Trend Micro Announces Results of Share Buyback

Tokyo, Japan – September 20, 2006 - Trend Micro (TSE: 4704; Nasdaq: TMIC), a leader in network antivirus and Internet content security software and services, today announced the results of its share buyback program pursuant to Article 165(2) of the Corporation Law of Japan. The share buyback program was approved pursuant to a resolution adopted at a meeting of the Board of Directors held on August 21, 2006.

1. Purchase period:

From August 22, 2006 to September 20, 2006 (based on trade date)

2. Number of shares purchased:


3. Aggregate cost of shares purchased:

6,809,730,000 yen

4. Purchase method:

Transactions through the Tokyo Stock Exchange

Note: At the meeting of the Board of Directors held on August 21, 2006, the Board adopted a resolution approving the share buyback program as follows:

(1) Class of Capital Stock to be Purchased:
Shares of Common Stock

(2) Number of Shares to be Purchased:
Up to 2 million shares

(3) Total Purchase Price:
Up to 7 billion yen

(4) Schedule:
From August 22, 2006 to September 30, 2006


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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