HEART TECHNOLOGY INC /DE

Related Filers (3)

Ownership (4)

Tuesday, 2/4/1997

VANGUARD/PRIMECAP FUND INC: Major Shareholders

Friday, 2/9/1996

TWENTIETH CENTURY COMPANIES INC: Major Shareholders

Monday, 2/5/1996

MANNING & NAPIER ADVISORS INC: Major Shareholders

Friday, 2/2/1996

VANGUARD/PRIMECAP FUND INC: Major Shareholders