<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sec.gov/edgar/nport eis_NPORT_Filer.xsd">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0000778207</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000025458</seriesId>
        <classId>C000076204</classId>
        <classId>C000076203</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>TRANSAMERICA SERIES TRUST</regName>
      <regFileNumber>811-04419</regFileNumber>
      <regCik>0000778207</regCik>
      <regLei>5493000QR1WGXIM5V222</regLei>
      <regStreet1>1801 CALIFORNIA STREET</regStreet1>
      <regStreet2>SUITE 5200</regStreet2>
      <regCity>DENVER</regCity>
      <regStateConditional regCountry="US" regState="US-CO"/>
      <regZipOrPostalCode>80202</regZipOrPostalCode>
      <regPhone>720-493-4256</regPhone>
      <seriesName>Transamerica BlackRock Tactical Allocation VP</seriesName>
      <seriesId>S000025458</seriesId>
      <seriesLei>549300LH8R17FXLRO183</seriesLei>
      <repPdEnd>2020-12-31</repPdEnd>
      <repPdDate>2020-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>1348365036.54</totAssets>
      <totLiabs>41423492.48</totLiabs>
      <netAssets>1306941544.06</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.00000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.00000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
      <delayDeliv>0.00000000</delayDeliv>
      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <cshNotRptdInCorD>0.00000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="1743238.00000000" lei="AC28XWWI3WIBK2824319" name="Barclays Capital Inc."/>
        <borrower aggrVal="16603.00000000" lei="MBNUM2BPBDO7JBLYG310" name="Citigroup Global Markets Inc."/>
        <borrower aggrVal="2144645.34000000" lei="549300LCO2FLSSVFFR64" name="RBC Capital Markets, LLC"/>
        <borrower aggrVal="85059.18000000" lei="12UUJYTN7D3SW8KCSG25" name="Citadel Securities LLC"/>
        <borrower aggrVal="3553042.00000000" lei="549300HN4UKV1E2R3U73" name="BofA Securities, Inc."/>
        <borrower aggrVal="3443747.06000000" lei="1V8Y6QCX6YMJ2OELII46" name="Credit Suisse Securities (USA) LLC"/>
        <borrower aggrVal="127491.00000000" lei="VYVVCKR63DVZZN70PB21" name="Wells Fargo Securities, LLC"/>
      </borrowers>
      <aggregateCondition isNonCashCollateral="Y">
        <aggregateInfos>
          <aggregateInfo amt="4648394.84000000" collatrl="5325594.94000000">
            <invstCat>UST</invstCat>
          </aggregateInfo>
        </aggregateInfos>
      </aggregateCondition>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000076203" rtn1="6.68000000" rtn2="3.36000000" rtn3="2.02000000"/>
          <monthlyTotReturn classId="C000076204" rtn1="6.72000000" rtn2="3.28000000" rtn3="2.03000000"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="-10799540.38000000" netUnrealizedAppr="90453246.68000000"/>
        <othMon2 netRealizedGain="1807885.89000000" netUnrealizedAppr="39547961.30000000"/>
        <othMon3 netRealizedGain="471178.46000000" netUnrealizedAppr="25253847.12000000"/>
      </returnInfo>
      <mon1Flow redemption="14402159.49000000" reinvestment="0.00000000" sales="1081976.81000000"/>
      <mon2Flow redemption="11032582.53000000" reinvestment="0.00000000" sales="526510.87000000"/>
      <mon3Flow redemption="15125962.54000000" reinvestment="0.00000000" sales="498743.16000000"/>


    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Transamerica JPMorgan Enhanced Index VP</name>
        <lei>5493008SO3M7BKJ77M94</lei>
        <title>Transamerica JPMorgan Enhanced Index VP</title>
        <cusip>89360C662</cusip>
        <identifiers>
          <isin value="US89360C6628"/>
        </identifiers>
        <balance>6469273.79000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>139542235.65000000</valUSD>
        <pctVal>10.67700665605</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TA GLOBAL ALLOC LIQUID TRUST MUTUAL FUND</name>
        <lei>N/A</lei>
        <title>TA GLOBAL ALLOC LIQUID TRUST MUTUAL FUND</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ACI08ZQ19"/>
        </identifiers>
        <balance>13520.76200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48236.67000000</valUSD>
        <pctVal>0.003690805470</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>Y</isRestrictedSec>

        <fairValLevel>N/A</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica JPMorgan Mid Cap Value VP</name>
        <lei>549300MXP8VPJ6N4LS61</lei>
        <title>Transamerica JPMorgan Mid Cap Value VP</title>
        <cusip>89360C647</cusip>
        <identifiers>
          <isin value="US89360C6479"/>
        </identifiers>
        <balance>1215226.54100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16053142.61000000</valUSD>
