<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>LION BIOTECHNOLOGIES INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>53619R102</cusip>
			<value>67865</value>
			<shrsOrPrnAmt>
				<sshPrnamt>5604015</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2</otherManager>
			<votingAuthority>
				<Sole>5604015</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>ONCOTHYREON INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>682324108</cusip>
			<value>407</value>
			<shrsOrPrnAmt>
				<sshPrnamt>250000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2</otherManager>
			<votingAuthority>
				<Sole>250000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
