N-MFP2 0000898745 XXXXXXXX 2017-12-31 0000898745 S000060089 1 N N 033-59474 Principal Global Investors, LLC 801-55959 Ernst & Young LLP Minneapolis MN Principal Global Investors, LLC Principal Shareholder Services Inc 0001020337 084-05657 N N N Government/Agency N 38 38 0.00 0.00 0.00 886135491.47 1025335876.38 0.00 0.00 0.00 2256638165.73 3231834281.29 0.0000 0.0000 0.0000 0.3196 0.2611 0.0000 0.0000 0.0000 0.8138 0.8229 3054100.48 3924332760.75 3924332760.75 99788.93 936878.75 3926549771.41 3926187070.12 1.0000 0.0128 0.0000 0.0000 0.0000 0.9998 1.0001 C000196721 0.01 3926549771.41 3926187070.12 0.0000 0.0000 0.0000 0.9998 1.0001 0.00 0.00 0.00 0.00 0.00 0.00 2772703558.25 0.00 1248985689.19 95502177.32 4021689247.44 95502177.32 0.0114 Y Principal Global Investors, LLC, Total Operating Expense Limit, 12265.47; Principal Global Investors, LLC, Management Fee Reduction, 13986.30; Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.22% 313589SS3 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-02-05 2018-02-05 2018-02-05 N N N 0.0122 49940694.44 49940694.44 0.0127 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.24% 313589ST1 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-02-06 2018-02-06 2018-02-06 N N N 0.0124 49938000.00 49938000.00 0.0127 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.27% 313589SE4 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-01-24 2018-01-24 2018-01-24 N N N 0.0127 22481815.63 22481815.63 0.0057 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.24% 313589RX3 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-01-17 2018-01-17 2018-01-17 N N N 0.0124 29983466.67 29983466.67 0.0076 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.24% 313589TH6 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-02-20 2018-02-20 2018-02-20 N N N 0.0124 49913888.89 49913888.89 0.0127 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.33% 313589UN1 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-03-21 2018-03-21 2018-03-21 N N N 0.0133 49854069.45 49854069.45 0.0127 N N N N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.24% 313589SN4 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-02-01 2018-02-01 2018-02-01 N N N 0.0124 39957288.89 39957288.89 0.0102 N N Y N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.27% 313589TW3 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-03-05 2018-03-05 2018-03-05 N N N 0.0127 49888875.00 49888875.00 0.0127 N N N N Fannie Mae Discount Notes Fannie Mae Discount Notes, 1.28% 313589UE1 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-03-13 2018-03-13 2018-03-13 N N N 0.0128 49873777.78 49873777.78 0.0127 N N N N Federal Farm Credit Bank Federal Farm Credit Bank, 1.05% 313313RG5 U.S. Government Agency Debt Y Fitch F1+ Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0105 14999562.50 14999562.50 0.0038 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TQ9 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-27 2018-02-27 2018-02-27 N N N 0.0130 99794166.67 99794166.67 0.0254 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TP1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-26 2018-02-26 2018-02-26 N N N 0.0130 29939333.34 29939333.34 0.0076 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TR7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-28 2018-02-28 2018-02-28 N N N 0.0130 10412146.57 10412146.57 0.0027 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.28% 313385TS5 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-01 2018-03-01 2018-03-01 N N N 0.0128 49895111.11 49895111.11 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.32% 313385TR7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-28 2018-02-28 2018-02-28 N N N 0.0132 49893666.67 49893666.67 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.28% 313385TP1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-26 2018-02-26 2018-02-26 N N N 0.0128 59880533.33 59880533.33 0.0153 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TJ5 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-21 2018-02-21 2018-02-21 N N N 0.0130 59889500.00 59889500.00 0.0153 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TD8 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-16 2018-02-16 2018-02-16 N N N 0.0130 84859188.88 84859188.88 0.0216 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TK2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-22 2018-02-22 2018-02-22 N N N 0.0130 49906111.11 49906111.11 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TL0 U.S. Government Agency Debt Y Fitch NR Moody's NR Standard & Poor's NR 2018-02-23 2018-02-23 2018-02-23 N N N 0.0130 37628123.90 37628123.90 0.0096 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TL0 U.S. Government Agency Debt Y Fitch NR Moody's NR Standard & Poor's NR 2018-02-23 2018-02-23 2018-02-23 N N N 0.0130 24952152.77 24952152.77 0.0064 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.36% 