ICOS CORP

Quarterly Report for period ending 2006-09-30

Quarterly Report for period ending 2006-06-30

Quarterly Report for period ending 2006-03-31

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

Annual Report for period ending 2004-12-31

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)

Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities

Notice of exempt solicitation

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

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

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

Form for registration of a class of securities pursuant to Section 12(g)

Form for registration of a class of securities pursuant to Section 12(g)

Annual report to security holders

Annual report to security holders

ORBIMED ADVISORS LLC: Major Shareholders

SECTORAL ASSET MANAGEMENT INC: Major Shareholders

GAMCO INVESTORS, INC. ET AL: Major Shareholders

PANGIA ROBERT W: Statement of changes in beneficial ownership of securities

Yetman Michele K: Statement of changes in beneficial ownership of securities

WILCOX GARY: Statement of changes in beneficial ownership of securities

STEIN MICHAEL A: Statement of changes in beneficial ownership of securities

ST JOHN THOMAS P: Statement of changes in beneficial ownership of securities

SCHULER JACK W: Statement of changes in beneficial ownership of securities

MILLIGAN DAVID V: 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

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Prospectus filed pursuant to Rule 424(b)(3)

Prospectus filed pursuant to Rule 424(b)(3)

Prospectus filed pursuant to Rule 424(b)(3)

Prospectus filed pursuant to Rule 424(b)(3)

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 revised proxy soliciting materials

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