CIK: 0001381296
Total reported value
$1.6B
Reporting period: 2026-06-30 · Number of holdings: 239
Aureus Asset Management, LLC disclosed 239 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.6B and a quarterly turnover rate of 21.0%.
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Aureus Asset Management, LLC's disclosed holdings carry a Herfindahl concentration index of 0.025 — mathematically equivalent to about 39 equally-sized positions, well below its 239 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.26), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
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New buy IEX
Trim BSX
-91.1% -$15.1M
Trim WAB
-35.4% -$12.2M
Add UNH
+1.7% $19.1M
Trim FLS
-43.4% -$11.3M
Add TXN
+76.5% $13.7M
Showing top 200 holdings (of 239 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 5.45% | +0.61% | -0.76% | |
| 2 | AMAT | Applied Materials Inc | Stock-Tech | 4.59% | +0.73% | -38.38% | |
| 3 | AAPL | Apple Inc | Stock-Tech | 4.25% | +0.21% | +1.11% | |
| 4 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 4.09% | +0.17% | -0.25% | |
| 5 | MSFT | Microsoft CORP | Stock-Tech | 4.06% | -0.73% | -7.63% | |
| 6 | V | Visa Inc-class A Shares | Stock-Financials | 3.60% | +0.10% | -0.80% | |
| 7 | AVGO | Broadcom Inc | Stock-Tech | 3.58% | +0.37% | +0.17% | |
| 8 | SCHW | Schwab (charles) CORP | Stock-Financials | 3.37% | -0.42% | -0.83% | |
| 9 | LIN | Linde plc | Stock-Materials | 3.33% | -0.19% | -0.83% | |
| 10 | WCN | Waste Connections Inc | Stock-Industrials | 3.30% | -0.10% | +3.68% | |
| 11 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 3.23% | +0.51% | -7.82% | |
| 12 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 3.23% | +0.96% | +1.70% | |
| 13 | NEE | Nextera Energy Inc | Stock-Utilities | 3.18% | -0.53% | -0.62% | |
| 14 | NVDA | Nvidia CORP | Stock-Tech | 3.11% | +0.18% | +1.72% | |
| 15 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.62% | -0.27% | +1.24% | |
| 16 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 2.28% | -0.21% | -1.71% | |
| 17 | AXP | American Express Co | Stock-Financials | 2.28% | +0.04% | -0.37% | |
| 18 | SPGI | S&p Global Inc | Stock-Financials | 2.10% | -0.42% | -4.51% | |
| 19 | APO | Apollo Global Management Inc | Stock-Financials | 2.05% | +0.22% | +15.97% | |
| 20 | ABT | Abbott Laboratories | Stock-Healthcare | 1.73% | -0.54% | -5.44% | |
| 21 | BX | Blackstone Inc | Stock-Financials | 1.70% | -0.19% | -3.52% | |
| 22 | WAB | Wabtec CORP | Stock-Industrials | 1.70% | -0.98% | -35.40% | |
| 23 | CNX | Cnx Resources CORP | Stock-Energy | 1.47% | -0.37% | -0.54% | |
| 24 | TXN | Texas Instruments Inc | Stock-Tech | 1.32% | +0.79% | +76.51% | |
| 25 | AWK | American Water Works Co Inc | Stock-Utilities | 1.31% | -0.20% | -1.69% | |
| 26 | ORCL | Oracle CORP | Stock-Tech | 1.30% | -0.08% | +3.51% | |
