Ullal Jayshree, CEO and Chairperson of Arista Networks (ANET), has filed 188 Form 4 transactions across two companies, with a total sell value of roughly $1.38 billion and zero open-market purchases. The recent activity is entirely one-directional. Between August 5 and August 25, 2026, she executed 23 open-market sales in ANET, ranging from a small $4,650 disposal to a $47.2 million block on August 12. That single day saw the heaviest volume, with more than a dozen separate S transactions totaling over $93 million. Smaller sales on August 5 and August 25 added another $2.4 million and $2.6 million, respectively.
The pattern also includes mechanical filings that are not discretionary. On August 20, an M code showed an option exercise valued at $0, paired with an F code for $2.58 million in shares withheld to cover taxes. Those are automatic events tied to equity compensation, not open-market decisions. The S codes, by contrast, are direct sales of shares, and they dominate the recent record. There is no P code in the data, meaning no open-market purchases appear anywhere in her filing history.
The concentration in ANET is near total. Two companies appear in her filings, but the recent trades and the bulk of the dollar value sit in Arista. The August 12 cluster alone accounts for most of the $1.38 billion lifetime sell total. The direction is consistent: sales, and only sales, across the most recent filing window.
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