UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report: ~~April~~May 2026, 2005

Commission file number: 0-16946

LabOne, Inc.

10101 Renner Blvd.

Lenexa, Kansas 66219

(913) 888-1770

Incorporated in Missouri

I.R.S. Employer Identification Number: 43-1039532

Item 1.01 Entry into a Material Definitive Agreement

OnThe ~~April~~Annual ~~20,~~Meeting ~~2005,~~of shareholders of LabOne, Inc. ~~and~~was ~~American~~held on May 26, 2005. At the Annual Meeting, the Company's shareholders approved an amendment to the Company's 2001 Long-Term Incentive Plan ("2001 Plan"). The 2001 Plan has three primary components: the Bonus Replacement Stock ~~Transfer~~Option Program; the Stock Incentive Program; and ~~Trust~~the ~~Company~~Stock ~~amended~~Program for Outside Directors. The amendment (i) increased the ~~parties~~number of shares of Common Stock that may be issued under the 2001 Plan's ~~February~~Stock 11Incentive Program with respect to restricted stock, ~~2000~~restricted ~~Rights~~stock ~~Agreement~~unit awards, asperformance ~~previously~~share ~~amended~~awards onand ~~August~~other 31stock-based awards payable in Common Stock from 150,000 ~~2001~~to ~~("Rights~~500,000, ~~Agreement"~~and (ii) transferred 800,000 shares of Common Stock from the 2001 Plan's Bonus Replacement Stock Option Program to the 2001 Plan's Stock Incentive Program.

The ~~Rights~~foregoing ~~Agreement~~description ~~grants~~is ~~Company~~qualified ~~shareholders~~in ~~the~~its ~~right~~entirety toby ~~purchase~~reference ~~Company~~to ~~common stock for one-half of~~ the ~~stock's~~amended ~~market~~2001 ~~price~~Plan, if a ~~person~~copy ~~becomes the beneficial owner~~ of ~~fifteen~~which ~~percent~~is ~~(15%)~~filed oras ~~more~~Exhibit ~~of the Company's outstanding common stock ("Acquiring Person"), subject to the terms and conditions of the Rights Agreement~~10. ~~Prior~~1 to this ~~amendment,~~Current ~~the~~Report ~~Rights~~on ~~Agreement~~Form ~~exempted~~8-K ~~parties affiliated with Welsh, Carson, Anderson & Stowe~~ and ~~family~~is ~~members~~incorporated ofby W.reference Therein. ~~Grant from the definition of "Acquiring Person," even if such parties acquired fifteen percent (15%) or more of the Company's common stock.~~

~~This~~Item ~~amendment removes the exemptions pertaining to Welsh, Carson, Anderson & Stowe and the family members of W~~7.~~T. Grant from the Rights Agreement's definition of "Acquiring Person."~~01 ~~Thus,~~Regulation ~~subject~~FD to the terms and conditions of the Rights Agreement, such parties' acquisition of fifteen percent (15%) or more of the Company's common stock would trigger the rights specified in the Rights Agreement on the same basis as other non-exempt acquirers.Disclosure

~~This~~PowerPoint ~~summary~~slide ispresentation ~~qualified~~materials infrom ~~its~~the ~~entirety~~May by26, ~~the~~2005 ~~text~~Annual Meeting of ~~the~~shareholders ~~amendment~~of toLabOne, ~~the~~Inc. ~~Rights~~are ~~Agreement,~~available ~~which~~on isLabOne's ~~attached~~Investor ~~hereto~~Relations aswebsite ~~Exhibit 4~~(http://www.1labone.com) and will be available on the website for the next 30 days.

Item 9.01 Financial Statements and Exhibits

410.1 ~~Amendment~~LabOne, NoInc. 22001 toLong ~~the~~Term ~~Rights~~Incentive ~~Agreement~~Plan

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

LabOne, Inc.

Date: ~~April~~May 2531, 2005 By /s/ John W. McCartyJohn W. McCarty Executive V.P. and Chief Financial Officer

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