Material SEC Form 8-K filings from the last 36 hours, classified by an LLM into event categories (M&A, earnings, FDA approval, leadership change, bankruptcy, financing, etc.) with sentiment and a four-tier materiality score. Tier 1 = critical / likely to move the stock >5%; Tier 4 = housekeeping. Filtered to actually-material events only.
No material 8-K filings in the last 36 hours.
Form 8-K is the SEC's “current report” — the document a U.S. public company must file within four business days of any material event that a reasonable investor would want to know about. Unlike the scheduled 10-K (annual) and 10-Q (quarterly) reports, an 8-K is unscheduled. That makes it the single highest-signal disclosure for short-term traders: every earnings beat, FDA approval, acquisition, CFO resignation, bankruptcy filing, or going-concern warning lands here first.
The SEC organises 8-Ks by item number. The ones most likely to move a stock are Item 1.01 (material definitive agreements, including M&A), Item 2.02 (earnings results), Item 5.02 (executive departures / appointments), Item 7.01 / 8.01 (Regulation FD & other material events) and Item 1.03 (bankruptcy or receivership). Our LLM classifier reads the full filing body and assigns the category + materiality tier you see in the table above, so you don’t have to parse boilerplate.
Insider purchases that precede a material 8-K event by a few days are one of the highest-precision signals in our data. We cross-reference every cluster of insider buys against 8-K filings in the following 42 days and flag the overlaps as catalyst matches. See current insider clusters →