ArcSight Announces Pricing Of Its Initial Public Offering

ArcSight, Inc., a provider of security and compliance management applications that intelligently mitigate business risk for enterprises and government agencies, today revealed the pricing of its initial public offering of 6,861,919 shares of common stock at $9.00 per share. Of

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ArcSight, Inc., a provider of security and compliance management applications that intelligently mitigate business risk for enterprises and government agencies, today revealed the pricing of its initial public offering of 6,861,919 shares of common stock at $9.00 per share.

Of the 6,861,919 shares of ArcSight’s common stock being offered to the public, 6,000,000 shares are being offered by ArcSight and 861,919 shares are being offered by certain selling stockholders. The offering is expected to close on 20 February 2008.

The underwriters have been granted a 30 day option to purchase up to 900,000 additional shares from ArcSight and 129,287 additional shares from the selling stockholders at the initial public offering price less the underwriting discount to cover over allotments, if any.

ArcSight’s common stock will be listed on the Nasdaq Global Market under the symbol “ARST” and will begin trading on 14 February 2008.

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