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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">SECURITIES AND EXCHANGE COMMISSION</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">WASHINGTON, D.C. 20549</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">CURRENT REPORT</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">PURSUANT TO SECTION&#160;13 OR 15(D)&#160;OF THE</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">SECURITIES EXCHANGE ACT OF 1934</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">Date of report (Date of earliest event reported):&#160;</font><font style="DISPLAY: inline; FONT-WEIGHT: bold; BACKGROUND-COLOR: #ffffff">&#160; September 16, 2011</font><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">&#160;</font><a name="FIS_UNIDENTIFIED_TABLE"><!--EFPlaceholder--></a></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">ADVANCED CELL TECHNOLOGY, INC.</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">(Exact name of registrant as specified in its charter)</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">33 LOCKE DRIVE, MARLBOROUGH, MASSACHUSETTS 01752</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">Check the appropriate box below if the Form&#160;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff" face="Wingdings">o</font><font style="DISPLAY: inline; FONT-WEIGHT: bold; BACKGROUND-COLOR: #ffffff">&#160;</font><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">&#160;&#160;&#160;Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff" face="Wingdings">o</font><font style="DISPLAY: inline; FONT-WEIGHT: bold; BACKGROUND-COLOR: #ffffff">&#160;</font><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">&#160;&#160;&#160;Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff" face="Wingdings">o</font><font style="DISPLAY: inline; FONT-WEIGHT: bold; BACKGROUND-COLOR: #ffffff">&#160;</font><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">&#160;&#160;&#160;Pre-commencement communications pursuant to Rule&#160;14d-2(b)&#160;under the Exchange Act (17 CFR 240.14d-2(b)</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On or about September 16, 2011, Alpha Capital Anstalt, a Liechtenstein corporation with its principal place of business in Vaduz, Liechtenstein (&#8220;plaintiff&#8221;), filed an action against Advanced Cell Technology, Inc. (the &#8220;Company&#8221;) in the United States District Court for the Southern District of New York, Case No. 11 CIV 6458.&#160;&#160;Plaintiff alleges that it is or was a holder of various convertible notes and warrants issued by the Company, and that by reason of certain transactions between the Company and JMJ Financial, Inc. during 2010, the exercise and conversion prices in plaintiff&#8217;s convertible notes and warrants should have been reset.&#160;&#160;Plaintiff demands a preliminary and permanent injunction directing that the Company deliver to it at least 39,514,859 shares of its common stock, as well as monetary damages in an amount to be determined at trial.&#160;&#160;The Company intends to defend against this action vigorously.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; BACKGROUND-COLOR: #ffffff">SIGNATURES</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">ADVANCED CELL TECHNOLOGY, INC.</font></div>
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Unassociated Document
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):
September 16, 2011
ADVANCED CELL TECHNOLOGY, INC.
(Exact name of registrant as specified in its charter)
Delaware
000-50295
87-0656515
(State or other jurisdiction
of incorporation)
(Commission File Number)
(IRS Employer Identification Number)
33 LOCKE DRIVE, MARLBOROUGH, MASSACHUSETTS 01752
(Address of principal executive offices, including zip code)
(508) 756-1212
(Registrant's telephone number, including area code)
(Former name or former address, if changed since last report)
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:
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Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
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Item 8.01  Other Events
On or about September 16, 2011, Alpha Capital Anstalt, a Liechtenstein corporation with its principal place of business in Vaduz, Liechtenstein ("plaintiff"), filed an action against Advanced Cell Technology, Inc. (the "Company") in the United States District Court for the Southern District of New York, Case No. 11 CIV 6458.  Plaintiff alleges that it is or was a holder of various convertible notes and warrants issued by the Company, and that by reason of certain transactions between the Company and JMJ Financial, Inc. during 2010, the exercise and conversion prices in plaintiff's convertible notes and warrants should have been reset.  Plaintiff demands a preliminary and permanent injunction directing that the Company deliver to it at least 39,514,859 shares of its common stock, as well as monetary damages in an amount to be determined at trial.  The Company intends to defend against this action vigorously.
Although not currently named as plaintiffs in this or other actions against the Company, in the event all other holders of convertible notes and warrants issued by the Company similarly situated to plaintiff were to file substantially similar actions based upon substantially similar claims and allegations, the Company estimates that the number of shares of common stock such holders of convertible notes could demand would be approximately 8 million, and the number of additional warrants convertible into shares of common stock such holders of warrants could demand would be approximately 380 million.  The total number of shares of common stock of the Company currently outstanding is in excess of 1.62 billion.
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, hereunto duly authorized.
ADVANCED CELL TECHNOLOGY, INC.
Dated: September 21, 2011
By:
/s/ Gary H. Rabin
Gary H. Rabin
Chief Executive Officer