DUCOMMUN INC DEL DCO
COM · Common Stock · CUSIP 264147109
US-American mechanical engineering company
- SectorIndustrials
- IndustryAircraft Parts & Auxiliary Equipment, NEC
- HeadquartersCosta Mesa, CA
- Founded1849
- Websiteducommun.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($717.6k this quarter). Holder counts are more reliable. Shares outstanding: 14.9m as of 2025-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $82.79. Options: 2 managers hold calls ($206.6k notional), 2 hold puts ($8.0k).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 114 |
| Q4 2022 | 127 |
| Q1 2023 | 135 |
| Q2 2023 | 136 |
| Q3 2023 | 123 |
| Q4 2023 | 133 |
| Q1 2024 | 130 |
| Q2 2024 | 137 |
| Q3 2024 | 149 |
| Q4 2024 | 172 |
| Q1 2025 | 173 |
| Q2 2025 | 180 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 62 | 60 |
| Q4 2023 | 68 | 55 |
| Q1 2024 | 56 | 54 |
| Q2 2024 | 65 | 60 |
| Q3 2024 | 70 | 61 |
| Q4 2024 | 107 | 48 |
| Q1 2025 | 78 | 80 |
| Q2 2025 | 92 | 83 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $111.9k | $46.1k | 0.41 |
| Q4 2024 | $57.3k | $12.7k | 0.22 |
| Q1 2025 | $11.0k | $0 | 0.00 |
| Q2 2025 | $206.6k | $8.0k | 0.04 |
Biggest buyers
| ALLIANCEBERNSTEIN L.P. | Added | +288.5k |
| ROYAL BANK OF CANADA | Added | +264.1k |
| Ophir Asset Management Pty Ltd | New | +242.0k |
| BROWN ADVISORY INC | New | +206.0k |
| CSM Advisors, LLC | New | +85.1k |
| Verition Fund Management LLC | Added | +57.1k |
| Allspring Global Investments Holdings, LLC | New | +52.3k |
| CITADEL ADVISORS LLC | New | +51.8k |
| Roubaix Capital, LLC | New | +51.1k |
| KENNEDY CAPITAL MANAGEMENT LLC | Added | +50.0k |
Biggest sellers
| STATE STREET CORP | Reduced | -102.1k |
| TUDOR INVESTMENT CORP ET AL | Reduced | -89.5k |
| RDST Capital LLC | Reduced | -60.0k |
| BlackRock, Inc. | Reduced | -54.6k |
| Qube Research & Technologies Ltd | Reduced | -53.6k |
| Vident Advisory, LLC | Sold out | -47.7k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -46.8k |
| ExodusPoint Capital Management, LP | Sold out | -44.5k |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -43.9k |
| INGALLS & SNYDER LLC | Reduced | -42.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $206.6k2.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SIMPLEX TRADING, LLC | New | $8.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-24 | 8.1% |
| STATE STREET CORP 13G · institution +1.1 pts · filed 2026-08-07 | 6.3% |
| BlackRock Portfolio Management LLC 13G · institution new · filed 2026-10-27 | 5.3% |
| FMR LLC 13G · institution new · filed 2026-08-06 | 5.1% |
Fell to 5% or below in the last year: DIMENSIONAL FUND ADVISORS LP (3.4%, 2026-04-09), VANGUARD GROUP INC (0.0%, 2026-03-26), GAMCO INVESTORS, INC. ET AL (3.2%, 2026-03-10)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 1 | $154.7k | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $116.5k | — |
| Q3 2024 | 0 | — | 2 | $329.3k | — |
| Q4 2024 | 0 | — | 1 | $69.5k | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.8m $149.7m | Reduced -54.6k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 4.02% of their portfolio | 997.5k $82.4m | Reduced -19.7k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 966.6k $79.9m | Reduced -23.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 806.2k $66.6m | Added +38.8k |
| GAMCO INVESTORS, INC. ET AL 0.51% of their portfolio | 626.6k $51.8m | Added +38.3k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 605.3k $50.0m | Added +264.1k |
| RDST Capital LLC 4.70% of their portfolio | 568.8k $47.0m | Reduced -60.0k |
| STATE STREET CORP 0.00% of their portfolio | 486.8k $40.2m | Reduced -102.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 325.1k $26.9m | Added +5.7k |
