A new Periodic Transaction Report filed under the STOCK Act shows a sale of Martin Marietta Materials, Inc. common stock (MLM) made on behalf of a dependent child of Hon. April McClain Delaney, a member of the U.S. House of Representatives. The transaction, dated August 25, 2026, was disclosed in a value range of between $250,001 and $500,000, according to the filing.
The STOCK Act requires members of Congress and their immediate family to publicly report trades of this size within a set window after execution. The filing does not include a stated reason for the sale, and the disclosure itself is a routine compliance requirement rather than an indication of any wrongdoing.
An Insider Sale Followed Days Later
What makes this filing notable is its timing relative to activity inside Martin Marietta Materials itself. Company insider Lyons Martin J sold MLM shares on August 31, 2026, in a transaction valued at $35,272. That sale came within roughly one week of the McClain Delaney dependent child’s disclosed sale, placing both transactions within the same 30-day window.
Whoisbuyingnow.com tracks these kinds of overlaps because they show how congressional trading disclosures and corporate insider filings sometimes cluster around the same stock in a short period of time. On its own, this proximity does not establish any connection between the two parties or any coordinated activity — insiders and members of Congress file separately, under different legal regimes, and for different reasons. It is simply a pattern worth noting for readers who follow MLM-related disclosures.
This is not the first time MLM has appeared in connection with the McClain Delaney household. Earlier coverage on this site examined a prior transaction involving the same dependent child, in that case a purchase, that also coincided with insider activity. Readers interested in the earlier side of this pattern can review McClain Delaney Child’s MLM Stock Buy Coincides With Insider Sale, which laid out the earlier buy-side filing and its own nearby insider sale.
Taken together, the two filings — a purchase earlier in the summer and now a sale in late August — suggest MLM has been an active position within the household’s holdings over recent months. The current sale falls within the standard reporting range Congress uses to disclose transaction size, and no further financial detail beyond that range is required or available in the public filing.
Whoisbuyingnow.com will continue monitoring MLM-related disclosures from both congressional and corporate insider filings as they become public.