<?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>S000007933</seriesId>
        <classId>C000021511</classId>
        <classId>C000021512</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 JPMorgan Asset Allocation - Moderate VP</seriesName>
      <seriesId>S000007933</seriesId>
      <seriesLei>549300F2T3DH20P4KY87</seriesLei>
      <repPdEnd>2020-12-31</repPdEnd>
      <repPdDate>2020-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>6445482378.38</totAssets>
      <totLiabs>2381196.99</totLiabs>
      <netAssets>6443101181.39</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>11493744.24000000</cshNotRptdInCorD>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000021511" rtn1="4.33000000" rtn2="3.52000000" rtn3="2.18000000"/>
          <monthlyTotReturn classId="C000021512" rtn1="4.30000000" rtn2="3.57000000" rtn3="2.04000000"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <equityContracts>
            <mon1 netRealizedGain="-143208281.82000000" netUnrealizedAppr="-55495496.37000000"/>
            <mon2 netRealizedGain="-12015287.24000000" netUnrealizedAppr="-52666477.95000000"/>
            <mon3 netRealizedGain="-229333644.21000000" netUnrealizedAppr="207375190.26000000"/>
            <futureCategory>
              <instrMon1 netRealizedGain="-143208281.82000000" netUnrealizedAppr="-55495496.37000000"/>
              <instrMon2 netRealizedGain="-12015287.24000000" netUnrealizedAppr="-52666477.95000000"/>
              <instrMon3 netRealizedGain="-229333644.21000000" netUnrealizedAppr="207375190.26000000"/>
            </futureCategory>
          </equityContracts>
          <foreignExchgContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="677820.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="638715.00000000"/>
            <mon3 netRealizedGain="-666667.20000000" netUnrealizedAppr="1581333.62000000"/>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="677820.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="638715.00000000"/>
              <instrMon3 netRealizedGain="-666667.20000000" netUnrealizedAppr="1581333.62000000"/>
            </futureCategory>
          </foreignExchgContracts>
          <interestRtContracts>
            <mon1 netRealizedGain="25250601.36000000" netUnrealizedAppr="-21304462.58000000"/>
            <mon2 netRealizedGain="32348140.36000000" netUnrealizedAppr="-27807284.47000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="883260.58000000"/>
            <futureCategory>
              <instrMon1 netRealizedGain="25250601.36000000" netUnrealizedAppr="-21304462.58000000"/>
              <instrMon2 netRealizedGain="32348140.36000000" netUnrealizedAppr="-27807284.47000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="883260.58000000"/>
            </futureCategory>
          </interestRtContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="498038.90000000" netUnrealizedAppr="443683703.76000000"/>
        <othMon2 netRealizedGain="-14319501.59000000" netUnrealizedAppr="282539695.69000000"/>
        <othMon3 netRealizedGain="38046240.32000000" netUnrealizedAppr="108013065.29000000"/>
      </returnInfo>
      <mon1Flow redemption="17601995.14000000" reinvestment="0.00000000" sales="15248595.49000000"/>
      <mon2Flow redemption="16412076.24000000" reinvestment="0.00000000" sales="19585481.78000000"/>
      <mon3Flow redemption="19218293.32000000" reinvestment="0.00000000" sales="9554587.67000000"/>


    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Osaka Exchange</name>
        <lei>3538001249AILNPRUX57</lei>
        <title>TOPIX INDX FUTR   SEP20 XOSE 20200910</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1CVSG4"/>
        </identifiers>
        <balance>-1344.00000000</balance>
        <units>NC</units>
        <currencyConditional curCd="JPY" exchangeRt="107.88500000"/>
        <valUSD>7521379.54000000</valUSD>
        <pctVal>0.116735393846</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>JP</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Osaka Exchange</counterpartyName>
              <counterpartyLei>3538001249AILNPRUX57</counterpartyLei>
            </counterparties>
            <payOffProf>Short</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>TOPIX Index</indexName>
                <indexIdentifier>TPU0 Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-10</expDate>
            <notionalAmt>-21757684032.00000000</notionalAmt>
            <curCd>JPY</curCd>
            <unrealizedAppr>7521379.54000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Intermediate Bond</name>
        <lei>549300ZF0O00XTDBKY49</lei>
        <title>Transamerica Intermediate Bond</title>
        <cusip>89354D106</cusip>
        <identifiers>
          <isin value="US89354D1063"/>
        </identifiers>
        <balance>58534510.07500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>635684779.41000000</valUSD>
        <pctVal>9.866130633585</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 International Small Cap Value</name>
        <lei>549300K8V3XQ18VXIY98</lei>
        <title>Transamerica International Small Cap Value</title>
        <cusip>89355J516</cusip>
