REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 3,192 Value ($000) $2,464 Avg Close $678.68 Range $540.32 - $792.77
Q3 2025
Shares 3,749 Value ($000) $2,108 Avg Close $564.28 Range $519.56 - $609.69
Q1 2025
Shares 765 Value ($000) $485 Avg Close $684.44 Range $615.89 - $745.12
Q3 2020
Shares 956 Value ($000) $535 Avg Close $602.99 Range $537.02 - $660.97
Q1 2016
Shares 1,089 Value ($000) $393 Avg Close $409.79 Range $347.04 - $529.97
Q4 2015
Shares 1,089 Value ($000) $591 Avg Close $538.82 Range $445.63 - $589.32
Q4 2013
Shares 305 Value ($000) $84 Avg Close $286.03 Range $256.27 - $317.74
Q3 2013
Shares 405 Value ($000) $127 Avg Close $261.58 Range $224.53 - $318.07
Q2 2013
Shares 5,102 Value ($000) $1,147 Avg Close $231.58 Range $176.14 - $282.42