Arista Networks, Inc.
For the period ended Dec 31, 2025. Filed Feb 17, 2026.
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FY2025 · Filed Feb 17, 2026
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Item 9B. Other Information
Securities Trading Plans of Directors and Executive Officers
During our last fiscal quarter, each of the following directors and officers, 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 November 14, 2025, Jayshree Ullal, our Chairperson and Chief Executive Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of: (i) up to 5,726,000 shares of our common stock; and (ii) a number of shares of our common stock that may be earned in connection with grants of performance-based restricted stock units, which cannot be determined at this time. The duration of the trading arrangement is until February 20, 2027, or earlier if all transactions under the trading arrangement are completed. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c).
On November 21, 2025, Yvonne Wassenaar, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of up to an aggregate of 5,576 shares of our common stock. The duration of the trading arrangement is until February 26, 2027, or earlier if all transactions under the trading arrangement are completed. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c).
On December 11, 2025, Chantelle Breithaupt, our Senior Vice President and Chief Financial Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of a number of shares of our common stock that may be earned in connection with grants of performance-based restricted stock units, which cannot be determined at this time. The duration of the trading arrangement is until December 31, 2026, or earlier if all transactions under the trading arrangement are completed. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c).
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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