ASM International N.V.

Transaction in Own Shares • Jul 15, 2025

Almere, The Netherlands July 14, 2025, 5:45 p.m. CET

ASM share buyback update July 7 – 11, 2025

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

Date	Repurchased	Average price	Repurchased
	shares		value
July 7, 2025	25	€ 507.60	€ 12,690
July 8, 2025	837	€ 506.37	€ 423,834
July 9, 2025	410	€ 512.89	€ 210,283
Total	1,272	€ 508.50	€ 646,807

These repurchases were made as part of the €150 million share buyback program which started on April 30, 2025. Of the total program, 40.4% 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.

Contacts

Investor and media relations Investor relations

T: +31 88 100 8500 T: +31 88 100 8502 E: investor.relations@asm.com E: investor.relations@asm.com

Victor Bareño Valentina Fantigrossi