InsiderTrades

Form 4/A for DCO DUCOMMUN INC /DE/

Accepted 2026-05-18 20:08:35 ET · period of report 2026-05-14 · accession 0001193125-26-229316 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DMA 2026-05-18 20:08 2026-05-14+ DCO Mookerji Suman B. SVP, CFO F - Tax $3,239.30 -6,022 27.3K -18% -$19.51M
DA 2026-05-18 20:08 2026-05-14 DCO Mookerji Suman B. SVP, CFO D - Sale to Iss — -1,259 24.6K -5% —
DA 2026-05-18 20:08 2026-05-15 DCO Mookerji Suman B. SVP, CFO M - OptEx $40.44 +7,500 32.1K +31% +$303.3K
DA 2026-05-18 20:08 2026-05-15 DCO Mookerji Suman B. SVP, CFO M - OptEx $0.00 +7,500 0 New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-14 F D 1,239 $15,159.00 25,825 D — — (F1) Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on May 14, 2026 of 2,498 restricted stock units.
2 Common Common Stock 2026-05-14 D D 1,259 — 24,566 D — — (F2) In connection with the operation of the Issuer's Second Amended and Restated Clawback Policy (the "Clawback Policy") with respect to the restatement and revision of the Issuer's previously issued financialstatements, as reported in the Issuer's Form 8-K filed on May 1, 2026, the Issuer determined that the Reporting Person would not have earned certain compensation had such compensation been determined basedon the restated financial statements. As a result, 2,498 restricted stock units that vested on May 14, 2026 were not delivered to the Reporting Person and 1,259 shares of the Issuer's common stock were returnedto the Issuer in accordance with the Issuer's Clawback Policy. (F2) In connection with the operation of the Issuer's Second Amended and Restated Clawback Policy (the "Clawback Policy") with respect to the restatement and revision of the Issuer's previously issued financialstatements, as reported in the Issuer's Form 8-K filed on May 1, 2026, the Issuer determined that the Reporting Person would not have earned certain compensation had such compensation been determined basedon the restated financial statements. As a result, 2,498 restricted stock units that vested on May 14, 2026 were not delivered to the Reporting Person and 1,259 shares of the Issuer's common stock were returnedto the Issuer in accordance with the Issuer's Clawback Policy.
3 Common Common Stock 2026-05-15 M A 7,500 $40.44 32,066 D — —
4 Common Common Stock 2026-05-15 F D 4,783 $151.59 27,283 D — — (F3) The number of shares withheld to satisfy the tax withholding obligations of the Issuer with respect to the exercise of 7,500 stock options on May 15, 2026 was inadvertently identified as 4,728 shares, which has been corrected above.
5 Derivative Option - Right to Buy 2026-05-15 M A 7,500 $0.00 0 D $40.44 · 2022-10-10 to 2029-10-10 7,500 Common Stock (F4) This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan. (F5) This option vested as to 2,500 shares on each of October 10, 2020, 2021 and 2022.