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1. The UBS One Source website for Builders FirstSource (BLDR) will cease to be updated as of close of market on Monday, October 31, 2022, due to Builders FirstSource transition to another administrative services provider. Please contact your new service prov
   ider or BLDR with questions on your stock benefit services. All data on this website will be static as of this date. You will continue to be able to transact on long shares, view your account, and retrieve your monthly statements, transaction confirmation
   s and tax reports online until April 30, 2023