How to read SEC red flags

8-K concepts

What is a buried 8-K? Material disclosures hiding under Item 8.01

SEC 8-K Item 8.01 ('Other Events') is meant for general announcements. In practice ~7% of Item 8.01 filings contain material events the filer didn't tag with a more specific code.

8-K items

SEC Item 1.05: What the cybersecurity disclosure rule actually requires

Item 1.05 of Form 8-K, effective December 2023, requires public companies to disclose material cybersecurity incidents within 4 business days. Here's what triggers it.

8-K items

Officer departure 8-Ks (Item 5.02): What CFO resignations actually signal

Item 5.02 captures officer + director changes. The signal value depends heavily on context: routine succession vs. abrupt resignation vs. forced exit.

8-K items

SEC Item 4.02: Restatements and what 'non-reliance' on financials means

Item 4.02 of Form 8-K signals that previously issued financial statements should no longer be relied on. It's a serious red flag — here's how to read it.

dilution

ATM offering vs S-3 shelf: How to read SEC dilution signals

An S-3 shelf registers the right to dilute. A 424B5 ATM offering executes on that right. Knowing the difference is critical for dilution risk analysis.

10-K concepts

Going concern language: How to spot 10-K survival warnings

A 'substantial doubt about ability to continue as a going concern' is the auditor's most serious red flag. Here's how to find it.

Form 4

Form 4 insider trading: What 'cluster selling' actually means

When multiple insiders sell stock within a short window, it's called cluster selling. It's one of the most-studied insider-activity patterns.

8-K items

SEC Item 3.01: Reading delisting notices on NYSE and Nasdaq

Item 3.01 covers delisting notices and listing-rule deficiencies. It's a strong red flag and often the precursor to bankruptcy.

13D/13G

Schedule 13D filings: How activist disclosures move stock prices

A Schedule 13D is filed by any investor acquiring 5%+ of a public company's stock with activist intent. The activist's identity is often more important than the size.

8-K items

SEC Item 1.03: How public companies disclose bankruptcy filings

Item 1.03 of Form 8-K is the formal disclosure of bankruptcy or receivership. It's the highest-weighted Forensic signal.