,304,411 Avg Close $409.51 Range $363.99 - $439.56
Q4 2018
Shares 3,161,147 Value ($000) $1,180,688 Avg Close $364.00 Range $325.77 - $407.74
Q3 2018
Shares 3,346,280 Value ($000) $1,352,031 Avg Close $378.49 Range $340.69 - $414.19
Q2 2018
Shares 3,305,142 Value ($000) $1,140,241 Avg Close $311.03 Range $280.34 - $347.31
Q1 2018
Shares 2,819,755 Value ($000) $971,011 Avg Close $345.90 Range $311.80 - $394.59
Q4 2017
Shares 2,101,611 Value ($000) $790,121 Avg Close $402.77 Range $351.19 - $474.37
Q3 2017
Shares 1,870,051 Value ($000) $836,137 Avg Close $473.21 Range $424.12 - $523.22
Q2 2017
Shares 1,822,296 Value ($000) $895,003 Avg Close $435.19 Range $358.01 - $540.55
Q1 2017
Shares 1,723,483 Value ($000) $667,867 Avg Close $368.62 Range $338.21 - $399.00
Q4 2016
Shares 1,715,305 Value ($000) $629,672 Avg Close $378.17 Range $323.56 - $450.46
Q3 2016
Shares 1,148,117 Value ($000) $461,566 Avg Close $398.92 Range $346.51 - $441.54
Q4 2013
Shares 8,825 Value ($000) $2,429 Avg Close $286.03 Range $256.27 - $317.74
Q3 2013
Shares 7,806 Value ($000) $2,442 Avg Close $261.58 Range $224.53 - $318.07
Q2 2013
Shares 7,390 Value ($000) $1,662 Avg Close $231.58 Range $176.14 - $282.42