        <identifiers>
          <isin value="US89355J5166"/>
        </identifiers>
        <balance>6425558.11400000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>73636895.99000000</valUSD>
        <pctVal>1.142879708341</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>Chicago Board of Trade</name>
        <lei>549300EX04Q2QBFQTQ27</lei>
        <title>US 10YR NOTE (CBT)SEP20 XCBT 20200921</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1JZD82"/>
        </identifiers>
        <balance>2802.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>1460796.88000000</valUSD>
        <pctVal>0.022672263540</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DIR</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Board of Trade</counterpartyName>
              <counterpartyLei>549300EX04Q2QBFQTQ27</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>10 Year US Treasury Note</indexName>
                <indexIdentifier>TYU0 Comdty</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-21</expDate>
            <notionalAmt>388498796.87000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>1460796.88000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Emerging Markets Equity</name>
        <lei>549300KIISUL7GFWS593</lei>
        <title>Transamerica Emerging Markets Equity</title>
        <cusip>89355J854</cusip>
        <identifiers>
          <isin value="US89355J8541"/>
        </identifiers>
        <balance>15704262.89700000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>148405284.38000000</valUSD>
        <pctVal>2.303320717803</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>Chicago Mercantile Exchange</name>
        <lei>SNZ2OJLFK8MNNCLQOF39</lei>
        <title>E-MINI RUSS 2000  SEP20 XCME 20200918</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1F5XF4"/>
        </identifiers>
        <balance>2476.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>7156128.72000000</valUSD>
        <pctVal>0.111066527104</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Mercantile Exchange</counterpartyName>
              <counterpartyLei>SNZ2OJLFK8MNNCLQOF39</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>Russell 2000 Index</indexName>
                <indexIdentifier>RTYU0 Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-18</expDate>
            <notionalAmt>170818751.28000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>7156128.72000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Emerging Markets Opportunities</name>
        <lei>549300Q6NK6QLC610345</lei>
        <title>Transamerica Emerging Markets Opportunities</title>
        <cusip>89360T210</cusip>
        <identifiers>
          <isin value="US89360T2107"/>
        </identifiers>
        <balance>13274940.33600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>117483221.97000000</valUSD>
        <pctVal>1.823395577107</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>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Note/Bond</title>
        <cusip>9128285X4</cusip>
        <identifiers>
          <isin value="US9128285X47"/>
        </identifiers>
        <balance>124239800.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>125899566.70000000</valUSD>
        <pctVal>1.954021257087</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2021-01-31</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>2.50000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica High Yield Bond</name>
        <lei>549300E2RRC6XIJ79123</lei>
        <title>Transamerica High Yield Bond</title>
        <cusip>893961367</cusip>
        <identifiers>
          <isin value="US8939613670"/>
        </identifiers>
        <balance>51364009.67200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>428375840.66000000</valUSD>
        <pctVal>6.648597136691</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 SMALL COMPANY GROWTH LIQUID TA SMALL COMPANY GROWTH LIQUID</name>
        <lei>N/A</lei>
        <title>TA SMALL COMPANY GROWTH LIQUID TA SMALL COMPANY GROWTH LIQUID</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ACI02MN09"/>
        </identifiers>
        <balance>5959.40200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4182.31000000</valUSD>
        <pctVal>0.000064911443</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>Chicago Mercantile Exchange</name>
        <lei>SNZ2OJLFK8MNNCLQOF39</lei>
        <title>CAD CURRENCY FUT   SEP20 XCME 20200915</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1MJZN7"/>
        </identifiers>
        <balance>869.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-182099.48000000</valUSD>
        <pctVal>-0.00282627068</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DFE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Mercantile Exchange</counterpartyName>
              <counterpartyLei>SNZ2OJLFK8MNNCLQOF39</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>Canadian Dollar FX Currency Future</indexName>
                <indexIdentifier>CDU0 Curncy</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-15</expDate>
