The news comes after First Republic's stock was pummeled in recent days, sparked by the collapse of Silicon Valley Bank last Friday and Signature Bank over the weekend.

A group of financial institutions has agreed to deposit $30 billion in First Republic Bank in what’s meant to be a sign of confidence in the banking system, the banks announced Thursday afternoon.

Bank of America, Wells Fargo, Citigroup and JPMorgan Chase will contribute about $5 billion apiece, while Goldman Sachs and Morgan Stanley will deposit around $2.5 billion, the banks said in a news release. Truist, PNC, U.S. Bancorp, State Street and Bank of New York Mellon will deposit about $1 billion each.

“This action by America’s largest banks reflects their confidence in First Republic and in banks of all sizes, and it demonstrates their overall commitment to helping banks serve their customers and communities,” the group said in a statement.The deposits would be obligated to stay at First Republic for at least 120 days, sources told CNBC’s David Faber. Regional bank stocks initially fell on Thursday but reversed higher after reports from Faber and others about the development of the deposit plan.The news comes after First Republic’s stock has been pummeled in recent days, sparked by the collapse of Silicon Valley Bank last Friday and Signature Bank over the weekend. Both of those banks had a high number of uninsured deposits, as did First Republic, leading to concern that customers would pull their money out. The new deposits from the major banks are uninsured.First Republic’s stock, which closed at $115 per share on March 8, traded below $20 at one