DOSSIER · 13F-HR · Q2 2026

Cabot-Wellington, LLC

$380M in tracked AUM across 5 positions as of Q2 2026.

CL
CIK 0001353198 · last filed Jun 30, 2026
Total AUM
$380M
as of Q2 2026
Holdings
5
positions
Whale Score
71
71
strong
Activity
no data
changes this Q
AI Analysis · Q2 2026

Based on the SEC 13F filing data provided for Cabot-Wellington, LLC as of September 30, 2025, here is a comprehensive analysis of the portfolio's structure, activity, and strategic implications.

1. Portfolio Overview

The filing reveals a highly concentrated portfolio that has undergone a drastic reduction in size and a strategic pivot in asset allocation. As of the report date, the total portfolio value stands at approximately $85.76 million, representing a sharp decline of 70.5% fr...

2. Key Holdings

The portfolio is currently split between two major iShares ETFs, which together represent 100% of the total assets:

  • IEFA (iShares Core MSCI EAFE): This is the dominant position, valued at $65.48 million and comprising 76.35% of the portfolio. Holding 750,000 shares, this fund provides exposure to large and mid-cap stocks in developed markets outside of the U.S. and Canada. The heavy weighting suggests a strong conviction in international developed market performance relative to U.S. equities.
  • IEMG (iShares Core MSCI Emerging Markets): The second position, valued at $20.28 million, makes up the remaining 23.65% of the portfolio with 308,000 shares. This fund tracks emerging market equities. Combined with IEFA, these two funds offer exposure to the global equity market ex-USA.
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
VTI
VANGUARD INDEX FDS
$285M771K75.2%
02
IEFA
ISHARES TR
$67M690K17.6%
03
IEMG
ISHARES INC
$26M309K6.7%
04
VB
VANGUARD INDEX FDS
$2M5K0.4%
05
VT
VANGUARD INTL EQUITY INDEX F
$227K1K0.1%

Filing history

2026Q2Jun 30
$380M 12.3%
5 positionsView →
2026Q1Mar 31
$338M 8.4%
5 positionsView →
2025Q4Dec 31
$312M 263.6%
5 positionsView →
2025Q3Sep 30
$86M 70.5%
2 positionsView →
2025Q2Jun 30
$290M 283.4%
5 positionsLocked
2025Q1Mar 31
$76M 71.2%
2 positionsLocked
2024Q4Dec 31
$263M 1.1%
4 positionsLocked
2024Q3Sep 30
$266M 4.2%
4 positionsLocked
2024Q2Jun 30
$255M 0.9%
4 positionsLocked
2024Q1Mar 31
$258M 7.7%
4 positionsLocked
2023Q4Dec 31
$239M 38.2%
3 positionsLocked
2023Q3Sep 30
$173M 4.1%
3 positionsLocked
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