-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, HA50kF/Wu5kdVc4RfeJf7hjInnj55/aUF3iziY1AYHmRbKcafALKh6m0SgSvVz9k Z1hgC6nHVsfEYTYD1bYt6A== 0000897069-04-000150.txt : 20040116 0000897069-04-000150.hdr.sgml : 20040116 20040116162027 ACCESSION NUMBER: 0000897069-04-000150 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20040116 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BADER ALFRED R CENTRAL INDEX KEY: 0000917628 IRS NUMBER: 398288664 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 777 EAST WISCONSIN AVE CITY: MILWAUKEE STATE: WI ZIP: 53202 BUSINESS PHONE: 4142893604 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: SIGMA ALDRICH CORP CENTRAL INDEX KEY: 0000090185 STANDARD INDUSTRIAL CLASSIFICATION: WHOLESALE-CHEMICALS & ALLIED PRODUCTS [5160] IRS NUMBER: 431050617 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-30762 FILM NUMBER: 04529966 BUSINESS ADDRESS: STREET 1: 3050 SPRUCE ST CITY: ST LOUIS STATE: MO ZIP: 63103 BUSINESS PHONE: 3147715765 MAIL ADDRESS: STREET 1: 3050 SPRUCE STREET CITY: ST LOUIS STATE: MO ZIP: 63103 FORMER COMPANY: FORMER CONFORMED NAME: SIGMA INTERNATIONAL LTD DATE OF NAME CHANGE: 19750925 FORMER COMPANY: FORMER CONFORMED NAME: ALDRICH CHEMICAL CO INC DATE OF NAME CHANGE: 19750908 SC 13G/A 1 cmw394.htm SCHEDULE 13G/A
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. 18)

SIGMA-ALDRICH CORPORATION
(Name of Issuer)

Class A Common Stock
(Title of Class of Securities)

826552 10 1
(CUSIP Number)

December 31, 2003
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

|_| Rule 13d-1(b)

|X| Rule 13d-1(c)

|_| Rule 13d-1(d)

*   The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(Continued on following page(s))
Page 1 of 3 Pages

1  NAME OF REPORTING PERSONS  
  I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)  
          Alfred R. Bader
2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a)  |_|
          N/A (b)  |_|
3  SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION  
          United States  
  5 SOLE VOTING POWER
NUMBER OF                       3,326,760
SHARES 6 SHARED VOTING POWER

BENEFICIALLY		                       -0-

OWNED BY
EACH 7 SOLE DISPOSITIVE POWER

REPORTING		                       3,326,760

PERSON		    
WITH
  8 SHARED DISPOSITIVE POWER


                      -0-
9 AGGREGATE AMOUNT OF BENEFICIALLY OWNED BY EACH REPORTING PERSON  
          3,326,760  
10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)   N/A        |_|
11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
          4.8% *  
12  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
          IN  


* Based on an aggregate of 69,337,761 shares outstanding as of October 31, 2003.

Page 2 of 3 Pages

        This amendment No. 18 to Schedule 13G with regard to Sigma-Aldrich Corporation is being filed on behalf of the undersigned to amend Items 4 and 5 of the originally filed Schedule 13G. Except as expressly stated herein, there have been no material changes in the information set forth in the Schedule 13G.

Item 4. Ownership

  (a) Amount Beneficially Owned:  3,326,760

  (b) Percent of Class:  4.8%

  (c) Number of shares as to which such person has:

  (i) sole power to vote or to direct the vote:  3,326,760

  (ii) shared power to vote or to direct the vote:   -0-

  (iii) sole power to dispose or to direct the disposition of:   3,326,760

  (iv) shared power to dispose or to direct the disposition of:   -0-

Item 5. Ownership of Five Percent or Less of a Class.

  If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following   |X|.

SIGNATURE

        After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

        Dated this 14th day of January, 2004.

/s/ Alfred R. Bader       
Alfred R. Bader









Page 3 of 3 Pages

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