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

Grantham, Mayo, Van Otterloo & Co. LLC

$44.4B in tracked AUM across 663 positions as of Q2 2026.

GM
CIK 0001352662 · last filed Jun 30, 2026
Total AUM
$44.4B
as of Q2 2026
Holdings
663
—
positions
Whale Score
70
70
strong
Activity
—
no data
changes this Q
AI Analysis · Q2 2026

Portfolio Overview

Grantham, Mayo, Van Otterloo & Co. LLC (GMO) reported a robust quarter for the period ending September 30, 2025, with total portfolio assets under management (AUM) increasing by 6.7% to approximately $35.46 billion, up from $33.23 billion in the previous quarter. The firm maintains a highly diversified portfolio consisting of 600 individual holdings. The investment strategy appears to be a "core-satellite" approach blended with deep value orientation. The portfolio is hea...

Key Holdings

The portfolio is anchored by mega-cap technology leaders, with Microsoft (MSFT) retaining its position as the largest holding at $2.57 billion (7.24% of the portfolio). GMO added $151.4 million to this position, signaling continued confidence in the software giant despite its already massive size. The "Magnificent Seven" narrative is evident, though with distinct preferences: Alphabet (GOOGL) and Meta Platforms (META) are the second and third largest holdings, respectively, though the firm notably reduced its stake in Alphabet by 10.7% ($321 million), suggesting a realization of gains or a shift in valuation outlook.

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
MSFT
MICROSOFT CORP
$2.5B6.8M5.7%02
LRCX
LAM RESEARCH CORP
$2.4B5.5M5.3%03
GOOGL
ALPHABET INC
$2.2B6.1M4.9%04
AAPL
APPLE INC
$2.0B6.8M4.5%05
META
META PLATFORMS INC
$1.9B3.4M4.4%06
JNJ
JOHNSON & JOHNSON
$1.8B7.1M4.1%07
AMZN
AMAZON COM INC
$1.5B6.1M3.3%08
TXN
TEXAS INSTRS INC
$1.4B4.7M3.1%09
TMO
THERMO FISHER SCIENTIFIC INC
$1.4B2.7M3.1%10
AVGO
BROADCOM INC
$1.2B3.3M2.8%

Filing history

2026Q2Jun 30
$44.4B▲ 13.6%
663 positionsView →2026Q1Mar 31
$39.1B▼ 0.1%
628 positionsView →2025Q4Dec 31
$39.1B▲ 10.3%
654 positionsView →2025Q3Sep 30
$35.5B▲ 6.7%
600 positionsView →2025Q2Jun 30
$33.2B▲ 4.8%
608 positionsLocked2025Q1Mar 31
$31.7B▲ 3.2%
615 positionsLocked2024Q4Dec 31
$30.7B▼ 3.6%
570 positionsLocked2024Q3Sep 30
$31.9B▲ 7.8%
559 positionsLocked2024Q2Jun 30
$29.6B▲ 7.6%
525 positionsLocked2024Q1Mar 31
$27.5B▲ 21.4%
513 positionsLocked2023Q4Dec 31
$22.7B▲ 7.0%
485 positionsLocked2023Q3Sep 30
$21.2B▼ 2.0%
572 positionsLocked
Showing 12 of 81