AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q2 2016
Shares 8,621 Value ($000) $322 Avg Close — Range —
Q1 2016
Shares 454 Value ($000) $13 Avg Close — Range —
Q4 2015
Shares 454 Value ($000) $19 Avg Close — Range —
Q3 2015
Shares 454 Value ($000) $16 Avg Close — Range —
Q2 2015
Shares 454 Value ($000) $20 Avg Close — Range —
Q1 2015
Shares 454 Value ($000) $22 Avg Close — Range —
Q4 2014
Shares 454 Value ($000) $23 Avg Close — Range —
Q3 2014
Shares 454 Value ($000) $25 Avg Close — Range —
Q2 2014
Shares 454 Value ($000) $31 Avg Close — Range —
Q1 2014
Shares 454 Value ($000) $30 Avg Close — Range —
Q4 2013
Shares 454 Value ($000) $33 Avg Close — Range —