Form 4 for DCO DUCOMMUN INC /DE/
Accepted 2026-08-13 16:55:14 ET · period of report 2026-08-11 · accession 0001193125-26-349516 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-13 16:55 | 2026-08-11 | DCO | Oswald Stephen G | COB, Pres, CEO, Dir | M - OptEx | $32.90 | +15.0K | 400.9K | +4% | +$493.5K |
| D | 2026-08-13 16:55 | 2026-08-11 | DCO | Oswald Stephen G | COB, Pres, CEO, Dir | F - Tax | $194.85 | -9,234 | 391.6K | -2% | -$1.80M |
| D | 2026-08-13 16:55 | 2026-08-12 | DCO | Oswald Stephen G | COB, Pres, CEO, Dir | S - Sale+OE | $201.15 | -5,766 | 385.9K | -1% | -$1.16M |
| D | 2026-08-13 16:55 | 2026-08-12 | DCO | Oswald Stephen G | COB, Pres, CEO, Dir | G - Gift | $0.00 | -2,244 | 383.6K | -0.6% | $0 |
| D | 2026-08-13 16:55 | 2026-08-11 | DCO | Oswald Stephen G | COB, Pres, CEO, Dir | M - OptEx | $0.00 | -15.0K | 17.5K | -46% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-11 | M | A | 15,000 | $32.90 | 400,875 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-11 | F | D | 9,234 | $194.85 | 391,641 | D | — | — | |
| 3 | Common | Common Stock | 2026-08-12 | S | D | 5,766 | $201.15 | 385,875 | D | — | — | (F1) This transaction was executed in multiple trades at prices ranging from $200.15 to $202.08. 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 prices at which the transaction was effectuated. |
| 4 | Common | Common Stock | 2026-08-12 | G | D | 2,244 | $0.00 | 383,631 | D | — | — | |
| 5 | Derivative | Option - Right to Buy | 2026-08-11 | M | D | 15,000 | $0.00 | 17,500 | D | $32.90 · 2021-05-14 to 2028-05-14 | 15,000 Common Stock | (F2) This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan. (F3) This option vested in one-third increments on each of May 14, 2019, 2020 and 2021. |