As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Ducommun Inc. The largest reported stake is State Street Corporation's, at 6.3%. 8 filings are on record since October 9, 2025 (Schedule 13G, August 7, 2026).
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Key facts
- · Reporting person: BlackRock Portfolio Management LLC · Sole voting: 702,261 · Shared voting: 0 · Sole dispositive: 799,271 · Shared dispositive: 0 · SCHEDULE 13G, 2026-10-27
- · Reporting person: State Street Corporation · Sole voting: 0 · Shared voting: 904,931 · Sole dispositive: 0 · Shared dispositive: 945,113 · SCHEDULE 13G, 2026-08-07
- · Reporting person: Fmr LLC · Sole voting: 770,484 · Shared voting: 0 · Sole dispositive: 776,201 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-06
- · Holder: State Street Corporation · Percent: 5.2% · SCHEDULE 13G
- · Holder: Dimensional Fund Advisors LP · Percent: 3.4% · SCHEDULE 13G/A
Ducommun Inc has 8 Schedule 13D or 13G filings on record since 2025-10-09. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| State Street Corporation | 6.3% | 945,113 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 |
| BlackRock Portfolio Management LLC | 5.3% | 799,271 | SCHEDULE 13G, 2026-10-27 | 2026-09-30 |
| Fmr LLC | 5.1% | 776,201 | SCHEDULE 13G, 2026-08-06 | 2026-06-30 |
| Dimensional Fund Advisors LP | 3.4% | 512,167 | SCHEDULE 13G/A, 2026-04-09 | 2026-03-31 |
| Gamco Investors, Inc. Et Al | 3.2% | 200 | SCHEDULE 13D/A, 2026-03-10 | 2026-03-09 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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Keep reading
More on Ducommun Inc and the records around it.
Ducommun Inc elsewhere on the record
Companies that share a holder
- GAMCO INVESTORS, INC. ET AL also filed stake reports on 45 other companies: WESTWOOD HOLDINGS GROUP INC (Nov 2026), NATHANS FAMOUS, INC. (Oct 2026), BEASLEY BROADCAST GROUP INC (Oct 2026)
- BlackRock Portfolio Management LLC also filed stake reports on 118 other companies: AMERISAFE INC (Nov 2026), BlackRock ETF Trust (Nov 2026), iShares J.P. Morgan EM Local Currency Bond ETF (Nov 2026)
- STATE STREET CORPORATION also filed stake reports on 343 other companies: TRADE DESK INC/THE (Oct 2026), CENTRUS ENERGY CORP (Sep 2026), ACADIA PHARMACEUTICALS INC (Aug 2026)
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What the Full Report on Ducommun Inc covers
The Short Answer
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What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| State Street Corporation | 0 | 904,931 | 0 | 945,113 | SCHEDULE 13G, 2026-08-07 |
| BlackRock Portfolio Management LLC | 702,261 | 0 | 799,271 | 0 | SCHEDULE 13G, 2026-10-27 |
| Fmr LLC | 770,484 | 0 | 776,201 | 0 | SCHEDULE 13G, 2026-08-06 |
| Abigail P. Johnson | 0 | 0 | 776,201 | 0 | SCHEDULE 13G, 2026-08-06 |
The latest filing identifies Ducommun Inc by CUSIP 264147109 and gives its principal executive office as 600 ANTON BOULEVARD SUITE 1100, COSTA MESA, CA 92626 (SCHEDULE 13G, 2026-10-27).
Purpose of Transaction (Item 4)
Gamco Investors, Inc. Et Al
The Reporting Persons file the long form Schedule 13D pursuant to Section 13d-1 of the Securities Exchange Act of 1934 (the "Act") even though they may be technically eligible to file the short form Schedule G. Because the Reporting Persons may regularly communicate with the Issuer's management, filing the Schedule 13D ensures that these conversations are compliant with the reporting obligations under the Exchange Act.Item 4 of the SCHEDULE 13D/A filed 2026-03-10
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-10-09 | Dimensional Fund Advisors LP | 5.8% | SCHEDULE 13G/A |
| 2026-03-10 | Gamco Investors, Inc. Et Al | 3.2% | SCHEDULE 13D/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-09 | Dimensional Fund Advisors LP | 3.4% | SCHEDULE 13G/A |
| 2026-05-12 | State Street Corporation | 5.2% | SCHEDULE 13G |
| 2026-08-06 | Fmr LLC | 5.1% | SCHEDULE 13G |
| 2026-08-07 | State Street Corporation | 6.3% | SCHEDULE 13G |
| 2026-10-27 | BlackRock Portfolio Management LLC | 5.3% | SCHEDULE 13G |
Questions about who owns Ducommun Inc
Who owns Ducommun Inc?
On this page, 3 holders' latest ownership filings report 5% or more of Ducommun Inc: State Street Corporation (6.3%, Schedule 13G, filed 2026-08-07), BlackRock Portfolio Management LLC (5.3%, Schedule 13G, filed 2026-10-27) and Fmr LLC (5.1%, Schedule 13G, filed 2026-08-06).
Who are the largest shareholders of Ducommun Inc?
By the share each holder's latest filing reports, the largest holders of Ducommun Inc on this page are State Street Corporation (6.3%), BlackRock Portfolio Management LLC (5.3%) and Fmr LLC (5.1%).
When did State Street Corporation buy into Ducommun Inc?
The filings give report dates, not purchase dates. The earliest filing from State Street Corporation on this page is the Schedule 13G, filed 2026-05-12, reporting 5.2%; its latest, Schedule 13G filed 2026-08-07, reports 6.3%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 8 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Ducommun Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| May 4, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.