Filings, funds, and the data behind them
Data readouts from 1.87M institutional positions across 1,824 filers, and guides to SEC filings, insider activity, and market data for AI agents. New articles daily.
Insider Trading Data API: Query Form 4 Filings at Scale
What a good insider trading data API looks like: Form 4 mechanics, amendment handling, derivative separation, provenance, and code examples for agents.
Insider Activity
10 posts
How to Track Insider Transactions With Form 4 Data
Form 4 puts every insider trade on the public record within two business days. How to filter for code P, weight buying clusters, and wire the feed into an API workflow.
Form 4 Derivative Table vs Non-Derivative: Table I and II
Form 4 splits insider activity into non-derivative Table I and derivative Table II. Naive trackers double-count option exercises and misread RSU vesting as conviction.
The 10 Percent Owner Rule Under SEC Law, Explained
Crossing 10% of a public company makes you a statutory insider: Form 3 and Form 4 deadlines, the 13D/G overlap, and short-swing profit liability, explained.
What Is a Section 16 Officer? Insider Status Explained
Section 16 insider status turns on function, not title. The officer test, director and 10% owner rules, filing deadlines, and the edge cases that trip up real filers.
Form 3 vs Form 4 vs Form 5: The Difference Explained
Form 3 reports initial insider ownership, Form 4 reports trades within 2 business days, and Form 5 is the annual catch-up. How the Section 16 trilogy fits together.
Insider Buying vs Selling: Which Is the Stronger Signal?
Insiders sell for a hundred reasons but buy for one. Why purchases dominate the research, and how cluster logic separates signal from noise in Form 4 data.
What Is a 10b5-1 Plan? Scheduled Insider Trading Explained
Insiders pre-schedule trades through 10b5-1 plans. Here is how they work, what the 2023 cooling-off rules changed, and how much signal a planned sale really carries.
Form 4 Transaction Codes Explained: P, S, A, M, F, G, D, X
A one-letter code on every Form 4 row separates real insider conviction from payroll plumbing. P, S, A, M, F, G, D, and X decoded, with the traps to avoid.
Where Insiders Are Cluster-Buying: June 2026 Form 4 Data
Companies where three or more insiders bought stock on the open market in the last 60 days, from SEC Form 4 filings: Ryan Specialty, Charter, S&P Global, and a run of small banks.