MongoDB CEO resigned yesterday after only one year on the job to join Meta. The stock dropped ~18% on the announcement, wiping out around $6 billion in market value.

The announcement came only one year into his tenure, which is unusual, but it’s important to note that there was no other news concerning the company.

- MongoDB reaffirmed both Q3 and full-year FY2027 guidance this morning. There was no revenue warning, earnings revision, or deterioration

- There was no major analyst downgrade driving the move. In fact, Citizens maintained its Buy rating and $519 target.

- The SEC filing says Desai told the company on Thursday, September 24, and explicitly states that his resignation was not because of a disagreement concerning MongoDB’s operations, policies or practices.

Executive exits are often planned over years and a succession plan is put in place. But they can also be sudden, especially when the executive is looking to join a competitor. No company would allow you to stay on in any capacity if there’s something you can take to your next employer. Same is true with sales roles. When you give your resignation you’re usually walked out immediately.

How much does senior leadership matter?

We have a clear counterfactual. One day you have CJ Desai as CEO, the next day you don’t. It’s not perfect as a CEO departure after only a one year tenure is a negative signal. But again, there’s nothing to suggest there was deterioration in the business. If there is something Desai was hiding, he would have lied to the SEC and would likely face legal repercussions.

The simplest explanation for his departure is that Meta gave him a lot more money. They would have to. He left a very high profile job with a lot of autonomy to be an employee. This also doesn’t make him look very good.

CJ Desai was compensated relatively well by normie standards:

- $500k base salary

- $350k target annual bonus

- $2.5M sign-on cash bonus, half after 6 months and half after 12 months

- $15M RSU sign-on grant, vesting over two years

- A large performance-stock-unit grant

MongoDB’s SEC compensation table valued his 2026 stock awards at $52.6 million at grant date.

So how much is he worth? My guess would be more than the $50 million he was being paid at MongoDB, but capped by the $6 billion MongoDB lost in market cap on his departure.

Desai spent his formative years at ServiceNow. During his time there, revenue grew from ~$1.5B to more than $10B. When he joined, the company was worth $12 billion and by the time he left it was $163 billion.

Senior leadership matters. This talk of CEOs making X times more than the median employee and somehow this is wrong is so disconnected from reality.

Why would Meta pay this guy 9 figures to join? They can b dumb or greedy, but not both.

Why would investors sell the stock at a 20% discount on his departure as CEO if he’s not worth that much? Some of that is negative internal signal, but 20% is a huge drop.

The problem is many people conflate salary with moral worth. This guy isn’t morally superior to anyone else at the org, but in the role of CEO his impact on the business is more than 100x that of a median employee. And despite the generous MongoDB pay package, we was worth a lot more in hindsight and losing him was a costly mistake.

Another example is when Steve Jobs left Apple in 2011 and the stock dropped $10 billion in market cap. Or when Frank Slootman left Snowflake in 2024 and the stock dropped 20% or $15 billion (that one also corresponded with weaker than expected guidance but the drop can’t be explained by that alone).

People have trouble understanding human ability is not normally distributed. In something like height we see normal distributions. No one is 100 times taller than the median person.

But when it comes to some complex fields that require creativity, you see widely disparate abilities. The best authors are more than 100x better than the median wordsmith. The best engineers are more than 100x better than the median engineer. It’s not even right to compare them because they can do things that others can’t. No amount of median scientists could come up with general relativity.

It’s like watching 3 professional soccer players play against 100 children. The outcomes are pretty much what you would expect.

So why is it so hard to believe that executive leadership matters? Zuck gets it. So do investors. Everyone else just has to get over the ick factor.