NEWMARKET CORP

Ticker: NEU CUSIP: 651587107 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 5,124 Value ($000) $3,521 Avg Close $760.94 Range $681.51 - $872.48

Q3 2025

Shares 7,494 Value ($000) $6,207 Avg Close $765.22 Range $638.93 - $848.55

Q2 2025

Shares 9,416 Value ($000) $6,504 Avg Close $613.76 Range $504.22 - $687.53

Q1 2025

Shares 6,119 Value ($000) $3,466 Avg Close $518.78 Range $472.01 - $565.18

Q4 2024

Shares 6,047 Value ($000) $3,195 Avg Close $524.83 Range $505.33 - $552.01

Q3 2024

Shares 11,053 Value ($000) $6,100 Avg Close $534.11 Range $491.57 - $581.63

Q2 2024

Shares 8,417 Value ($000) $4,340 Avg Close $539.68 Range $481.41 - $618.19

Q1 2024

Shares 9,324 Value ($000) $5,916 Avg Close $579.25 Range $521.43 - $627.84

Q4 2023

Shares 9,757 Value ($000) $5,326 Avg Close $484.07 Range $420.31 - $558.62

Q3 2023

Shares 10,375 Value ($000) $4,723 Avg Close $432.54 Range $384.81 - $455.58

Q2 2023

Shares 10,113 Value ($000) $4,066 Avg Close $371.63 Range $342.24 - $391.75

Q1 2023

Shares 10,189 Value ($000) $3,717 Avg Close $328.40 Range $294.10 - $350.56

Q4 2022

Shares 4,955 Value ($000) $1,540 Avg Close $289.43 Range $270.68 - $304.97

Q3 2022

Shares 8,421 Value ($000) $2,532 Avg Close $280.17 Range $261.50 - $291.64

Q2 2022

Shares 8,913 Value ($000) $2,744 Avg Close $299.74 Range $266.47 - $325.87

Q1 2022

Shares 6,729 Value ($000) $2,209 Avg Close $302.02 Range $272.47 - $332.04

Q4 2021

Shares 7,458 Value ($000) $2,513 Avg Close $315.81 Range $293.55 - $346.26

Q3 2021

Shares 4,385 Value ($000) $1,426 Avg Close $298.18 Range $270.16 - $319.80

Q2 2021

Shares 5,191 Value ($000) $1,641 Avg Close $316.40 Range $278.28 - $356.60

Q1 2021

Shares 5,741 Value ($000) $2,150 Avg Close $359.80 Range $339.62 - $388.94

Q4 2020

Shares 5,904 Value ($000) $2,307 Avg Close $333.55 Range $297.49 - $367.48

Q3 2020

Shares 9,462 Value ($000) $3,197 Avg Close $338.72 Range $302.34 - $384.29

Q2 2020

Shares 16,635 Value ($000) $6,565 Avg Close $365.81 Range $326.77 - $406.22

Q1 2020

Shares 14,164 Value ($000) $5,420 Avg Close $372.19 Range $269.90 - $430.80

Q4 2019

Shares 14,682 Value ($000) $7,063 Avg Close $422.68 Range $399.06 - $443.47

Q3 2019

Shares 9,317 Value ($000) $4,338 Avg Close $390.45 Range $346.89 - $427.60

Q2 2019

Shares 1,288 Value ($000) $515 Avg Close $360.19 Range $334.73 - $381.37

Q1 2019

Shares 2,189 Value ($000) $947 Avg Close $366.76 Range $341.11 - $392.35

Q4 2018

Shares 2,911 Value ($000) $1,179 Avg Close $341.94 Range $304.59 - $367.37

Q3 2018

Shares 2,909 Value ($000) $1,179 Avg Close $343.80 Range $316.13 - $356.21

Q2 2018

Shares 3,883 Value ($000) $1,570 Avg Close $334.90 Range $306.56 - $357.60

Q1 2018

Shares 3,892 Value ($000) $1,564 Avg Close $347.26 Range $318.29 - $372.85

Q4 2017

Shares 3,775 Value ($000) $1,499 Avg Close $343.86 Range $321.43 - $368.50

Q3 2017

Shares 3,890 Value ($000) $1,656 Avg Close $368.90 Range $345.75 - $397.32

Q2 2017

