AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q2 2015
Shares 124,221 Value ($000) $5,442 Avg Close — Range —
Q1 2015
Shares 237,711 Value ($000) $11,615 Avg Close — Range —
Q4 2014
Shares 434,443 Value ($000) $22,548 Avg Close — Range —
Q3 2014
Shares 505,143 Value ($000) $27,975 Avg Close — Range —
Q2 2014
Shares 431,542 Value ($000) $30,031 Avg Close — Range —
Q1 2014
Shares 406,651 Value ($000) $27,315 Avg Close — Range —
Q4 2013
Shares 372,548 Value ($000) $26,790 Avg Close — Range —
Q3 2013
Shares 542,558 Value ($000) $32,722 Avg Close — Range —
Q2 2013
Shares 537,249 Value ($000) $30,086 Avg Close — Range —