What is an SEC Form 4?
Last checked 28 August 2026
A Form 4 is the filing a corporate insider — an officer, a director, or a holder of more than 10% of a company — must submit to the SEC after buying or selling that company's stock. It is due within two business days of the transaction, which makes it the fastest routine disclosure in US markets.
How is it different from a congressional PTR?
Three ways. It is far faster: two business days against 45. It reports exact share counts and prices, not ranges. And it concerns a company the filer runs, rather than the wider market.
Is an insider purchase a bullish sign?
It is a data point, not a verdict. Insiders sell for many reasons that say nothing about the company — tax bills, diversification, scheduled 10b5-1 plans. Purchases are usually considered more informative than sales for exactly that reason, but a single filing proves nothing on its own.
What is a cluster buy?
Several distinct insiders at the same company buying within a short window. It is more interesting than one purchase because it is harder to explain away as one person's liquidity decision. Tracked Money detects these across filers rather than requiring you to spot them.
How Tracked Money uses this
Tracked Money reads these filings and tells you when one lands — congressional PTRs, insider Form 4s, 13F changes, dark-pool prints and federal contract awards. Every figure links back to the document it came from. Tracked Money has not shipped on the App Store yet.
What Tracked Money tracks · How it compares · More explainers
Sources
Tracked Money tracks public STOCK Act and 13F disclosures. This page explains public rules and is not legal or investment advice. Regulatory details were verified on 28 August 2026 and can change.