MAYVILLE ENGR CO INC

Ticker: MEC CUSIP: 578605107 Class: Common Stock

Russell Investments Group, Ltd.'s Holding History (CIK: 0001692234)

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

Q4 2025

Shares 189,981 Value ($000) $3,556 Avg Close $16.31 Range $12.25 - $19.77

Q3 2025

Shares 192,394 Value ($000) $2,647 Avg Close $15.04 Range $12.10 - $17.62

Q2 2025

Shares 216,179 Value ($000) $3,450 Avg Close $14.29 Range $11.72 - $16.72

Q1 2025

Shares 200,312 Value ($000) $2,690 Avg Close $15.04 Range $12.75 - $16.54

Q4 2024

Shares 215,783 Value ($000) $3,392 Avg Close $18.28 Range $15.33 - $23.02

Q3 2024

Shares 188,729 Value ($000) $3,978 Avg Close $18.72 Range $15.90 - $22.07

Q2 2024

Shares 176,845 Value ($000) $2,946 Avg Close $15.12 Range $13.15 - $17.00

Q1 2024

Shares 153,710 Value ($000) $2,203 Avg Close $13.05 Range $11.07 - $14.82

Q4 2023

Shares 92,814 Value ($000) $1,338 Avg Close $12.41 Range $9.72 - $14.89

Q3 2023

Shares 60,017 Value ($000) $658 Avg Close $11.55 Range $9.86 - $13.28

Q2 2023

Shares 83,482 Value ($000) $1,040 Avg Close $12.64 Range $9.55 - $15.50

Q1 2023

Shares 53,668 Value ($000) $801 Avg Close $14.57 Range $12.25 - $16.66

Q4 2022

Shares 14,247 Value ($000) $180 Avg Close $9.97 Range $5.95 - $14.37

Q3 2022

Shares 14,247 Value ($000) $92 Avg Close $7.19 Range $6.36 - $8.46

Q2 2022

Shares 14,247 Value ($000) $110 Avg Close $8.48 Range $7.01 - $9.52

Q1 2022

Shares 14,247 Value ($000) $133 Avg Close $11.35 Range $9.13 - $15.33

Q4 2021

Shares 21,747 Value ($000) $323 Avg Close $16.48 Range $13.15 - $19.90

Q3 2021

Shares 26,547 Value ($000) $498 Avg Close $17.13 Range $13.49 - $20.93

Q2 2021

Shares 23,247 Value ($000) $466 Avg Close $17.65 Range $13.75 - $22.16

Q1 2021

Shares 14,247 Value ($000) $204 Avg Close $14.74 Range $12.14 - $17.74

Q4 2020

Shares 14,247 Value ($000) $191 Avg Close $11.06 Range $8.62 - $14.74

Q3 2020

Shares 23,624 Value ($000) $217 Avg Close $8.45 Range $6.90 - $10.23

Q2 2020

Shares 23,624 Value ($000) $186 Avg Close $6.13 Range $4.49 - $8.43

Q2 2019

Shares 2,015 Value ($000) $28 Avg Close $15.40 Range $11.95 - $17.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	189,981	$3,556	$16.31	$12.25 - $19.77
Q3 2025	192,394	$2,647	$15.04	$12.10 - $17.62
Q2 2025	216,179	$3,450	$14.29	$11.72 - $16.72
Q1 2025	200,312	$2,690	$15.04	$12.75 - $16.54
Q4 2024	215,783	$3,392	$18.28	$15.33 - $23.02
Q3 2024	188,729	$3,978	$18.72	$15.90 - $22.07
Q2 2024	176,845	$2,946	$15.12	$13.15 - $17.00
Q1 2024	153,710	$2,203	$13.05	$11.07 - $14.82
Q4 2023	92,814	$1,338	$12.41	$9.72 - $14.89
Q3 2023	60,017	$658	$11.55	$9.86 - $13.28
Q2 2023	83,482	$1,040	$12.64	$9.55 - $15.50
Q1 2023	53,668	$801	$14.57	$12.25 - $16.66
Q4 2022	14,247	$180	$9.97	$5.95 - $14.37
Q3 2022	14,247	$92	$7.19	$6.36 - $8.46
Q2 2022	14,247	$110	$8.48	$7.01 - $9.52
Q1 2022	14,247	$133	$11.35	$9.13 - $15.33
Q4 2021	21,747	$323	$16.48	$13.15 - $19.90
Q3 2021	26,547	$498	$17.13	$13.49 - $20.93
Q2 2021	23,247	$466	$17.65	$13.75 - $22.16
Q1 2021	14,247	$204	$14.74	$12.14 - $17.74
Q4 2020	14,247	$191	$11.06	$8.62 - $14.74
Q3 2020	23,624	$217	$8.45	$6.90 - $10.23
Q2 2020	23,624	$186	$6.13	$4.49 - $8.43
Q2 2019	2,015	$28	$15.40	$11.95 - $17.40