ASM share buyback update May 19 – 23, 2025

Rhea-AI Summary

ASM International (ASMIY) has provided an update on its ongoing share buyback program for the period of May 19-23, 2025. The company repurchased a total of 23,754 shares at an average price of €475.52, representing a total value of €11.3 million. This latest round of repurchases is part of ASM's larger €150 million share buyback program that commenced on April 30, 2025. To date, 18.2% of the total program has been completed.

ASM International, headquartered in Almere, the Netherlands, specializes in designing and manufacturing semiconductor equipment and process solutions for wafer processing, with facilities across the United States, Europe, and Asia.

Almere, The Netherlands
May 26, 2025, 5:45 p.m. CET

ASM International N.V. (Euronext Amsterdam: ASM) reports the following transactions, conducted under ASM's current share buyback program.

Date	Repurchased shares	Average price	Repurchased value
May 19, 2025	6,036	€ 475.75	€ 2,871,620
May 20, 2025	6,197	€ 476.27	€ 2,951,441
May 21, 2025	2,690	€ 480.57	€ 1,292,736
May 22, 2025	2,689	€ 479.98	€ 1,290,660
May 23, 2025	6,142	€ 470.38	€ 2,889,089
Total	23,754	€ 475.52	€ 11,295,546

These repurchases were made as part of the €150 million share buyback program which started on April 30, 2025. Of the total program, 18.2% has been repurchased. 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 Valentina Fantigrossi T: +31 88 100 8502 E: investor.relations@asm.com

Attachment

• 20250526 ASM Share Buyback Update May 19 - 23, 2025

FAQ

What is the total value of ASMIY's current share buyback program?

ASM International's current share buyback program has a total value of €150 million, which started on April 30, 2025.

How many shares did ASMIY repurchase between May 19-23, 2025?

ASM International repurchased 23,754 shares between May 19-23, 2025, at an average price of €475.52 per share, totaling €11.3 million.

What percentage of ASMIY's buyback program has been completed?

As of May 23, 2025, 18.2% of ASM International's €150 million share buyback program has been completed.

What was the highest daily repurchase amount for ASMIY during May 19-23, 2025?

The highest daily repurchase was on May 20, 2025, when ASM International bought back 6,197 shares for approximately €2.95 million.