VENTRITEX INC

Q: Mar 31 1997

FY: Jun 30 1996

Q: Feb 14 1997

FY: Jun 30 1996

Q: Sep 30 1996

FY: Sep 11 1996

FY: Aug 15 1996

1,7

5,7

5,7

5,7

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

Post-effective amendment to a registration statement

Prospectus Supplement with Pricing Information

Registration statement under Securities Act of 1933 (amendment)

No description available

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Definitive Proxy Statement

Preliminary Proxy Statement

ARDSLEY ADVISORY PARTNERS

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

ARDSLEY ADVISORY PARTNERS

AMERICAN CENTURY COMPANIES INC

ST JUDE MEDICAL INC

LOOMIS SAYLES & CO LP /MA/ /ADV

LOOMIS SAYLES & CO LP /MA/ /ADV

LOOMIS SAYLES & CO LP /MA/ /ADV

TWENTIETH CENTURY COMPANIES INC