N-MFP LIVE N 2011-04-29 0000773674 S000005965 1 N N 002-99222 AMERICAN CENTURY INVESTMENT MANAGEMENT, INC. 801-08174 PRICEWATERHOUSECOOPERS, LLP KANSAS CITY MO AMERICAN CENTURY SERVICES, LLC American Century Services, LLC 0000794265 084-01406 N N N Treasury 56 56 2664288685.84 216791794.90 2874963.93 2878205516.81 0.0009 1.0002 2011-04-29 1.0002 2011-04-29 C000016429 2500.00 2878205516.81 1.00 -35013480.63 81666854.45 116680335.08 0.0001 1.0002 2011-04-29 1.0002 2011-04-29 U.S. Treasury U.S. Treasury 0.040 912795VE8 Treasury Debt First Tier Security 2011-05-05 2011-05-05 N N N 347000000.00 346998455.87 0.1206 N 347000000.00 347000000.00 U.S. Treasury U.S. Treasury 0.030 9127952Q3 Treasury Debt First Tier Security 2011-05-12 2011-05-12 N N N 290000000.00 289997341.68 0.1008 N 289999710.00 289999710.00 U.S. Treasury U.S. Treasury 0.025 9127952R1 Treasury Debt First Tier Security 2011-05-19 2011-05-19 N N N 400000000.00 399995013.75 0.1390 N 399999200.00 399999200.00 U.S. Treasury U.S. Treasury 0.057 9127952S9 Treasury Debt First Tier Security 2011-05-26 2011-05-26 N N N 362000000.00 361985595.82 0.1258 N 361998914.00 361998914.00 U.S. Treasury U.S. Treasury 0.875 912828KU3 Treasury Debt First Tier Security 2011-05-31 2011-05-31 N N N 100000000.00 100057900.00 0.0348 N 100078100.00 100078100.00 U.S. Treasury U.S. Treasury 4.875 912828FH8 Treasury Debt First Tier Security 2011-05-31 2011-05-31 N N N 70000000.00 70277656.52 0.0244 N 70276220.00 70276220.00 U.S. Treasury U.S. Treasury 0.111 9127952U4 Treasury Debt First Tier Security 2011-06-09 2011-06-09 N N N 25000000.00 24996993.75 0.0087 N 24999600.00 24999600.00 U.S. Treasury U.S. Treasury 0.091 9127952V2 Treasury Debt First Tier Security 2011-06-16 2011-06-16 N N N 100000000.00 99988372.22 0.0347 N 99999800.00 99999800.00 U.S. Treasury U.S. Treasury 0.095 9127952W0 Treasury Debt First Tier Security 2011-06-23 2011-06-23 N N N 65000000.00 64990909.04 0.0226 N 64998895.00 64998895.00 U.S. Treasury U.S. Treasury 0.096 912795X22 Treasury Debt First Tier Security 2011-06-30 2011-06-30 N N N 70000000.00 69988800.00 0.0243 N 69998600.00 69998600.00 U.S. Treasury U.S. Treasury 1.125 912828LF5 Treasury Debt First Tier Security 2011-06-30 2011-06-30 N N N 125000000.00 125214782.29 0.0435 N 125234375.00 125234375.00 U.S. Treasury U.S. Treasury 5.125 912828FK1 Treasury Debt First Tier Security 2011-06-30 2011-06-30 N N N 7000000.00 7058061.54 0.0025 N 7058520.00 7058520.00 U.S. Treasury U.S. Treasury 0.071 9127952Z3 Treasury Debt First Tier Security 2011-07-14 2011-07-14 N N N 35000000.00 34994891.94 0.0122 N 34999160.00 34999160.00 U.S. Treasury U.S. Treasury 0.067 9127953A7 Treasury Debt First Tier Security 2011-07-21 2011-07-21 N N N 125000000.00 124981156.25 0.0434 N 124995250.00 124995250.00 U.S. Treasury U.S. Treasury 0.060 912795X63 Treasury Debt First Tier Security 2011-07-28 2011-07-28 N N N 70000000.00 69989733.34 0.0243 N 69994960.00 69994960.00 U.S. Treasury U.S. Treasury 1 912828LG3 Treasury Debt First Tier Security 2011-07-31 2011-07-31 N N N 50000000.00 50088588.61 0.0174 N 50121100.00 50121100.00 U.S. Treasury U.S. Treasury 4.625 912828FS4 Treasury Debt First Tier Security 2011-08-31 2011-08-31 N N N 33000000.00 33481831.72 0.0116 N 33496287.00 33496287.00 U.S. Treasury U.S. Treasury 1 912828LW8 Treasury Debt First Tier Security 2011-09-30 2011-09-30 N N N 50000000.00 50178799.72 0.0174 N 50191400.00 50191400.00 U.S. Treasury U.S. Treasury 4.5 912828FU9 Treasury Debt First Tier Security 2011-09-30 2011-09-30 N N N 50000000.00 50888675.68 0.0177 N 50912100.00 50912100.00 U.S. Treasury U.S. Treasury 4.625 912828FW5 Treasury Debt First Tier Security 2011-10-31 2011-10-31 N N N 25000000.00 25546142.69 0.0089 N 25558600.00 25558600.00 U.S. Treasury U.S. Treasury 1.75 912828JU5 Treasury Debt First Tier Security 2011-11-15 2011-11-15 N N N 15000000.00 15121331.70 0.0053 N 15132420.00 15132420.00 U.S. Treasury U.S. Treasury 4.5 912828GA2 Treasury Debt First Tier Security 2011-11-30 2011-11-30 N N N 60000000.00 61472685.98 0.0214 N 61521120.00 61521120.00 U.S. Treasury U.S. Treasury 1.125 912828KA7 Treasury Debt First Tier Security 2011-12-15 2011-12-15 N N N 105000000.00 105530870.77 0.0367 N 105652155.00 105652155.00 U.S. Treasury U.S. Treasury 1.125 912828KB5 Treasury Debt First Tier Security 2012-01-15 2012-01-15 N N N 50000000.00 50286735.07 0.0175 N 50341800.00 50341800.00 U.S. Treasury U.S. Treasury 0.875 912828MJ6 Treasury Debt First Tier Security 2012-01-31 2012-01-31 N N N 20000000.00 20097756.85 0.0070 N 20105480.00 20105480.00 U.S. Treasury U.S. Treasury 1.375 912828KC3 Treasury Debt First Tier Security 2012-02-15 2012-02-15 N N N 10000000.00 10079603.04 0.0035 N 10094530.00 10094530.00