TEKELEC

Q: Sep 30 2011

Q: Jun 30 2011

Q: Mar 31 2011

FY: Dec 31 2010

Q: Sep 30 2010

Q: Jun 30 2010

Q: Mar 31 2010

FY: Dec 31 2009

Q: Sep 30 2009

Q: Jun 30 2009

Q: Mar 31 2009

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

Q: Sep 30 2007

Q: Jun 30 2007

Q: Mar 31 2007

FY: Dec 31 2006

1.02,2.01,3.01,3.03,5.01,5.02,8.01,9.01

5.07

8.01,9.01

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

2.02,9.01

1.01,9.01

Results of Operations and Financial Condition

5.02,9.01

Submission of Matters to a Vote of Security Holders

Cost Associated with Exit or Disposal Activities

2.02,9.01

5.02,5.03,9.01

5.02

5.02

5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

1.01,2.03,9.01

Results of Operations and Financial Condition

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

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

Additional Information for Proxy Statement/ Votes

No description available

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Brookside Capital Trading Fund, L.P.

Brookside Capital Trading Fund, L.P.

BlackRock Inc.

Katelia Capital Investments Ltd.

KUPINSKY STUART

KENSICO CAPITAL MANAGEMENT CORP

Coleman Thomas Jason;Lowenstein Michael Bernard;KENSICO CAPITAL MANAGEMENT CORP;Kensico Associates LP;Kensico Partners, L.P.;Kensico Capital, LLC;Kensico Offshore Fund, Ltd.;Kensico Offshore Fund II Master Ltd.

BUCKLY RONALD W

Colaluca Anthony Jr

Courtois Jean-Yves

de Pesquidoux Hubert

Mills Carol

RESSNER MICHAEL P

De Lange Ronald J

Rush Gregory S

Reed Houck S

Rice David K

Suriano Douglas A

Katelia Capital Investments Ltd.

Reed Houck S

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

No description available

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Letter from the SEC

Annual Report Scanned (Paper)

Correspondence with the SEC

Correspondence with the SEC

Annual Report Scanned (Paper)