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.











