-----BEGIN PRIVACY-ENHANCED MESSAGE-----
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,
 TIatqQn4BOIHy6aTrH9wC4ZZSjVjbZGEBQr/I80VZqmZZPB3gLQ9xCk8hwVSbCcx
 rTE9ete+4XztTGrFLZND1w==

<SEC-DOCUMENT>0001104659-05-021503.txt : 20050509
<SEC-HEADER>0001104659-05-021503.hdr.sgml : 20050509
<ACCEPTANCE-DATETIME>20050509114220
ACCESSION NUMBER:		0001104659-05-021503
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050505
FILED AS OF DATE:		20050509
DATE AS OF CHANGE:		20050509

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISONICS CORP
		CENTRAL INDEX KEY:			0001023966
		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
		IRS NUMBER:				770338561
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0430

	BUSINESS ADDRESS:	
		STREET 1:		5906 MCINTYRE STREET
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80403
		BUSINESS PHONE:		3032797900

	MAIL ADDRESS:	
		STREET 1:		5906 MCINTYRE STREET
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80403

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALEXANDER JAMES E
		CENTRAL INDEX KEY:			0001111913

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12531
		FILM NUMBER:		05810337

	BUSINESS ADDRESS:	
		STREET 1:		ISONICS CORP
		STREET 2:		5906 MCINTYRE STREET
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80408
		BUSINESS PHONE:		3032797900

	MAIL ADDRESS:	
		STREET 1:		ISONICS CORP
		STREET 2:		5906 MCINYTRE STREET
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80403
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001023966</issuerCik>
        <issuerName>ISONICS CORP</issuerName>
        <issuerTradingSymbol>ISON</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001111913</rptOwnerCik>
            <rptOwnerName>ALEXANDER JAMES E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ISONICS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>5906 MCINTYRE STREET</rptOwnerStreet2>
            <rptOwnerCity>GOLDEN</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>135455</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>500000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F8"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1185712</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
                <footnoteId id="F4"/>
                <footnoteId id="F5"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.17</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2001-11-13</value>
            </exerciseDate>
            <expirationDate>
                <value>2006-11-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
                <footnoteId id="F4"/>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.25</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2002-03-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2007-03-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrant</value>
                <footnoteId id="F4"/>
                <footnoteId id="F7"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.25</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2002-03-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2007-03-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
                <footnoteId id="F4"/>
                <footnoteId id="F9"/>
                <footnoteId id="F10"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.64</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-02-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-02-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
                <footnoteId id="F4"/>
                <footnoteId id="F11"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.04</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-05-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>40000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-05-05</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-04-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>40000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares held by the James and Carol Alexander Foundation, Inc.</footnote>
        <footnote id="F2">Shares held by spouse.</footnote>
        <footnote id="F3">The reporting person disclaims beneficial ownership of all securities held by his spouse and children and this report should not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F4">This transaction is exempt by reason of Rule 16b-3(d).</footnote>
        <footnote id="F5">20,000 shares vest on November 13, 2001, and 20,000 shares vest on November 13th of each of the years 2002, 2003, 2004, and 2005.</footnote>
        <footnote id="F6">Options granted by resolution of the Compensation Committee of the Board of Directors as consideration for salary deferral.  The grant of the options is subject to acceptance by the reporting person by no later than April 30, 2002, which acceptance was received.</footnote>
        <footnote id="F7">Warrants to purchase 100,000 shares of common stock vest on March 28, 2002.  The grant of the warrants is subject to acceptance by the reporting person by no later than Apil 30, 2002, which acceptance was received.</footnote>
        <footnote id="F8">This transaction is not a &quot;sale&quot; of securities since it is a gift by the reporting person and is therefore exempt pursuant to Rule 16b-5.  There was no value received for the shares.</footnote>
        <footnote id="F9">Options granted by resolution of the Compensation Committee of the Board of Directors pursuant to the 1996 Executives' Equity Incentive Plan.  The grant of the options is subject to acceptance by the reporting person, which acceptance was received on February 22, 2005.</footnote>
        <footnote id="F10">Such incentive stock options vest at a rate of 20,000 shares immediately on the date of the grant (February 22, 2005) and 20,000 shares on each anniversary of the grant date in each of years 2006, 2007, 2008 and 2009.</footnote>
        <footnote id="F11">Non-qualified options granted by resolution of the Compensation Committee of the Board of Directors pursuant to the 2005 Stock Option Plan.  The grant of the options is subject to acceptance by the reporting person, which acceptance was received on May 5, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ James E. Alexander</signatureName>
        <signatureDate>2005-05-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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