It looks like Elon Musk is a bit envious of Mark Zuckerberg's control over Meta

• Elon Musk told Tesla's board he wants 25% voting control at the company.

• While he would be "fine" with a dual-class vote structure, that's "impossible" to achieve post-IPO.

• He took the opportunity to slam Mark Zuckerberg — who has super-voting shares at Meta.

Elon Musk and Mark Zuckerberg have been trading barbs for years. And earlier this week, Musk found another reason to gripe at the other CEO and founder — about the company structure that gives him a big chunk of voting control over Meta — even as Musk himself seeks to tighten his hold on Tesla.

Musk appeared to give Tesla's board an ultimatum on Monday, saying he wants 25% voting control at Tesla or he'll stop growing AI development at the electric-car maker. (He currently has about a 13% stake in Tesla and had around 22% before he sold off some of his shares to fund his Twitter purchase in 2022.)

One way of getting that would be via a dual-class stock structure. This isn't uncommon and could mean Musk wouldn't necessarily get more shares but that the ones he held would deliver more voting power. One problem: while Musk would be "fine" with that, he's been "told it is impossible to achieve post-IPO in Delaware," he wrote on X, formerly Twitter. Tesla IPOed in 2010.

Zuckerberg, however, has supervoting shares at Meta that are equivalent to 10 votes per share. The company's dual-class stock structure provides Zuckerberg and select executive managers and directors with them. So, while Zuckerberg only owns about 13% of Meta's stock, he holds over 50% of total voting power, meaning he essentially has a complete veto over other shareholders.

And the fact Musk can't now change Tesla's structure seems to have irked the billionaire — and made him sound a bit envious.

"It's weird that a crazy multi-class share structure like Meta has, which gives the next 20+ generations of Zuckerbergs control, is fine pre-IPO, but even a reasonable dual-class is not allowed post-IPO," Musk wrote.

It's not the first time Musk has criticized Zuckerberg's control of Meta, but he now appears to want at least half that level at Tesla — though he doesn't seem to want to make himself irreplaceable.

"If I have 25%, it means I am influential, but can be overridden if twice as many shareholders vote against me vs for me," he wrote on X. "At 15% or lower, the for/against ratio to override me makes a takeover by dubious interests too easy."

Tesla did not immediately respond to emails from Business Insider requesting further comment.

An "unusual" plan

Some Tesla shareholders have spoken out against Musk's request. And it could be a risky decision, according to finance experts, who pointed to Musk's unorthodox behavior in recent months, allegations of illegal drug use, as well as the negative impact of Musk's Twitter acquisition on Tesla's stock.