Another Bay Area bank was affected Monday by uncertainty in the financial markets following the failure of Silicon Valley Bank on Friday. Stock in San Francisco-based First Republic Bank sank nearly 62 percent Monday and shares of other regional banks suffered losses, reportedly. On Sunday, regulators seized Signature Bank in New York after it failed. | By Keith Burbank Bay City News Another Bay Area bank was affected Monday by uncertainty in the financial markets following the failure of Silicon Valley Bank on Friday. Stock in San Francisco-based First Republic Bank sank nearly 62 percent Monday and shares of other regional banks suffered losses, reportedly. On Sunday, regulators seized Signature Bank