            <notionalAmt>64157879.48000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>-182099.48000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <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>14990292.63700000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>427673048.93000000</valUSD>
        <pctVal>6.637689474212</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 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>4027063.43300000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>53197507.95000000</valUSD>
        <pctVal>0.825650668092</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 Core Bond</name>
        <lei>549300X2MQP8EJ7WT185</lei>
        <title>Transamerica Core Bond</title>
        <cusip>893962423</cusip>
        <identifiers>
          <isin value="US8939624230"/>
        </identifiers>
        <balance>35639984.95900000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>378496640.26000000</valUSD>
        <pctVal>5.874448182704</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>Chicago Board of Trade</name>
        <lei>549300EX04Q2QBFQTQ27</lei>
        <title>US ULTRA BOND CBT SEP20 XCBT 20200921</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1JZCF7"/>
        </identifiers>
        <balance>-571.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-447349.95000000</valUSD>
        <pctVal>-0.00694308435</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DIR</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Board of Trade</counterpartyName>
              <counterpartyLei>549300EX04Q2QBFQTQ27</counterpartyLei>
            </counterparties>
            <payOffProf>Short</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>US Treasury Ultra Long Bond</indexName>
                <indexIdentifier>WNU0 Comdty</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-21</expDate>
            <notionalAmt>-124119868.80000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>-447349.95000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Chicago Mercantile Exchange</name>
        <lei>SNZ2OJLFK8MNNCLQOF39</lei>
        <title>S+P500 EMINI FUT  SEP20 XCME 20200918</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1CVS09"/>
        </identifiers>
        <balance>-6613.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-22024124.39000000</valUSD>
        <pctVal>-0.34182490341</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Mercantile Exchange</counterpartyName>
              <counterpartyLei>SNZ2OJLFK8MNNCLQOF39</counterpartyLei>
            </counterparties>
            <payOffProf>Short</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>E-mini S&amp;P 500 Index</indexName>
                <indexIdentifier>ESU0 Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-18</expDate>
            <notionalAmt>-999767038.11000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>-22024124.39000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TRANSAMERICA MID CAP GROWTH</name>
        <lei>549300BVKN1RJS81UT94</lei>
        <title>Transamerica Mid Cap Growth</title>
        <cusip>89355J359</cusip>
        <identifiers>
          <isin value="US89355J3591"/>
        </identifiers>
        <balance>6210929.85000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>71053037.48000000</valUSD>
        <pctVal>1.102776993247</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 WMC US Growth VP</name>
        <lei>5493001V6580U6S22125</lei>
        <title>Transamerica WMC US Growth VP</title>
        <cusip>89360C332</cusip>
        <identifiers>
          <isin value="US89360C3328"/>
        </identifiers>
        <balance>10937657.09600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>408630869.11000000</valUSD>
        <pctVal>6.342145771205</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>71838882.67500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>650141888.21000000</valUSD>
        <pctVal>10.09051184991</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>Chicago Board of Trade</name>
        <lei>549300EX04Q2QBFQTQ27</lei>
        <title>US 5YR NOTE (CBT) SEP20 XCBT 20200930</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1HVCQ4"/>
        </identifiers>
        <balance>5531.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2065091.84000000</valUSD>
        <pctVal>0.032051209221</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DIR</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Chicago Board of Trade</counterpartyName>
              <counterpartyLei>549300EX04Q2QBFQTQ27</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>5 Year US Treasury Note</indexName>
                <indexIdentifier>FVU0 Comdty</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-30</expDate>
            <notionalAmt>693414949.99000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>2065091.84000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Unconstrained Bond</name>
        <lei>54930000WQFBEX4N7U31</lei>
        <title>Transamerica Unconstrained Bond</title>
        <cusip>89355J243</cusip>
        <identifiers>
          <isin value="US89355J2437"/>
        </identifiers>
        <balance>81764678.40200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>782487972.31000000</valUSD>
