Learn: reading SEC Form 4 insider filings

Short, source-linked explainers for reading SEC Form 4 insider filings: what each transaction code means, how 10b5-1 plans work, and how to read buying vs selling activity without treating it as a signal.

• Form 4 transaction codes explainedP, S, A, M, F, G, each with a real example
• What does a 10b5-1 plan sale meanScheduled trading plans vs. discretionary sales
• Insider buying vs selling signalWhat the buy/sell mix can and cannot tell you