Form 3

{{Short description|Type of U.S. SEC filing}}

{{about|the US SEC form|the grade in Cameroon|Eighth grade}}

{{Context|date=March 2021}}

Form 3 is an SEC filing filed with the US Securities and Exchange Commission to indicate a preliminary insider transaction by an officer, director, or beneficial (10%) owner of the company's securities. These are typically seen after a company IPOs when insiders make their first transactions. After a Form 3 is filed, future filings of the same nature are filed under Form 4 (standard disclosure) or Form 5 (annual disclosure).

Form 3 is stored in SEC's EDGAR database and academic researchers make these reports freely available as structured datasets in the Harvard Dataverse.{{cite journal |last1=Balogh |first1=Attila |date=26 April 2023 |title=Insider trading |url=https://doi.org/10.1038/s41597-023-02147-6 |journal=Scientific Data |volume=10 |issue=237 |doi=10.1038/s41597-023-02147-6 |access-date=3 May 2024|pmc=10130014 }}{{cite journal |last1=Balogh |first1=Attila |date=3 May 2024 |title=Layline insider trading dataset |url=https://doi.org/10.7910/DVN/VH6GVH |journal=Harvard Dataverse |doi=10.7910/DVN/VH6GVH |access-date=3 May 2024}}{{cite web |url=https://dataverse.harvard.edu/dataverse/layline |title=Layline Dataverse}}