<?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>S000036844</seriesId>
        <classId>C000112678</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 Legg Mason Dynamic Allocation - Growth VP</seriesName>
      <seriesId>S000036844</seriesId>
      <seriesLei>549300GC6Q5ZF7C9PL68</seriesLei>
      <repPdEnd>2020-12-31</repPdEnd>
      <repPdDate>2020-03-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>491268010.89</totAssets>
      <totLiabs>45335283.40</totLiabs>
      <netAssets>445932727.49</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>3628.90000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="280449.00000000" lei="549300QQRY1JCFQHYS08" name="Janney Montgomery Scott LLC"/>
        <borrower aggrVal="165959.82000000" lei="549300HN4UKV1E2R3U73" name="BofA Securities, Inc."/>
        <borrower aggrVal="3164454.54000000" lei="MRK678VXOI09YSSN8X19" name="TD Ameritrade Clearing, Inc."/>
        <borrower aggrVal="5044728.00000000" lei="58PU97L1C0WSRCWADL48" name="Jefferies LLC"/>
        <borrower aggrVal="12005479.50000000" lei="549300ZBQI1JB1844X09" name="TD Prime Services LLC"/>
      </borrowers>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000112678" rtn1="0.51000000" rtn2="-3.56000000" rtn3="-5.12000000"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <equityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="-191709.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="7133716.00000000"/>
            <mon3 netRealizedGain="24762697.85000000" netUnrealizedAppr="-13941545.82000000"/>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="-191709.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="7133716.00000000"/>
              <instrMon3 netRealizedGain="24762697.85000000" netUnrealizedAppr="-13941545.82000000"/>
            </optionCategory>
          </equityContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="2525486.83000000" netUnrealizedAppr="449929.38000000"/>
        <othMon2 netRealizedGain="868561.94000000" netUnrealizedAppr="-25765631.03000000"/>
        <othMon3 netRealizedGain="24881368.29000000" netUnrealizedAppr="-60219781.76000000"/>
      </returnInfo>
      <mon1Flow redemption="4574920.24000000" reinvestment="0.00000000" sales="357266.61000000"/>
      <mon2Flow redemption="5801388.73000000" reinvestment="0.00000000" sales="982363.85000000"/>
      <mon3Flow redemption="10099050.19000000" reinvestment="0.00000000" sales="418308.78000000"/>


    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 1900 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1L8638"/>
        </identifiers>
        <balance>323.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>3837240.00000000</valUSD>
        <pctVal>0.860497506338</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>1900.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>-2399400.14000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 2100 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1LF8P1"/>
        </identifiers>
        <balance>115.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>1840460.00000000</valUSD>
        <pctVal>0.412721445756</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>2100.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>-21368.25000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </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>21363039.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21363039.00000000</valUSD>
        <pctVal>4.790641655804</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="21363039.00000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI EAFE ETF</name>
        <lei>549300O0XO3KDQV68404</lei>
        <title>iShares MSCI EAFE ETF</title>
        <cusip>464287465</cusip>
        <identifiers>
          <isin value="US4642874659"/>
        </identifiers>
        <balance>122146.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6529925.16000000</valUSD>
        <pctVal>1.464329652760</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>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 2150 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1LF913"/>
        </identifiers>
        <balance>115.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2086100.00000000</valUSD>
        <pctVal>0.467805987630</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>2150.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>74738.50000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 2300 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1FSXR8"/>
        </identifiers>
        <balance>120.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2703600.00000000</valUSD>
        <pctVal>0.606279789155</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>2300.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>73200.43000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <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>311443573.08000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>311443573.08000000</valUSD>
        <pctVal>69.84093202421</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>2020-04-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>308530000.00000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>317676988.47000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <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>47049.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12126879.75000000</valUSD>
        <pctVal>2.719441521652</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="12005479.50000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 1950 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1L8646"/>
        </identifiers>
        <balance>345.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>3970260.00000000</valUSD>
        <pctVal>0.890327117802</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>1950.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>-3199306.76000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vanguard Small-Cap ETF</name>
        <lei>HZKQM2YGJWB4I8NIZL49</lei>
        <title>Vanguard Small-Cap ETF</title>
        <cusip>922908751</cusip>
        <identifiers>
          <isin value="US9229087518"/>
        </identifiers>
        <balance>56621.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6536328.24000000</valUSD>
        <pctVal>1.465765537503</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="5044728.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core S&amp;P 500 ETF</name>
        <lei>5493007M4YMN8XL48C14</lei>
        <title>iShares Core S&amp;P 500 ETF</title>
        <cusip>464287200</cusip>
        <identifiers>
          <isin value="US4642872000"/>
        </identifiers>
        <balance>200410.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>51785944.00000000</valUSD>
        <pctVal>11.61294984817</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>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 2250 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1LF8Y2"/>
        </identifiers>
        <balance>115.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2413850.00000000</valUSD>
        <pctVal>0.541303620747</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>2250.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>70463.21000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core U.S. Aggregate Bond ETF</name>
        <lei>549300F7VSXTKBGHJE47</lei>
        <title>iShares Core U.S. Aggregate Bond ETF</title>
        <cusip>464287226</cusip>
        <identifiers>
          <isin value="US4642872265"/>
        </identifiers>
        <balance>71928.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8298333.36000000</valUSD>
        <pctVal>1.860893549282</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>iShares 20+ Year Treasury Bond ETF</name>
        <lei>549300WWURKS1JGBZU59</lei>
        <title>iShares 20+ Year Treasury Bond ETF</title>
        <cusip>464287432</cusip>
        <identifiers>
          <isin value="US4642874329"/>
        </identifiers>
        <balance>35858.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5915494.26000000</valUSD>
        <pctVal>1.326544094060</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="3610863.36000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 1850 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1L85Y1"/>
        </identifiers>
        <balance>305.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2898110.00000000</valUSD>
        <pctVal>0.649898476012</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>1850.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>-2531585.00000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <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>248753.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21231068.55000000</valUSD>
        <pctVal>4.761047404953</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>Options Clearing Corp.</name>
        <lei>549300CII6SLYGKNHA04</lei>
        <title>S+P 500 INDEX JUN21 1800 PUT</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1KZKH2"/>
        </identifiers>
        <balance>307.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2597220.00000000</valUSD>
        <pctVal>0.582424172950</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <optionSwaptionWarrantDeriv derivCat="OPT">
            <counterparties>
              <counterpartyName>Options Clearing Corp.</counterpartyName>
              <counterpartyLei>549300CII6SLYGKNHA04</counterpartyLei>
            </counterparties>
            <putOrCall>Put</putOrCall>
            <writtenOrPur>Purchased</writtenOrPur>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>S&amp;P 500 Index</indexName>
                <indexIdentifier>SPX Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <shareNo>100.00000000</shareNo>
            <exercisePrice>1800.00000000</exercisePrice>
            <exercisePriceCurCd>USD</exercisePriceCurCd>
            <expDt>2021-06-18</expDt>
            <delta>XXXX</delta>
            <unrealizedAppr>-2431611.00000000</unrealizedAppr>
          </optionSwaptionWarrantDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </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>2020-04-28</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>
  <documents>XXXX</documents>
</edgarSubmission>