313385UV6 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-28 2018-03-28 2018-03-28 N N N 0.0136 24918777.78 24918777.78 0.0063 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.34% 313385UL8 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-19 2018-03-19 2018-03-19 N N N 0.0134 49857229.17 49857229.17 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.37% 313385VX1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-04-23 2018-04-23 2018-04-23 N N N 0.0137 34054764.00 34054764.00 0.0087 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.49% 313385YH3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-06-20 2018-06-20 2018-06-20 N N N 0.0149 27589501.65 27589501.65 0.0070 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.41% 313385WR3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-05-11 2018-05-11 2018-05-11 N N N 0.0141 29847250.00 29847250.00 0.0076 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.33% 313385UH7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-16 2018-03-16 2018-03-16 N N N 0.0133 39890644.44 39890644.44 0.0102 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TT3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-02 2018-03-02 2018-03-02 N N N 0.0130 49892083.33 49892083.33 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TS5 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-01 2018-03-01 2018-03-01 N N N 0.0130 49893472.22 49893472.22 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.32% 313385UA2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-09 2018-03-09 2018-03-09 N N N 0.0132 49877166.67 49877166.67 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.31% 313385UD6 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-12 2018-03-12 2018-03-12 N N N 0.0131 29923583.34 29923583.34 0.0076 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.33% 313385UD6 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-12 2018-03-12 2018-03-12 N N N 0.0133 49870694.44 49870694.44 0.0127 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.31% 313385TB2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-14 2018-02-14 2018-02-14 N N N 0.0131 49920250.00 49920250.00 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.25% 313385RP3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-09 2018-01-09 2018-01-09 N N N 0.0125 49986111.11 49986111.11 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.25% 313385RN8 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-08 2018-01-08 2018-01-08 N N N 0.0125 49987847.22 49987847.22 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.25% 313385RK4 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-05 2018-01-05 2018-01-05 N N N 0.0125 49993055.55 49993055.55 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385RQ1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-10 2018-01-10 2018-01-10 N N N 0.0127 44985712.50 44985712.50 0.0115 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.25% 313385RW8 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-16 2018-01-16 2018-01-16 N N N 0.0125 50888481.77 50888481.77 0.0130 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.26% 313385RR9 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-11 2018-01-11 2018-01-11 N N N 0.0126 49982569.44 49982569.44 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.26% 313385RQ1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-10 2018-01-10 2018-01-10 N N N 0.0126 79974862.50 79974862.50 0.0204 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.24% 313385RJ7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-04 2018-01-04 2018-01-04 N N N 0.0124 39995866.67 39995866.67 0.0102 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 0.85% 313385RG3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0085 30040290.70 30040290.70 0.0077 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 0.8% 313385RG3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0080 199995555.56 199995555.56 0.0509 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.05% 313385RG3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0105 99997083.33 99997083.33 0.0255 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.24% 313385RG3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0124 49998277.78 49998277.78 0.0127 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.25% 313385RJ7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-04 2018-01-04 2018-01-04 N N N 0.0125 14998437.50 14998437.50 0.0038 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.24% 313385RH1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-03 2018-01-03 2018-01-03 N N N 0.0124 49996555.55 49996555.55 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.2% 313385RH1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-03 2018-01-03 2018-01-03 N N N 0.0120 49996666.67 49996666.67 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385RX6 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-17 