Heartflow Announces $364.2 Million Upsized IPO

San Francisco – August 11, 2025 – Cooley advised the underwriters of Heartflow, a leader in artificial intelligence technology for coronary artery disease, in connection with Heartflow’s $364.2 million upsized initial public offering (IPO). Heartflow offered 19,166,667 shares priced at $19 per share, which includes 2,500,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares. Heartflow’s common stock began trading on the Nasdaq Global Select Market on August 8, 2025, under the ticker symbol HTFL. J.P. Morgan, Morgan Stanley and Piper Sandler acted as joint book-running managers for the offering and Stifel and Canaccord Genuity acted as co-managers.

Partners David Peinsipp, Kristin VanderPas, Charlie Kim and Denny Won led the Cooley team advising the underwriters.

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