REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

TANG CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001232621)

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

Q4 2025
Shares 8,000 Value ($000) $6,175 Avg Close $678.68 Range $540.32 - $792.77
Q3 2025
Shares 10,000 Value ($000) $5,623 Avg Close $564.28 Range $519.56 - $609.69
Q2 2025
Shares 10,000 Value ($000) $5,250 Avg Close $556.12 Range $475.17 - $638.52
Q1 2025
Shares 10,000 Value ($000) $6,342 Avg Close $684.44 Range $615.89 - $745.12
Q4 2024
Shares 2,000 Value ($000) $1,425 Avg Close $834.60 Range $689.18 - $1055.74
Q4 2019
Shares 45,000 Value ($000) $16,897 Avg Close $334.59 Range $270.76 - $380.14