2018-01-17 2018-01-17 N N N 0.0127 39977422.22 39977422.22 0.0102 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.29% 313385SV9 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-08 2018-02-08 2018-02-08 N N N 0.0129 49932180.55 49932180.55 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.28% 313385SP2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-02 2018-02-02 2018-02-02 N N N 0.0128 79908844.44 79908844.44 0.0204 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385SM9 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-31 2018-01-31 2018-01-31 N N N 0.0127 33964016.67 33964016.67 0.0086 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.29% 313385SW7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-09 2018-02-09 2018-02-09 N N N 0.0129 99860520.84 99860520.84 0.0254 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.29% 313385TB2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-14 2018-02-14 2018-02-14 N N N 0.0129 29952700.00 29952700.00 0.0076 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385TA4 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-13 2018-02-13 2018-02-13 N N N 0.0130 57660542.08 57660542.08 0.0147 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.3% 313385SZ0 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-12 2018-02-12 2018-02-12 N N N 0.0130 24962083.34 24962083.34 0.0064 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.28% 313385SL1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-30 2018-01-30 2018-01-30 N N N 0.0128 49948645.84 49948645.84 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.28% 313385SD9 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-23 2018-01-23 2018-01-23 N N N 0.0128 39968711.11 39968711.11 0.0102 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.26% 313385SC1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-22 2018-01-22 2018-01-22 N N N 0.0126 49963395.84 49963395.84 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385RZ1 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-19 2018-01-19 2018-01-19 N N N 0.0127 49968250.00 49968250.00 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385SE7 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-24 2018-01-24 2018-01-24 N N N 0.0127 79935025.00 79935025.00 0.0204 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.29% 313385SK3 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-29 2018-01-29 2018-01-29 N N N 0.0129 39959866.67 39959866.67 0.0102 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385SG2 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-26 2018-01-26 2018-01-26 N N N 0.0127 49955902.78 49955902.78 0.0127 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes, 1.27% 313385SF4 U.S. Government Agency Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-25 2018-01-25 2018-01-25 N N N 0.0127 49957666.67 49957666.67 0.0127 N N Y N Goldman Sachs Financial Square Funds - Government Fund Goldman Sachs Financial Square Funds - Government Fund, 1.23% 38141W273 Investment Company Y Fitch NR Moody's Aaa Standard & Poor's AAAm 2018-01-02 2018-01-02 2018-01-02 N N N 0.0123 95000000.00 95000000.00 0.0242 N Y Y N Morgan Stanley Institutional Liquidity Funds - Government Portfolio Morgan Stanley Institutional Liquidity Funds - Government Portfolio, 1.21% 61747C707 Investment Company Y Fitch NR Moody's Aaa-mf Standard & Poor's AAAm 2018-01-02 2018-01-02 2018-01-02 N N N 0.0121 143000000.00 143000000.00 0.0364 N Y Y N STIT-Government & Agency Portfolio STIT-Government & Agency Portfolio, 1.22% 825252885 Investment Company Y Fitch NR Moody's Aaa Standard & Poor's AAAm 2018-01-08 2018-01-08 2018-01-08 N N N 0.0122 111000000.00 111000000.00 0.0283 N N Y N United States Cash Management Bill United States Cash Management Bill, 1.24% 912796RK7 U.S. Treasury Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-02 2018-01-02 2018-01-02 N N N 0.0124 69997588.89 69997588.89 0.0178 N Y Y N United States Treasury Bill United States Treasury Bill, 1.41% 912796PC7 U.S. Treasury Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-05-03 2018-05-03 2018-05-03 N N N 0.0141 79619088.88 79619088.88 0.0203 N Y Y N United States Treasury Bill United States Treasury Bill, 1.29% 912796NS4 U.S. Treasury Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-02-15 2018-02-15 2018-02-15 N N N 0.0129 69887125.00 69887125.00 0.0178 N Y Y N United States Treasury Bill United States Treasury Bill, 1.21% 912796NN5 U.S. Treasury Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-01-18 2018-01-18 2018-01-18 N N N 0.0121 69960002.78 69960002.78 0.0178 N Y Y N United States Treasury Bill United States Treasury Bill, 1.32% 912796NU9 U.S. Treasury Debt Y Fitch NR Moody's P-1 Standard & Poor's A-1+ 2018-03-08 2018-03-08 2018-03-08 N N N 0.0132 99758916.66 99758916.66 0.0254 N Y Y N Principal Funds, Inc. 2018-01-04 /s/ Jennifer A. Block Jennifer A. Block Vice President, Counsel, and Assistant Secretary