N-MFP3 0001060517 XXXXXXXX 2026-02-28 UBS Series Funds 0001060517 54930058UKPXVB81RJ71 UBS RMA Government Money Market Fund 549300WUNTYEEH9XHV55 S000053134 1 N N 333-52965 UBS ASSET MANAGEMENT (AMERICAS) LLC 801-34910 Ernst & Young LLP New York NY UBS ASSET MANAGEMENT (AMERICAS) LLC BNY Mellon Investment Servicing (US) Inc. 0000849542 084-01761 Y 0001403166 Government Master Fund S000054189 N N Government N N 1 1 18160420836.65 19700592536.21 0.6574 0.7132 2026-02-02 17901275385.14 19441550688.42 0.6503 0.7063 2026-02-03 17250167169.51 18790601729.95 0.6418 0.6992 2026-02-04 17403402497.26 18943977806.26 0.6438 0.7008 2026-02-05 17515779797.52 19056473267.63 0.6452 0.7020 2026-02-06 16965057927.92 18709943025.57 0.6379 0.7035 2026-02-09 16761389470.65 18506441389.27 0.6299 0.6955 2026-02-10 16617796643.08 18516131396.66 0.6133 0.6833 2026-02-11 16062226185.04 17836731201.04 0.5985 0.6646 2026-02-12 15825954812.02 17600592313.08 0.5928 0.6593 2026-02-13 15736755247.40 17511955890.25 0.5831 0.6489 2026-02-17 15371657256.00 16993850814.92 0.5751 0.6357 2026-02-18 15351448424.01 16717803233.41 0.5757 0.6270 2026-02-19 15521459774.13 16765967334.29 0.5810 0.6275 2026-02-20 15370532605.63 16624579068.16 0.5740 0.6208 2026-02-23 14748807313.35 16002964755.65 0.5638 0.6118 2026-02-24 14603773600.86 15858048996.43 0.5614 0.6096 2026-02-25 14467351587.67 15721735784.79 0.5590 0.6075 2026-02-26 14843139662.60 16097639477.65 0.5653 0.6130 2026-02-27 0.00 1365447748.22 0.00 82246.23 3444563.24 1362085431.21 1362098048.3600 Y 1.0000 0.0375 2026-02-02 0.0375 2026-02-03 0.0375 2026-02-04 0.0375 2026-02-05 0.0374 2026-02-06 0.0374 2026-02-09 0.0374 2026-02-10 0.0374 2026-02-11 0.0374 2026-02-12 0.0374 2026-02-13 0.0374 2026-02-17 0.0374 2026-02-18 0.0374 2026-02-19 0.0374 2026-02-20 0.0374 2026-02-23 0.0374 2026-02-24 0.0373 2026-02-25 0.0373 2026-02-26 0.0373 2026-02-27 1.0001 2026-02-02 1.0000 2026-02-03 1.0000 2026-02-04 1.0000 2026-02-05 1.0000 2026-02-06 1.0001 2026-02-09 1.0001 2026-02-10 1.0000 2026-02-11 1.0000 2026-02-12 1.0000 2026-02-13 1.0000 2026-02-17 1.0000 2026-02-18 1.0000 2026-02-19 1.0000 2026-02-20 1.0000 2026-02-23 1.0000 2026-02-24 1.0000 2026-02-25 1.0000 2026-02-26 1.0000 2026-02-27 N N Class A C000167202 5000.00 1362085431.21 1362098048.3600 1.0001 2026-02-02 1.0000 2026-02-03 1.0000 2026-02-04 1.0000 2026-02-05 1.0000 2026-02-06 1.0001 2026-02-09 1.0001 2026-02-10 1.0000 2026-02-11 1.0000 2026-02-12 1.0000 2026-02-13 1.0000 2026-02-17 1.0000 2026-02-18 1.0000 2026-02-19 1.0000 2026-02-20 1.0000 2026-02-23 1.0000 2026-02-24 1.0000 2026-02-25 1.0000 2026-02-26 1.0000 2026-02-27 70717132.41 1069095172.74 2026-02-02 1113775146.40 1099237623.73 2026-02-03 89702507.99 100463190.32 2026-02-04 132524571.54 95647583.38 2026-02-05 78382386.74 88235340.24 2026-02-06 87074518.16 159872272.37 2026-02-09 92745547.79 106173532.33 2026-02-10 103517492.30 45515690.67 2026-02-11 68388657.55 75363718.94 2026-02-12 62879777.27 81622945.04 2026-02-13 41445119.01 61364426.08 2026-02-17 118553880.51 68047561.85 2026-02-18 96556332.24 77459295.68 2026-02-19 253664668.22 81027822.15 2026-02-20 44182146.29 240380749.35 2026-02-23 235583951.73 223024363.65 2026-02-24 51148895.87 38443075.86 2026-02-25 38261199.45 86966607.34 2026-02-26 449185927.12 55169720.05 2026-02-27 3228289858.59 3853110691.77 0.0313 2026-02-02 0.0312 2026-02-03 0.0312 2026-02-04 0.0311 2026-02-05 0.0305 2026-02-06 0.0305 2026-02-09 0.0304 2026-02-10 0.0304 2026-02-11 0.0304 2026-02-12 0.0303 2026-02-13 0.0304 2026-02-17 0.0304 2026-02-18 0.0304 2026-02-19 0.0306 2026-02-20 0.0306 2026-02-23 0.0306 2026-02-24 0.0306 2026-02-25 0.0305 2026-02-26 0.0307 2026-02-27 N 0.00 Broker-dealer 0.2636 0.00 N Government Master Fund Government Master Fund 976WHL907 54930015XY4J2ENG8G36 0001403166 976WHL907 Investment Company Y 2026-03-02 2026-03-02 2026-03-02 N N N 0.0000 1365447748.22 1365447748.22 1.0000 N Y Y N The master-feeder funds are parties to a written daily liquidity agreement; consistent with SEC staff interpretative guidance, ownership interests in the master fund are categorized as a Daily Liquid Asset/Weekly Liquid Asset by the feeder funds. UBS Series Funds 2026-03-06 /s/Rose Ann Bubloski Rose Ann Bubloski Vice President