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    <nameOfIssuer>ACCELERATE DIAGNOSTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00430H102</cusip>
    <value>980</value>
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  <infoTable>
    <nameOfIssuer>ALASKA AIR GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>011659109</cusip>
    <value>6089</value>
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  <infoTable>
    <nameOfIssuer>ALLERGAN PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G0177J108</cusip>
    <value>10849</value>
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      <None>0</None>
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    <nameOfIssuer>AMBAC FINL GROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>023139884</cusip>
    <value>24668</value>
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    <nameOfIssuer>AMERICAN AIRLS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02376R102</cusip>
    <value>6098</value>
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      <Sole>0</Sole>
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    <nameOfIssuer>AMIRA NATURE FOODS LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G0335L102</cusip>
    <value>244</value>
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    <nameOfIssuer>ASSURED GUARANTY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G0585R106</cusip>
    <value>13502</value>
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      <Sole>0</Sole>
      <Shared>303900</Shared>
      <None>0</None>
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    <nameOfIssuer>AXT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00246W103</cusip>
    <value>3178</value>
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      <Sole>0</Sole>
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    <nameOfIssuer>BMC STK HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05591B109</cusip>
    <value>31469</value>
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    <nameOfIssuer>BUILDERS FIRSTSOURCE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>12008R107</cusip>
    <value>45027</value>
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      <sshPrnamt>3375311</sshPrnamt>
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    <nameOfIssuer>CLOUDERA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>18914U100</cusip>
    <value>24796</value>
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    <nameOfIssuer>CVR PARTNERS LP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126633106</cusip>
    <value>35133</value>
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    <nameOfIssuer>DSP GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23332B106</cusip>
    <value>30572</value>
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    <nameOfIssuer>ENERGOUS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29272C103</cusip>
    <value>2555</value>
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    <nameOfIssuer>EVERSPIN TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30041T104</cusip>
    <value>9632</value>
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    <nameOfIssuer>FACEBOOK INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>30303M102</cusip>
    <value>23420</value>
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    <nameOfIssuer>FLOOR &amp; DECOR HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>339750101</cusip>
    <value>12700</value>
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    <nameOfIssuer>GOLDMAN SACHS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38141G104</cusip>
    <value>13468</value>
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    <nameOfIssuer>GRUBHUB INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>400110102</cusip>
    <value>10421</value>
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    <nameOfIssuer>HARMONIC INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>413160102</cusip>
    <value>31632</value>
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    <nameOfIssuer>HIMAX TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>43289P106</cusip>
    <value>3612</value>
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    <nameOfIssuer>IMMERSION CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>452521107</cusip>
    <value>40290</value>
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    <nameOfIssuer>INSYS THERAPEUTICS INC NEW</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>45824V209</cusip>
    <value>1367</value>
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    <nameOfIssuer>INTERMOLECULAR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45882D109</cusip>
    <value>16941</value>
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    <nameOfIssuer>JELD-WEN HLDG INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>47580P103</cusip>
    <value>11025</value>
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    <nameOfIssuer>LANTHEUS HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>516544103</cusip>
    <value>7075</value>
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    <nameOfIssuer>MANNKIND CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>56400P706</cusip>
    <value>5823</value>
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    <nameOfIssuer>MITEK SYS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>606710200</cusip>
    <value>4267</value>
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    <nameOfIssuer>MONTAGE RES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>61179L100</cusip>
    <value>14481</value>
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    <nameOfIssuer>NAM TAI PPTY INC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G63907102</cusip>
    <value>3371</value>
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    <nameOfIssuer>ORBCOMM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68555P100</cusip>
    <value>6778</value>
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    <nameOfIssuer>PARK ELECTROCHEMICAL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>700416209</cusip>
    <value>27802</value>
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    <nameOfIssuer>POLARITYTE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>731094108</cusip>
    <value>900</value>
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    <nameOfIssuer>POPULAR INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>733174700</cusip>
    <value>35448</value>
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    <nameOfIssuer>QUALCOMM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>747525103</cusip>
    <value>20246</value>
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    <nameOfIssuer>RADCOM LTD</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>M81865111</cusip>
    <value>5915</value>
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    <nameOfIssuer>RUBICON PROJ INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78112V102</cusip>
    <value>1048</value>
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