AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q2 2016
Shares 24,407 Value ($000) $913 Avg Close — Range —
Q1 2016
Shares 54,695 Value ($000) $1,515 Avg Close — Range —
Q4 2015
Shares 16,231 Value ($000) $672 Avg Close — Range —
Q2 2015
Shares 8,554 Value ($000) $375 Avg Close — Range —
Q1 2015
Shares 12,415 Value ($000) $607 Avg Close — Range —
Q4 2014
Shares 10,484 Value ($000) $544 Avg Close — Range —
Q3 2014
Shares 11,745 Value ($000) $650 Avg Close — Range —
Q2 2014
Shares 4,151 Value ($000) $289 Avg Close — Range —
Q1 2014
Shares 10,519 Value ($000) $707 Avg Close — Range —
Q4 2013
Shares 17,518 Value ($000) $1,259 Avg Close — Range —
Q3 2013
Shares 17,071 Value ($000) $1,030 Avg Close — Range —
Q2 2013
Shares 4,007 Value ($000) $224 Avg Close — Range —