Ernest S. Rady, Executive Chairman, Director and 10%+ owner of American Assets Trust, Inc. (NYSE: AAT), added another 50,000 shares to his holdings on August 21, 2026, paying $22.75 apiece for a total outlay of $1,137,500. The purchase was made on the open market, meaning Rady used his own capital rather than exercising options or receiving a grant. Following the transaction, Rady’s indirectly held stake — through a trust or affiliated entity — stands at 8,916,117 shares.
This latest buy is not an isolated event. It marks the seventh open-market purchase by Rady in just eleven days, spanning August 11 through August 21, 2026. Taken together, the seven transactions add up to $8,251,566 in stock bought directly by the company’s top insider, a pace of buying that stands out even among executives with substantial existing ownership.
A Pattern, Not a One-Off
Repeated purchases from the same insider over a short window are typically flagged by market watchers as a ‘cluster buy’ — a signal our classification system has applied here. Academic research on insider trading disclosures has found that clustered buying, where multiple purchases occur close together, tends to correlate with above-average stock performance in the periods that follow, though any individual filing carries no guarantee of future returns and this reporting should not be read as advice to buy or sell shares.
What makes this string of purchases notable is the identity of the buyer. Rady isn’t a passive board member picking up a symbolic number of shares; he holds the Executive Chairman title, sits as Director, and already controls more than 10% of the company through his indirect holdings. A concentrated round of purchases from someone with that level of access to the company’s operations and outlook tends to draw more attention than routine trades from lower-level executives.
We’ve been tracking this spree as it unfolded. An earlier installment, covered in AAT: Rady’s 7th August Buy Pushes Insider Spree Past $9.2M, detailed how the running total climbed through the middle of the month. The August 21 purchase extends that timeline, with the seven-trade total now sitting at $8,251,566 according to the underlying disclosures reviewed for this report.
American Assets Trust is a real estate investment trust, and insider buying activity of this scale from its top officer offers a data point worth watching alongside the company’s broader disclosures and market conditions. Further Form 4 filings, if any follow, will determine whether this represents the tail end of the August buying pattern or the continuation of a longer trend.
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Source: original SEC Form 4 filing.