AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q2 2016
Shares 6,899 Value ($000) $258 Avg Close — Range —
Q1 2016
Shares 6,899 Value ($000) $191 Avg Close — Range —
Q4 2015
Shares 6,899 Value ($000) $285 Avg Close — Range —
Q3 2015
Shares 7,004 Value ($000) $249 Avg Close — Range —
Q2 2015
Shares 7,004 Value ($000) $307 Avg Close — Range —
Q1 2015
Shares 7,132 Value ($000) $348 Avg Close — Range —
Q4 2014
Shares 7,132 Value ($000) $370 Avg Close — Range —
Q3 2014
Shares 7,132 Value ($000) $395 Avg Close — Range —
Q2 2014
Shares 7,132 Value ($000) $496 Avg Close — Range —
Q1 2014
Shares 7,132 Value ($000) $479 Avg Close — Range —
Q4 2013
Shares 8,832 Value ($000) $635 Avg Close — Range —
Q3 2013
Shares 9,132 Value ($000) $551 Avg Close — Range —
Q2 2013
Shares 9,632 Value ($000) $539 Avg Close — Range —