Pursuant to Sub-section 2 of Section 1 of Article 211-3of the Japanese Commercial Code

Tokyo, Japan –May 19, 2004 - Trend Micro (TSE: 4704; Nasdaq: TMIC), a leader in network antivirus and Internet content security software and services, today resolved at a meeting of its Board of Directors to repurchase its shares from the market.

1. Type of shares to be repurchased: Common shares of the Company 
2. Repurchase period: May 20, 2004 to June 23, 2004 
3. Number of shares to be repurchased: Maximum of 1,000,000 shares 
4. Aggregate cost: Maximum of 4,000,000,000 yen 
5. Repurchase method: Transactions through the Tokyo Stock Exchange

<Note>

Information as of April 30, 2004 
Number of shares issued (excluded treasury shares): 131,407,552 shares
Number of treasury shares: 2,066,716 shares

About Trend Micro:

Trend Micro Incorporated (TSE: 4704), a global cloud security leader, creates a world safe for exchanging digital information with its Internet content security and threat management solutions for businesses and consumers. A pioneer in server security with over 20 years' experience, we deliver top-ranked client, server and cloud-based security that fits our customers' and partners' needs, stops new threats faster, and protects data in physical, virtualized and cloud environments. Powered by the Trend Micro™ Smart Protection Network™ cloud security infrastructure, our industry-leading cloud-computing security technology, products and services stop threats where they emerge, on the Internet, and are supported by 1,000+ threat intelligence experts around the globe.

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