N-MFP3 0000889512 XXXXXXXX 2026-02-28 Legg Mason Partners Institutional Trust 0000889512 54930003LJE4ZPPMRV82 Western Asset Premier Institutional U.S. Treasury Reserves 549300FS1J68EF5THY28 S000066841 2 N N 033-49552 Franklin Templeton Fund Adviser LLC 801-66785 Western Asset Management Company 801-08162 PricewaterhouseCoopers LLP Baltimore MD BNY Mellon Investment Servicing (US) Inc. 0000849542 084-01761 Y 0001140869 U.S. Treasury Reserves Portfolio S000018042 N N Government N N 6 6 19221182059.06 19221182059.06 0.9993 0.9993 2026-02-02 17166318646.68 17166318646.68 0.9992 0.9992 2026-02-03 17214205755.55 17214205755.55 0.9991 0.9991 2026-02-04 17834022462.95 17834022462.95 0.9993 0.9993 2026-02-05 17797592539.68 17797592539.68 0.9991 0.9991 2026-02-06 18679048837.41 18679048837.41 0.9991 0.9991 2026-02-09 17608567705.10 17608567705.10 0.9990 0.9990 2026-02-10 17830825276.06 17830825276.06 0.9989 0.9989 2026-02-11 18473811400.32 18473811400.32 0.9989 0.9989 2026-02-12 17343091852.72 17343091852.72 0.9987 0.9987 2026-02-13 17288952177.93 17288952177.93 0.9987 0.9987 2026-02-17 17139036074.06 17139036074.06 0.9987 0.9987 2026-02-18 18025552493.65 18025552493.65 0.9987 0.9987 2026-02-19 18209008784.86 18209008784.86 0.9986 0.9986 2026-02-20 17933604132.40 17933604132.40 0.9986 0.9986 2026-02-23 17113025855.67 17113025855.67 0.9985 0.9985 2026-02-24 17289206815.16 17289206815.16 0.9984 0.9984 2026-02-25 17778928582.79 17778928582.79 0.9985 0.9985 2026-02-26 17363934243.56 17363934243.56 0.9984 0.9984 2026-02-27 0.00 1532186627.30 0.00 22863.09 4615090.10 1527594400.29 1527604173.8500 Y 1.0000 0.0372 2026-02-02 0.0372 2026-02-03 0.0372 2026-02-04 0.0372 2026-02-05 0.0372 2026-02-06 0.0372 2026-02-09 0.0372 2026-02-10 0.0372 2026-02-11 0.0372 2026-02-12 0.0372 2026-02-13 0.0372 2026-02-17 0.0372 2026-02-18 0.0372 2026-02-19 0.0372 2026-02-20 0.0372 2026-02-23 0.0372 2026-02-24 0.0372 2026-02-25 0.0372 2026-02-26 0.0372 2026-02-27 1.0000 2026-02-02 1.0000 2026-02-03 1.0000 2026-02-04 1.0000 2026-02-05 1.0000 2026-02-06 1.0000 2026-02-09 1.0000 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 PC C000215196 1.00 1497333774.66 1497343411.8600 1.0000 2026-02-02 1.0000 2026-02-03 1.0000 2026-02-04 1.0000 2026-02-05 1.0000 2026-02-06 1.0000 2026-02-09 1.0000 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 548077.52 113223749.42 2026-02-02 0.00 3089140.42 2026-02-03 10533492.86 0.00 2026-02-04 106759028.89 0.00 2026-02-05 23854930.89 0.00 2026-02-06 0.00 38970554.49 2026-02-09 94832456.35 0.00 2026-02-10 0.16 13645516.05 2026-02-11 0.00 40804312.57 2026-02-12 0.00 53736454.82 2026-02-13 87083716.91 0.00 2026-02-17 19106983.68 0.00 2026-02-18 250000000.00 54866691.12 2026-02-19 0.00 24868222.56 2026-02-20 0.00 28417362.12 2026-02-23 1000000.00 26797613.64 2026-02-24 6105615.56 0.00 2026-02-25 21846241.64 0.00 2026-02-26 0.00 49818548.80 2026-02-27 621670544.46 448238166.01 0.0358 2026-02-02 0.0358 2026-02-03 0.0358 2026-02-04 0.0358 2026-02-05 0.0358 2026-02-06 0.0358 2026-02-09 0.0358 2026-02-10 0.0358 2026-02-11 0.0358 2026-02-12 0.0358 2026-02-13 0.0358 2026-02-17 0.0358 2026-02-18 0.0358 2026-02-19 0.0358 2026-02-20 0.0358 2026-02-23 0.0358 2026-02-24 0.0358 2026-02-25 0.0358 2026-02-26 0.0358 2026-02-27 Y 240375.20 Non-financial corporation 0.6455 0.00 Non-financial corporation 0.3008 0.00 N CC C000215197 200000000.00 30260625.63 30260761.9900 1.0000 2026-02-02 1.0000 2026-02-03 1.0000 2026-02-04 1.0000 2026-02-05 1.0000 2026-02-06 1.0000 2026-02-09 1.0000 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 1685202337.44 0.00 2026-02-02 490500000.00 1500000000.00 2026-02-03 0.00 0.00 2026-02-04 0.00 0.00 2026-02-05 0.00 0.00 2026-02-06 0.00 0.00 2026-02-09 10000000.00 0.00 2026-02-10 0.00 0.00 2026-02-11 0.00 0.00 2026-02-12 0.00 490500000.00 2026-02-13 0.00 0.00 2026-02-17 0.00 0.00 2026-02-18 0.00 0.00 2026-02-19 0.00 0.00 2026-02-20 0.00 0.00 2026-02-23 0.00 0.00 2026-02-24 0.00 0.00 2026-02-25 0.00 0.00 2026-02-26 0.00 195000000.00 2026-02-27 2185702337.44 2185500000.00 0.0360 2026-02-02 0.0360 2026-02-03 0.0360 2026-02-04 0.0360 2026-02-05 0.0360 2026-02-06 0.0360 2026-02-09 0.0360 2026-02-10 0.0360 2026-02-11 0.0360 2026-02-12 0.0360 2026-02-13 0.0360 2026-02-17 0.0360 2026-02-18 0.0360 2026-02-19 0.0360 2026-02-20 0.0360 2026-02-23 0.0360 2026-02-24 0.0360 2026-02-25 0.0360 2026-02-26 0.0360 2026-02-27 Y 80345.12 Non-financial corporation 0.095 0.00 Non-financial corporation 0.0704 0.00 Non-financial corporation 0.516 0.00 Non-financial corporation 0.2161 0.00 Non-financial corporation 0.0667 0.00 N U.S. Treasury Reserves Portfolio U.S. Treasury Reserves Portfolio NA LMUSTREASURYRES Investment Company Y Fitch, Inc. NR Moody's Investors Service, Inc. NR Standard and Poor's Ratings Services NR 2026-03-02 2026-03-02 2026-03-02 N N N 0.0000 1532186627.30 1532186627.30 1.0000 N Y Y N Legg Mason Partners Institutional Trust 2026-03-06 /s/Christopher Berarducci Christopher Berarducci Principal Financial Officer