Northern Trust, the US asset management firm, has boosted its Minneapolis and San Diego offices with new hires. Deb Finnegan has joined the La Jolla, San Diego office as managing director of the private client services group, where she will manage a team that works with wealthy clients and businesses in the area. She was previously a private client manager with US Trust, part of Bank of America Private Wealth Management. James Seidel has joined the Minnesota office as a wealth strategist. Seidel previously worked in wealth management at Morgan Stanley Smith Barney and RBC Wealth Management.