VEECO INSTRUMENTS INC

During the fiscal quarter ended June 30, 2025, the following directors and Section 16 officers, as applicable, adopted, modified or terminated “Rule 10b5-1 trading arrangements" (as defined in Item 408 of Regulation S-K):

●On May 20, 2025, William J. Miller, Ph.D., our Chief Executive Officer, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). Dr. Miller’s plan covers the sale of 200,000 shares of our common stock, between September 2, 2025 and March 1, 2028. Transactions under the plan are based upon pre-established dates and stock price thresholds.

●On June 4, 2025, Adrian Devasahayam, Ph.D., our Senior Vice President, Product Line Management, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). Dr. Devasahayam’s plan covers the sale of 11,911 shares of our common stock, between September 4, 2025 and June 2, 2026. Transactions under the plan are based upon pre-established dates and stock price thresholds.

There were no “non-Rule 10b5-1 trading arrangements” (as defined in Item 408 of Regulation S-K)adopted, modified orterminated during the fiscal quarter ended June 30, 2025 by our directors and Section 16 officers. Each of the Rule 10b5-1 trading arrangements are in accordance with our Securities Trading Policy and actual sale transactions made pursuant to such trading arrangements will be disclosed publicly in Section 16 filings with the SEC in accordance with applicable securities laws, rules and regulations.