4/30/24 American Electric Power Co. Inc. 10-Q 3/31/24 103:36M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 2/26/24 American Electric Power Co. Inc. 10-K 12/31/23 142:74M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 11/2/23 American Electric Power Co. Inc. 10-Q 9/30/23 105:43M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 7/27/23 American Electric Power Co. Inc. 10-Q 6/30/23 103:135M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 5/4/23 American Electric Power Co. Inc. 10-Q 3/31/23 100:134M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 2/23/23 American Electric Power Co. Inc. 10-K 12/31/22 147:99M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 10/27/22 American Electric Power Co. Inc. 10-Q 9/30/22 99:54M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 7/27/22 American Electric Power Co. Inc. 10-Q 6/30/22 98:52M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 4/28/22 American Electric Power Co. Inc. 10-Q 3/31/22 100:155M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 2/24/22 American Electric Power Co. Inc. 10-K 12/31/21 137:99M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 10/28/21 American Electric Power Co. Inc. 10-Q 9/30/21 102:55M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 7/22/21 American Electric Power Co. Inc. 10-Q 6/30/21 98:52M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 4/29/21 AEP Transmission Co., LLC S-3 11:825K 4/22/21 American Electric Power Co. Inc. 10-Q 3/31/21 95:43M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co. 2/25/21 American Electric Power Co. Inc. 10-K 12/31/20 143:99M AEP Texas Inc. AEP Transmission Co., LLC Appalachian Power Co. Indiana Michigan Power Co. Ohio Power Co. Public Service Co. of Oklahoma Southwestern Electric Power Co.