GLEN ALLEN, Va.–(BUSINESS WIRE)–Dynex Capital, Inc. (the "Company") (NYSE: DX), a REIT with a long track record of generating dividends from high-quality mortgage assets, today announced that Michael Sartori, Head of Capital Markets and Financial Planning and Analysis (FP&A), has been appointed Chief Financial Officer effective immediately. Mr. Sartori succeeds Robert Colligan, who is leaving the CFO role by mutual agreement. “We are pleased to have an executive of Mike’s caliber step int