RINGER THOMAS L (0001220909)

Mailing Address C/O CALIFORNIA AMPLLIFIER INC 460 CALLE SAN PABLO CAMARILLO CA 93012 Ownership Reports for Issuers: (Click on issuer name to see other owners for the issuer, or CIK for issuer filings.) Issuer Filings Transaction Date Type of Owner DOCUMENT SCIENCES CORP 0001016831 2005-05-11 director MAXWELL TECHNOLOGIES INC 0000319815 2004-04-26 director CALIFORNIA AMPLIFIER INC Current Name:CalAmp Corp. 0000730255 2003-07-18 director

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The information presented below contains only portions of the information presented in the referenced filing or filings.
You should consult the original filing for complete information. Hyperlinks to the forms are provided for your convenience.

Acquistion or Disposition	Transaction Date	Deemed Execution Date	Issuer	Form	Transaction Type	Direct or Indirect Ownership	Number of Securities Transacted	Number of Securities Owned	Line Number	Issuer CIK	Security Name
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	30000.0000	0.0000	10	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	30000.0000	0.0000	9	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	30000.0000	0.0000	8	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	30000.0000	0.0000	7	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	30000.0000	0.0000	6	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	100000.0000	0.0000	5	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	15000.0000	0.0000	4	0001016831	Non-qualified stock option
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	7000.0000	0.0000	3	0001016831	Common stock
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--I	46820.0000	0.0000	1	0001016831	Common stock
D	2008-03-06	2008-03-06	DOCUMENT SCIENCES CORP	4	D-Return	--D	18000.0000	0.0000	2	0001016831	Common stock
A	2008-01-11	2008-01-11	DOCUMENT SCIENCES CORP	4	M-Exempt	--D	15000.0000	64820.0000	1	0001016831	Common Stock
D	2008-01-11	2008-01-11	DOCUMENT SCIENCES CORP	4	M-Exempt	--D	15000.0000	0.0000	2	0001016831	Option for Common Stock
A	2007-01-11		MAXWELL TECHNOLOGIES INC	4	A-Award	--D	4000.0000	15667.0000	1	0000319815	Common Stock
A	2006-07-27		CalAmp Corp.	4	A-Award	--D	4000.0000	4000.0000	2	0000730255	Stock Option
A	2006-07-27		CalAmp Corp.	4	A-Award	--D	4000.0000	7000.0000	1	0000730255	Common Stock
A	2006-07-20		DOCUMENT SCIENCES CORP	4	A-Award	--D	10000.0000	326820.0000	1	0001016831	Restricted Stock
A	2006-07-17		MAXWELL TECHNOLOGIES INC	4	M-Exempt	--D	5000.0000	11667.0000	1	0000319815	Common Stock
D	2006-07-17		MAXWELL TECHNOLOGIES INC	4	M-Exempt	--D	5000.0000	5000.0000	2	0000319815	Stock Option (Right to buy)
A	2006-01-25		MAXWELL TECHNOLOGIES INC	4	A-Award	--D	1667.0000	6667.0000	1	0000319815	Common Stock
A	2005-08-03		CalAmp Corp.	4	A-Award	--D	8000.0000	8000.0000	1	0000730255	Stock Option
A	2005-06-22		MAXWELL TECHNOLOGIES INC	4	A-Award	--D	5000.0000	5000.0000	1	0000319815	Common Stock
A	2005-05-11		DOCUMENT SCIENCES CORP	4	A-Award	--D	30000.0000	0.0000	1	0001016831	Non-Qualified Stock Option
A	2004-08-27		CalAmp Corp.	4	A-Award	--D	8000.0000	8000.0000	1	0000730255	Stock Option
A	2004-05-07		MAXWELL TECHNOLOGIES INC	4	A-Award	--D	10000.0000	10000.0000	1	0000319815	Stock Options
A	2004-04-30		DOCUMENT SCIENCES CORP	4	A-Award	--D	30000.0000	0.0000	1	0001016831	Non-Qualified Stock Option
A	2003-07-18		CALIFORNIA AMPLIFIER INC	4	A-Award	--D	8000.0000	8000.0000	1	0000730255	Stock Option
-	-		MAXWELL TECHNOLOGIES INC	3	-	---			1	-	-

http://www.sec.gov/cgi-bin/own-disp

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