What, no comments on my really long and extensive set of calculations of share count for the go-private deal? Really?
TSLA Market Action: 2018 Investor Roundtable
OK, so FWIW, the Saudis could buy their position up to about 34.11 million shares (i.e. they could buy about 29.00 million more than my low-end estimate of what they have now) before they hit 20% (which would probably trigger CFIUS review). Or they could buy 11.94 million more shares before they hit 10% (which would probably trigger CFIUS review if they're buying *voting* shares). I'm going to assume the Saudis will accept non-voting shares, and I'm assuming they have the $12.18 billion needed to buy 29 million shares.
Now, CFIUS will probably accept Saudi investment due to the US government being in bed with the Saudis (sigh). But if it didn't, this would mean that under Musk's guess, they'd need third-party funding for about 5.37 million shares ($2.2 billion); if buying out half the miscellaneous stockholders, 8.48 million shares or $3.56 bililon.
Worst case where the Saudis will only go up to 20% and all the miscellaneous shareholders want out would require $33.47 billion of "outside" money.
Adam Jonas (yeah, I know) says that Musk's SpaceX stock is considered to be worth about $15 billion right now. Musk will probably still be able to borrow against Tesla stock when it's private; if he borrows against SpaceX, I think it would be conservative to assume he can get $7 bililon. (Though he may have borrowed against some of it already.) So he could fund some of this himself if he had to.
Elon Musk’s SpaceX could play 'crucial role' in his plan to take Tesla private: Morgan Stanley
We haven't even started talking about other possible funders, even though we know Silver Lake Kraftwerk wants in.
The big question is simply how many of the existing investors want to stay in. We're all guessing, which is why I'e run so many different scenarios here. Here's another, better way of looking at it (remembering that shorts have to cover):
$10 billion in funding will allow for 61.29 million shares to be bought out at $420
$15 billion in funding will allow for 73.19 million shares to be bought out at $420
$20 billion in funding will allow for 85.10 million shares to be bought out at $420
$25 billion in funding will allow for 97.00 million shares to be bought out at $420
$30 billion in funding will allow for 108.91 million shares to be bought out at $420
$35 billion in funding will allow for 120.81 million shares to be bought out at $420
$40 billion in funding will allow for 132.71 million shares to be bought out at $420
$45 billion in funding will allow for 144.62 million shares to be bought out at $420
There are about 142.44 million shares held by miscellaneous investors (assuming Musk, Tencent, Saudis, Bailie Gifford, and insiders keep their shares).