Allison announces initial public offering

Allison Transmission Holdings Inc. priced its initial public offering of 26,100,000 shares of common stock at $23 per share. The shares began trading March 15, on the New York Stock Exchange under the ticker symbol "ALSN."

The selling stockholders in the offering have granted the underwriters an option to purchase up to 3,915,000 additional shares at the initial offering price, less the underwriting discounts and commissions, to cover overallotments, if any.

All of the shares of common stock offered are being sold by selling stockholders. Allison Transmission Holdings Inc. will not receive any proceeds from the sale of shares by the selling stockholders in this offering, including from any exercise by the underwriters of their overallotment option.