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          <isin value="US88059FAV31"/>
          <ticker value="TVASP"/>
          <other otherDesc="SEDOL" value="BYWCFF1"/>
        </identifiers>
        <balance>6000000.0000000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>5514190.5600000000</valUSD>
        <pctVal>3.3131299769</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGA</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-11-01</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.000000000000000</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>U.S. TREASURY</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Strip Principal 0.00 11/15/2025</title>
        <cusip>912820Y43</cusip>
        <identifiers>
          <isin value="US912820Y435"/>
          <ticker value="SP"/>
          <other otherDesc="SEDOL" value="BFY6L38"/>
        </identifiers>
        <balance>1100000.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1015838.4200000000</valUSD>
        <pctVal>0.6103533573</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGA</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-11-15</maturityDt>
          <couponKind>None</couponKind>
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          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>U.S. TREASURY</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Strip Coupon 0.00 05/15/2025</title>
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          <isin value="US912833LV09"/>
          <ticker value="S"/>
          <other otherDesc="SEDOL" value="B073KF6"/>
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        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>282334.5400000000</valUSD>
        <pctVal>0.1696370515</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGA</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-05-15</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.000000000000000</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>U.S. TREASURY</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Strip Coupon 0.00 08/15/2025</title>
        <cusip>912833LW8</cusip>
        <identifiers>
          <isin value="US912833LW81"/>
          <ticker value="S"/>
          <other otherDesc="SEDOL" value="2143420"/>
        </identifiers>
        <balance>2800000.0000000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>2610878.4000000000</valUSD>
        <pctVal>1.5687124699</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGA</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-08-15</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.000000000000000</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>U.S. TREASURY</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Strip Coupon 0.00 11/15/2025</title>
        <cusip>912833LX6</cusip>
        <identifiers>
          <isin value="US912833LX64"/>
          <ticker value="S"/>
          <other otherDesc="SEDOL" value="BP8YH18"/>
        </identifiers>
        <balance>87000000.0000000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>80285503.5600000000</valUSD>
        <pctVal>48.2385049377</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGA</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-11-15</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.000000000000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2024-02-27</ncom:dateSigned>
      <ncom:nameOfApplicant>American Century Target Maturities Trust</ncom:nameOfApplicant>
      <ncom:signature>Amy R. Bitter</ncom:signature>
      <ncom:signerName>Amy R. Bitter</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
