AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q2 2014
Shares 6,900 Value ($000) $480 Avg Close — Range —
Q1 2014
Shares 6,900 Value ($000) $463 Avg Close — Range —
Q4 2013
Shares 6,900 Value ($000) $496 Avg Close — Range —
Q3 2013
Shares 6,900 Value ($000) $416 Avg Close — Range —
Q2 2013
Shares 6,900 Value ($000) $386 Avg Close — Range —
Q1 2013
Shares 6,900 Value ($000) $421 Avg Close — Range —