AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

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

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

Q2 2016
Shares 1,550 Value ($000) $58 Avg Close — Range —
Q1 2016
Shares 1,520 Value ($000) $42 Avg Close — Range —
Q4 2015
Shares 1,440 Value ($000) $60 Avg Close — Range —
Q3 2015
Shares 1,380 Value ($000) $49 Avg Close — Range —
Q2 2015
Shares 1,420 Value ($000) $62 Avg Close — Range —
Q1 2015
Shares 1,400 Value ($000) $68 Avg Close — Range —
Q4 2014
Shares 2,000 Value ($000) $104 Avg Close — Range —
Q3 2014
Shares 2,000 Value ($000) $111 Avg Close — Range —
Q2 2014
Shares 1,900 Value ($000) $132 Avg Close — Range —
Q1 2014
Shares 1,900 Value ($000) $128 Avg Close — Range —