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        <com:street1>100 OVERLOOK CENTER, SUITE 101</com:street1>
        <com:city>PRINCETON</com:city>
        <com:stateOrCountry>NJ</com:stateOrCountry>
        <com:zipCode>08540</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(609) 716-7900</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Traynor Richard M.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
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      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
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      <noOfUnitsOutstanding>159831701</noOfUnitsOutstanding>
      <approxSaleDate>05/11/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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      <securitiesClassTitle>Common</securitiesClassTitle>
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      <natureOfAcquisitionTransaction>Pre-IPO</natureOfAcquisitionTransaction>
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      <isGiftTransaction>N</isGiftTransaction>
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      <paymentDate>12/10/2020</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
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    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
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        <name>RICHARD TRAYNOR</name>
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          <com:street2>Suite 101</com:street2>
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          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08540</com:zipCode>
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      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/06/2023</saleDate>
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      <grossProceeds>214500.00</grossProceeds>
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        <name>RICHARD TRAYNOR</name>
        <address>
          <com:street1>100 Overlook Center</com:street1>
          <com:street2>Suite 101</com:street2>
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          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08540</com:zipCode>
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      <securitiesClassTitle>Common</securitiesClassTitle>
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      <planAdoptionDates>
        <planAdoptionDate>08/11/2022</planAdoptionDate>
      </planAdoptionDates>
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144
0001834465
XXXXXXXX
LIVE
0001827090
Certara, Inc.
001-39799
100 OVERLOOK CENTER, SUITE 101
PRINCETON
NJ
08540
(609) 716-7900
Traynor Richard M.
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
5000
104100.00
159831701
05/11/2023
NASDAQ
Common
12/10/2020
Pre-IPO
Issuer
N
5000
12/10/2020
Cash
N
RICHARD TRAYNOR
100 Overlook Center
Suite 101
Princeton
NJ
08540
Common
03/06/2023
10000
214500.00
RICHARD TRAYNOR
100 Overlook Center
Suite 101
Princeton
NJ
08540
Common
04/14/2023
5000
118300.00
05/11/2023
08/11/2022
/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Richard Traynor