https://money.stackexchange.com/a/155106 the argument is that it doesn't dilute the stock because the thing they bought makes the company that much more worth. If they trade newly created shares for a metric ton of gold, that logic seems quite plausible, but it get's more sketchy when things like IP or companies are bought. Or as in this case even more sketchy, where I'd argue this one person will not raise the value of Meta by $250M, effectively scamming the investors.