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Filing Details

Accession Number:: 0000005768-10-000036
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-11-16 16:34:22
Reporting Period:: 2010-11-12

Filing Date:: 2010-11-16
Accepted Time:: 2010-11-16 16:34:22
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
5768	American Science & Engineering Inc.	ASEI	X-Ray Apparatus & Tubes & Related Irradiation Apparatus (3844)	042240991

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1353373	Kenneth Breur	American Science And Engineering, Inc. 829 Middlesex Turnpike Billerica MA 01821	Svp	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-11-12	560	$52.82	10,766	No	4	M	Direct
Common Stock	Acquisiton	2010-11-12	935	$61.45	11,701	No	4	M	Direct
Common Stock	Acquisiton	2010-11-12	151	$60.66	11,852	No	4	M	Direct
Common Stock	Acquisiton	2010-11-12	469	$51.56	12,321	No	4	M	Direct
Common Stock	Disposition	2010-11-12	2,115	$82.52	10,206	No	4	S	Direct
Common Stock	Disposition	2010-11-15	2,800	$83.00	7,406	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Options (Right to buy)	Disposition	2010-11-12	560	$0.00	560	$52.82
Common Stock	Stock Options (Right to buy)	Disposition	2010-11-12	935	$0.00	935	$61.45
Common Stock	Stock Options (Right to buy)	Disposition	2010-11-12	151	$0.00	151	$60.66
Common Stock	Stock Options (Right to buy)	Disposition	2010-11-12	469	$0.00	469	$51.56

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2016-06-20	No	4	M	Direct
0	2017-08-15	No	4	M	Direct
0	2017-09-14	No	4	M	Direct
235	2018-06-12	No	4	M	Direct

Footnotes

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from a low of $82.50 to a high of $82.58 for an average of $82.5213. The reporting person undertakes to provide to American Science and Engineering, Inc., any security holder of American Science and Engineering, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.
On June 20, 2006, the reporting person was granted an option to purchase 560 shares of common stock. The option vests in 3 equal increments based on AS&E's satisfaction of certain performance criteria for each of the fiscal years ending March 31, 2007, 2008, and 2009. The performance criteria were met, resulting in vesting of the option as to 560 shares.
On August 15, 2007, the reporting person was granted an option to purchase 935 shares of common stock. The option vests in 3 equal increments based on AS&E's satisfaction of certain performance criteria for each of the fiscal years ending March 31, 2008, 2009 and 2010. The performance criteria were met, resulting in vesting of the option as to 935 shares.
On September 14, 2007, the reporting person was granted an option to purchase 151 shares of common stock. The option vests in 3 equal increments based on AS&E's satisfaction of certain performance criteria for each of the fiscal years ending March 31, 2008, 2009 and 2010. The performance criteria were met, resulting in vesting of the option as to 151shares.
On June 12, 2008, the reporting person was granted an option to purchase 704 shares of common stock. The option vests in 3 equal increments based on AS&E's satisfaction of certain performance criteria for each of the fiscal years ending March 31, 2009, 2010 and 2011. The performance criteria were met for 2009 and 2010, resulting in vesting of the option as to 469 shares.