Private-company estimates swing because one startup can carry several true prices at once. A founder's net worth shifts with the share class, the rights attached, and the date used. A Section 409A valuation is an independent appraisal that sets fair market value of private common stock for option strike prices, as Carta explains in Carta's guide to fair market value. Headline funding value, 409A value, secondary-sale price, and media estimates each track different rights at different times.
Table of Contents
- Why does the funding-round valuation mislead?
- What is founder common stock actually worth?
- How do wealth lists turn private shares into billions?
- How should readers compare two net-worth numbers?
Why does the funding-round valuation mislead?
Investors often buy preferred shares with special protections. Founders usually hold common shares with fewer protections.
Preferred investors with a standard 1x liquidation preference are paid first in a sale. The AICPA Valuation Guide working draft via Kroll describes that payback order. In a modest exit, common holders can receive little or nothing after that preference is paid.
What is founder common stock actually worth?
Common stock valued in a 409A appraisal commonly lands at 20% to 60% of the preferred-share price, according to Warp in Warp's 409A valuations explainer. Common lacks liquidation preferences and investor protections, so the discount reflects weaker rights.
Employee secondary sales often clear above the prevailing 409A value. Lexology reports those deals are usually negotiated off the preferred-round price. Appraisers must reconcile that observable price in the next 409A.
How do wealth lists turn private shares into billions?
Forbes estimates undisclosed private businesses from revenue or profit times public-company multiples, then applies a 10% illiquidity discount, as described by the Elcano Royal Institute in its analysis of Forbes methodology. Change the multiple or the discount and the founder total moves.
Bloomberg Billionaires Index applies about a 10% risk discount to private ByteDance when estimating founder Zhang Yiming's roughly 21% stake, according to Live Mint reporting in its report on Bloomberg's Zhang Yiming estimate. That single assumption shifts the result by billions.
How should readers compare two net-worth numbers?
Wealth trackers rely on filings, disclosed stakes, court records, and expert interviews. Morning Brew notes hidden ownership, debt, taxes, and stale round prices make private-founder estimates uncertain and cutoff-date sensitive.
BPM advises comparing the same share class and date across sources. Practical checks help: Match the share class and date before you compare two numbers.
- match headline valuation, 409A value, secondary price, or media estimate by date
- check whether the stake is common or preferred shares
- look for liquidation preferences, debt, and taxes behind the stake