Under Armour went public (IPO) in which year?

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Under Armour went public in 2005. The company held its initial public offering on the Nasdaq in November of that year, marking a major transition from a fast-growing private apparel business into a publicly traded company.

Under Armour’s IPO raised approximately $153 million of capital and initially traded under the ticker symbol UARM. The offering attracted unusual attention because the company’s shares more than doubled on their first day of trading, making it one of the strongest U.S. IPO debuts in several years.

The public listing followed rapid growth built around moisture-wicking performance shirts. Founder Kevin Plank started the company in 1996, and early sales came from football teams and athletes seeking alternatives to heavy cotton clothing. By the time of the IPO, Under Armour had expanded beyond its original compression-shirt niche.

A common mix-up is confusing the IPO year with later stock-market changes. Under Armour introduced dual-class shares around the offering, and its public trading history later included ticker and share-class changes. Those developments did not alter the fact that the company first became publicly traded in 2005.

Source: Wikipedia · fact-checked Sept. 2026

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