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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001238925-07-000002.txt : 20070524
<SEC-HEADER>0001238925-07-000002.hdr.sgml : 20070524
<ACCEPTANCE-DATETIME>20070524181947
ACCESSION NUMBER:		0001238925-07-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070524
FILED AS OF DATE:		20070524
DATE AS OF CHANGE:		20070524

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PADILLA NADINE E
		CENTRAL INDEX KEY:			0001238925

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21873
		FILM NUMBER:		07878088

	BUSINESS ADDRESS:	
		STREET 1:		C/O BIOSITE INC
		STREET 2:		11030 ROSELLE STREET
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		8584554808

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOSITE INC
		CENTRAL INDEX KEY:			0000834306
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				330288606
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11030 ROSELLE ST
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		6194554808

	MAIL ADDRESS:	
		STREET 1:		11030 ROSELLE ST
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOSITE DIAGNOSTICS INC
		DATE OF NAME CHANGE:	19960710
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3751</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2147</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>47.66</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-05-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4957</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>91.7498</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2003-06-18</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-06-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4957</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12042</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option vests daily over a four-year period commencing on the date of grant, except that no options are exercisable for the first six months after the date of grant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Robyn Shutak  For: Nadine Padilla</signatureName>
        <signatureDate>2007-05-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----