July 10 (Reuters) - Morgan Stanley (MS.N) has hired senior investment banker Marco Caggiano from JPMorgan Chase & Co (JPM.N), where he led the bank's North America mergers and acquisitions (M&A) business, people familiar with the matter said on Monday. Caggiano, a veteran investment banker who spent 23 years with JPMorgan, will join Morgan Stanley as vice chairman of M&A, the sources said. JPMorgan and Morgan Stanley declined to comment. Caggiano trained as a lawyer and worked at Paul Hastings before he joined JPMorgan. He was co-head of North America M&A before Chris Roop, his other co-head, exited JPMorgan last year to join Jefferies Financial Group Inc (JEF.N).

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Persons: Morgan Stanley, Marco Caggiano, Caggiano, Elon Musk, Paul Hastings, Chris Roop, Svea Herbst, Bayliss, Anirban Sen, Greg Roumeliotis Organizations: JPMorgan Chase &, JPMorgan, Twitter Inc, Elon, Zynga, Hasbro Inc, Alta Fox, Jefferies Financial Group Inc, Svea, Thomson Locations: America, Rhode Island, New York