Results of Operations and Financial Condition. On August 5, 2026, Veeco Instruments Inc. (“Veeco”) issued a press release announcing its financial results for the quarter ended June 30, 2026. In connection with the release and the related conference call, Veeco posted a presentation relating to its second quarter 2026 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report. ​

Results of Operations and Financial Condition. On May 5, 2026, Veeco Instruments Inc. (“Veeco”) issued a press release announcing its financial results for the quarter ended March 31, 2026. In connection with the release and the related conference call, Veeco posted a presentation relating to its first quarter 2026 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report. ​

Results of Operations and Financial Condition. On February 25, 2026, Veeco Instruments Inc. (“Veeco”) issued a press release announcing its financial results for the quarter and year ended December 31, 2025. In connection with the release and the related conference call, Veeco posted a presentation relating to its fourth quarter and fiscal year 2025 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to…

Other Events. Update on Regulatory Approvals As previously announced, on September 30, 2025, Axcelis Technologies, Inc., a Delaware corporation (“ Axcelis ”), entered into an Agreement and Plan of Merger (the “ Merger Agreement ”), by and among Axcelis, Victory Merger Sub, Inc., Delaware corporation and a direct wholly owned subsidiary of Axcelis (“ Merger Sub ”) and Veeco Instruments Inc., a Delaware corporation (“ Veeco ”), pursuant to which, subject to the terms and conditions set forth th…

Other Events. As previously disclosed, on September 30, 2025, Veeco Instruments Inc., a Delaware corporation (“Veeco” or the “Company”), Axcelis Technologies, Inc., a Delaware corporation (“Axcelis”), and Victory Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Axcelis (“Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”). Pursuant to the Merger Agreement, and subject to the satisfaction or waiver of the conditions specified therein, Me…

Results of Operations and Financial Condition. On November 5, 2025, Veeco Instruments Inc. (“Veeco”) issued a press release announcing its financial results for the quarter ended September 30, 2025. In connection with the release and the related conference call, Veeco posted a presentation relating to its third quarter 2025 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report. Additional In…

Regulation FD Disclosure On September 29, 2025, the U.S. Department of Commerce’s Bureau of Industry and Security issued a new rule that expands the scope of companies subject to U.S. list-based export restrictions (the “Affiliates Rule”). The Affiliates Rule will restrict manufacturers’ ability to export certain products and to provide certain parts and services to specific China-based customers without a license. Based on our preliminary review, we do not expect that the application of the…

Entry into a Material Definitive Agreement. Agreement and Plan of Merger On September 30, 2025, Veeco Instruments Inc., a Delaware corporation (“ Veeco ”), Axcelis Technologies, Inc., a Delaware corporation (“ Axcelis ”), and Victory Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Axcelis (“ Merger Sub ”), entered into an Agreement and Plan of Merger (the “ Merger Agreement ”). Pursuant to the Merger Agreement, and subject to the satisfaction or waiver of the conditi…

Other Events. On October 1, 2025, Axcelis and Veeco jointly issued a press release announcing their entry into the Merger Agreement. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Additional Information About the Potential Transaction and Where to Find It In connection with the proposed transaction, Axcelis and Veeco intend to prepare, and Axcelis intends to file with the SEC, a registration statement on Form S-4 that will includ…

Results of Operations and Financial Condition. On August 6, 2025, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter ended June 30, 2025. In connection with the release and the related conference call, Veeco posted a presentation relating to its second quarter 2025 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement Fourth Amendment to Loan and Security Agreement On June 16, 2025, Veeco Instruments Inc. (the “Company”) entered into a Fourth Amendment (the “Fourth Amendment”) to the Loan and Security Agreement, dated as of December 16, 2021, among the Company, as borrower, HSBC Bank USA, National Association, as administrative agent and collateral agent, and HSBC Bank USA, National Association, Barclays Bank PLC, Santander Bank, N.A. and Citibank, N.A. as Joint L…

Unregistered Sales of Equity Securities. On May 15, 2025, Veeco Instruments Inc. (the “Company”) completed separate, privately-negotiated transactions with the holders of all of its $25.0 million in aggregate principal amount of 3.75% Convertible Senior Notes due 2027 (the “Notes”) in which the holders exchanged their Notes (the “Exchanges”) for an aggregate of 1,643,084 shares of the Company’s common stock, $0.01 par value per share (the “Common Stock”), and aggregate cash payments of approx…

Results of Operations and Financial Condition. On May 7, 2025, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter ended March 31, 2025. In connection with the release and the related conference call, Veeco posted a presentation relating to its first quarter 2025 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.

Results of Operations and Financial Condition. On February 12, 2025, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter and year ended December 31, 2024. In connection with the release and the related conference call, Veeco posted a presentation relating to its fourth quarter and fiscal year 2024 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.

Regulation FD Disclosure On December 2, 2024, U.S. Department of Commerce’s Bureau of Industry and Security released new interim final rules adding new companies to the U.S. Entity List and further regulating the export of certain semiconductor capital equipment products and services to China-based customers (the “2024 BIS Rules”). The 2024 BIS Rules are complex, and we are still reviewing their application to our products and services. Based on our preliminary review, we do not expect that t…

Results of Operations and Financial Condition. On November 6, 2024, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter ended September 30, 2024. In connection with the release and the related conference call, Veeco posted a presentation relating to its third quarter 2024 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.

Results of Operations and Financial Condition. On August 6, 2024, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter ended June 30, 2024. In connection with the release and the related conference call, Veeco posted a presentation relating to its second quarter 2024 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.

Entry into a Material Definitive Agreement Third Amendment to Loan and Security Agreement On August 2, 2024, the Company entered into a Third Amendment (the “Third Amendment”) to the Loan and Security Agreement, dated as of December 16, 2021, among the Company, as borrower, HSBC Bank USA, National Association, as administrative agent and collateral agent, and HSBC Bank USA, National Association, Barclays Bank PLC, Santander Bank, N.A. and Citibank, N.A. as Joint Lead Arrangers and Joint Bookr…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Results of Operations and Financial Condition. On May 7, 2024, Veeco Instruments Inc. issued a press release announcing its financial results for the quarter ended March 31, 2024. In connection with the release and the related conference call, Veeco posted a presentation relating to its first quarter 2024 financial results on its website (www.veeco.com). Copies of the press release and presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this report.