NEWMARKET CORP

Ticker: NEU CUSIP: 651587107 Class: Common Stock

Twin Tree Management, LP's Holding History (CIK: 0001535588)

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

Q4 2025

Shares 1,745 Value ($000) $1,199 Avg Close $760.94 Range $681.51 - $872.48

Q1 2021

Shares 119 Value ($000) $45 Avg Close $359.80 Range $339.62 - $388.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,745	$1,199	$760.94	$681.51 - $872.48
Q1 2021	119	$45	$359.80	$339.62 - $388.94