Stocks/Funds/CIK 14661

BROWN BROTHERS HARRIMAN & CO

index-like (500+ pos)long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 14661
Assets
$18.65B
+30.3% YoY
Holdings
1,800
Lifetime alpha vs market
-1.28% annual
Average hold time
4.7 yr
median 3.8 yr

Quarterly history

Cum return +226% vs S&P +272% · α -46% lifetimeAUM $18.6B · peak $19.2BFlow $1.6B (+9%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+1.75%
adds when stocks drop
when a holding falls −10%+
Middle response
-5.67%
baseline attrition
Rally response
-2.60%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
IVViShares Core S&P 500 ETF$1.14B6.1%10.5 yr
GOOGAlphabet Inc.$811M4.3%+84.3%10.5 yr
MSFTMicrosoft Corporation$721M3.9%-0.6%10.5 yr
AAPLApple Inc.$687M3.7%+14.7%10.5 yr
AKREAkre Focus ETF$634M3.4%0.5 yr
BRK-BBerkshire Hathaway Inc.$546M2.9%10.5 yr
KLACKLA Corporation$515M2.8%+118.2%8.3 yr
AMZNAmazon.com, Inc.$475M2.5%+9.5%10.5 yr
$463M2.5%0.5 yr
$420M2.3%0.5 yr
IEFAiShares Core MSCI EAFE E$387M2.1%9.0 yr
WMWaste Management, Inc.$379M2.0%+0.8%10.5 yr
MAMastercard Incorporated$362M1.9%-8.5%10.5 yr
LINLinde plc$359M1.9%+7.9%3.3 yr
NVDANVIDIA Corporation$331M1.8%+60.9%9.3 yr

Portfolio composition (YoY)

Industry mix
Asset Management19.3%+10.6pp$3.60B
Semiconductors8.8%+2.6pp$1.64B
Software - Infrastructure6.3%-2.3pp$1.18B
Internet Content & Information5.4%+0.2pp$1.01B
Unknown5.2%+4.9pp$969M
Consumer Electronics3.7%+1.6pp$688M
Insurance - Diversified3.5%-2.4pp$646M
Drug Manufacturers - General3.4%-0.3pp$632M
Discount Stores2.8%+0.4pp$530M
Specialty Retail2.8%-0.6pp$513M
Country
US90.9%-0.4pp
Unknown5.2%+4.9pp
GB2.1%-1.9pp
CH0.9%-1.7pp
CA0.5%-0.2pp
IE0.2%-0.3pp
DK0.1%-0.1pp
TW0.0%+0.0pp
Top 5: 21.4% · Top 10: 34.4% · Top 25: 58.1%

Winners

TickerPrev $PnLYoY %
GOOG$656M+0.55B84.3%
KLAC$411M+0.48B118.2%
AMAT$117M+0.16B137.6%
AAPL$300M+0.04B14.7%
AMZN$442M+0.04B9.5%

Losers

TickerPrev $PnLYoY %
AJG$384M-0.14B-36.6%
ZTS$317M-0.08B-27.2%
PGR$293M-0.07B-25.5%
MA$576M-0.05B-8.5%
MSFT$665M-0.00B-0.6%

Top buys this quarter · 15

USB U.S. Bancorp+$293M
ROK Rockwell Automation, Inc.+$152M
JPM JPMorgan Chase & Co.+$126M
AVGO Broadcom Inc.+$108M
AAPL Apple Inc.+$96M
PANW Palo Alto Networks, Inc.+$94M
HLT Hilton Worldwide Holdings Inc.+$62M
PH Parker-Hannifin Corporation+$62M
LLY Eli Lilly and Company+$56M
JNJ Johnson & Johnson+$55M

Top sells this quarter · 15

ADP Automatic Data Processing, Inc$136M
MA Mastercard Incorporated$132M
KLAC KLA Corporation$124M
SPGI S&P Global Inc.$86M
ADBE Adobe Inc.$77M
CWAN Clearwater Analytics Holdings,$70M
AMAT Applied Materials, Inc.$276M
TMO Thermo Fisher Scientific Inc.$60M
GOOG Alphabet Inc.$54M
ORCL Oracle Corporation$52M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$18.65B1800+5.77%+17.59%-11.82%+1.64B
2025-12-31$18.34B1833+12.66%+17.72%-5.06%+1.86B
2025-09-30$16.42B1678+9.45%+17.52%-8.07%+0.09B
2025-06-30$15.55B1547+11.71%+14.94%-3.23%+0.06B
2025-03-31$14.31B1304+6.53%+8.30%-1.78%+0.22B
2024-12-31$14.26B1457+16.78%+24.89%-8.11%-0.08B
2024-09-30$14.71B1419+34.06%+36.04%-1.98%+0.48B
2024-06-30$13.28B1142+20.38%+24.49%-4.11%-0.17B
2024-03-31$13.03B1158+26.04%+29.62%-3.58%-0.01B
2023-12-31$12.04B1147+24.92%+26.18%-1.25%-0.63B
2023-09-30$11.32B1210+21.38%+21.57%-0.19%-0.63B
2023-06-30$12.43B1215+15.86%+19.42%-3.56%-0.47B
2023-03-31$11.94B1259-6.09%-7.82%+1.72%-0.33B
2022-12-31$11.42B1244-16.58%-18.17%+1.59%-0.17B
2022-09-30$10.67B1497-14.80%-15.51%+0.71%-0.06B
2022-06-30$11.69B1291-6.69%-10.62%+3.93%-0.70B