A dedicated place for helpful tips, guides, and observations about Section 16(a) reporting.
We counted every transaction row, holding row, and footnote on two years of Form 4s for 5,218 issuers. Look up your company and see how it compares to all filers and to the S&P 500.
Read →A free reference to every Form 4 transaction code: what each one reports, the columns EDGAR expects, and how often each was actually filed in 2025.
Read →A Form 4 is not always required: which insider transactions are exempt, which defer to a year-end Form 5, and which still need filing in two business days.
Read →How Section 16(a) reporting works: who is a reporting person, what Forms 3, 4, and 5 cover, and how EDGAR filing deadlines are counted.
Read →Full access, free for your first 10 forms.