<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns1:informationTable xmlns:ns1="http://www.sec.gov/edgar/document/thirteenf/informationtable">
	<ns1:infoTable>
		<ns1:nameOfIssuer>ACLARIS THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>00461U105</ns1:cusip>
		<ns1:value>2285233</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>434455</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>434455</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>BICARA THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>055477103</ns1:cusip>
		<ns1:value>10215383</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>548919</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>548919</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>BIOMEA FUSION INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>09077A106</ns1:cusip>
		<ns1:value>2742847</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>2048757</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>2048757</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>BRIDGEBIO ONCOLOGY THERAPEUT</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM NEW</ns1:titleOfClass>
		<ns1:cusip>107924102</ns1:cusip>
		<ns1:value>4137874</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>1018018</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>1018018</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>BRIDGEBIO PHARMA INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>10806X102</ns1:cusip>
		<ns1:value>203296404</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>3089611</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>3089611</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>COMPASS PATHWAYS PLC</ns1:nameOfIssuer>
		<ns1:titleOfClass>SPONSORED ADS</ns1:titleOfClass>
		<ns1:cusip>20451W101</ns1:cusip>
		<ns1:value>21550260</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>1732336</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>1732336</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>EUPRAXIA PHARMACEUTICALS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>29842P105</ns1:cusip>
		<ns1:value>2957500</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>325000</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>325000</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>MARKER THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM NEW</ns1:titleOfClass>
		<ns1:cusip>57055L206</ns1:cusip>
		<ns1:value>348146</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>325370</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>325370</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>MONTE ROSA THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>61225M102</ns1:cusip>
		<ns1:value>18559072</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>1555664</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>1555664</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>ONKURE THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM CL A</ns1:titleOfClass>
		<ns1:cusip>68277Q105</ns1:cusip>
		<ns1:value>241454</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>88607</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>88607</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>SCHOLAR ROCK HLDG CORP</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>80706P103</ns1:cusip>
		<ns1:value>2030938</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>42031</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>42031</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>SYNDAX PHARMACEUTICALS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>87164F105</ns1:cusip>
		<ns1:value>24755953</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>1316806</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>1316806</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>UROGEN PHARMA LTD</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>M96088105</ns1:cusip>
		<ns1:value>4388040</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>108000</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>108000</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>VTV THERAPEUTICS INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>CL A NEW</ns1:titleOfClass>
		<ns1:cusip>918385204</ns1:cusip>
		<ns1:value>1812621</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>58775</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
		</ns1:shrsOrPrnAmt>
		<ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion>
		<ns1:votingAuthority>
			<ns1:Sole>58775</ns1:Sole>
			<ns1:Shared>0</ns1:Shared>
			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
</ns1:informationTable>
