MAYVILLE ENGR CO INC

Ticker: MEC CUSIP: 578605107 Class: Common Stock

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q1 2020

Shares 2,112 Value ($000) $13 Avg Close $7.51 Range $3.89 - $9.60

Q4 2019

Shares 4,888 Value ($000) $46 Avg Close $10.38 Range $7.70 - $14.21

Q3 2019

Shares 500 Value ($000) $7 Avg Close $13.36 Range $11.16 - $15.94

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	2,112	$13	$7.51	$3.89 - $9.60
Q4 2019	4,888	$46	$10.38	$7.70 - $14.21
Q3 2019	500	$7	$13.36	$11.16 - $15.94