Company · Ownership research

DUCOMMUN INC /DE/ DCO

CIK 0000030305

Form 4 transactions dated Sep 1, 2023 to Sep 26, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 62 rows; the complete set is available through the API.

Insider filings on file run through 2026-08-19.

Insider purchases & sales

Purchased: $0.00
Sold: $8.46M

Sep 1, 2023 – Aug 19, 2026
Available records · partial months are marked ·

20269 of 9 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-08-18	Oswald Stephen G Chairman, President & CEO · Director	Sale	$509.88K 2,500 shares sold	0.65% sold Direct holding	▾
2026-08-12	Oswald Stephen G Chairman, President & CEO · Director	Sale	$1.16M 5,766 shares sold	1.47% sold Direct holding	▾
2026-05-28	Gonzalez Laureen S. V.P., CHRO	Sale	$89.52K 589 shares sold	5.01% sold Direct holding	▾
2026-05-20	Mookerji Suman B. Sr. V.P., C.F.O.	Sale	$219.53K 1,514 shares sold	5.55% sold Direct holding	▾
2026-05-20	Tata Rajiv A. V.P., G.C. & Corp. Secretary	Sale	$233.74K 1,612 shares sold	4.63% sold Direct holding	▾
2026-05-14	Redondo Jerry L S.V.P., Elec. & Struc. Systems	Sale	$877.07K 5,682 shares sold	8.39% sold Direct holding	▾
2026-03-10	BALDRIDGE RICHARD A Director	Sale	$1.37M 10,440 shares sold	34.18% sold Direct holding	▾
2026-03-10	Mookerji Suman B. S.V.P., CFO	Sale	$1.03M 7,791 shares sold	20.95% sold Direct holding	▾
2026-03-04	Mookerji Suman B. Sr. V.P., C.F.O.	Sale	$1.97M 14,709 shares sold	Unavailable Direct holding	▾

Showing 9 / 9 record groups in 2026. The complete set is available through the API.

DUCOMMUN INC /DE/ · DCO

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 9 of 9 purchase / sale groups and 30 of 62 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"DCO","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.