PennyMac Mortgage Investment Trust Announces Promotions of Executive Officers WESTLAKE VILLAGE, Calif.--(BUSINESS WIRE)--PennyMac Mortgage Investment Trust (NYSE: PMT) today announced changes in the roles of certain of its executive officers in conjunction with organizational changes announced today by PennyMac Financial Services, Inc. (NYSE: PFSI), PMT’s manager and service provider. Andrew S. Chang, currently Senior Managing Director and Chief Financial Officer, will assume the new role of Senior Managing Director and Chief Operating Officer. Daniel S. Perotti, current