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Aureus Asset Management, LLC

Location
BOSTON, MA
Portfolio Value
Mid $1,574,286,326
Diversification
Diversified
Filing Date
Global Rank
#1,521 / 8,710 ▲ 127
Top Industry
Semiconductors 12.7%
Period ended 3 months ago
Filed Aug 14, 2026 · 37d
26 quarters · since Mar 2020

Portfolio Concentration

204 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
6.8%
+0.8 pts
Top 5
24.5%
+1.5 pts
Top 10
42.5%
+1.1 pts
HHI
289
Sep 2023 → Jun 2026 · range 252 – 306
Diversified+13

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 28.8% $453,441,041
Financial Services 18.5% $291,800,074
Industrials 11.8% $185,503,311
Healthcare 10.4% $163,622,813
Communication Services 9.9% $155,278,520
Consumer Cyclical 6.1% $96,024,411
Utilities 4.7% $74,514,538
Basic Materials 4.2% $66,470,253
Energy 2.8% $44,217,712
Unclassified 1.1% $17,522,666
Consumer Defensive 1.0% $15,911,618
Real Estate 0.6% $9,979,369

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
23 positions
Ticker Shares Value Open
21,384 $0

Portfolio Positions

Export CSV View 13F filing
204 tracked positions · $1,574,286,326 total · filing declares 239 positions · $1,645,935,398 · as of Jun 30, 2026
Showing 1–50 of 204 positions by value · page 1 of 5
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.