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      <issuerAddress>
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        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>92626</com:zipCode>
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      <issuerContactPhone>657-335-3665</issuerContactPhone>
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      <relationshipsToIssuer>
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        <relationshipToIssuer>Director</relationshipToIssuer>
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        <address>
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          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
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      <securitiesExchangeName>NYSE</securitiesExchangeName>
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      <isGiftTransaction>N</isGiftTransaction>
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          <com:stateOrCountry>CA</com:stateOrCountry>
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      <saleDate>09/19/2024</saleDate>
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    <remarks>Sale executed as Stephen G and Regina Oswald Foundation</remarks>
    <noticeSignature>
      <noticeDate>12/11/2024</noticeDate>
      <signature>Stephen G. Oswald</signature>
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144
0001695904
XXXXXXXX
LIVE
0000030305
DUCOMMUN INC /DE/
001-08174
600 ANTON BOULEVARD
SUITE 1100
COSTA MESA
CA
92626
657-335-3665
Oswald Stephen G
Officer
Director
Common
Charles Schwab Corp
3000 Schwab Way
Westlake
TX
76262
1500
93045.00
14779300
12/11/2024
NYSE
Common
03/24/2020
Equity Compensation
Issuer
N
1500
03/24/2020
Equity Compensation
N
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
09/12/2024
300
19170.00
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100,
Costa Mesa
CA
92626
Ducommun Incorporated
09/13/2024
500
32495.77
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100,,
Costa Mesa
CA
92626
Ducommun Incorporated
09/18/2024
250
16273.75
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100,
Costa Mesa
CA
92626
Ducommun Incorporated
09/19/2024
308
20295.66
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
11/13/2024
500
34225.00
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
11/13/2024
500
33986.97
Stephen G. and Regina Oswald Foundation
600 Anton Blvd, Suite 1100,
Costa Mesa
CA
92626
Ducommun Incorporated
11/14/2024
300
20373.33
Stephen G and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
11/22/2024
300
19904.94
Stephen G and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
11/27/2024
200
13218.02
Stephen G and Regina Oswald Foundation
600 Anton Blvd, Suite 1100
Costa Mesa
CA
92626
Ducommun Incorporated
12/10/2024
200
12287.00
Sale executed as Stephen G and Regina Oswald Foundation
12/11/2024
Stephen G. Oswald