ASM share buyback update July 1 – 5, 2024

Almere, The Netherlands
July 8, 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
July 1, 2024	150	€ 708.08	€ 106,212
July 2, 2024	150	€ 702.87	€ 105,430
July 3, 2024	550	€ 710.60	€ 390,829
July 4, 2024	1,800	€ 718.18	€ 1,292,718
July 5, 2024	700	€ 719.94	€ 503,955
Total	3,350	€ 716.16	€ 2,399,144

These repurchases were made as part of the €150 million share buyback program which started on May 15, 2024. Of the total program, 41.0% 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: [email protected]

Investor relations Valentina Fantigrossi T: +31 88 100 8502 E: [email protected]

20240708 ASM Share Buyback Update July 1 - 5 2024