UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 LabOne Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 50540L 105 (CUSIP Number) *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 the disclosures provided in a prior cover page. The information required in 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). Page 1 of 5 pages CUSIP No. 50540L 105 13G Page 2 of 5 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON St. Denis J. Villere & Company I.R.S. Identification No. 72-0343760 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Louisiana -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 2,700 ------------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 701,800 ------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING 2,700 PERSON ------------------------------------------------ 8 SHARED DISPOSITIVE POWER WITH 701,800 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 704,500 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* N/A -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.24% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IA -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 2 of 5 pages SCHEDULE 13G ITEM 1. This Schedule 13G relates to shares of the common stock (the "Shares") of Labone Inc., (the "Issuer"), whose principal executive offices are located at 10101 Renner Blvd., Lenexa, KS 66219. ITEM 2. (a)-(c) The person filing this Schedule 13G is St. Denis J. Villere & Company, a Louisiana partnership in commendam (the "Partnership"), with its principal business office located at 210 Baronne Street, Suite 808, New Orleans, Louisiana 70112-1727. (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 50540L 105 ITEM 3. The Partnership is filing this Schedule 13G as an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. ITEM 4. Ownership. (a)-(c) As of December 31, 2002, the Partnership was deemed to have or share voting or dispositive power over, and therefore to own beneficially, the number and percentage of Shares of the Issuer indicated below: Number Percentage of Sole Shared Sole Shared of Outstanding Voting Voting Dispositive Dispositive Shares Shares Power Power Power Power ------ ------------ ----- ----- ----------- ----------- 704,500 6.24% 2,700 701,800 2,700 701,800 Page 3 of 5 pages ITEM 5. Ownership of Five Percent or Less of a Class. ITEM 6. Ownership of More than Five Percent on Behalf of Another Person. ITEM 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company. Not Applicable ITEM 8. Identification and Classification of Members of the Group. Not Applicable ITEM 9. Notice of Dissolution of Group. Not Applicable ITEM 10. Certification. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. Page 4 of 5 pages 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. Date: February 11, 2003 ST. DENIS J. VILLERE & COMPANY, A LOUISIANA PARTNERSHIP IN COMMENDAM By: /s/ GEORGE G. VILLERE ---------------------------- George G. Villere General Partner Page 5 of 5 pages