NEWMARKET CORP

Ticker: NEU CUSIP: 651587107 Class: Common Stock

Aigen Investment Management, LP's Holding History (CIK: 0001741224)

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

Q3 2025

Shares 735 Value ($000) $609 Avg Close $765.22 Range $638.93 - $848.55

Q2 2025

Shares 1,548 Value ($000) $1,069 Avg Close $613.76 Range $504.22 - $687.53

Q3 2021

Shares 2,714 Value ($000) $919 Avg Close $298.18 Range $270.16 - $319.80

Q2 2021

Shares 3,497 Value ($000) $1,126 Avg Close $316.40 Range $278.28 - $356.60

Q1 2021

Shares 3,094 Value ($000) $1,176 Avg Close $359.80 Range $339.62 - $388.94

Q4 2020

Shares 4,013 Value ($000) $1,598 Avg Close $333.55 Range $297.49 - $367.48

Q3 2020

Shares 5,077 Value ($000) $1,738 Avg Close $338.72 Range $302.34 - $384.29

Q1 2020

Shares 138 Value ($000) $53 Avg Close $372.19 Range $269.90 - $430.80

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	735	$609	$765.22	$638.93 - $848.55
Q2 2025	1,548	$1,069	$613.76	$504.22 - $687.53
Q3 2021	2,714	$919	$298.18	$270.16 - $319.80
Q2 2021	3,497	$1,126	$316.40	$278.28 - $356.60
Q1 2021	3,094	$1,176	$359.80	$339.62 - $388.94
Q4 2020	4,013	$1,598	$333.55	$297.49 - $367.48
Q3 2020	5,077	$1,738	$338.72	$302.34 - $384.29
Q1 2020	138	$53	$372.19	$269.90 - $430.80