| GW&K Investment Management, LLC 0.24% of their portfolio | 322.8k $26.7m | Added +16.4k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 303.0k $25.0m | Added +288.5k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 245.7k $20.3m | Reduced -7.1k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.48% of their portfolio | 242.7k $20.1m | Added +50.0k |
| Ophir Asset Management Pty Ltd 3.52% of their portfolio | 242.0k $22.2m | New |
| First Eagle Investment Management, LLC 0.04% of their portfolio | 217.9k $18.0m | Reduced -30.7k |
| BROWN ADVISORY INC 0.02% of their portfolio | 206.0k $17.0m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 198.9k $16.4m | Added +9.9k |
| Meros Investment Management, LP 6.77% of their portfolio | 172.7k $14.3m | Reduced -17.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 161.2k $13.3m | Added +15.1k |
| Diamond Hill Capital Management, LLC (Investment Advisor) 0.06% of their portfolio | 156.2k $12.9m | Reduced -17.1k |
| ROYCE & ASSOCIATES LP 0.13% of their portfolio | 149.6k $12.4m | Reduced -35.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 139.2k $11.5m | Added +12.8k |
| Invesco Ltd. 0.00% of their portfolio | 128.7k $10.6m | Reduced -5.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 122.6k $10.1m | Reduced -2.2k |
| Bragg Financial Advisors, Inc 0.35% of their portfolio | 119.7k $9.9m | Added +345 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 118.2k $9.8m | Added +709 |
| Nuveen, LLC 0.00% of their portfolio | 115.2k $9.5m | Added +27.4k |
| Phocas Financial Corp. 1.34% of their portfolio | 112.6k $9.3m | Added +16 |
| Gibson Capital, LLC 1.72% of their portfolio | 105.2k $8.7m | Reduced -1.0k |
| GABELLI FUNDS LLC 0.06% of their portfolio | 103.0k $8.5m | Added +650 |
| OBERWEIS ASSET MANAGEMENT INC/ 0.34% of their portfolio | 95.7k $7.9m | Unchanged |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 93.7k $7.7m | Added +1.2k |
| Verition Fund Management LLC 0.04% of their portfolio | 88.1k $7.3m | Added +57.1k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 87.3k $7.2m | Reduced -12.9k |
| Teton Advisors, Inc. 4.35% of their portfolio | 86.5k $7.1m | Reduced -23.7k |
| CSM Advisors, LLC 0.21% of their portfolio | 85.1k $7.0m | New |
| FMR LLC 0.00% of their portfolio | 84.2k $7.0m | Added +3.4k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 71.5k $5.9m | Added +5.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 65.1k $5.4m | Reduced -14.7k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 63.4k $5.2m | Reduced -11.2k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 61.7k $5.1m | Reduced -53.6k |
| MORGAN STANLEY 0.00% of their portfolio | 59.7k $4.9m | Added +15.8k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.25% of their portfolio | 56.3k $4.6m | Reduced -4.8k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 54.2k $4.5m | Added +16.2k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 52.3k $4.3m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 51.8k $4.3m | New |
| Roubaix Capital, LLC 2.03% of their portfolio | 51.1k $4.2m | New |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 49.2k $4.1m | Reduced -6.3k |
| LPL Financial LLC 0.00% of their portfolio | 48.7k $4.0m | Reduced -38.3k |
| UBS Group AG 0.00% of their portfolio | 48.7k $4.0m | Added +6.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 46.1k $3.8m | Added +17.7k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 45.7k $3.8m | Added +1.7k |
