Form 3 and Form 5, explained: the Section 16 filings around a Form 4

Section 16 of the Exchange Act covers officers, directors, and 10% beneficial owners of a public company. Three forms carry that reporting: Form 3 when someone becomes an insider, Form 4 when they trade, and Form 5 as an annual catch-up. Form 4 is the one you use for recent activity. The other two complete the holdings file.

If you only watch Form 4s, you will miss starting stakes and some exempt trades. If you treat every Section 16 filing as a buy or sell, you will misread snapshots as transactions.

A Form 3 is the initial statement of beneficial ownership. It is generally due within 10 days after a person becomes a Section 16 insider - for example, when they join the board, become a named officer, or cross 10% ownership. It lists what they already own, directly and indirectly, including derivative securities.

A large Form 3 position is not evidence that the insider just bought. It is evidence that they showed up with a stake. The research use is a baseline: later Form 4s are easier to interpret once you know starting holdings.

A Form 5 is an annual statement. It is generally due within 45 days after the issuer's fiscal year-end and reports certain transactions that were eligible to be deferred - typically small or exempt trades that never required a Form 4. If every transaction already appeared on a Form 4, many insiders have nothing to put on a Form 5.

Because it can land weeks after year-end, a Form 5 is a historical catch-up, not a timely tape. Compare the period covered to the filing date before assigning any urgency.

Greedy Insider's live feed is built around timely Form 4s. The Greediness Score ranks those filings by structural conviction so you open the highest-information trades first. Form 3 and Form 5 belong in the background file, not in the same queue.

Neither filing is a trade recommendation, a proof of non-public information, or a forecast of returns. A Form 3 does not mean the insider is accumulating. A Form 5 does not mean they hid activity. Late or amended Section 16 filings happen. Verify the primary document on EDGAR, then open the live feed filtered to Strong at /app?band=strong for the Form 4s that actually belong at the top of a daily reading list.