A PIPE (Private Investment in Public Equity) is the purchase of stock in a publicly-traded company at a discount to market price by institutional investors. Buyers include hedge funds, mutual funds, and growth equity firms, with public companies using PIPEs when they need capital quickly without the time and complexity of a traditional secondary offering. PIPE deals are relevant to startups primarily in the context of SPAC mergers (where PIPE financing typically accompanies the SPAC transaction to validate the combined company's pricing) and at post-IPO companies that need additional capital. Most pre-IPO startup founders don't deal with PIPE directly, but understanding it matters for SPAC contexts and post-IPO operations.
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