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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d) of the</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of report (Date of earliest event
reported): June 8, 2012 (June 5, 2012)</B></P>

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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>GENSPERA, INC.</B></P>

<!-- Field: Rule-Page --><DIV ALIGN="LEFT" STYLE="margin-top: 3pt; margin-bottom: 3pt"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid; width: 100%">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact name of registrant as specified
in Charter)</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
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    <TD STYLE="width: 32%; vertical-align: top; font-weight: bold; text-align: center; border-bottom: Black 1pt solid; padding: 0; text-indent: 0">Delaware</TD>
    <TD STYLE="width: 2%; vertical-align: bottom; font-weight: bold; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="width: 32%; vertical-align: top; font-weight: bold; text-align: center; border-bottom: Black 1pt solid; padding: 0; text-indent: 0">0001421204</TD>
    <TD STYLE="width: 2%; vertical-align: bottom; tab-stops: center 3.0in right 6.0in; font-weight: bold; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="width: 32%; vertical-align: top; font-weight: bold; text-align: center; border-bottom: Black 1pt solid; padding: 0; text-indent: 0">20-0438951</TD></TR>
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    <TD STYLE="vertical-align: top; padding: 0; text-indent: 0">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(State or other jurisdiction of</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>incorporation or organization)</B></P></TD>
    <TD STYLE="vertical-align: bottom; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; padding: 0; text-indent: 0">(Commission File No.)</TD>
    <TD STYLE="vertical-align: bottom; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; padding: 0; text-indent: 0">(IRS Employee Identification No.)</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; padding: 0; text-indent: 0">&nbsp;</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>2511 N Loop 1604 W, Suite 204</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>San Antonio, TX 78258</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(Address of Principal
Executive Offices) </B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>210-479-8112</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(Issuer Telephone
number) </B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Written communications pursuant to Rule 425 under the Securities
Act (17 CFR 230.425)</TD>
</TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Soliciting material pursuant to Rule 14a-12 under the Exchange
Act (17 CFR 240.14a-12)</TD>
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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 14d-2(b)
under the Exchange Act (17 CFR 240.14d-2(b))</TD>
</TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 13e-4(c)
under the Exchange Act (17 CFR 240.13e-4(c))</TD>
</TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 5.07&#9;Submission of Matters to a Vote of Security
Holders</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On June 5, 2012, GenSpera, Inc. (&ldquo;Company&rdquo;)
received the written consents from stockholders holding 12,164,649 shares of common stock (or 55.73% of the 21,828,723 shares entitled
to vote), to conditionally permit (but not require) the Company to amend its Certificate of Incorporation, as amended, to (i) effect
a reverse stock split of the Company&rsquo;s common stock by a ratio of not more than one-for-three, with the exact ratio to be
set by the Company&rsquo;s Board of Directors, in its sole discretion (&ldquo;Reverse Stock Split&rdquo;), and (ii) to increase
the number of authorized shares of the Company&rsquo;s capital stock to 180,000,000 shares, of which 150,000,000 shares will be
designated common stock and 30,000,000 shares will be designated as blank check preferred stock (&ldquo;Authorized Stock Increase&rdquo;).
