PERSEPTIVE BIOSYSTEMS INC

FY: Sep 30 1997

FY: Sep 30 1997

Q: Aug 12 1997

Q: Mar 29 1997

Q: Feb 12 1997

FY: Sep 30 1996

Q: Aug 14 1996

Q: May 15 1996

5,7

5,7

5,7

Current report pursuant to Section 13 or 15(d)

Current report pursuant to Section 13 or 15(d)

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

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

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

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

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

ROCKEFELLER & CO INC /ADV

WELLINGTON MANAGEMENT CO LLP

ZESIGER CAPITAL GROUP LLC

ARMEN GARO H

PERSEPTIVE BIOSYSTEMS INC

PERSEPTIVE BIOSYSTEMS INC

ARMEN GARO H

PERSEPTIVE BIOSYSTEMS INC

PERSEPTIVE BIOSYSTEMS INC

FIRSTAR INVESTMENT RESEARCH & MANAGEMENT CO /WI/

ROCKEFELLER & CO INC /ADV

ZESIGER CAPITAL GROUP LLC /ADV

MORGAN J P & CO INC

FIRSTAR INVESTMENT RESEARCH & MANAGEMENT CO /WI/

FIRSTAR CORP /WI/

FMR CORP

MORGAN J P & CO INC