HMT TECHNOLOGY CORP

Q: Jun 30 2000

FY: Mar 31 2000

FY: Mar 31 2000

Q: Dec 31 1999

Q: Sep 30 1999

Q: Jun 30 1999

FY: Mar 31 1999

Q: Dec 31 1998

Q: Sep 30 1998

Q: Sep 30 1998

Q: Jun 30 1998

FY: Mar 31 1998

Q: Dec 31 1997

Q: Sep 30 1997

FY: Mar 31 1997

Q: Jun 30 1997

Q: Jun 30 1997

FY: Mar 31 1997

Q: Dec 31 1996

Q: Nov 14 1996

5,7

9

5,7

Written communication about a business combination transaction (Rule 425)

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

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Definitive Proxy Statement

Definitive Proxy Statement

No description available

Definitive Proxy Statement

Definitive Proxy Statement

SUMMIT VENTURES III LP

THOMSON HORSTMANN & BRYANT INC

STATE OF WISCONSIN INVESTMENT BOARD

TUDOR INVESTMENT CORP ET AL

KOMAG INC /DE/

KOMAG INC /DE/

HMT TECHNOLOGY CORP

HMT TECHNOLOGY CORP

KOMAG INC /DE/

HMT TECHNOLOGY CORP

HMT TECHNOLOGY CORP

KOMAG INC /DE/

SUMMIT VENTURES III LP

VGH PARTNERS L L C

FMR CORP

DIMENSIONAL FUND ADVISORS INC

CRABBE HUSON GROUP INC /MA

STATE OF WISCONSIN INVESTMENT BOARD

THOMSON HORSTMANN & BRYANT INC

STATE OF WISCONSIN INVESTMENT BOARD