What banks are using Stellar Lumens?

Could you kindly enlighten me on the banks that have adopted Stellar Lumens in their operations? I'm quite interested in understanding which financial institutions have recognized the potential of this cryptocurrency and how they're utilizing it to enhance their services. It would be helpful if you could provide a list of these banks or even offer insights into how they're integrating Stellar Lumens into their systems. Thank you in advance for your assistance in this matter.