As of May 23, 2026, the three largest insider holders of DCO are Stephen G Oswald (Chairman, President Ceo, 419.38K shares), Robert C Ducommun (Director, 409.90K shares), Jerry L Redondo (S.V.P., Elec. Struc. Systems, 71.03K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert C Ducommun | - | 409,900 | 0 | 06 Dec, 2024 |
| Richard A Baldridge | - | 20,100 | 0 | 12 Mar, 2026 |
| Dean M Flatt | - | 41,440 | 0 | 15 May, 2024 |
| Daniel G. Korte | - | 0 | 3,111 | 09 May, 2025 |
| Samara A Strycker | - | 9,500 | 0 | 09 May, 2025 |
| Jerry L Redondo | S.V.P., Elec. Struc. Systems | 71,033 | 0 | 06 Mar, 2026 |
| Sheila G. Kramer | - | 10,500 | 0 | 09 May, 2025 |
| Christopher D. Wampler | Vp, Cfo, Controller, Treasurer | 27,708 | 0 | 24 Feb, 2023 |
| Stephen G Oswald | Chairman, President Ceo | 419,384 | 0 | 06 Mar, 2026 |
| Daniel L. Boehle | - | 3,111 | 0 | 09 May, 2025 |
| Shirley Drazba | - | 16,940 | 0 | 09 May, 2025 |
| Rajiv A. Tata | V.P., G.C. Corp. Secretary | 37,131 | 0 | 06 Mar, 2026 |
| Laureen S. Gonzalez | V.P., Chro | 13,037 | 0 | 06 Mar, 2026 |
| Suman B. Mookerji | S.V.P., Cfo | 29,393 | 0 | 10 Mar, 2026 |
| David B. Carter | - | 5,700 | 0 | 09 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Mar, 2026 | Richard A Baldridge | Common Stock | D | 10,440 | $130.83 | 20,100 | D | S |
| 10 Mar, 2026 | Suman B. Mookerji | Common Stock | D | 7,791 | $131.90 | 29,393 | D | S |
| 10 Mar, 2026 | Suman B. Mookerji | Common Stock | D | 7,791 | $131.90 | 29,393 | D | S |
| 04 Mar, 2026 | Stephen G Oswald | Common Stock | A | 75,503 | $0.00 | 451,439 | D | A |
| 04 Mar, 2026 | Jerry L Redondo | Common Stock | A | 9,261 | $0.00 | 74,607 | D | A |
| 04 Mar, 2026 | Laureen S. Gonzalez | Common Stock | A | 3,864 | $0.00 | 14,603 | D | A |
| 04 Mar, 2026 | Stephen G Oswald | Common Stock | A | 75,503 | $0.00 | 451,439 | D | A |
| 04 Mar, 2026 | Rajiv A. Tata | Common Stock | A | 7,622 | $0.00 | 37,005 | D | A |
| 04 Mar, 2026 | Jerry L Redondo | Common Stock | A | 9,261 | $0.00 | 74,607 | D | A |
| 04 Mar, 2026 | Suman B. Mookerji | Common Stock | A | 14,315 | $0.00 | 56,074 | D | A |
| 04 Mar, 2026 | Rajiv A. Tata | Common Stock | A | 7,622 | $0.00 | 37,005 | D | A |
| 04 Mar, 2026 | Laureen S. Gonzalez | Common Stock | A | 3,864 | $0.00 | 14,603 | D | A |
| 04 Mar, 2026 | Suman B. Mookerji | Common Stock | A | 14,315 | $0.00 | 56,074 | D | A |
| 04 Mar, 2026 | Rajiv A. Tata | Common Stock | D | 4,097 | $139.45 | 32,908 | D | F |
| 04 Mar, 2026 | Jerry L Redondo | Common Stock | D | 4,978 | $139.45 | 69,629 | D | F |
| 04 Mar, 2026 | Stephen G Oswald | Common Stock | D | 40,583 | $139.45 | 410,856 | D | F |
| 04 Mar, 2026 | Suman B. Mookerji | Common Stock | D | 7,695 | $139.45 | 48,379 | D | F |
| 04 Mar, 2026 | Laureen S. Gonzalez | Common Stock | D | 2,077 | $139.45 | 12,526 | D | F |
| 04 Mar, 2026 | Laureen S. Gonzalez | Common Stock | D | 2,077 | $139.45 | 12,526 | D | F |
| 04 Mar, 2026 | Rajiv A. Tata | Common Stock | D | 4,097 | $139.45 | 32,908 | D | F |