RITA MEDICAL SYSTEMS INC

Q: Sep 30 2006

Q: Jun 30 2006

Q: Mar 31 2006

FY: Dec 31 2005

Q: Sep 30 2005

Q: Jun 30 2005

Q: Mar 31 2005

FY: Dec 31 2004

FY: Dec 31 2004

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

FY: Dec 31 2003

FY: Dec 31 2003

Q: Sep 30 2003

Q: Jun 30 2003

Q: Mar 31 2003

FY: Dec 31 2002

Q: Sep 30 2002

8.01

8.01

Entry into a Material Definitive Agreement

1.01,9.01

Entry into a Material Definitive Agreement

1.01,9.01

2.02,9.01

Entry into a Material Definitive Agreement

2.02,9.01

7.01,9.01

2.02,9.01

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

2.02,9.01

1.01,2.03,9.01

2.02,9.01

1.01,5.02,8.01,9.01

2.02,9.01

5.02,8.01,9.01

Entry into a Material Definitive Agreement

Notification of removal from listing and/or registration on a national securities exchange

Certification of termination of registration of a class of securities (Section 12(g))

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

No description available

Written communication about a business combination transaction (Rule 425)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Post-effective amendment to a registration statement

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Post-effective amendment to a registration statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

KOPP INVESTMENT ADVISORS LLC

MMCAP International Inc. SPC

TOCQUEVILLE ASSET MANAGEMENT LP

Visium Balanced Fund LP

DIMENSIONAL FUND ADVISORS INC

BALYASNY ASSET MANAGEMENT LLC

ROTH MICHAEL

DIMENSIONAL FUND ADVISORS INC

GLAZER CAPITAL, LLC

KOPP INVESTMENT ADVISORS LLC

BRENCOURT ADVISORS LLC

JOHNSON WESLEY

LaPorte Steve

BUCCI VINCENT

COMVEST VENTURE PARTNERS LP

COMVEST VENTURE PARTNERS LP

COMVEST VENTURE PARTNERS LP

MMCAP International Inc. SPC

JOHNSON WESLEY

BUCCI VINCENT

06

06

06

FILED AS OF DATE: 20030203