REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

PEAK6 LLC's Holding History (CIK: 0001389958)

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

Q4 2025

Shares 3 Value ($000) $2 Avg Close $678.68 Range $540.32 - $792.77

Q3 2025

Shares 11,847 Value ($000) $6,661 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 37,230 Value ($000) $19,546 Avg Close $556.12 Range $475.17 - $638.52

Q4 2024

Shares 1 Value ($000) $1 Avg Close $834.60 Range $689.18 - $1055.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3	$2	$678.68	$540.32 - $792.77
Q3 2025	11,847	$6,661	$564.28	$519.56 - $609.69
Q2 2025	37,230	$19,546	$556.12	$475.17 - $638.52
Q4 2024	1	$1	$834.60	$689.18 - $1055.74