5,215 BTCe
What company is this? I assume you aren't referring to the defunct exchange.
Some say that Grayscale doesn't own any Bitcoin but that is for debate because they are Investment Trust, and their clients are buyers who own bitcoins.
If Grayscale is included, then we might as well include the holdings of all exchanges and other custodial platforms. Coinbase, Bitfinex, Bitmex, etc. That would be pointless.
The interesting metric is not how many coins a company has in custody (including those of their clients) but rather
how invested they are.