Tokyo, Japan – May 16, 2003 - Trend Micro (TSE: 4704; Nasdaq: TMIC), a leader in network antivirus and Internet content security software and services , today announced the results of share buyback pursuant to Article 210 of the Japanese Commercial Code . The share buyback program was approved pursuant to a resolution of a meeting of its Board of Directors held on April 28 , 2003. 

1. Repurchase period: April 30 , 200 3 through May 16 , 2003
2. Number of shares repurchased: 185,000 shares
3. Aggregate cost of shares repurchased: 275,048,500 yen
    

<Note>

1. At the 14^th Ordinary General Meeting of Shareholders on March 26 , 200 3 , the following was resolved:

Number of shares to be repurchased: Maximum of 2, 500,000 shares
Aggregate cost: Maximum of 5,000,000,000 yen

2. After the 14^th Ordinary General Meeting of Shareholders on March 26 , 200 3 , the Company has repurchased its shares as follows:

Aggregate n umber of shares repurchased: 185,000 shares
Aggregate cost: 275,048,500 yen 

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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