SEC Form 4: Prudential Financial Inc disposed of $16,000,000 worth of Series D Mandatory Redeemable Preferred Stock (160 units at $100,000.00), acquired $16,000,000 worth of Series I Mandatory Redeemable Preferred Stock (160 units at $100,000.00) and bought $10,000,025 worth of Series M Mandatory Redeemable Preferred Stock (285,715 units at $35.00)