No. FDIC is per depositor, per bank, per ownership category.

So if you have $300k in Bank A, and $180k in Bank B, and then suddenly both Bank A and Bank B fail, the US Federal Government promises you'll get $250k from Bank A and $180k from Bank B, and pretty quickly - but the remaining $50k from Bank A depends on what happens when they try to wind up Bank A, if it's a complete wreck you may see nothing or almost nothing back or it may take years to get 10¢ on the dollar for the remaining amount.

In some cases you may be able to create multiple ownership categories that help you, and I guess if you really had $16M you might do stuff like set up a multi-beneficiary trust fund that can have $1M in it with four beneficiaries for an additional $250k per person FDIC insured.

FDIC is presently $250,000 lifetime limit.