Shares 3,766 Value ($000) $1,734 Avg Close $388.47 Range $372.47 - $407.14

Q1 2017

Shares 3,499 Value ($000) $1,585 Avg Close $367.25 Range $348.66 - $383.47

Q4 2016

Shares 441 Value ($000) $186 Avg Close $344.78 Range $323.04 - $364.59

Q3 2016

Shares 1,631 Value ($000) $700 Avg Close $354.36 Range $332.64 - $372.62

Q2 2016

Shares 1,276 Value ($000) $529 Avg Close $334.36 Range $320.79 - $345.81

Q1 2016

Shares 1,107 Value ($000) $438 Avg Close $303.19 Range $266.10 - $333.74

Q4 2015

Shares 1,053 Value ($000) $401 Avg Close $319.11 Range $286.21 - $344.62

Q3 2015

Shares 592 Value ($000) $212 Avg Close $331.86 Range $287.01 - $377.57

Q2 2015

Shares 587 Value ($000) $261 Avg Close $375.74 Range $362.04 - $394.39

Q1 2015

Shares 383 Value ($000) $180 Avg Close $367.39 Range $319.97 - $392.44

Q4 2014

Shares 98 Value ($000) $40 Avg Close $312.98 Range $277.26 - $338.91

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,124	$3,521	$760.94	$681.51 - $872.48
Q3 2025	7,494	$6,207	$765.22	$638.93 - $848.55
Q2 2025	9,416	$6,504	$613.76	$504.22 - $687.53
Q1 2025	6,119	$3,466	$518.78	$472.01 - $565.18
Q4 2024	6,047	$3,195	$524.83	$505.33 - $552.01
Q3 2024	11,053	$6,100	$534.11	$491.57 - $581.63
Q2 2024	8,417	$4,340	$539.68	$481.41 - $618.19
Q1 2024	9,324	$5,916	$579.25	$521.43 - $627.84
Q4 2023	9,757	$5,326	$484.07	$420.31 - $558.62
Q3 2023	10,375	$4,723	$432.54	$384.81 - $455.58
Q2 2023	10,113	$4,066	$371.63	$342.24 - $391.75
Q1 2023	10,189	$3,717	$328.40	$294.10 - $350.56
Q4 2022	4,955	$1,540	$289.43	$270.68 - $304.97
Q3 2022	8,421	$2,532	$280.17	$261.50 - $291.64
Q2 2022	8,913	$2,744	$299.74	$266.47 - $325.87
Q1 2022	6,729	$2,209	$302.02	$272.47 - $332.04
Q4 2021	7,458	$2,513	$315.81	$293.55 - $346.26
Q3 2021	4,385	$1,426	$298.18	$270.16 - $319.80
Q2 2021	5,191	$1,641	$316.40	$278.28 - $356.60
Q1 2021	5,741	$2,150	$359.80	$339.62 - $388.94
Q4 2020	5,904	$2,307	$333.55	$297.49 - $367.48
Q3 2020	9,462	$3,197	$338.72	$302.34 - $384.29
Q2 2020	16,635	$6,565	$365.81	$326.77 - $406.22
Q1 2020	14,164	$5,420	$372.19	$269.90 - $430.80
Q4 2019	14,682	$7,063	$422.68	$399.06 - $443.47
Q3 2019	9,317	$4,338	$390.45	$346.89 - $427.60
Q2 2019	1,288	$515	$360.19	$334.73 - $381.37
Q1 2019	2,189	$947	$366.76	$341.11 - $392.35
Q4 2018	2,911	$1,179	$341.94	$304.59 - $367.37
Q3 2018	2,909	$1,179	$343.80	$316.13 - $356.21
Q2 2018	3,883	$1,570	$334.90	$306.56 - $357.60
Q1 2018	3,892	$1,564	$347.26	$318.29 - $372.85
Q4 2017	3,775	$1,499	$343.86	$321.43 - $368.50
Q3 2017	3,890	$1,656	$368.90	$345.75 - $397.32
Q2 2017	3,766	$1,734	$388.47	$372.47 - $407.14
Q1 2017	3,499	$1,585	$367.25	$348.66 - $383.47
Q4 2016	441	$186	$344.78	$323.04 - $364.59
Q3 2016	1,631	$700	$354.36	$332.64 - $372.62
Q2 2016	1,276	$529	$334.36	$320.79 - $345.81
Q1 2016	1,107	$438	$303.19	$266.10 - $333.74
Q4 2015	1,053	$401	$319.11	$286.21 - $344.62
Q3 2015	592	$212	$331.86	$287.01 - $377.57
Q2 2015	587	$261	$375.74	$362.04 - $394.39
Q1 2015	383	$180	$367.39	$319.97 - $392.44
Q4 2014	98	$40	$312.98	$277.26 - $338.91