| BARCLAYS PLC 0.00% of their portfolio | 43.5k $3.6m | Added +7.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 42.2k $3.5m | Added +1.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 42.0k $3.5m | Reduced -16.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 39.6k $3.3m | Reduced -43.9k |
| MARTINGALE ASSET MANAGEMENT L P 0.07% of their portfolio | 36.3k $3.0m | Added +989 |
| Informed Momentum Co LLC 0.45% of their portfolio | 35.7k $3.0m | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 34.2k $2.8m | Added +2.5k |
| AMH Equity Ltd 4.01% of their portfolio | 33.0k $2.7m | Added +6.0k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 32.3k $2.7m | Added +2.2k |
| Oliver Luxxe Assets LLC 0.46% of their portfolio | 31.5k $2.6m | Added +267 |
| Legal & General Group Plc 0.00% of their portfolio | 30.6k $2.5m | Added +5.6k |
| Annex Advisory Services, LLC 0.06% of their portfolio | 29.7k $2.5m | Reduced -6.0k |
| Hennion & Walsh Asset Management, Inc. 0.09% of their portfolio | 28.0k $2.3m | Added +8.7k |
| Orchard Capital Management, LLC 2.50% of their portfolio | 27.4k $2.3m | Reduced -41.0k |
| INGALLS & SNYDER LLC 0.08% of their portfolio | 27.0k $2.2m | Reduced -42.0k |
| Swiss National Bank 0.00% of their portfolio | 27.0k $2.2m | Added +1.2k |
| Pathstone Holdings, LLC 0.01% of their portfolio | 26.9k $2.2m | Reduced -1.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 22.6k $1.9m | Added +4.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 22.5k $1.9m | Reduced -1.4k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 21.8k $1.8m | Reduced -13.1k |
| ALGERT GLOBAL LLC 0.04% of their portfolio | 21.0k $1.7m | Unchanged |
| North Star Investment Management Corp. 0.12% of their portfolio | 20.8k $1.7m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 20.0k $1.7m | Unchanged |
| Advisors Asset Management, Inc. 0.03% of their portfolio | 19.4k $1.6m | Added +3.8k |
| VIRTUS ADVISERS, LLC 0.87% of their portfolio | 17.3k $1.4m | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 16.6k $1.4m | Reduced -16.4k |
| GSA CAPITAL PARTNERS LLP 0.09% of their portfolio | 16.1k $1.3m | Reduced -8.6k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 15.8k $1.3m | Reduced -2.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 15.6k $1.3m | Reduced -140 |
| HighTower Advisors, LLC 0.00% of their portfolio | 14.9k $1.2m | Added +2.4k |
| HANTZ FINANCIAL SERVICES, INC. 0.02% of their portfolio | 13.4k $1.1m | Not comparable |
| CITIGROUP INC 0.00% of their portfolio | 13.1k $1.1m | Reduced -8.1k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 13.0k $1.1m | Added +119 |
| HRT FINANCIAL LP 0.01% of their portfolio | 12.9k $1.1m | New |
| Man Group plc 0.00% of their portfolio | 11.5k $953.7k | New |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 11.5k $948.8k | Reduced -15.4k |
| QUEST INVESTMENT MANAGEMENT LLC 0.10% of their portfolio | 11.4k $942.7k | New |
| Jump Financial, LLC 0.01% of their portfolio | 10.5k $870.3k | Added +1.8k |
| Cerity Partners LLC 0.00% of their portfolio | 9.9k $822.0k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 9.9k $819.1k | Reduced -1.3k |
| Quantbot Technologies LP 0.02% of their portfolio | 9.4k $772.7k | Added +6.0k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 8.5k $702.7k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 8.0k $664.8k | Added +37 |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 7.7k $639.6k | Reduced -46.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 7.6k $625.1k | Reduced -485 |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 6.9k $570.2k | Reduced -3.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 6.9k $570.0k | Added +950 |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 6.7k $552.2k | New |