REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

CSS LLC/IL's Holding History (CIK: 0001103646)

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

Q4 2025
Shares 340 Value ($000) $262 Avg Close $678.68 Range $540.32 - $792.77
Q2 2025
Shares 720 Value ($000) $378 Avg Close $556.12 Range $475.17 - $638.52
Q1 2025
Shares 680 Value ($000) $431 Avg Close $684.44 Range $615.89 - $745.12
Q4 2024
Shares 610 Value ($000) $435 Avg Close $834.60 Range $689.18 - $1055.74
Q1 2023
Shares 300 Value ($000) $247 Avg Close $750.05 Range $664.32 - $830.39
Q4 2022
Shares 500 Value ($000) $361 Avg Close $733.79 Range $690.81 - $774.70
Q3 2022
Shares 600 Value ($000) $413 Avg Close $625.92 Range $560.71 - $750.51
Q2 2022
Shares 600 Value ($000) $355 Avg Close $646.43 Range $535.04 - $743.30
Q1 2022
Shares 600 Value ($000) $419 Avg Close $629.16 Range $589.59 - $706.29
Q4 2021
Shares 800 Value ($000) $505 Avg Close $611.44 Range $536.21 - $670.14
Q3 2020
Shares 564 Value ($000) $316 Avg Close $602.99 Range $537.02 - $660.97
Q2 2020
Shares 899 Value ($000) $561 Avg Close $564.49 Range $473.82 - $642.77
Q4 2013
Shares 10,254 Value ($000) $2,822 Avg Close $286.03 Range $256.27 - $317.74