        <pctVal>1.228298440964</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica JP Morgan Core Bond VP</name>
        <lei>5493000FFMR7RP5KH592</lei>
        <title>Transamerica JP Morgan Core Bond VP</title>
        <cusip>89360C688</cusip>
        <identifiers>
          <isin value="US89360C6883"/>
        </identifiers>
        <balance>5858445.13300000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>81432387.35000000</valUSD>
        <pctVal>6.230759724496</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vanguard Total Bond Market ETF</name>
        <lei>CIJB0QNLPT2SSWMJ5W92</lei>
        <title>Vanguard Total Bond Market ETF</title>
        <cusip>921937835</cusip>
        <identifiers>
          <isin value="US9219378356"/>
        </identifiers>
        <balance>431975.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38160671.50000000</valUSD>
        <pctVal>2.919845319282</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Greystone International Growth VP Initial Class</name>
        <lei>5493003XOLH4BIQ5W804</lei>
        <title>Transamerica Greystone International Growth VP</title>
        <cusip>89360C555</cusip>
        <identifiers>
          <isin value="US89360C5554"/>
        </identifiers>
        <balance>9098669.80200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>71879491.44000000</valUSD>
        <pctVal>5.499824515234</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SPDR Portfolio Long Term Treasury ETF</name>
        <lei>549300GYQKAMF6JUVI06</lei>
        <title>SPDR Portfolio Long Term Treasury ETF</title>
        <cusip>78464A664</cusip>
        <identifiers>
          <isin value="US78464A6644"/>
        </identifiers>
        <balance>342020.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16044158.20000000</valUSD>
        <pctVal>1.227611003179</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Large Cap Value</name>
        <lei>549300NMC5GPLD2ULC77</lei>
        <title>Transamerica Large Cap Value</title>
        <cusip>893509257</cusip>
        <identifiers>
          <isin value="US8935092572"/>
        </identifiers>
        <balance>3397066.02100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>30743447.49000000</valUSD>
        <pctVal>2.352320012301</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>WisdomTree Japan Hedged Equity Fund</name>
        <lei>549300MCUICL7FEQ7B68</lei>
        <title>WisdomTree Japan Hedged Equity Fund</title>
        <cusip>97717W851</cusip>
        <identifiers>
          <isin value="US97717W8516"/>
        </identifiers>
        <balance>45206.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2125586.12000000</valUSD>
        <pctVal>0.162638193701</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="2053645.52000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Barrow Hanley Dividend Focused VP</name>
        <lei>5493007OQ0UKCTB8XO19</lei>
        <title>Transamerica Barrow Hanley Dividend Focused VP</title>
        <cusip>89360C860</cusip>
        <identifiers>
          <isin value="US89360C8608"/>
        </identifiers>
        <balance>2935189.20600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>52040904.62000000</valUSD>
        <pctVal>3.981884641782</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Bond</name>
        <lei>54930028OHE6MAPEQC05</lei>
        <title>Transamerica Bond</title>
        <cusip>893961334</cusip>
        <identifiers>
          <isin value="US8939613340"/>
        </identifiers>
        <balance>8142533.35500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>77516917.54000000</valUSD>
        <pctVal>5.931169446124</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SPDR S&amp;P 500 ETF Trust</name>
        <lei>549300NZAMSJ8FXPQQ63</lei>
        <title>SPDR S&amp;P 500 ETF Trust</title>
        <cusip>78462F103</cusip>
        <identifiers>
          <isin value="US78462F1030"/>
        </identifiers>
        <balance>91179.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>28115956.44000000</valUSD>
        <pctVal>2.151278805680</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="3443747.06000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State Street Global Advisors</name>
        <lei>5493008BJIBKQ5KTIF74</lei>
        <title>State Street Navigator Securities Lending Government Money Market Portfolio</title>
        <cusip>857492706</cusip>
        <identifiers>
          <isin value="US8574927062"/>
        </identifiers>
        <balance>6099411.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6099411.00000000</valUSD>
        <pctVal>0.466693482024</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="6099411.00000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>WisdomTree Europe Hedged Equity Fund</name>
        <lei>549300DC1HYUY14EQX39</lei>
        <title>WisdomTree Europe Hedged Equity Fund</title>
