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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 LH8YIesuBaT6uejPjpXBXelC9rxJ0AG+qziMH9B9CsLlfQaWO4x0wC9Td4DJzWkr
 32RXSST2UntTqtq9kwa21Q==

<SEC-DOCUMENT>0000904454-03-000119.txt : 20030519
<SEC-HEADER>0000904454-03-000119.hdr.sgml : 20030519
<ACCEPTANCE-DATETIME>20030516184640
ACCESSION NUMBER:		0000904454-03-000119
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030514
FILED AS OF DATE:		20030519

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LABONE INC/
		CENTRAL INDEX KEY:			0000830158
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				431039532
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10101 RENNER BLVD
		STREET 2:		P. O. BOX 7568
		CITY:			LENEXA
		STATE:			KS
		ZIP:			66219
		BUSINESS PHONE:		9138881770

	MAIL ADDRESS:	
		STREET 1:		10101 RENNER BLVD
		STREET 2:		X
		CITY:			LENEXA
		STATE:			KS
		ZIP:			66219

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LAB HOLDINGS INC
		DATE OF NAME CHANGE:	19980406

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEAFIELD CAPITAL CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEAFIELD CAPTIAL CORP
		DATE OF NAME CHANGE:	19910520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RATHER JONATHAN M
		CENTRAL INDEX KEY:			0001212994

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-92137
		FILM NUMBER:		03709454

	BUSINESS ADDRESS:	
		STREET 1:		320 PARK AVENUE STE 2500
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2128939500

	MAIL ADDRESS:	
		STREET 1:		320 PARK AVENUE STE 2500
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

<documentType>4</documentType><periodOfReport>2003-05-14</periodOfReport>
<issuer><issuerCik>0000830158</issuerCik>
        <issuerName>LABONE INC/</issuerName>
<issuerTradingSymbol>LABS</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001212994</rptOwnerCik>
            <rptOwnerName>RATHER JONATHAN M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
<reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-14</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>X</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>196000</value></transactionShares><transactionValue><value>1961.02</value><footnoteId id="F1"/></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>196000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Welsh, Carson, Anderson &amp;amp; Stowe IX, L.P
.</value><footnoteId id="F2"/></natureOfOwnership></ownershipNature></nonDerivativeSecurity><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-14</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>15600</value></transactionShares><transactionValue><value>348348</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>180400</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Welsh, Carson, Anderson &amp;amp; Stowe IX, L.P.</value><footnoteId id="F2"/></natureOfOwnership></ownershipNature></nonDerivativeSecu
rity><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>8600</value></transactionShares><transactionValue><value>187652</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>171800</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Welsh, Carson, Anderson &amp;amp; Stowe IX, L.P.</value><footnoteId id="F2"/></natureOfOwnership></ownershipNature></nonDerivativeSecurity><derivativeSecurity><securityTitle><value>Warrants to Purchase Common Stock</value>
</securityTitle><conversionOrExercisePrice><value>.01</value></conversionOrExercisePrice><transactionDate><value>2003-05-14</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>X</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>196102</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2001-08-31</value></exerciseDate><expirationDate><value>2008-08-31</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>196102</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>143699</value><footnoteId id="F3"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNat
ure><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Welsh, Carson, Anderson &amp;amp; Stowe IX, L.P.</value><footnoteId id="F2"/></natureOfOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">Pursuant to the net exercise provisions of the Warrants, rather than paying cash for the exercise price of the Warrants, Welsh, Carson, Anderson &amp;amp; Stowe IX, L.P. (&amp;quot;WCAS IX&amp;quot;) used shares of Common Stock that would have otherwise been issuable under the Warrants as payment for the exercise price.  Therefore, the price paid for th eshares actually acquired by WCAS IX also includes the exercise price paid for the shares retained by the issuer as payment for the exercise price.  The value of the shares of Common Stock used in accordance with the net exercise provision of the Warrants was $19.31 per share.</footnote><footnote id="F2">The Reporting Person is one of several managing members of the sole general partner of Welsh
, CArson, Anderson &amp;amp; Stowe IX, L.P.  Pursuant to Instruction (4)(b)(iv) of Form 4, the Reporting Person has elected to report as indirectly beneficially owned the entire number of securities beneficially owned by such limited partnership.  The Reporting Person disclaims beneficial owenrship of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein, and/or that are not actually distributed to him or her.</footnote><footnote id="F3">The Reporting Person also beneficially holds Warrants to Purchase 209 shares of Common Stock, held in an IRA account for the benefit of the Reporting Person.</footnote></footnotes><ownerSignature><signatureName>Jonathan M. Rather</signatureName><signatureDate>2003-05-15</signatureDate></ownerSignature></ownershipDocument>

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</SEC-DOCUMENT>
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