SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Tsay Yuh-Geng

(Last) (First) (Middle)
81 WYMAN STREET
P.O. BOX 9046

(Street)
WALTHAM MA 02454-9046

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
05/15/2008
3. Issuer Name and Ticker or Trading Symbol
THERMO FISHER SCIENTIFIC INC. [ TMO ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Senior Vice President
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 91,551 D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) (1) 01/28/2013 Common Stock 33,600 $14.884 D
Stock Option (Right to Buy) (1) 01/28/2012 Common Stock 33,600 $22.411 D
Stock Option (Right to Buy) (1) 03/07/2015 Common Stock 56,000 $30.675 D
Stock Option (Right to Buy) (1) 07/25/2015 Common Stock 54,200 $32.3 D
Stock Option (Right to Buy) (2) 11/09/2013 Common Stock 90,800 $43.37 D
Explanation of Responses:
1. Immediately
2. The option is exercisable in five equal annual installments. The first installment became exercisable on November 9, 2007, and the next four installments become exercisable on November 9, 2008, 2009, 2010 and 2011.
Remarks:
Exhibit List Exhibit 24 - Confirming Statement
Barbara J. Lucas, Attorney-in-Fact for Yuh-Geng Tsay 05/19/2008
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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