NEWMARKET CORP

Ticker: NEU CUSIP: 651587107 Class: Common Stock

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2025

Shares 1,837 Value ($000) $1,262 Avg Close $760.94 Range $681.51 - $872.48

Q3 2025

Shares 1,837 Value ($000) $1,521 Avg Close $765.22 Range $638.93 - $848.55

Q2 2025

Shares 1,837 Value ($000) $1,269 Avg Close $613.76 Range $504.22 - $687.53

Q1 2025

Shares 1,837 Value ($000) $1,041 Avg Close $518.78 Range $472.01 - $565.18

Q4 2024

Shares 1,837 Value ($000) $971 Avg Close $524.83 Range $505.33 - $552.01

Q3 2024

Shares 1,837 Value ($000) $1,014 Avg Close $534.11 Range $491.57 - $581.63

Q2 2024

Shares 1,637 Value ($000) $844 Avg Close $539.68 Range $481.41 - $618.19

Q1 2024

Shares 1,737 Value ($000) $1,102 Avg Close $579.25 Range $521.43 - $627.84

Q4 2023

Shares 1,637 Value ($000) $894 Avg Close $484.07 Range $420.31 - $558.62

Q3 2023

Shares 1,637 Value ($000) $745 Avg Close $432.54 Range $384.81 - $455.58

Q2 2023

Shares 1,637 Value ($000) $658 Avg Close $371.63 Range $342.24 - $391.75

Q1 2023

Shares 1,737 Value ($000) $634 Avg Close $328.40 Range $294.10 - $350.56

Q4 2022

Shares 1,737 Value ($000) $540 Avg Close $289.43 Range $270.68 - $304.97

Q3 2022

Shares 1,737 Value ($000) $523 Avg Close $280.17 Range $261.50 - $291.64

Q2 2022

Shares 1,737 Value ($000) $523 Avg Close $299.74 Range $266.47 - $325.87

Q1 2022

Shares 1,737 Value ($000) $563 Avg Close $302.02 Range $272.47 - $332.04

Q4 2021

Shares 1,768 Value ($000) $606 Avg Close $315.81 Range $293.55 - $346.26

Q3 2021

Shares 1,768 Value ($000) $599 Avg Close $298.18 Range $270.16 - $319.80

Q2 2021

Shares 1,868 Value ($000) $601 Avg Close $316.40 Range $278.28 - $356.60

Q1 2021

Shares 2,668 Value ($000) $1,014 Avg Close $359.80 Range $339.62 - $388.94

Q4 2020

Shares 2,668 Value ($000) $1,063 Avg Close $333.55 Range $297.49 - $367.48

Q3 2020

Shares 2,668 Value ($000) $913 Avg Close $338.72 Range $302.34 - $384.29

Q2 2020

Shares 2,668 Value ($000) $1,068 Avg Close $365.81 Range $326.77 - $406.22

Q1 2020

Shares 2,100 Value ($000) $804 Avg Close $372.19 Range $269.90 - $430.80

Q4 2019

Shares 2,200 Value ($000) $1,070 Avg Close $422.68 Range $399.06 - $443.47

Q3 2019

Shares 2,100 Value ($000) $991 Avg Close $390.45 Range $346.89 - $427.60

Q2 2019

Shares 2,600 Value ($000) $1,042 Avg Close $360.19 Range $334.73 - $381.37

Q1 2019

Shares 3,100 Value ($000) $1,344 Avg Close $366.76 Range $341.11 - $392.35

Q4 2018

Shares 3,200 Value ($000) $1,319 Avg Close $341.94 Range $304.59 - $367.37

Q3 2018

Shares 3,300 Value ($000) $1,338 Avg Close $343.80 Range $316.13 - $356.21

Q2 2018

Shares 3,400 Value ($000) $1,375 Avg Close $334.90 Range $306.56 - $357.60

Q1 2018

Shares 3,300 Value ($000) $1,326 Avg Close $347.26 Range $318.29 - $372.85

Q4 2017

Shares 3,300 Value ($000) $1,311 Avg Close $343.86 Range $321.43 - $368.50

Q3 2017

Shares 3,500 Value ($000) $1,490 Avg Close $368.90 Range $345.75 - $397.32

Q2 2017

Shares 3,800 Value ($000) $1,750 Avg Close $388.47 Range $372.47 - $407.14

Q1 2017

Shares 3,800 Value ($000) $1,722 Avg Close $367.25 Range $348.66 - $383.47

Q4 2016

Shares 3,700 Value ($000) $1,568 Avg Close $344.78 Range $323.04 - $364.59

Q3 2016

Shares 3,700 Value ($000) $1,588 Avg Close $354.36 Range $332.64 - $372.62

Q2 2016

Shares 4,000 Value ($000) $1,658 Avg Close $334.36 Range $320.79 - $345.81

Q1 2016

Shares 4,000 Value ($000) $1,585 Avg Close $303.19 Range $266.10 - $333.74

Q4 2015

Shares 4,000 Value ($000) $1,523 Avg Close $319.11 Range $286.21 - $344.62

Q3 2015

Shares 4,700 Value ($000) $1,678 Avg Close $331.86 Range $287.01 - $377.57

Q2 2015

Shares 4,800 Value ($000) $2,131 Avg Close $375.74 Range $362.04 - $394.39

Q1 2015

Shares 4,800 Value ($000) $2,293 Avg Close $367.39 Range $319.97 - $392.44

Q4 2014

Shares 5,100 Value ($000) $2,058 Avg Close $312.98 Range $277.26 - $338.91

Q3 2014

Shares 5,100 Value ($000) $1,943 Avg Close $320.90 Range $307.35 - $336.58

Q2 2014

Shares 5,200 Value ($000) $2,039 Avg Close $310.95 Range $287.91 - $326.05

Q1 2014

Shares 5,300 Value ($000) $2,071 Avg Close $285.19 Range $248.98 - $321.55

Q4 2013

Shares 5,300 Value ($000) $1,771 Avg Close $252.29 Range $224.72 - $274.67

Q3 2013

Shares 5,300 Value ($000) $1,526 Avg Close $221.88 Range $207.82 - $236.56

Q2 2013

Shares 4,900 Value ($000) $1,287 Avg Close $215.14 Range $203.34 - $223.89

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,837	$1,262	$760.94	$681.51 - $872.48
Q3 2025	1,837	$1,521	$765.22	$638.93 - $848.55
Q2 2025	1,837	$1,269	$613.76	$504.22 - $687.53
Q1 2025	1,837	$1,041	$518.78	$472.01 - $565.18
Q4 2024	1,837	$971	$524.83	$505.33 - $552.01
Q3 2024	1,837	$1,014	$534.11	$491.57 - $581.63
Q2 2024	1,637	$844	$539.68	$481.41 - $618.19
Q1 2024	1,737	$1,102	$579.25	$521.43 - $627.84
Q4 2023	1,637	$894	$484.07	$420.31 - $558.62
Q3 2023	1,637	$745	$432.54	$384.81 - $455.58
Q2 2023	1,637	$658	$371.63	$342.24 - $391.75
Q1 2023	1,737	$634	$328.40	$294.10 - $350.56
Q4 2022	1,737	$540	$289.43	$270.68 - $304.97
Q3 2022	1,737	$523	$280.17	$261.50 - $291.64
Q2 2022	1,737	$523	$299.74	$266.47 - $325.87
Q1 2022	1,737	$563	$302.02	$272.47 - $332.04
Q4 2021	1,768	$606	$315.81	$293.55 - $346.26
Q3 2021	1,768	$599	$298.18	$270.16 - $319.80
Q2 2021	1,868	$601	$316.40	$278.28 - $356.60
Q1 2021	2,668	$1,014	$359.80	$339.62 - $388.94
Q4 2020	2,668	$1,063	$333.55	$297.49 - $367.48
Q3 2020	2,668	$913	$338.72	$302.34 - $384.29
Q2 2020	2,668	$1,068	$365.81	$326.77 - $406.22
Q1 2020	2,100	$804	$372.19	$269.90 - $430.80
Q4 2019	2,200	$1,070	$422.68	$399.06 - $443.47
Q3 2019	2,100	$991	$390.45	$346.89 - $427.60
Q2 2019	2,600	$1,042	$360.19	$334.73 - $381.37
Q1 2019	3,100	$1,344	$366.76	$341.11 - $392.35
Q4 2018	3,200	$1,319	$341.94	$304.59 - $367.37
Q3 2018	3,300	$1,338	$343.80	$316.13 - $356.21
Q2 2018	3,400	$1,375	$334.90	$306.56 - $357.60
Q1 2018	3,300	$1,326	$347.26	$318.29 - $372.85
Q4 2017	3,300	$1,311	$343.86	$321.43 - $368.50
Q3 2017	3,500	$1,490	$368.90	$345.75 - $397.32
Q2 2017	3,800	$1,750	$388.47	$372.47 - $407.14
Q1 2017	3,800	$1,722	$367.25	$348.66 - $383.47
Q4 2016	3,700	$1,568	$344.78	$323.04 - $364.59
Q3 2016	3,700	$1,588	$354.36	$332.64 - $372.62
Q2 2016	4,000	$1,658	$334.36	$320.79 - $345.81
Q1 2016	4,000	$1,585	$303.19	$266.10 - $333.74
Q4 2015	4,000	$1,523	$319.11	$286.21 - $344.62
Q3 2015	4,700	$1,678	$331.86	$287.01 - $377.57
Q2 2015	4,800	$2,131	$375.74	$362.04 - $394.39
Q1 2015	4,800	$2,293	$367.39	$319.97 - $392.44
Q4 2014	5,100	$2,058	$312.98	$277.26 - $338.91
Q3 2014	5,100	$1,943	$320.90	$307.35 - $336.58
Q2 2014	5,200	$2,039	$310.95	$287.91 - $326.05
Q1 2014	5,300	$2,071	$285.19	$248.98 - $321.55
Q4 2013	5,300	$1,771	$252.29	$224.72 - $274.67
Q3 2013	5,300	$1,526	$221.88	$207.82 - $236.56
Q2 2013	4,900	$1,287	$215.14	$203.34 - $223.89