N-MFP3 0001342947 XXXXXXXX 2026-03-31 BBH Trust 0001342947 5493002QM4WBFYUZ3Y95 BBH U.S. Government Money Market Fund 549300KN52JO55O7ZX66 S000015108 1 N N 333-129342 Brown Brothers Harriman & Co. 801-60256 Deloitte & Touche, LLP Boston MA Brown Brothers Harriman & Co. 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National Australia Bank Ltd. 0.03600000 N/A F8SB4JFBSYQFRQEH3Z21 35HCY6 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N N N USTR N/A 91282CQG9 2026-04-01 3.875 N/A 383635000.00 382499999.96 U.S. Treasuries (including strips) Y 2026-04-01 2026-04-01 2026-04-01 N N N 0.0365 375000000.00 375000000.00 0.0420 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797TR8 N/A US912797TR84 U.S. Treasury Debt Y 2026-05-12 2026-05-12 2026-05-12 N N N 0.0361 358512267.60 358512267.60 0.0402 N Y Y N Royal Bank of Canada Royal Bank of Canada 0.03590000 N/A ES7IP3U3RHIGC71XBU11 35HCZY U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N N N USTR N/A 91282CMY4 2026-04-01 3.75 N/A 376999000.00 382653985.00 U.S. Treasuries (including strips) Y 2026-04-01 2026-04-01 2026-04-01 N N N 0.0364 375000000.00 375000000.00 0.0420 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797SN8 N/A US912797SN89 U.S. Treasury Debt Y 2026-04-30 2026-04-30 2026-04-30 N N N 0.0362 249269562.50 249269562.50 0.0279 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797QX8 N/A US912797QX89 U.S. Treasury Debt Y 2026-06-11 2026-06-11 2026-06-11 N N N 0.0364 273046416.50 273046416.50 0.0306 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797SX6 N/A US912797SX61 U.S. Treasury Debt Y 2026-06-04 2026-06-04 2026-06-04 N N N 0.0362 332845876.30 332845876.30 0.0373 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797TH0 N/A US912797TH03 U.S. Treasury Debt Y 2026-04-14 2026-04-14 2026-04-14 N N N 0.0356 394482506.55 394482506.55 0.0442 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797QN0 N/A US912797QN08 U.S. Treasury Debt Y 2026-05-14 2026-05-14 2026-05-14 N N N 0.0362 298696590.00 298696590.00 0.0335 N Y Y N BNP Paribas BNP Paribas 0.03600000 N/A R0MUWSFPU8MPRO8K5P83 35HCW2 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N N Y FMAC N/A N/A 2032-01-01 2056-04-01 2.00000000 - 7.50000000 N/A 280224878.00 184247968.92 Agency Mortgage-Backed Securities GNMA N/A N/A 2031-07-20 2065-12-20 2.00000000 - 7.50000000 N/A 73750914.00 26076442.92 Agency Mortgage-Backed Securities FNMA N/A N/A 2026-12-01 2056-03-01 2.00000000 - 7.00000000 N/A 349308921.00 172175588.16 Agency Mortgage-Backed Securities Y 2026-04-01 2026-04-01 2026-04-01 N N N 0.0365 375000000.00 375000000.00 0.0420 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797TJ6 N/A US912797TJ68 U.S. Treasury Debt Y 2026-04-21 2026-04-21 2026-04-21 N N N 0.0364 364263816.90 364263816.90 0.0408 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797SM0 N/A US912797SM07 U.S. Treasury Debt Y 2026-04-23 2026-04-23 2026-04-23 N N N 0.0366 344233830.90 344233830.90 0.0386 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797RF6 N/A US912797RF64 U.S. Treasury Debt Y 2026-07-09 2026-07-09 2026-07-09 N N N 0.0354 123760471.25 123760471.25 0.0139 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797TZ0 N/A US912797TZ01 U.S. Treasury Debt Y 2026-06-09 2026-06-09 2026-06-09 N N N 0.0362 273105338.00 273105338.00 0.0306 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797QD2 N/A US912797QD26 U.S. Treasury Debt Y 2026-04-16 2026-04-16 2026-04-16 N N N 0.0360 319515734.40 319515734.40 0.0358 N Y Y N United States Treasury Bill United States Treasury Bill 0.00000000 912797TS6 N/A US912797TS67 U.S. Treasury Debt Y 2026-05-19 2026-05-19 2026-05-19 N N N 0.0364 268691399.10 268691399.10 0.0301 N Y Y N BBH US Government Money Market Fund 2026-04-07 Declan Coyne Declan Coyne Treasurer of the BBH Trust