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       <nameOfIssuer>ADOBE INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>00724F101</cusip>
       <value>11940</value>
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           <sshPrnamt>43222</sshPrnamt>
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           <Sole>43222</Sole>
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           <None>0</None>
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   <infoTable>
       <nameOfIssuer>ADURO BIOTECH INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>00739L101</cusip>
       <value>679</value>
       <shrsOrPrnAmt>
           <sshPrnamt>640595</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>640595</Sole>
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           <None>0</None>
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       <nameOfIssuer>ALPHABET INC</nameOfIssuer>
       <titleOfClass>CAP STK CL A</titleOfClass>
       <cusip>02079K305</cusip>
       <value>129554</value>
       <shrsOrPrnAmt>
           <sshPrnamt>106093</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>106093</Sole>
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           <None>0</None>
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   <infoTable>
       <nameOfIssuer>BOOKING HLDGS INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>09857L108</cusip>
       <value>173881</value>
       <shrsOrPrnAmt>
           <sshPrnamt>88597</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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           <Sole>88597</Sole>
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           <None>0</None>
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       <nameOfIssuer>FACEBOOK INC</nameOfIssuer>
       <titleOfClass>CL A</titleOfClass>
       <cusip>30303M102</cusip>
       <value>403887</value>
       <shrsOrPrnAmt>
           <sshPrnamt>2268011</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>2268011</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
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   <infoTable>
       <nameOfIssuer>FULCRUM THERAPEUTICS INC</nameOfIssuer>
       <titleOfClass>CL A</titleOfClass>
       <cusip>359616109</cusip>
       <value>2727</value>
       <shrsOrPrnAmt>
           <sshPrnamt>410714</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <votingAuthority>
           <Sole>410714</Sole>
           <Shared>0</Shared>
           <None>0</None>
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   <infoTable>
       <nameOfIssuer>INVESCO QQQ TR</nameOfIssuer>
       <titleOfClass>UNIT SER 1</titleOfClass>
       <cusip>46090E103</cusip>
       <value>9538</value>
       <shrsOrPrnAmt>
           <sshPrnamt>50517</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>50517</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
   <infoTable>
       <nameOfIssuer>ISHARES TR</nameOfIssuer>
       <titleOfClass>CORE S&amp;P500 ETF</titleOfClass>
       <cusip>464287200</cusip>
       <value>20616</value>
       <shrsOrPrnAmt>
           <sshPrnamt>69061</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>69061</Sole>
           <Shared>0</Shared>
           <None>0</None>
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   <infoTable>
       <nameOfIssuer>ISHARES TR</nameOfIssuer>
       <titleOfClass>CORE S&amp;P MCP ETF</titleOfClass>
       <cusip>464287507</cusip>
       <value>5002</value>
       <shrsOrPrnAmt>
           <sshPrnamt>25885</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>25885</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
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   <infoTable>
       <nameOfIssuer>ISHARES TR</nameOfIssuer>
       <titleOfClass>CORE S&amp;P SCP ETF</titleOfClass>
       <cusip>464287804</cusip>
       <value>4552</value>
       <shrsOrPrnAmt>
           <sshPrnamt>58484</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>58484</Sole>
           <Shared>0</Shared>
           <None>0</None>
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   <infoTable>
       <nameOfIssuer>MAGENTA THERAPEUTICS INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>55910K108</cusip>
       <value>3413</value>
       <shrsOrPrnAmt>
           <sshPrnamt>332610</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>332610</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
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   <infoTable>
       <nameOfIssuer>NEON THERAPEUTICS INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>64050Y100</cusip>
       <value>870</value>
       <shrsOrPrnAmt>
           <sshPrnamt>505871</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
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           <Sole>505871</Sole>
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           <None>0</None>
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   <infoTable>
       <nameOfIssuer>PALO ALTO NETWORKS INC</nameOfIssuer>
       <titleOfClass>COM</titleOfClass>
       <cusip>697435105</cusip>
       <value>265104</value>
       <shrsOrPrnAmt>
           <sshPrnamt>1300615</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
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       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>1300615</Sole>
           <Shared>0</Shared>
           <None>0</None>
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   </infoTable>
   <infoTable>
       <nameOfIssuer>SPDR GOLD TRUST</nameOfIssuer>
       <titleOfClass>GOLD SHS</titleOfClass>
       <cusip>78463V107</cusip>
       <value>14075</value>
       <shrsOrPrnAmt>
           <sshPrnamt>101355</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>101355</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
   <infoTable>
       <nameOfIssuer>VANGUARD GROUP</nameOfIssuer>
       <titleOfClass>DIV APP ETF</titleOfClass>
       <cusip>921908844</cusip>
       <value>342</value>
       <shrsOrPrnAmt>
           <sshPrnamt>2858</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>2858</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
   <infoTable>
       <nameOfIssuer>VANGUARD INTL EQUITY INDEX F</nameOfIssuer>
       <titleOfClass>FTSE EMR MKT ETF</titleOfClass>
       <cusip>922042858</cusip>
       <value>7558</value>
       <shrsOrPrnAmt>
           <sshPrnamt>187728</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>187728</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
   <infoTable>
       <nameOfIssuer>VANGUARD TAX MANAGED INTL FD</nameOfIssuer>
       <titleOfClass>FTSE DEV MKT ETF</titleOfClass>
       <cusip>921943858</cusip>
       <value>12795</value>
       <shrsOrPrnAmt>
           <sshPrnamt>311456</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>311456</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
   <infoTable>
       <nameOfIssuer>VANGUARD WORLD FD</nameOfIssuer>
       <titleOfClass>EXTENDED DUR</titleOfClass>
       <cusip>921910709</cusip>
       <value>7269</value>
       <shrsOrPrnAmt>
           <sshPrnamt>51442</sshPrnamt>
           <sshPrnamtType>SH</sshPrnamtType>
       </shrsOrPrnAmt>
       <investmentDiscretion>SOLE</investmentDiscretion>
       <votingAuthority>
           <Sole>51442</Sole>
           <Shared>0</Shared>
           <None>0</None>
       </votingAuthority>
   </infoTable>
</informationTable>
