13F Insight
DOSSIER · 13F-HR · Q2 2026

BROWN BROTHERS HARRIMAN & CO

$22.8B in tracked AUM across 1,818 positions as of Q2 2026.

BB
CIK 0000014661 · last filed Jun 30, 2026
Total AUM
$22.8B
as of Q2 2026
Holdings
1,818
—
positions
Whale Score
65
65
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of Brown Brothers Harriman & Co 13F Filing
1. Portfolio Overview

The most striking feature of this filing is the dramatic expansion in portfolio size. Brown Brothers Harriman & Co (BBH) reported a total portfolio value of $15.55 billion as of June 30, 2025, representing a massive increase of +126.7% from the previous quarter's $6.86 billion. This surge suggests either a significant influx of new client capital, a strategic restructuring that moved assets ont...

Despite the more than doubling of assets, the portfolio remains highly diversified with 1,547 total holdings. The firm employs a core-satellite approach, utilizing a mix of direct equity holdings and broad-market ETFs. The average position size has increased, yet the top 10 holdings account for approximately 34% of the total portfolio value, indicating a measured concentration in high-conviction names while maintaining a long tail of smaller investments.

2. Key Holdings
Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
IVV
ISHARES CORE S&P 500 ETF
$1.9B2.5M8.1%02
IEFA
ISHARES CORE MSCI EAFE ETF
$1.0B10.8M4.6%03
GOOG
ALPHABET INC-CL C
$948M2.7M4.2%04
KLAC
KLA CORP
$915M3.0M4.0%05
AAPL
APPLE INC
$802M2.8M3.5%06
MSFT
MICROSOFT CORP
$767M2.1M3.4%07
BRK/B
BERKSHIRE HATHAWAY INC-CL B
$573M1.1M2.5%08
AMZN
AMAZON.COM INC
$544M2.3M2.4%09
AMAT
APPLIED MATERIALS INC
$482M667K2.1%10
BBHL
BBH SELECT LARGE CAP ETF
$473M27.2M2.1%

Filing history

2026Q2Jun 30
$22.8B▲ 22.3%
1,818 positionsView →2026Q1Mar 31
$18.6B▲ 1.7%
1,800 positionsView →2025Q4Dec 31
$18.3B▲ 11.7%
1,833 positionsView →2025Q3Sep 30
$16.4B▲ 5.6%
1,678 positionsView →2025Q2Jun 30
$15.6B▲ 8.7%
1,547 positionsLocked2025Q1Mar 31
$14.3B▲ 0.4%
1,304 positionsLocked2024Q4Dec 31
$14.3B▼ 3.0%
1,458 positionsLocked2024Q3Sep 30
$14.7B▲ 10.7%
1,420 positionsLocked2024Q2Jun 30
$13.3B▲ 2.1%
1,144 positionsLocked2024Q1Mar 31
$13.0B▲ 8.2%
1,158 positionsLocked2023Q4Dec 31
$12.0B▲ 6.3%
1,148 positionsLocked2023Q3Sep 30
$11.3B▼ 9.0%
1,211 positionsLocked
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