THERMO INSTRUMENT SYSTEMS INC

Tender offer statement by a third party (amendment)

Written communication about a business combination transaction (Rule 425)

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

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

Written communication about a business combination transaction (Rule 425)

Tender offer statement by a third party (amendment)

Written communication about a business combination transaction (Rule 425)

Tender offer statement by a third party (amendment)

Written communication about a business combination transaction (Rule 425)

General form for quarterly reports under Section 13 or 15(d)

5,7

No description available

No description available

No description available

No description available

No description available

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

5,7

Annual report pursuant to Section 13 or 15(d) (amendment)

5,7

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

Tender offer statement by a third party

Written communication about a business combination transaction (Rule 425)

Tender offer statement by a third party (amendment)

No description available

No description available

5,7

Written communication about a business combination transaction (Rule 425)

5,7

Annual report pursuant to Section 13 or 15(d)

Written communication about a business combination transaction (Rule 425)

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

Written communication about a business combination transaction (Rule 425)

5,7

Written communication about a business combination transaction (Rule 425)

No description available

Registration of Securities on Exchange (amendment)

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

General form for quarterly reports under Section 13 or 15(d)

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

General form for quarterly reports under Section 13 or 15(d)

5,7

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

5,7

5,7

5,7

General form for quarterly reports under Section 13 or 15(d)

5

General form for quarterly reports under Section 13 or 15(d)

5,7

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

5,7

Prospectus Supplement for Primary Offering

Registration of Securities on Exchange

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933

2,7

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d) (amendment)

2,7

Registration statement under Securities Act of 1933 (amendment)

Annual report pursuant to Section 13 or 15(d)

5,7

Registration statement under Securities Act of 1933

5,7

General form for quarterly reports under Section 13 or 15(d)

5

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Current report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Current report pursuant to Section 13 or 15(d)

Preliminary Proxy Statement

Registration statement under Securities Act of 1933

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement