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Public ownership evidence

Ducommun Incorporated (DCO) Ownership Disclosures

Read DCO insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-08-202026-08-18Oswald Stephen GS2,500Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-18 and its public availability date is 2026-08-20. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001193125-26-357054 ↗SEC 0001193125-26-349759 ↗SEC 0001193125-26-349516 ↗

Recent Form 4 activity

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2026-08-202026-08-18Oswald Stephen GS2,500Not reported
2026-08-142026-08-12Oswald Stephen GS5,766Not reported
2026-08-142026-08-12Oswald Stephen GS5,766Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Corient Private Wealth LP2026-06-302026-08-281,506$278,929None
Advisors Asset Management, Inc.2024-03-312026-08-278,387$430,253None
Advisors Asset Management, Inc.2025-03-312026-08-2715,570$903,527None
Advisors Asset Management, Inc.2023-06-302026-08-277,585$330,478None
Advisors Asset Management, Inc.2023-09-302026-08-278,580$373,316None
Advisors Asset Management, Inc.2023-03-312026-08-272,696$147,498None
Advisors Asset Management, Inc.2025-09-302026-08-2731,741$3,051,262None
Advisors Asset Management, Inc.2023-12-312026-08-278,427$438,710None
Advisors Asset Management, Inc.2025-06-302026-08-2519,388$1,602,030None
First Eagle Investment Management, LLC2026-06-302026-08-25176,376$32,666,599None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2515,433$2,858,346None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,858,346$15,433,000None
Advisors Asset Management, Inc.2024-09-302026-08-2212,972$853,947None
Advisors Asset Management, Inc.2024-06-302026-08-228,262$479,692None
Advisors Asset Management, Inc.2024-12-312026-08-2216,661$1,060,639None
Advisors Asset Management, Inc.2025-12-312026-08-2234,543$3,286,076None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-205,892$1,091,257None
Parvin Asset Management, LLC2026-06-302026-08-18110$20,373None
Corient Private Wealth LP2026-06-302026-08-181,506$278,929None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18179$33,153None
Graham Capital Management, L.P.2026-06-302026-08-151,291$239,106None
SEI INVESTMENTS CO2026-06-302026-08-1522,132$4,099,068None
SEI INVESTMENTS CO2026-06-302026-08-1545$8,340None
Advisors Asset Management, Inc.2026-06-302026-08-1553,230$9,858,728None
Rafferty Asset Management, LLC2026-06-302026-08-152,593$480,250None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-156,207$1,149,598None
Polymer Capital Management (US) LLC2026-06-302026-08-151,862$344,861None
Quarry LP2026-06-302026-08-1513$2,408None
Meros Investment Management, LP2026-06-302026-08-15118,423$21,933,124None
T. Rowe Price Investment Management, Inc.2026-06-302026-08-1594,150$17,438,000None
CSM Advisors, LLC2026-06-302026-08-1532,284$5,978,000None
Concentric Capital Strategies, LP2026-06-302026-08-159,377$1,736,714None
Ophir Asset Management Pty Ltd2026-06-302026-08-15139,600$25,855,316None
XTX Topco Ltd2026-06-302026-08-151,993$369,124None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15172,609$31,968,913None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15172,609$31,968,913None
ExodusPoint Capital Management, LP2026-06-302026-08-1529,591$5,480,549None
Diametric Capital, LP2026-06-302026-08-1510,000$1,852,100None
OSAIC HOLDINGS, INC.2026-06-302026-08-15262$48,522None
Squarepoint Ops LLC2026-06-302026-08-1513,973$2,587,939None
Trexquant Investment LP2026-06-302026-08-1585,513$15,837,863None
MetLife Investment Management, LLC2026-06-302026-08-158,211$1,520,759None
LMR Partners LLP2026-06-302026-08-156,615$1,225,164None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-156,325$1,171,453None
Legal & General Group Plc2026-06-302026-08-1514,197$2,629,427None
Legal & General Group Plc2026-06-302026-08-152,523$467,285None
Legal & General Group Plc2026-06-302026-08-151,365$252,812None
MOORE CAPITAL MANAGEMENT, LP2026-06-302026-08-15238,844$44,236,297None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-157,800$1,444,638Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-153,500$648,235Put

90-day public filing window, up to 50 source positions.

Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗First Eagle Investment Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.