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Arista Networks, Inc.

For the period ended Sep 30, 2026. Filed Nov 4, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 4, 2026

ANET$186.17+9.0%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Securities Trading Plans of Directors and Executive Officers

During our last fiscal quarter, the following directors and officer, as defined in Rule 16a-1(f), adopted a “Rule 10b5-1 trading arrangement” as defined in Regulation S-K Item 408, as follows:

On August 18, 2026, Daniel Scheinman, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 8,000 shares of our common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until November 24, 2027, or earlier if all transactions under the trading arrangement are completed.

On August 21, 2026, Charles Giancarlo, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 60,000 shares of our common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until November 24, 2027, or earlier if all transactions under the trading arrangement are completed.

On September 11, 2026, Todd Nightingale, our President and Chief Operating Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 14,000 shares of our common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until November 30, 2027, or earlier if all transactions under the trading arrangement are completed.

On September 15, 2026, Kelly Battles, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 3,634 shares of our common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until January 18, 2028, or earlier if all transactions under the trading arrangement are completed.

No other officers or directors, as defined in Rule 16a-1(f), adopted orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as defined in Regulation S-K Item 408, during the last fiscal quarter.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.