Learning path · 6 steps
Who owns a US company, and what the filings disclose
The SEC filings that show who owns a US company: 5% holders, the proxy's ownership table, insider trades, share classes and fund holdings.
By Hardik Bhandare · Checked against filings: , 29 min in all. Editorial policy. Corrections
- 1
Know the trap · 6 min
Schedule 13D vs 13G: who owns more than 5%
Who crossed 5% of a class of shares, and whether they say they plan to act.
- 2
How to read · 5 min
How to read a proxy statement (DEF 14A): Nvidia's 2026 proxy
The proxy's beneficial-ownership table: large holders, directors and officers as a group.
- 3
Know the trap · 4 min
Form 4 insider filings: who files, the codes and the footnotes
What directors and officers bought and sold, reported within two business days.
- 4
Know the trap · 5 min
Rule 10b5-1 trading plans: how insiders pre-schedule their trades
Why many insider sales were scheduled in advance, and where the plans are disclosed.
- 5
Know the trap · 4 min
Dual-class shares: when votes and ownership don't match
When shares and votes split apart, and who controls the votes.
- 6
Know the trap · 5 min
What is a 13F filing? Quarterly fund holdings, with a real US example
What large fund managers held at the last quarter end, filed up to 45 days later.
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