Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
GAMCO INVESTORS, INC. ET AL - 09 Mar 2026 SCHEDULE 13D/A Report for DUCOMMUN INC /DE/ Common Stock (DCO)
- Filing manager
- GAMCO INVESTORS, INC. ET AL
- Reporting owner
- GAMCO Asset Management Inc.
- Security
- DUCOMMUN INC /DE/ Common Stock
- Beneficially owned shares
- 471,586 shares
- Large-stake signal
-
Ownership
3.2%Beneficial ownership of this reported class.
Shares
471,586 sharesShares beneficially owned as disclosed.
Event date
09 Mar 2026Date tied to the ownership event or amendment.
Accepted by SEC
10 Mar 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 3.2%
- Symbol
- DCO
- Shares outstanding
- 14,737,063 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 10 Mar 2026, 16:03:34 UTC
- Event date
- 09 Mar 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
GAMCO INVESTORS, INC. ET AL disclosed 3.2% ownership in DUCOMMUN INC /DE/ Common Stock (DCO) on 09 Mar 2026.
Key facts
- GAMCO INVESTORS, INC. ET AL filed SCHEDULE 13D/A for DUCOMMUN INC /DE/ Common Stock (DCO).
- Disclosed ownership: 3.2%.
- Date of event: 09 Mar 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 10 Mar 2026, 16:03.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (8)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| GAMCO INVESTORS, INC. ET AL | 0% | 200 | 200 | 0 | PETER D. GOLDSTEIN | CHIEF LEGAL OFFICER | 0000807249 |
| GABELLI FUNDS LLC | 0.7% | 100,670 | 100,670 | 0 | DAVID GOLDMAN | GENERAL COUNSEL | 0001081407 |
| GAMCO Asset Management Inc. | 3.2% | 471,586 | 463,286 | 0 | DOUGLAS R. JAMIESON | PRESIDENT | 0001460612 |
| GABELLI FOUNDATION, INC. | 0% | 3,800 | 3,800 | 0 | DAVID GOLDMAN | ATTORNEY-IN-FACT | |
| Teton Advisors, LLC | 0.2% | 23,700 | 23,700 | 0 | DAVID GOLDMAN | COUNSEL | 0002086025 |
| GGCP, INC. | 0% | 0 | 0 | 0 | DAVID GOLDMAN | ATTORNEY-IN-FACT | 0001238894 |
| Associated Capital Group, Inc. | 0% | 0 | 0 | 0 | PETER D. GOLDSTEIN | CHIEF LEGAL OFFICER | 0001642122 |
| GABELLI MARIO J | 0% | 0 | 0 | 0 | DAVID GOLDMAN | ATTORNEY-IN-FACT | 0001185533 |
CIK / CUSIP context first