Ducommun Incorporated
Ownership
Ownership Structure
Who owns Ducommun Incorporated (DCO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.1% of the shares are freely tradable; institutional investors hold 95.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 11.72 | 1,769,223 | +5.1 | 03/31/2026 |
| State Street Corp | 5.20 | 785,541 | +17.1 | 03/31/2026 |
| Paradigm Capital Management, Inc. | 5.10 | 770,500 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.06 | 612,941 | +0.0 | 03/31/2026 |
| Gamco Investors, Inc. Et Al | 2.83 | 427,832 | -4.8 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 2.41 | 363,836 | -29.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Stt Strt® SPDR® S&P® Arspc & Dfnc ETF | 3.29 | 497,034 | -0.1 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 455,788 | +0.4 | 07/31/2026 |
| First Trust RBA Amer Indl RenaisTM ETF | 2.98 | 450,463 | +0.1 | 08/31/2026 |
| VanEck Space Innovators ETF A USD Acc | 2.87 | 433,423 | -0.2 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Oswald Stephen G | Chairman, President & CEO | 383,864 | 63,836,583 $ | Aug 18, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | Oswald Stephen G | Chairman, President & CEO | Sell | 2,500 | 203.95 | 509,875 |
| Aug 17, 2026 | Oswald Stephen G | Chairman, President & CEO | Other | 6,111 | 206.98 | 1,264,855 |
| Aug 17, 2026 | Oswald Stephen G | Chairman, President & CEO | Other | 10,000 | 32.90 | 329,000 |
| Aug 12, 2026 | Oswald Stephen G | Chairman, President & CEO | Other | 2,244 | 0.00 | – |
| Aug 12, 2026 | Oswald Stephen G | Chairman, President & CEO | Sell | 5,766 | 201.15 | 1,159,831 |
| Aug 11, 2026 | Oswald Stephen G | Chairman, President & CEO | Other | 9,234 | 194.85 | 1,799,245 |
| Aug 11, 2026 | Oswald Stephen G | Chairman, President & CEO | Other | 15,000 | 32.90 | 493,500 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.