A SPAC (special purpose acquisition company) is a blank-check public vehicle that merges with a private company to effect a public listing — the de-SPAC transaction.

How it works

Sponsors launch a SPAC via IPO; proceeds sit in trust. The SPAC searches for a target, negotiates merger terms, and seeks shareholder approval. Public shareholders may redeem for cash instead of staying invested. PIPE (private investment in public equity) investors often fill gaps if redemptions are high.

Legacy shareholders receive public stock through a share-for-share exchange. Sponsors typically earn promote shares for finding and closing a deal — aligned but sometimes criticized if quality suffers.

Disclosure differs from traditional IPO S-1 paths; forward projections appeared more prominently in peak SPAC eras, drawing SEC attention.

Why it matters

• Founders: SPACs can be faster and price-certain but carry reputation and litigation risk if projections miss. Banker and legal costs remain substantial.
• Investors: VC holders evaluate lock-ups, earnouts, and whether public float supports liquidity. Many SPAC mergers traded down post-close — diligence on sponsor quality matters.

Common mistake

Assuming SPAC equals guaranteed liquidity — high redemptions and weak PIPE can leave the company with less cash than planned and a depressed stock price.

Related ideas

• IPO
• Share-for-share exchange
• PIPE and redemption mechanics