As a condition to effecting the Reverse Stock Split and Authorized Stock Increase the Company must complete a registered offering
of its securities along with the simultaneous listing of the Company&rsquo;s common stock on the NASDAQ Capital Market. Notwithstanding
the forgoing, there can be no assurance that the Company will complete a registered offering or that Company&rsquo;s common stock
will become listed on the NASDAQ Capital Market.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 23.1pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Notwithstanding receipt of stockholder
approval of the Reverse Stock Split and the Authorized Stock Increase, and the satisfaction of the conditions as stated above,
the Board of Directors reserves the right, without further action by the stockholders, to elect not to proceed with the Reverse
Stock Split and/or the Authorized Stock Increase if, at any time prior to the filing of a Certificate of Amendment for the Reverse
Stock Split and/or Authorized Stock Increase, the Board of Directors, in its sole discretion, determines that it is no longer in
the Company&rsquo;s best interest and the best interests of the Company&rsquo;s stockholders to proceed with the Reverse Stock
Split and/or Authorized Stock Increase.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 23.1pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the requirements of the Securities
Exchange Act of 1934, the Issuer has duly caused this Report on Form 8-K to be signed on its behalf by the undersigned hereunto
duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 12.2pt; text-indent: -12.25pt">Dated: June 8, 2012</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TR STYLE="vertical-align: top">
    <TD COLSPAN="3">GenSpera, Inc.</TD></TR>
<TR>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 40%">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-left: 12.2pt; text-indent: -12.2pt">By:</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">/s/ Craig Dionne&nbsp;</P></TD></TR>
<TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Craig Dionne</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Chief Executive Officer</P></TD></TR>
</TABLE><BR STYLE="clear: both">
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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{"company-data": {"conformed-name": "GENSPERA INC", "cik": "0001421204", "assigned-sic": "2834", "irs-number": "000000000", "state-of-incorporation": "DE"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-153829", "film-number": "12896248"}, "business-address": {"street1": "2511 N LOOP 1604 W", "street2": "SUITE 204", "city": "SAN ANTONIO", "state": "TX", "zip": "78258", "phone": "(210) 479-8112"}, "mail-address": {"street1": "2511 N LOOP 1604 W", "street2": "SUITE 204", "city": "SAN ANTONIO", "state": "TX", "zip": "78258"}}
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 (Date of earliest event
reported): June 8, 2012 (June 5, 2012)
GENSPERA, INC.
(Exact name of registrant as specified
in Charter)
Delaware
0001421204
20-0438951
(State or other jurisdiction of
incorporation or organization)
(Commission File No.)
(IRS Employee Identification No.)
2511 N Loop 1604 W, Suite 204
San Antonio, TX 78258
(Address of Principal
Executive Offices)
210-479-8112
(Issuer Telephone
number)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):
¨
Written communications pursuant to Rule 425 under the Securities
Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange
Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 14d-2(b)
under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c)
under the Exchange Act (17 CFR 240.13e-4(c))
Item 5.07	Submission of Matters to a Vote of Security
Holders
On June 5, 2012, GenSpera, Inc. ("Company")
received the written consents from stockholders holding 12,164,649 shares of common stock (or 55.73% of the 21,828,723 shares entitled
to vote), to conditionally permit (but not require) the Company to amend its Certificate of Incorporation, as amended, to (i) effect
a reverse stock split of the Company's common stock by a ratio of not more than one-for-three, with the exact ratio to be
set by the Company's Board of Directors, in its sole discretion ("Reverse Stock Split"), and (ii) to increase
the number of authorized shares of the Company's capital stock to 180,000,000 shares, of which 150,000,000 shares will be
designated common stock and 30,000,000 shares will be designated as blank check preferred stock ("Authorized Stock Increase").
As a condition to effecting the Reverse Stock Split and Authorized Stock Increase the Company must complete a registered offering
of its securities along with the simultaneous listing of the Company's common stock on the NASDAQ Capital Market. Notwithstanding
the forgoing, there can be no assurance that the Company will complete a registered offering or that Company's common stock
will become listed on the NASDAQ Capital Market.
Notwithstanding receipt of stockholder
approval of the Reverse Stock Split and the Authorized Stock Increase, and the satisfaction of the conditions as stated above,
the Board of Directors reserves the right, without further action by the stockholders, to elect not to proceed with the Reverse
Stock Split and/or the Authorized Stock Increase if, at any time prior to the filing of a Certificate of Amendment for the Reverse
Stock Split and/or Authorized Stock Increase, the Board of Directors, in its sole discretion, determines that it is no longer in
the Company's best interest and the best interests of the Company's stockholders to proceed with the Reverse Stock
Split and/or Authorized Stock Increase.
SIGNATURES
Pursuant to the requirements of the Securities
Exchange Act of 1934, the Issuer has duly caused this Report on Form 8-K to be signed on its behalf by the undersigned hereunto
duly authorized.
Dated: June 8, 2012
GenSpera, Inc.
By:
/s/ Craig Dionne
Craig Dionne
Chief Executive Officer