AMERICAN SCIENCE & ENGR INC

CUSIP: 029429107 Class: COM

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q2 2014
Shares 3,600 Value ($000) $251 Avg Close — Range —
Q1 2014
Shares 3,600 Value ($000) $242 Avg Close — Range —