| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BALDRIDGE RICHARD A | Director | C/O DUCOMMUN INCORPORATED, 600 ANTON BLVD., # 1100, COSTA MESA | Richard A. Baldridge | 12 Mar 2026 | 0001229083 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DCO | Common Stock | Sale | $1,365,865 | -10,440 | -34% | $130.83 | 20,100 | 10 Mar 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This transaction was executed in multiple trades at prices ranging from $130.00 to $132.41. 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. |