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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
26537	Argon St Inc.	STST	Measuring & Controlling Devices, Nec (3829)	381873250

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1305031	M Delores Etter	12701 Fair Lakes Circle Fairfax VA 22033		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2010-07-20	100	$34.48	4,000	No	4	S	Indirect	By Spouse
Common Stock	Disposition	2010-08-05	4,000	$34.50	0	No	4	U	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	By Spouse
No	4	U	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Disposition	2010-08-05	4,000	$34.50	4,000	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	D	Direct

Footnotes

Each restricted stock unit represents a contingent right to receive one (1) share of Argon ST, Inc. common stock.
These restricted stock units were cancelled in the tender offer that expired on August 4, 2010 in exchange for a cash payment of $138,000 ($34.50 per share) pursuant to the Merger Agreement between the issuer and The Boeing Company.
These restricted stock units vested automatically upon consummation of the tender offer on August 4, 2010.