Insurance Company, Anthem Blue Cross Blue Shield via Concentra Preferred Systems AET 5/28/09 Aetna AET 11/14/10 Aetna of Connecticut AET 8/24/17 AFBA 10/1/07 PFPC Inc., AFBA AFLAC American Family Life AFL 8/22/06 Assurance Co. AFL 4/19/06 Aflac AFL 3/16/17 Aflac American International Group (AIG), Indiana Office of Medical AIG 6/14/06 Excess, LLC ALK 7/26/17 Virgin America ALL 8/23/11 Allstate Financial AllState Insurance Huntsville ALL 6/29/06 branch ALSK 2/20/14 Alaska Communications ALU 5/18/07 Alcatel-Lucent AMCC 4/4/11 Applied Micro Circuits Corporation Advanced Micro Devices (AMD), AMD 1/13/13 Nvidia Advanced Micro Devices AMD 4/9/12 (AMD) AMP 12/25/05 Ameriprise Financial Inc. AMQ 1/30/10 Ameriquest Mortgage Company AMTD 9/14/07 TD Ameritrade Holding Corp. AMTD 12/1/06 TD Ameritrade AMTD 4/20/05 TD Ameritrade AMZN 1/29/11 AMZN 9/29/17 Whole Foods AutoNation Toyota of South AN 5/26/14 Austin Aetna, Nationwide, WellPoint Group Health Plans, Humana Medicare, Mutual of Omaha Insurance Company, Anthem Blue Cross Blue Shield via ANTM 12/12/06 Concentra Preferred Systems Aetna, Nationwide, WellPoint Group Health Plans, Humana Medicare, Mutual of Omaha Insurance Company, Anthem ANTM 12/12/06 Blue Cross Blue Shield via
Insurance Company, Anthem Blue Cross Blue Shield via Concentra Preferred Systems AET 5/28/09 Aetna AET 11/14/10 Aetna of Connecticut AET 8/24/17 AFBA 10/1/07 PFPC Inc., AFBA AFL 8/22/06 AFLAC American Family Life Assurance Co. AFL 4/19/06 Aflac AFL 3/16/17 Aflac AIG 6/14/06 American International Group (AIG), Indiana Office of Medical Excess, LLC ALK 7/26/17 Virgin America ALL 8/23/11 Allstate Financial ALL 6/29/06 AllState Insurance Huntsville branch ALSK 2/20/14 Alaska Communications ALU 5/18/07 Alcatel-Lucent AMCC 4/4/11 Applied Micro Circuits Corporation AMD 1/13/13 Advanced Micro Devices (AMD), Nvidia AMD 4/9/12 Advanced Micro Devices (AMD) AMP 12/25/05 Ameriprise Financial Inc. AMQ 1/30/10 Ameriquest Mortgage Company AMTD 9/14/07 TD Ameritrade Holding Corp. AMTD 12/1/06 TD Ameritrade AMTD 4/20/05 TD Ameritrade AMZN 1/29/11 AMZN 9/29/17 Whole Foods AN 5/26/14 AutoNation Toyota of South Austin ANTM 12/12/06 Aetna, Nationwide, WellPoint Group Health Plans, Humana Medicare, Mutual of Omaha Insurance Company, Anthem Blue Cross Blue Shield via Concentra Preferred Systems ANTM 12/12/06 Aetna, Nationwide, WellPoint Group Health Plans, Humana Medicare, Mutual of Omaha Insurance Company, Anthem Blue Cross Blue Shield via
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