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USD ($)

USD ($) / shares
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   &lt;tr&gt;
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       &lt;td width="97%"&gt;&lt;/td&gt;
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       &lt;td&gt;
       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;6.&amp;#160;&amp;#160;&lt;/font&gt;&lt;/b&gt;
   &lt;/td&gt;
       &lt;td&gt;
       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;EQUITY&lt;/font&gt;&lt;/b&gt;
   &lt;/td&gt;
   &lt;/tr&gt;
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"&gt;
       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Common
       Stock and Warrants&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       On December&amp;#160;16, 2005, in accordance with the terms of the
       Investment Agreement between L-1 and L-1 Investment Partners LLC
       dated October&amp;#160;5, 2005, L-1 sold to Aston
       7,619,047&amp;#160;shares of L-1 common stock warrants to purchase
       an aggregate of 1,600,000&amp;#160;shares of L-1 common stock at an
       exercise price of $13.75 per share which expired in December
       2008 for aggregate gross proceeds to L-1 of $100.0&amp;#160;million.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       In connection with the merger with Identix, the Company assumed
       Identix&amp;#8217; obligation under a warrant which was issued in
       exchange for the technology and intellectual property rights
       acquired by Identix. The warrant was issued with contingent
       future vesting rights to purchase up to 378,400&amp;#160;shares of
       common stock at $9.94 per share. The fair value of the warrant
       at the time of vesting will be recorded as additional cost of
       the acquisition of Identix. The warrant vests upon successful
       issuance of certain patents with the U.S.&amp;#160;government
       related to the technology acquired. As of December&amp;#160;31,
       2010, 141,900 warrants were vested of which all have been
       exercised, and 236,500 remain unvested. The warrants expire in
       2014.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       In connection with Identix&amp;#8217; merger with Visionics in 2002,
       the Company also assumed warrants to purchase shares of
       Visionics common stock outstanding immediately prior to the
       consummation of the merger, which were converted into warrants
       to purchase shares of Identix common stock. The remaining
       warrants to purchase 38,789&amp;#160;shares of common stock of the
       Company will expire once it fulfills its registration
       obligations, and have exercise prices between $20.78 and $26.53.
   &lt;/div&gt;
   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"&gt;
       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Prepaid
       Forward Contract&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       In connection with the issuance of the Convertible Notes on
       May&amp;#160;17, 2007, the Company entered into a contract with Bear
       Stearns (subsequently acquired by JP Morgan Chase&amp;#160;&amp;#038;
       Co.) to purchase 3,490,400&amp;#160;shares of the Company&amp;#8217;s
       common stock at a purchase price of $20.00 per share. Under the
       agreement, Bear Stearns is required to deliver the shares to the
       Company in April-May 2012. At closing of the Convertible Notes,
       the Company settled its obligation under the pre-paid forward
       contract to Bear Stearns for cash of $69.8&amp;#160;million. The
       fair value of the obligation (which was equal to the cash paid)
       has been accounted for as a repurchase of common stock and as a
       reduction of equity. Under terms of the contract, any dividend
       payment that Bear Stearns would otherwise be entitled to on the
       common stock during the term of the contract would be paid to
       the Company. Effective January&amp;#160;26, 2011, JP Morgan and the
       Company entered into a termination agreement and JP Morgan
       delivered the 3,490,400&amp;#160;shares to the Company.
   &lt;/div&gt;
   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"&gt;
       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Issuance
       of Equity Securities&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       On August&amp;#160;5, 2008, pursuant to the terms and conditions of
       (i)&amp;#160;the Securities Purchase Agreement, by and between L-1
       and Robert V. LaPenta (the &amp;#8220;LaPenta Agreement&amp;#8221;),
       (ii)&amp;#160;the Securities Purchase Agreement (the &amp;#8220;Iridian
       Agreement&amp;#8221;), by and between L-1 and Iridian Asset
       Management LLC (&amp;#8220;Iridian&amp;#8221;) and (iii)&amp;#160;the LRSR LLC
       Agreement (together with the LaPenta Agreement and Iridian
       Agreement, the &amp;#8220;Investor Agreements&amp;#8221;), L-1 issued an
       aggregate of 8,083,472&amp;#160;shares of L-1 common stock and
       15,107&amp;#160;shares of Series&amp;#160;A Convertible Preferred Stock
       (the &amp;#8220;Series&amp;#160;A Preferred Stock&amp;#8221;) for aggregate
       proceeds to L-1 of $119.0&amp;#160;million, net of related issuance
       costs, which were used to fund a portion of L-1&amp;#8217;s
       acquisition of Old Digimarc. In accordance with its terms, the
       Series&amp;#160;A Preferred Stock was subsequently converted to
       1,310,992&amp;#160;shares of common stock. See Note&amp;#160;4 for
       additional information.
   &lt;/div&gt;
   &lt;/div&gt;
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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 5
 -Paragraph 15

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 -Name Regulation S-X (SX)
 -Number 210
 -Section 04
 -Article 3

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 -Section 08
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 -Publisher SEC
 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 4
 -Section C, E

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 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 12
 -Paragraph 10

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 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph 29, 30, 31
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 -Publisher AICPA
 -Name Accounting Research Bulletin (ARB)
 -Number 43
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 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
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