AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q2 2015
Shares 241 Value ($000) $11 Avg Close — Range —
Q3 2014
Shares 743 Value ($000) $41 Avg Close — Range —
Q1 2014
Shares 237 Value ($000) $16 Avg Close — Range —
Q4 2013
Shares 238 Value ($000) $17 Avg Close — Range —
Q3 2013
Shares 377 Value ($000) $23 Avg Close — Range —
Q2 2013
Shares 776 Value ($000) $43 Avg Close — Range —