BROWN BROTHERS HARRIMAN & COBROWN BROTHERS HARRIMAN & CO

Institutional investor · Portfolio as of Q1 2026

SEC EDGAR SourceSEC Filings

Top Holdings1,800 positions

Activity:
Stock
Shares
Value
Weight
Avg Buy
Est. P&L
Held
Conviction
IVVIVV
ETF

iShares Trust CORE S&P500 ETF

1.7M$1.1B6.1%$571.39+32.68%
29 qtrssince 2019-Q1
Increased
87

ALPHABET INC

2.8M$810.7M4.3%$95.40+272.16%
29 qtrssince 2019-Q1
Decreased
0

MICROSOFT CORP

1.9M$720.9M3.9%$281.95+36.58%
29 qtrssince 2019-Q1
Increased
61

APPLE INC

2.7M$687.4M3.7%$169.11+86.45%
29 qtrssince 2019-Q1
Increased
67
AKREAKRE
ETF

PROFESIONALLY MANAGED PORTFO

12M$633.9M3.4%$66.10-16.58%
2 qtrssince 2025-Q4
Decreased
0

BERKSHIRE HATHAWAY INC DEL

1.1M$545.6M2.9%$205.01+132.84%
29 qtrssince 2019-Q1
Increased
54

KLA CORP

349,901$515.2M2.8%$205.35+12.75%
29 qtrssince 2019-Q1
Decreased
0

AMAZON COM INC

2.3M$475.4M2.5%$124.11+97.67%
29 qtrssince 2019-Q1
Increased
55
BBHMBBHMDelisted
ETF

BBH TR

42M$462.7M2.5%
2 qtrssince 2025-Q4
Decreased
0
BBHLBBHLDelisted
ETF

BBH TR

28M$420.2M2.3%
2 qtrssince 2025-Q4
Increased
57
IEFAIEFA
ETF

ISHARES TR

4.3M$386.5M2.1%$75.10+29.46%
29 qtrssince 2019-Q1
Increased
72

WASTE MGMT INC DEL

1.7M$379.2M2.0%$104.23+123.86%
29 qtrssince 2019-Q1
Increased
53

MASTERCARD INCORPORATED

724,865$362.2M1.9%$267.97+96.57%
29 qtrssince 2019-Q1
Decreased
0

LINDE PLC

723,725$358.8M1.9%$339.28+56.15%
13 qtrssince 2023-Q1
Decreased
0

NVIDIA CORPORATION

1.9M$331M1.8%$149.29+41.31%
29 qtrssince 2019-Q1
Increased
57

APPLIED MATLS INC

879,089$300.5M1.6%$178.98+236.64%
29 qtrssince 2019-Q1
Decreased
0

US BANCORP

5.7M$298.8M1.6%$53.71+16.20%
29 qtrssince 2019-Q1
Increased
79
QLTYQLTY
ETF

GMO ETF TRUST

8.1M$292.7M1.6%$37.88+10.74%
4 qtrssince 2025-Q2
Increased
79

ORACLE CORP

1.9M$277.5M1.5%$51.46+173.30%
29 qtrssince 2019-Q1
Decreased
0

PROGRESSIVE CORP

1.3M$258.2M1.4%$104.18+121.47%
29 qtrssince 2019-Q1
Increased
60
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$18.6B
AUM
1,800
Positions
Q1 2026
Filing
Rating · 2.5
Quarterly Portfolio Change
-3%Q4'24$14.3B+0%Q1'25$14.3B+9%Q2'25$15.6B+6%Q3'25$16.4B+12%Q4'25$18.3B+2%Q1'26$18.6B
Activity profile
$ moved · Q1'26
New1%Increased56%Decreased43%Exited0%
Composition
Equity vs derivatives
Equity100%Puts0%Calls0%
Holding period
Avg 4.6 years
<1Q3%1-4Q14%1-2Y8%2Y+75%

BROWN BROTHERS HARRIMAN & CO manages $18.6B across 1800 positions as of Q1 2026. Top holdings: IVV (6.1%), GOOG (4.3%), MSFT (3.9%). Fund DNA: Steady Compounder. HoldingsIntel Rating: 2.5/5.0.

Q1 2026 Summary

Active quarter - 97 new positions, 130 exits, 709 increased. Top move: IVV (INCREASED, conviction 87). Portfolio: $18.6B across 1800 positions.

Top holdings by portfolio weight

Total AUM$19B
IVV6.09%
GOOG4.35%
MSFT3.87%
AAPL3.69%
AKRE3.40%
BRK/B2.93%
KLAC2.76%
AMZN2.55%
BBHM2.48%
BBHL2.25%
Other2.07%

Portfolio allocation by GICS sector

Sectors11
Unknown23.52%
Technology22.49%
Financial Services14.17%
Industrials9.46%
Healthcare7.50%
Consumer Cyclical6.50%
Communication Services6.01%
Consumer Defensive5.38%
Basic Materials3.22%
Energy0.98%
Other0.77%

Behavioral investing profile

7-dimension quality assessment
Solid(2.5 / 5.0)
Track Record56
Conviction38
Concentration0
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Position Outcomes

Best and worst performing positions by estimated return

Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.

Accumulation Streaks

Positions with 2+ consecutive quarters of increases - persistent directional conviction.

Security
7Q
AFLAFLAC INC
Q3 2024 Q1 2026+8,240 shares+$1.1M
7Q
AMDADVANCED MICRO DEVICES INC
Q3 2024 Q1 2026+20,764 shares+$4.6M
7Q
AAGILENT TECHNOLOGIES INC
Q3 2024 Q1 2026+4,156 shares+$464,797

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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer

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