MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - AMERICAN SCIENCE & ENGR INC ownership

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AMERICAN SCIENCE & ENGR INC's ticker is ASEI and the CUSIP is 029429107. A total of 111 filers reported holding AMERICAN SCIENCE & ENGR INC in Q3 2013. The put-call ratio across all filers is 0.61 and the average weighting 0.1%.

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Quarter-by-quarter ownership
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of AMERICAN SCIENCE & ENGR INC
ValueSharesWeighting
Q3 2013$206,260,000
-56.5%
3,420
-59.6%
0.00%–
Q2 2013$473,760,000–8,460–0.00%–
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Other shareholders

There were no reported owners of AMERICAN SCIENCE & ENGR INC in Q3 2013.

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View complete list of AMERICAN SCIENCE & ENGR INC shareholders