PacWest Financial institution, which by no means totally recovered from its hammering throughout this yr’s banking disaster, will probably be absorbed by a smaller lender, Banc of California, the banks introduced on Tuesday.

The event was a humbling finish for the 24-year-old PacWest, a as soon as fast-growing Los Angeles financial institution whose purchasers fled amid turmoil for regional lenders this yr. The PacWest title will probably be retired, and the mixed banks will function underneath the Banc of California title. Jared Wolff, the chief government of Banc of California, will run the brand new entity.

In a sign of how weakened PacWest has develop into, the mixed financial institution can have simply $30.5 billion in deposits — significantly lower than the $34 billion that PacWest had at first of the yr.

The banks stated the mixed firm “can have the energy and market place to help the banking wants of small and medium-sized companies in California.” The non-public fairness corporations Centerbridge and Warburg Pincus will make investments $400 million within the deal, the banks stated.

Regional banks have been underneath strain since March, when Silicon Valley Financial institution’s collapse put a highlight on midsize lenders. Many such banks say it has develop into more and more tough for them to compete with the nation’s largest establishments as depositors prize the relative stability that large banks can supply.

PacWest has been probably the most imperiled regional banks. It has been quickly shrinking this yr, partially by promoting off loans to rivals. Its inventory was lately buying and selling round $10 a share, one-third of its peak in August.

The transaction, which is topic to approval by regulators, turns the standard mergers-and-acquisition playbook on its head; sometimes it’s the bigger firm that buys the smaller one. Banc of California had 27 full-service branches, whereas PacWest had double that. (The brand new entity could possibly be planning to shut some; Tuesday’s announcement guarantees “greater than 70” branches in California.)

PacWest buyers appeared upset by the event. Its shares cratered 27 p.c in afternoon buying and selling on Tuesday, after The Wall Avenue Journal reported {that a} deal was imminent.

Banc of California shares rose 11 p.c.