[JumpCrisscross]

> how do you know what trades took place, and how many shares were traded, and at what price?

Company generally has these records. Various other sources, e.g. PitchBook, compile them. In some jurisdictions (e.g. UK and India) they have to be publicly announced, though that's becoming less common.

TL; DR It is incredibly wrong to suggest private companies don't have a market cap. As in finance 101 wrong.

[zemo]

> Same way you do for a public company. From trades and valuations.

no, it's not the same, because the information is not publicly available. They are the same in that in both cases you multiply two numbers together; they are not the same inasmuch as your ability to know those numbers is vastly different. To say they're the same is misleading.

[woooooo]

You don't think lack of liquidity, small number of transactions etc casts some doubt on the "true value" of those shares?

Did they really go from some big number to some small number in an eyeblink with this latest transaction?

[zemo]

look at their about page, they have access that you don't have. They literally don't understand.