AMTECH SYS INC

Ticker: ASYS CUSIP: 032332504 Class: COM PAR $0.01N

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

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

Q1 2019

Shares 85,140 Value ($000) $454 Avg Close $4.94 Range $4.35 - $5.45

Q4 2018

Shares 85,140 Value ($000) $386 Avg Close $4.88 Range $4.03 - $5.83

Q2 2018

Shares 64,090 Value ($000) $388 Avg Close $7.80 Range $5.85 - $10.67

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	85,140	$454	$4.94	$4.35 - $5.45
Q4 2018	85,140	$386	$4.88	$4.03 - $5.83
Q2 2018	64,090	$388	$7.80	$5.85 - $10.67