Activity Companies Alerts About

What every CEO owns of the company they run.

Every US public company worth $200M or more, computed from the SEC filings they signed. Updated nightly, never estimated.

434
Founder-led companies
362
CEOs own more than 5%
$2.2T
Held by those founders
2,906
Companies, computed nightly

Filed this week

The three biggest founder moves of the last seven days, by the size of the trade
The full tape →
Oct 23UTHRMartine Rothblatt: exercise and sell, $5.5M · UNITED THERAPEUTICS CorpEXERCISE AND SELL
Oct 26UTHRMartine Rothblatt: exercise and sell, $5.5M · UNITED THERAPEUTICS CorpEXERCISE AND SELL
Oct 22UTHRMartine Rothblatt: exercise and sell, $5.3M · UNITED THERAPEUTICS CorpEXERCISE AND SELL

The stakes

The three largest founder stakes, by value
All companies →
01 · READ THE FILINGS
Every Form 4 and every proxy statement, pulled from SEC EDGAR nightly. The record starts in 2016.
02 · COMPUTE THE STAKE
Shares reported held over shares outstanding: a fraction, not an estimate. When the filings can’t settle a number, the page says so; nothing is guessed.
03 · LINK EVERY TRADE
Every number carries the filing it came from. Click through to EDGAR and check it yourself.
Know within minutes when a founder’s stake moves.
An email within minutes of any filing that moves a founder’s holding 1% or more. Free.