SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
WICKS FRANK
(Last) (First) (Middle)
C/O SIGMA-ALDRICH CORPORATION
3050 SPRUCE STREET
(Street)
ST LOUIS MO 63103
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
SIGMA ALDRICH CORP [ SIAL ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
EVP & Pres., Applied
3. Date of Earliest Transaction (Month/Day/Year)
11/18/2015
4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock(1) 11/18/2015 A 2,835 A $0(2) 16,037 D
Common Stock(1) 11/18/2015 D 2,835 D $140(2) 13,202 D
Common Stock(1) 11/18/2015 A 2,430 A $0(2) 15,632 D
Common Stock(1) 11/18/2015 D 2,430 D $140(2) 13,202 D
Common Stock(1) 11/18/2015 D 13,202 D $140 0 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
NQ Stock Option Right to Buy $41.62 11/18/2015 D 17,600 02/16/2008 02/16/2017 Common Stock 17,600 $41.62(3) 0 D
NQ Stock Option Right to Buy $52.76 11/18/2015 D 16,550 02/15/2009 02/15/2008 Common Stock 16,550 $52.76(3) 0 D
NQ Stock Option Right to Buy $37.56 11/18/2015 D 15,673 02/17/2010 02/17/2019 Common Stock 15,673 $37.56(3) 0 D
NQ Stock Option Right to Buy $48.61 11/18/2015 D 21,943 02/16/2011 02/16/2020 Common Stock 21,943 $48.61(3) 0 D
NQ Stock Option, Right to Buy $62.49 11/18/2015 D 20,680 02/14/2012 02/14/2021 Common Stock 20,680 $62.49(3) 0 D
NQ Stock Option, Right to Buy $70.32 11/18/2015 D 20,078 02/14/2013 02/14/2022 Common Stock 20,078 $70.32(3) 0 D
NQ Stock Option Right to Buy $76.34 11/18/2015 D 21,666 02/11/2014 02/11/2023 Common Stock 21,666 $76.34(3) 0 D
ISO Stock Option Right To Buy $76.34 11/18/2015 D 1,309 02/11/2014 02/11/2023 Common Stock 1,309 $76.34(3) 0 D
ISO Stock Option Right To Buy $93.07 11/18/2015 D 1,074 02/10/2015 02/10/2024 Common Stock 1,074 $93.07(3) 0 D
NQ Stock Option Right to Buy $93.07 11/18/2015 D 14,701 02/10/2015 02/10/2024 Common Stock 14,701 $93.07(3) 0 D
Restricted Stock Unit $0.0(1) 11/18/2015 D 2,835 02/11/2016 02/11/2016 Common Stock 2,835 $0(4) 0 D
Restricted Stock Unit $0.0(1) 11/18/2015 D 2,430 02/10/2017 02/10/2017 Common Stock 2,430 $0(4) 0 D
Explanation of Responses:
1. Please see attached Exhibit A. Capitalized terms used herein and not otherwise defined shall have the meanings assigned to them in the attached Exhibit A.
2. These performance-based restricted stock units, which provided for vesting three years of the date of the grant, subject to certain performance criteria were cancelled at the Effective Time (whether vested or unvested) in exchange for a cash payment equal to the Per-Share Merger Consideration.
3. These stock options, which provided for vesting in three equal annual installments beginning on the first anniversary of the date of the grant, were cancelled at the Effective Time (whether vested or unvested) in exchange for a cash payment equal to the Per-Share Merger Consideration, less the exercise price of the option.
4. These service-based restricted stock units, which provided for vesting 100% after three years of the date of the grant, were cancelled at the Effective Time in exchange for a cash payment equal to the Per-Share Merger Consideration.
Remarks:
/s/ Jesica Betts, by Power of Attorney 11/19/2015
** 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 4 (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).
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