        <cusip>97717X701</cusip>
        <identifiers>
          <isin value="US97717X7012"/>
        </identifiers>
        <balance>36801.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2234188.71000000</valUSD>
        <pctVal>0.170947868338</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="2046788.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica WMC US Growth VP</name>
        <lei>5493001V6580U6S22125</lei>
        <title>Transamerica WMC US Growth VP</title>
        <cusip>89360C332</cusip>
        <identifiers>
          <isin value="US89360C3328"/>
        </identifiers>
        <balance>2500382.28400000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>93414282.13000000</valUSD>
        <pctVal>7.147548607247</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica TS&amp;W International Equity VP</name>
        <lei>549300BLBBCIJ2CU0C98</lei>
        <title>Transamerica TS&amp;W International Equity VP</title>
        <cusip>89360C159</cusip>
        <identifiers>
          <isin value="US89360C1595"/>
        </identifiers>
        <balance>3666253.97100000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>44251685.43000000</valUSD>
        <pctVal>3.385896303558</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Pimco Total Return VP</name>
        <lei>JG2TUH0Q6HM6T4LE7X38</lei>
        <title>Transamerica Pimco Total Return VP</title>
        <cusip>89360C514</cusip>
        <identifiers>
          <isin value="US89360C5141"/>
        </identifiers>
        <balance>32451394.99500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>401423756.09000000</valUSD>
        <pctVal>30.71474450517</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Morgan Stanley Capital Growth VP</name>
        <lei>549300WQP4ZZ4SI8CF52</lei>
        <title>Transamerica Morgan Stanley Capital Growth VP</title>
        <cusip>89360C621</cusip>
        <identifiers>
          <isin value="US89360C6214"/>
        </identifiers>
        <balance>1396514.08800000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>39842546.93000000</valUSD>
        <pctVal>3.048533204188</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica T Rowe Price Small Cap VP</name>
        <lei>54930020T7SCFWL80645</lei>
        <title>Transamerica T Rowe Price Small Cap VP</title>
        <cusip>89360C449</cusip>
        <identifiers>
          <isin value="US89360C4490"/>
        </identifiers>
        <balance>3339727.26500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>51698978.06000000</valUSD>
        <pctVal>3.955722296453</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FIXED INC CLEARING CORP.REPO</name>
        <lei>549300H47WTHXPU08X20</lei>
        <title>FIXED INC CLEARING CORP.REPO</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="85748R009"/>
        </identifiers>
        <balance>4089109.27000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>4089109.27000000</valUSD>
        <pctVal>0.312876217653</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>RA</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <repurchaseAgrmt>
          <transCat>Repurchase</transCat>
          <clearedCentCparty centralCounterparty="FIXED INC CLEARING CORP.REPO" isCleared="Y"/>
          <isTriParty>N</isTriParty>
          <repurchaseRt>0.00000000</repurchaseRt>
          <maturityDt>2020-07-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>4176000.00000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>4170943.91000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Short-Term Bond</name>
        <lei>549300151BL06CDX4A76</lei>
        <title>Transamerica Short-Term Bond</title>
        <cusip>893961292</cusip>
        <identifiers>
          <isin value="US8939612920"/>
        </identifiers>
        <balance>9141488.75200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>92054791.73000000</valUSD>
        <pctVal>7.043527856956</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vanguard Extended Duration Treasury ETF</name>
        <lei>LPJF5F1SN6L2WBUKDV11</lei>
        <title>Vanguard Extended Duration Treasury ETF</title>
        <cusip>921910709</cusip>
        <identifiers>
          <isin value="US9219107094"/>
        </identifiers>
        <balance>146126.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24261299.78000000</valUSD>
        <pctVal>1.856341616062</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="3569645.00000000"/>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2020-07-24</ncom:dateSigned>
      <ncom:nameOfApplicant>TRANSAMERICA SERIES TRUST</ncom:nameOfApplicant>
      <ncom:signature>Vincent Toner</ncom:signature>
      <ncom:signerName>Vincent Toner</ncom:signerName>
      <ncom:title>Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
