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    <nameOfIssuer>ACADIA HEALTHCARE COMPANY IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00404A109</cusip>
    <value>1765945</value>
    <shrsOrPrnAmt>
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    <votingAuthority>
      <Sole>75500</Sole>
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      <None>0</None>
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    <nameOfIssuer>ACLARIS THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00461U105</cusip>
    <value>16772438</value>
    <shrsOrPrnAmt>
      <sshPrnamt>4472650</sshPrnamt>
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      <Sole>4472650</Sole>
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      <None>0</None>
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    <nameOfIssuer>AGILON HEALTH INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>00857U206</cusip>
    <value>2056600</value>
    <shrsOrPrnAmt>
      <sshPrnamt>260000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>260000</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>AGIOS PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00847X104</cusip>
    <value>27035684</value>
    <shrsOrPrnAmt>
      <sshPrnamt>799163</sshPrnamt>
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      <Sole>799163</Sole>
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      <None>0</None>
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    <nameOfIssuer>ALKERMES PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G01767105</cusip>
    <value>6505745</value>
    <shrsOrPrnAmt>
      <sshPrnamt>183986</sshPrnamt>
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      <Sole>183986</Sole>
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      <None>0</None>
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    <nameOfIssuer>ALNYLAM PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02043Q107</cusip>
    <value>24484380</value>
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      <sshPrnamt>74000</sshPrnamt>
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    <votingAuthority>
      <Sole>74000</Sole>
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      <None>0</None>
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    <nameOfIssuer>ALPHATEC HLDGS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>02081G201</cusip>
    <value>3808000</value>
    <shrsOrPrnAmt>
      <sshPrnamt>350000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>350000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>AMICUS THERAPEUTIC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03152W109</cusip>
    <value>304557</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21062</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>21062</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>AMYLYX PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03237H101</cusip>
    <value>6946720</value>
    <shrsOrPrnAmt>
      <sshPrnamt>499764</sshPrnamt>
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      <Sole>499764</Sole>
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      <None>0</None>
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    <nameOfIssuer>APELLIS PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03753U106</cusip>
    <value>6547433</value>
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      <sshPrnamt>162750</sshPrnamt>
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      <Sole>162750</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>ARCELLX INC</nameOfIssuer>
    <titleOfClass>COMMON STOCK</titleOfClass>
    <cusip>03940C100</cusip>
    <value>19503210</value>
    <shrsOrPrnAmt>
      <sshPrnamt>169859</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>169859</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>ARCUS BIOSCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03969F109</cusip>
    <value>3888000</value>
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    <votingAuthority>
      <Sole>180000</Sole>
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      <None>0</None>
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    <nameOfIssuer>ARDELYX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>039697107</cusip>
    <value>13773843</value>
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      <Sole>2299473</Sole>
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      <None>0</None>
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    <nameOfIssuer>ARGENX SE</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>04016X101</cusip>
    <value>71929625</value>
    <shrsOrPrnAmt>
      <sshPrnamt>98500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>98500</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>ASCENDIS PHARMA A/S</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>04351P101</cusip>
    <value>44373620</value>
    <shrsOrPrnAmt>
      <sshPrnamt>194000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>194000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>AZENTA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>114340102</cusip>
    <value>12025083</value>
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      <sshPrnamt>569100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>569100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BICARA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>055477103</cusip>
    <value>9728100</value>
    <shrsOrPrnAmt>
      <sshPrnamt>489095</sshPrnamt>
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      <Sole>489095</Sole>
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      <None>0</None>
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    <nameOfIssuer>BIOCRYST PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09058V103</cusip>
    <value>119952</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12600</sshPrnamt>
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    <votingAuthority>
      <Sole>12600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BOSTON SCIENTIFIC CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>101137107</cusip>
    <value>32335075</value>
    <shrsOrPrnAmt>
      <sshPrnamt>515300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>515300</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BRIDGEBIO PHARMA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>10806X102</cusip>
    <value>9523845</value>
    <shrsOrPrnAmt>
      <sshPrnamt>128250</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>128250</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>CARIS LIFE SCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>142152107</cusip>
    <value>10066440</value>
    <shrsOrPrnAmt>
      <sshPrnamt>563000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>563000</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
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    <nameOfIssuer>CELLDEX THERAPEUTICS INC NEW</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>15117B202</cusip>
    <value>20626564</value>
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      <sshPrnamt>650270</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>650270</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
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    <nameOfIssuer>CENTESSA PHARMACEUTICALS PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>152309100</cusip>
    <value>13974608</value>
    <shrsOrPrnAmt>
      <sshPrnamt>351828</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>351828</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTURY THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15673T100</cusip>
    <value>2947824</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1304347</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>1304347</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COGENT BIOSCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>19240Q201</cusip>
    <value>24023726</value>
    <shrsOrPrnAmt>
      <sshPrnamt>624155</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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      <Sole>624155</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMPASS THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20454B104</cusip>
    <value>17485079</value>
    <shrsOrPrnAmt>
      <sshPrnamt>3305308</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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      <Sole>3305308</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>CORCEPT THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>218352102</cusip>
    <value>2025578</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50250</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50250</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CVS HEALTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126650100</cusip>
    <value>2872800</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40000</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>CYTOKINETICS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>23282W605</cusip>
    <value>2989941</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45364</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>45364</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>DANAHER CORP DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>235851102</cusip>
    <value>11660400</value>
    <shrsOrPrnAmt>
      <sshPrnamt>61500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>61500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
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    <nameOfIssuer>DEXCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>252131107</cusip>
    <value>22331680</value>
    <shrsOrPrnAmt>
      <sshPrnamt>355600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>355600</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>DIANTHUS THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>252828108</cusip>
    <value>2245447</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26757</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26757</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DYNE THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26818M108</cusip>
    <value>17625950</value>
    <shrsOrPrnAmt>
      <sshPrnamt>972198</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <votingAuthority>
      <Sole>972198</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDAP TMS S A</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>268311107</cusip>
    <value>5126160</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1378000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1378000</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDWARDS LIFESCIENCES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>28176E108</cusip>
    <value>2314312</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28900</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>ELI LILLY &amp; CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>532457108</cusip>
    <value>90781299</value>
    <shrsOrPrnAmt>
      <sshPrnamt>98700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>98700</Sole>
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      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>ENLIVEN THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29337E102</cusip>
    <value>32398800</value>
    <shrsOrPrnAmt>
      <sshPrnamt>826500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>826500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>ERASCA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29479A108</cusip>
    <value>17854128</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1103469</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1103469</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>EVOLENT HEALTH INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>30050B101</cusip>
    <value>6099000</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2675000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2675000</Sole>
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      <None>0</None>
    </votingAuthority>
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