Key facts
- This page summarizes Suman B. Mookerji's Form 4 filing for DUCOMMUN INC /DE/ (DCO).
- 8 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 06 Mar 2026, 16:54.
Suman B. Mookerji - 04 Mar 2026 Form 4 Insider Report for DUCOMMUN INC /DE/ (DCO)
- Reporting relationship
- Sr. V.P., C.F.O.
- Issuer ticker
- DCO
- Reported as of
- 04 Mar 2026
- Net transaction value
- -$1,974,095
- SEC form
- 4
- Accepted by SEC
- 06 Mar 2026, 16:54:40 UTC
- Prior SEC filing
- 29 Aug 2025
- Next SEC filing
- 10 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- Suman B. Mookerji
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Suman B. Mookerji filed Form 4 for DUCOMMUN INC /DE/ (DCO) on 06 Mar 2026.
Change
- Previous filing in this sequence was filed on 29 Aug 2025.
- Current net transaction value: -$1,974,095.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001975924
Primary reporting owner
Mookerji Suman B.
- Relationship
- Sr. V.P., C.F.O.
- Address
- 600 ANTON BLVD., SUITE 1100, COSTA MESA
- Signature
- Suman B. Mookerji
- Signature date
- 06 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
DCO
transaction
Common Stock
Award
- Transaction value
- Shares
- +14,315
- Change %
- +34%
- Price
- $0.000000*
- Shares after
- 56,074
- Date
- 04 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F2
DCO
transaction
Common Stock
Tax liability
- Transaction value
- Shares
- -7,695
- Change %
- -14%
- Price
- $139.45*
- Shares after
- 48,379
- Date
- 04 Mar 2026
- Ownership
- Direct
- Footnotes
- F3
DCO
transaction
Common Stock
Award
- Transaction value
- Shares
- +3,361
- Change %
- +6.9%
- Price
- $0.000000*
- Shares after
- 51,740
- Date
- 04 Mar 2026
- Ownership
- Direct
DCO
transaction
Common Stock
Tax liability
- Transaction value
- Shares
- -1,361
- Change %
- -2.6%
- Price
- $130.19*
- Shares after
- 50,379
- Date
- 05 Mar 2026
- Ownership
- Direct
- Footnotes
- F4
DCO
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +4,700
- Change %
- +9.3%
- Price
- $42.25*
- Shares after
- 55,079
- Date
- 05 Mar 2026
- Ownership
- Direct
DCO
transaction
Common Stock
Tax liability
- Transaction value
- Shares
- -3,186
- Change %
- -5.8%
- Price
- $139.45*
- Shares after
- 51,893
- Date
- 05 Mar 2026
- Ownership
- Direct
DCO
transaction
Common Stock
Sale
- Transaction value
- $1,974,095
- Shares
- -14,709
- Change %
- -28%
- Price
- $134.21
- Shares after
- 37,184
- Date
- 04 Mar 2026
- Ownership
- Direct
- Footnotes
- F5
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
DCO
transaction
Derivative
Option - Right to Purchase
Options Exercise
- Transaction value
- Shares
- +4,700
- Change %
- +10%
- Price
- $0.000000*
- Shares after
- 51,893
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,514
- Exercise price
- $42.25
- Footnotes
- F6, F7
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 7 footnotes
Footnote F1
Acquired upon the settlement of performance stock units granted on May 8, 2023 under the Ducommun Incorporated Stock Incentive Plan as a result of the satisfaction of performance metrics underlying the award.
Footnote F2
Granted as compensation for services.
Footnote F3
Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on March 4, 2026, of 14,315 performance stock units as described in footnote (1) above.
Footnote F4
Represents a reduction of shares to satisfy the tax withholding obligations of the Issuer with respect to the vesting, on March 5, 2026, of 2,532 restricted stock units.
Footnote F5
This transaction was executed in multiple trades at prices ranging from $127.00 to $138.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder, full information regarding the number of shares and the prices at which the transaction was effectuated.
Footnote F6
This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
Footnote F7
This option vested in one-third increments on each of June 17, 2020, 2021 and 2022.