They are in the top three of shareholders of most large companies.

Erm... Blackrock is a major shareholder in pretty much everything on the stock market... Pick a company.. any company.. Blackrock/vanguard are the major shareholders. Blackrock and Vanguard also are major shareholders in each other too....

could they be creating opportunities to short the stock?

What about Warren Buffett?

No more calls, we have a winner

So let me understand this.

1. Central bank prints the money for them
2. BlackRock doled out the money like a teller or atm machine
3. From which account, or accounts?

If true, this should be on every news channel.