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L.4 · INTERMEDIATE · 2 MIN

8-K: The Material Event Disclosure

The 8-K is the SEC's 'something just happened' filing — used when material events occur between the periodic 10-K and 10-Q filings. Most 8-Ks are routine (earnings announcements, board changes); a small subset are loud signals (restatements, M&A, CEO departures, going-concern issues). Learning the item-number taxonomy is the difference between watching noise and reading signal.

Quiz · 5 questions ↓

The 8-K item-number taxonomy

Item #What it disclosesTypical signal
Item 1.01Entry into a material definitive agreementM&A deal announced, large customer contract signed
Item 2.02Results of operations and financial conditionQuarterly earnings release (routine; nearly all public companies)
Item 4.02Non-reliance on previously-issued financialsRestatement coming — one of the loudest signals
Item 5.02Departure or appointment of directors/officersCEO/CFO change — often material for stock price
Item 7.01 / 8.01Regulation FD / Other eventsCatch-all for material info that doesn't fit other items

Why the four-day filing deadline exists

The 8-K must be filed within 4 BUSINESS DAYS of the triggering event (per Section 13 or 15(d) of the Exchange Act). That deadline is short by design: the disclosure regime exists to prevent insider-trading windows, so investors must learn material news at the same time as everyone else. Late 8-Ks are themselves a red flag because they often indicate disorganized governance or the company stalling to time the news with other releases.

Why the exhibits matter more than the cover

The 8-K filing itself is usually short (1-3 pages); the EXHIBITS attached to it are where the substance lives. A material-agreement 8-K (Item 1.01) typically attaches the actual contract; a CEO-departure 8-K (Item 5.02) often attaches a separation agreement with severance terms. The press-release exhibit is the PR-vetted version; the contract exhibit is what the lawyers actually wrote — read both, they often diverge in tone.

Match a price move to its 8-K

Pick a recent stock-price move you saw in the news. Look up the company's recent 8-K filings on EDGAR. The 8-K should align with the news event, and the item number will tell you the SEC's taxonomy for the event. If a stock move has no 8-K behind it, the move was probably driven by analyst action, sector rotation, or rumor — not company disclosure.

What Friday after-close filings signal

Watch for 8-Ks filed AFTER MARKET CLOSE on Fridays. The pattern is well-documented: companies time bad news (executive departures, restatement notices, weak guidance) to land when the market can't react for 60 hours. The disclosure itself satisfies the regulatory deadline, but the timing is a soft signal that management thinks the news is bad. Conversely, 8-Ks filed mid-morning Tuesday usually contain news the company is comfortable trading on.

The 8-K in summary: item numbers and timing

So far

The 8-K is the inter-period event signal. Learn the high-priority item numbers (1.01 M&A / 4.02 restatement / 5.02 leadership change). Read the exhibits, not just the cover page. Watch the timing — late or weekend filings carry their own signal beyond the content.

Check your understanding

Sit with the ideas.

A company files an 8-K with Item 4.02 (non-reliance on previously-issued financial statements). What does this typically mean?

Why:
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Other lessons in this course.

  1. 01The 10-K: A Field Guide to the Annual Report
  2. 02Reading 13D, 13G, and Form 4: Tracking Institutional Holdings
  3. 03The 10-Q: What Changed Since the 10-K
  4. 048-K: The Material Event Disclosure— reading now
  5. 05The S-1: Reading the IPO Prospectus
  6. 06DEF 14A: Reading the Proxy Statement
  7. 0713F: How Institutional Investors Disclose Holdings
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