DOSSIER · 13F-HR · Q2 2026

Madrone Advisors, LLC

$1.4B in tracked AUM across 6 positions as of Q2 2026.

MA
CIK 0001964563 · last filed Jun 30, 2026
Total AUM
$1.4B
as of Q2 2026
Holdings
6
positions
Whale Score
79
79
strong
Activity
no data
changes this Q
AI Analysis · Q2 2026

Portfolio Overview

Madrone Advisors, LLC has reported a significant transformation in its investment portfolio for the period ending September 30, 2025. The firm executed a major strategic pivot, evidenced by a 170.1% surge in total portfolio value, growing from approximately $719.56 million to $1.94 billion. This growth was driven not merely by market appreciation, but by substantial capital reallocation. The portfolio is currently extremely concentrated, consisting of only four holdings. ...

Key Holdings

The portfolio is dominated by two massive positions that account for over 90% of the total value.

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
STUB
STUBHUB HLDGS INC
$975M75.8M69.9%
02
G85158106
STONECO LTD
$275M25.3M19.7%
03
QXO
QXO INC
$73M4.2M5.2%
04
VT
VANGUARD INTL EQUITY INDEX F
$40M257K2.9%
05
COF
CAPITAL ONE FINL CORP
$22M110K1.6%
06
FIG
FIGMA INC
$10M539K0.7%

Filing history

2026Q2Jun 30
$1.4B 35.7%
6 positionsView →
2026Q1Mar 31
$1.0B 36.4%
5 positionsView →
2025Q4Dec 31
$1.6B 16.8%
5 positionsView →
2025Q3Sep 30
$1.9B 170.1%
4 positionsView →
2025Q2Jun 30
$720M 20.5%
5 positionsLocked
2025Q1Mar 31
$597M 13.8%
6 positionsLocked
2024Q4Dec 31
$525M 16.2%
6 positionsLocked
2024Q3Sep 30
$626M 10.0%
6 positionsLocked
2024Q2Jun 30
$570M 22.0%
6 positionsLocked
2024Q1Mar 31
$730M 9.1%
6 positionsLocked
2023Q4Dec 31
$803M 72.6%
6 positionsLocked
2023Q3Sep 30
$465M 18.8%
8 positionsLocked
Showing 12 of 15