BROWN BROTHERS HARRIMAN & CO

CIK
14661
City
NEW YORK
State / Country
NY

Top Portfolio Positions

1,429 positions · $12,987,919,834 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
MSFT
Microsoft Corp
Technology
1,947,381 $720,862,024 5.55%
AAPL
Apple Inc.
Technology
2,708,731 $687,448,840 5.29%
KLAC
Kla Corp
Technology
349,901 $515,197,731 3.97%
AMZN
Amazon Com Inc
Consumer Cyclical
2,282,640 $475,405,432 3.66%
WM
Waste Management Inc
Industrials
1,650,235 $379,207,500 2.92%
MA
Mastercard Inc
Financial Services
724,865 $362,186,045 2.79%
LIN
Linde Plc
Basic Materials
723,725 $358,793,906 2.76%
NVDA
Nvidia Corp
Technology
1,898,205 $331,046,952 2.55%
AMAT
Applied Materials Inc /De
Technology
879,089 $300,463,829 2.31%
USB
Us Bancorp \De\
Financial Services
5,745,120 $298,803,691 2.30%

Portfolio Trend

32 quarters · across all stocks

Holdings in WM

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Shares Held

Position Value (USD)

22 of 22 shown
Report Date Value (USD) Shares
2026-03-31 $379,207,500 1,650,235
2025-12-31 $362,553,797 1,650,147
2025-09-30 $369,774,755 1,674,477
2025-06-30 $389,480,928 1,702,128
2025-03-31 $469,602,060 2,028,431
2024-12-31 $415,384,311 2,058,498
2024-09-30 $436,990,318 2,104,963
2024-06-30 $454,524,283 2,130,516
2023-06-30 $391,715,719 2,258,769
2023-03-31 $376,270,183 2,306,001
2022-12-31 $330,340,804 2,105,691
2022-09-30 $342,571,595 2,138,266
2022-06-30 $295,257,978 1,930,043
2022-03-31 $308,624,701 1,947,159
2021-12-31 $319,749,523 1,915,815
2021-09-30 $288,534,693 1,931,807
2021-06-30 $274,214,605 1,957,138
2021-03-31 $255,617,004 1,981,220
2020-12-31 $226,195,046 1,918,045
2020-09-30 $286,429,648 2,530,968
2020-06-30 $283,502,323 2,676,823
2020-03-31 $246,499,127 2,663,128