MAYVILLE ENGR CO INC

Ticker: MEC CUSIP: 578605107 Class: Common Stock

ACK Asset Management LLC's Holding History (CIK: 0001510940)

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

Q2 2019

Shares 100,000 Value ($000) $1,686 Avg Close $15.40 Range $11.95 - $17.40

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	100,000	$1,686	$15.40	$11.95 - $17.40