ASM share buyback update June 10

ASM share buyback update June 10 – 14, 2024

Almere, The Netherlands June 17, 2024, 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
June 10, 2024	150	€ 683.59	€ 102,538
June 11, 2024	150	€ 694.03	€ 104,105
June 12, 2024	150	€ 697.12	€ 104,568
June 13, 2024	150	€ 697.45	€ 104,618
June 14, 2024	150	€ 686.34	€ 102,950
Total	750	€ 691.71	€ 518,779

These repurchases were made as part of the €150 million share buyback program which started on May 15, 2024. Of the total program, 38.7% 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 BareñoT: +31 88 100 8500 E: investor.relations@asm.com

Investor relations Valentina FantigrossiT: +31 88 100 8502E: investor.relations@asm.com

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