DOSSIER · 13F-HR · Q1 2026

Aureus Asset Management, LLC

$1.5B in tracked AUM across 225 positions as of Q1 2026.

AA
CIK 0001381296 · last filed Mar 31, 2026
Total AUM
$1.5B
as of Q1 2026
Holdings
225
positions
Whale Score
54
54
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026
Aureus Asset Management, LLC (CIK: 0001381296) — 13F Filing Analysis

Report Period: Q3 2025 (Report Date: 2025-09-30)

1. Portfolio Overview

Aureus Asset Management’s Q3 2025 filing reveals a period of substantial capital contraction and strategic realignment. The total portfolio value decreased sharply by 49.5%, dropping from $1.56 billion to $789.3 million. This reduction in assets under management (AUM) is driven not merely by market performance but by significant active ...

The firm executed a high-velocity strategy during the quarter, with 48 positions being either liquidated or initiated (24 new positions and 24 sold positions). This churn indicates a pivot away from previous core holdings rather than a simple reduction of exposure across the board. The portfolio currently consists of 87 holdings, suggesting a diversified approach that still maintains a preference for concentrated positions in top-tier names. The presence of ETFs like SPY and VONV, alongside specific new commodity exposure via DBC, points to a tactical overlay being employed to manage risk or market volatility.

2. Key Holdings

Despite the significant turnover in the portfolio, the top holdings remain dominated by high-quality, large-cap growth and compounders. The top 10 positions account for approximately 66% of the total portfolio value, indicating a conviction-based approach to core allocation.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
GOOGL
Alphabet Inc. Class A
$73M253K4.8%
02
MSFT
Microsoft Corp
$72M194K4.8%
03
AAPL
Apple Inc
$61M239K4.0%
04
AMZN
Amazon.com Inc
$59M283K3.9%
05
AMAT
Applied Materials Inc
$58M169K3.9%
06
SCHW
Charles Schwab Corporation
$57M606K3.8%
07
NEE
NextEra Energy Inc
$56M600K3.7%
08
G54950103
Linde PLC
$53M107K3.5%
09
V
Visa Inc
$53M174K3.5%
10
WCN
Waste Connections Inc
$51M315K3.4%

Filing history

2026Q1Mar 31
$1.5B 4.4%
225 positionsView →
2025Q4Dec 31
$1.6B 98.9%
201 positionsView →
2025Q3Sep 30
$789M 49.5%
87 positionsView →
2025Q2Jun 30
$1.6B 9.5%
205 positionsLocked
2025Q1Mar 31
$1.4B 7.8%
203 positionsLocked
2024Q4Dec 31
$1.5B 1.2%
209 positionsLocked
2024Q3Sep 30
$1.5B 6.8%
211 positionsLocked
2024Q2Jun 30
$1.4B 2.3%
201 positionsLocked
2024Q1Mar 31
$1.5B 7.1%
199 positionsLocked
2023Q4Dec 31
$1.4B 9.8%
196 positionsLocked
2023Q3Sep 30
$1.2B 6.7%
193 positionsLocked
2023Q2Jun 30
$1.3B 5.5%
185 positionsLocked
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