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      <issuerAddress>
        <com:street1>5818 EL CAMINO REAL</com:street1>
        <com:city>CARLSBAD</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>92008</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>760-431-9286</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MCGINNIS KAREN K</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
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    <securitiesInformation>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>THE CHARLES SCHWAB CORPORATION</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>3963</noOfUnitsSold>
      <aggregateMarketValue>48001.00</aggregateMarketValue>
      <noOfUnitsOutstanding>146172703</noOfUnitsOutstanding>
      <approxSaleDate>06/11/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>06/16/2021</acquiredDate>
      <natureOfAcquisitionTransaction>VESTING RSU's</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
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      <amountOfSecuritiesAcquired>3963</amountOfSecuritiesAcquired>
      <paymentDate>06/16/2021</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
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    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>FULL ACCOUNT TITLE: R MCGINNIS &amp; K MCGINNIS TTEE, MCGINNIS FAMILY TRUST.</remarks>
    <noticeSignature>
      <noticeDate>06/11/2025</noticeDate>
      <planAdoptionDates>
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144
0001188264
XXXXXXXX
LIVE
0001350653
Alphatec Holdings, Inc.
000-52024
5818 EL CAMINO REAL
CARLSBAD
CA
92008
760-431-9286
MCGINNIS KAREN K
Director
COMMON
THE CHARLES SCHWAB CORPORATION
3000 Schwab Way
Westlake
TX
76262
3963
48001.00
146172703
06/11/2025
NASDAQ
COMMON
06/16/2021
VESTING RSU's
ISSUER
N
3963
06/16/2021
N/A
Y
FULL ACCOUNT TITLE: R MCGINNIS & K MCGINNIS TTEE, MCGINNIS FAMILY TRUST.
06/11/2025
12/02/2024
KAREN K. MCGINNIS