NEWMARKET CORP

Ticker: NEU CUSIP: 651587107 Class: Common Stock

PEAK6 LLC's Holding History (CIK: 0001389958)

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

Q2 2025

Shares 494 Value ($000) $341 Avg Close $613.76 Range $504.22 - $687.53

Q1 2025

Shares 666 Value ($000) $377 Avg Close $518.78 Range $472.01 - $565.18

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	494	$341	$613.76	$504.22 - $687.53
Q1 2025	666	$377	$518.78	$472.01 - $565.18