CHIRON CORP

Annual Report for period ending 2005-12-31

Quarterly Report for period ending 2005-09-30

Quarterly Report for period ending 2005-06-30

Quarterly Report for period ending 2005-03-31

Quarterly Report for period ending 2004-06-30

Quarterly Report for period ending 2004-09-30

Annual Report for period ending 2004-12-31

Quarterly Report for period ending 2004-09-30

Quarterly Report for period ending 2004-09-30

Quarterly Report for period ending 2004-06-30

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Notice of termination of registration of a class of securities under Section 12(g)

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

Post-effective amendment to a registration statement that is not immediately effective upon filing

Annual report to security holders

Annual report to security holders

Post-effective amendment to a registration statement that is not immediately effective upon filing

Annual report to security holders

Schedule filed to report going private transactions

WALSER BRYAN L: Statement of changes in beneficial ownership of securities

RAPPUOLI RINO: Statement of changes in beneficial ownership of securities

Walther Gene: Statement of changes in beneficial ownership of securities

SOLAND DANIEL B: Statement of changes in beneficial ownership of securities

White David: Statement of changes in beneficial ownership of securities

OLEARY DENISE M: Statement of changes in beneficial ownership of securities

PIEN HOWARD H: Statement of changes in beneficial ownership of securities

BRYSON VAUGHN D: Statement of changes in beneficial ownership of securities

PENHOET EDWARD: Statement of changes in beneficial ownership of securities

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Definitive revised proxy soliciting materials

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials filed by non-management including Rule 14(a)(12) material

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive proxy statement relating to a merger, acquisition, or disposition

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.