Event types
Every kind of US event-driven situation we track, each on its own calendar and traced to its SEC filing. Coverage windows are uneven and stated honestly — only spin-offs have the full record so far. For everything combined, see the full calendar.
A parent company distributes a subsidiary directly to its shareholders, creating a new public company (SEC Form 10 / 10-12B).
Coverage: 1994–present · back to EDGAR's start (thinner pre-1996 as e-filing phased in)
Companies whose shareholders are voting on a merger or acquisition (definitive merger proxy, DEFM14A). The listed company is the target.
Coverage: 2001–present
First-time issuers that registered with the SEC and listed (S-1 / F-1). Includes SPACs and smaller listings.
Coverage: 2020–present
Take-private transactions — squeeze-outs, sponsor buyouts (Schedule 13E-3).
Coverage: 2001–present
Investors disclosing a 5%+ position with intent to influence the company (Schedule 13D). High volume — not every 13D is a campaign. The listed company is the target.
Coverage: 2025
A third party offers to buy shares directly from holders, usually to take a company over (Schedule TO-T). The listed company is the target; the bidder is named in the filing.
Coverage: 2001–present
Companies reporting a bankruptcy or receivership filing (8-K item 1.03) — Chapter 11 reorganizations and Chapter 7 liquidations.
Coverage: 2004–present
Companies that told the SEC their previously issued financial statements can no longer be relied upon (8-K item 4.02) — an accounting error or irregularity. A serious red flag.
Coverage: 2023–present
Counts are live from the database. Every entry links to its source SEC filing; where a field isn't in the filing we leave it blank rather than guess. New to the terminology? See the guide and types of spin-offs.