        <pctVal>12.14458612833</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 International Growth Fund</name>
        <lei>5493009P69ULJNMMN265</lei>
        <title>Transamerica International Growth Fund</title>
        <cusip>893961649</cusip>
        <identifiers>
          <isin value="US8939616491"/>
        </identifiers>
        <balance>49537529.77200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>366577720.31000000</valUSD>
        <pctVal>5.689460866590</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 International Equity</name>
        <lei>549300VAB3EZIHJBZ196</lei>
        <title>Transamerica International Equity</title>
        <cusip>893509216</cusip>
        <identifiers>
          <isin value="US8935092168"/>
        </identifiers>
        <balance>19068386.97200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>302805985.12000000</valUSD>
        <pctVal>4.699693153890</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>35712248.99900000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>441760520.12000000</valUSD>
        <pctVal>6.856333738727</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 JPMorgan Enhanced Index VP</name>
        <lei>5493008SO3M7BKJ77M94</lei>
        <title>Transamerica JPMorgan Enhanced Index VP</title>
        <cusip>89360C662</cusip>
        <identifiers>
          <isin value="US89360C6628"/>
        </identifiers>
        <balance>26972135.01300000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>581788952.23000000</valUSD>
        <pctVal>9.029641718345</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 Janus Mid-Cap Growth VP</name>
        <lei>549300ULOTL59DZR5L60</lei>
        <title>Transamerica Janus Mid-Cap Growth VP</title>
        <cusip>89360D108</cusip>
        <identifiers>
          <isin value="US89360D1081"/>
        </identifiers>
        <balance>4003377.90500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>146123293.53000000</valUSD>
        <pctVal>2.267903132610</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>ICE Futures U.S., Inc.</name>
        <lei>5493004R83R1LVX2IL36</lei>
        <title>MSCI EMGMKT       SEP20 IFUS 20200918</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1GG644"/>
        </identifiers>
        <balance>123.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>166716.89000000</valUSD>
        <pctVal>0.002587525561</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>ICE Futures U.S., Inc.</counterpartyName>
              <counterpartyLei>5493004R83R1LVX2IL36</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>MSCI Emerging Markets</indexName>
                <indexIdentifier>MESU0 Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-18</expDate>
            <notionalAmt>5895338.11000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>166716.89000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transamerica Mid Cap Value Opportunities</name>
        <lei>549300EBY5BMUT2S0673</lei>
        <title>Transamerica Mid Cap Value Opportunities</title>
        <cusip>89354D767</cusip>
        <identifiers>
          <isin value="US89354D7672"/>
        </identifiers>
        <balance>7696129.15200000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>73882839.86000000</valUSD>
        <pctVal>1.146696874377</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>86687675.42000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>86687675.42000000</valUSD>
        <pctVal>1.345434022833</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>82890100.00000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>88421435.59000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <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>6235.36700000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>22245.30000000</valUSD>
        <pctVal>0.000345257654</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>ICE Futures U.S., Inc.</name>
        <lei>5493004R83R1LVX2IL36</lei>
        <title>MSCI EAFE         SEP20 IFUS 20200918</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="ADI1MSDH4"/>
        </identifiers>
        <balance>1984.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>3310700.12000000</valUSD>
        <pctVal>0.051383643168</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>ICE Futures U.S., Inc.</counterpartyName>
              <counterpartyLei>5493004R83R1LVX2IL36</counterpartyLei>
            </counterparties>
            <payOffProf>Long</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>MSCI EAFE</indexName>
                <indexIdentifier>MFSU0 Index</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2020-09-18</expDate>
            <notionalAmt>173106579.88000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>3310700.12000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <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>8283757.91400000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>128232572.51000000</valUSD>
        <pctVal>1.990230618764</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>
    </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>
