WORLD HEART CORP

Q: Mar 31 2012

FY: Dec 31 2011

FY: Dec 31 2011

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: Mar 31 2008

Completion of Acquisition or Disposition of Assets

1.01

5.02

1.01,9.01

1.01,9.01

Other Events

2.05,5.02

3.01

3.01

7.01,9.01

2.05,5.02,8.01,9.01

5.07

5.02

8.01,9.01

8.01,9.01

8.01,9.01

3.02,9.01

1.01,3.02,8.01,9.01

8.01,9.01

8.01,9.01

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

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Post-effective amendment to a registration statement

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 a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

No description available

No description available

No description available

Ayer Capital Management, LP

New Leaf Ventures II, L.P.

MARXE AUSTIN W & GREENHOUSE DAVID M

Camber Capital Management LLC

Hove Anders D

NIEDEL JAMES; HUNT RONALD; Lathi Vijay K; Chambon Philippe O.; AKKARAJU SRINIVAS; New Leaf Ventures II, L.P.; New Leaf Venture Management II, L.L.C.; New Leaf Venture Associates II, L.P.

Delagardelle Jeani

VENROCK ASSOCIATES V LP; VENROCK PARTNERS V L P; VEF Management V, LLC; Venrock Entrepreneurs Fund V, L.P.; Venrock Management V, LLC; Venrock Partners Management V, LLC

HeartWare International, Inc.

BROWN MORGAN R

MARXE AUSTIN W

Estes Michael Sumner

Jones Eugene B

Garriock William C

Delagardelle Jeani

Jassawalla Jal S

Martin John Alexander

Martin John Alexander

BROWN MORGAN R

Hove Anders D

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

06

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

FILED AS OF DATE: 20071226

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC