ASM announces completion of share buyback program

ASM International completes its €150 million 2026 buyback, adding shares mainly to support existing and future equity compensation plans.

Rhea-AI Summary

ASM International (ASMIY) has completed its 2026 share buyback program totaling €150 million.

The program was authorized on March 3, 2026, ran from August 10 to September 14, 2026, and resulted in the repurchase of 185,522 shares at an average price of €808.53. The buyback was executed by an independent third party. On September 14, 2026, ASM repurchased 29,615 shares at an average price of €760.69, for a value of €22,527,728, completing the program.

ASM intends to use the repurchased shares to cover existing and expected future obligations under its share-based compensation programs and describes the buyback as part of its commitment to use excess cash for shareholders’ benefit.

Positive

• Completed buyback of €150 million under the 2026 program
• 185,522 shares repurchased at an average price of €808.53
• Final day repurchases of 29,615 shares worth €22,527,728 on September 14, 2026

Negative

• None.

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Almere, The Netherlands
September 15, 2026, 5:45 p.m. CET

ASM International N.V. (Euronext Amsterdam: ASM) today announces that its €150 million share buyback program 2026 has been completed.

On March 3, 2026, ASM announced the authorization of a new share buyback program of up to €150 million. The program started on August 10, 2026, and was completed on September 14, 2026. In total, we repurchased 185,522 shares at an average price of €808.53, under the 2026 program.

The program was executed by an independent third party. ASM intends to use the repurchased shares to cover existing and expected future obligations under its share-based compensation programs for employees and board members. The repurchase program is part of ASM's commitment to use excess cash for the benefit of its shareholders.

Weekly update share buyback

In addition, ASM reports the following transactions for September 14, 2026, which completed the 2026 share buyback program.

Date	Repurchased shares	Average price	Repurchased value
September 14, 2026	29,615	€ 760.69	€ 22,527,728
Total	29,615	€ 760.69	€ 22,527,728

For further details including individual transaction information please visit:
www.asm.com/investors/dividends-share-buybacks.

About ASM International

ASM International N.V., headquartered in Almere, the Netherlands, and its subsidiaries design and manufacture equipment and process solutions to produce semiconductor devices for wafer processing, and have facilities in the United States, Europe, and Asia. ASM International's common stock trades on the Euronext Amsterdam Stock Exchange (symbol: ASM). For more information, visit ASM's website at www.asm.com.

This press release contains inside information within the meaning of Article 7(1) of the EU Market Abuse Regulation.

Contact Investor and media relations Victor Bareño T: +31 88 100 8500 E: investor.relations@asm.com

Investor relations Daniel Uribe T: +31 88 100 8127 E: investor.relations@asm.com

Attachment

• 20260915 Completion share buyback program

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Where can investors find detailed information on individual share repurchase transactions?

Detailed information on individual transactions under ASM’s 2026 share buyback program is available on the company’s website at www.asm.com/investors/dividends-share-buybacks.