| 27 | IEX | Idex CORP | Stock-Industrials | 1.24% | +1.24% | NEW | |
| 28 | MOG-A | Moog Inc-class A | Stock-Other | 1.13% | +0.30% | +2.37% | |
| 29 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 1.09% | -0.03% | -6.45% | |
| 30 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 1.02% | +0.11% | -0.81% | |
| 31 | FLS | Flowserve CORP | Stock-Industrials | 0.91% | -0.84% | -43.41% | |
| 32 | MS | Morgan Stanley | Stock-Financials | 0.65% | +0.13% | +7.78% | |
| 33 | WMB | Williams Cos Inc | Stock-Energy | 0.64% | -0.02% | +2.64% | |
| 34 | SCI | Service CORP International | Stock-Consumer Disc | 0.54% | -0.08% | +4.68% | |
| 35 | STE | STERIS plc | Stock-Healthcare | 0.54% | -0.01% | +12.33% | |
| 36 | WCC | Wesco International Inc | Stock-Industrials | 0.52% | +0.08% | +2.85% | |
| 37 | KO | Coca-cola Co/the | Stock-Consumer Staples | 0.46% | +0.01% | +3.05% | |
| 38 | A | Agilent Technologies Inc | Stock-Healthcare | 0.44% | +0.22% | +88.37% | |
| 39 | QXO | Qxo Inc | Stock-Industrials | 0.43% | -0.10% | -0.38% | |
| 40 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.42% | +0.02% | +4.47% | |
| 41 | GLPI | Gaming And Leisure Propertie | Stock-Real Estate | 0.39% | -0.03% | +2.14% | |
| 42 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.39% | — | -4.15% | |
| 43 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 0.39% | +0.03% | -2.73% | |
| 44 | IWD | Ishares Russell 1000 Value E | ETF-Other | 0.38% | -0.01% | -5.25% | |
| 45 | CBT | Cabot CORP | Stock-Materials | 0.37% | +0.03% | — | |
| 46 | MU | Micron Technology Inc | Stock-Tech | 0.33% | +0.21% | -15.05% | |
| 47 | CME | Cme Group Inc | Stock-Financials | 0.29% | -0.12% | +3.72% | |
| 48 | COHR | Coherent CORP | Stock-Tech | 0.28% | +0.10% | — | |
| 49 | DELL | Dell Technologies -c | Stock-Tech | 0.27% | +0.15% | -7.13% | |
| 50 | VWO | Vanguard Ftse Emerging Marke | ETF-Emerging Markets | 0.25% | -0.01% | -3.36% |
Performance for Q3 2026
+3.6%
Performance Last 4 Quarters
+12.5%
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 239 | $1.6B | 21 | ||
| 2026 Q1 | 225 | $1.5B | 32 | ||
| 2025 Q4 | 201 | $1.6B | 22 | ||
| 2025 Q3 | 199 | $1.5B | 40 | ||
| 2025 Q2 | 205 | $1.6B | 0 | ||
| 2025 Q1 | 203 | $1.4B | 100 | ||
| 2024 Q4 | 209 | $1.5B | 0 | ||
| 2024 Q3 | 211 | $1.5B | 0 | ||
| 2024 Q2 | 201 | $1.4B | 0 | ||
| 2024 Q1 | 199 | $1.5B | 0 | ||
| 2023 Q4 | 196 | $1.4B | 0 | ||
| 2023 Q3 | 193 | $1.2B | 0 | ||
| 2023 Q2 | 185 | $1.3B | 0 | ||
| 2023 Q1 | 180 | $1.3B | 0 | ||
| 2022 Q4 | 174 | $1.2B | 0 | ||
| 2022 Q3 | 166 | $1.1B | 0 | ||
| 2022 Q2 | 183 | $1.2B | 0 | ||
| 2022 Q1 | 213 | $1.5B | 0 | ||
| 2021 Q4 | 207 | $1.6B | 0 | ||
| 2021 Q3 | 208 | $1.5B | 0 | ||
| 2021 Q2 | 229 | $1.6B | 100 | ||
| 2021 Q1 | 177 | $1.3B | 32 | ||
| 2020 Q4 | 185 | $1.2B | 16 | ||
| 2020 Q3 | 177 | $1.1B | 19 | ||
| 2020 Q2 | 170 | $917.0M | 25 | ||
| 2020 Q1 | 152 | $721.0M | 33 | ||
| 2019 Q4 | 174 | $895.1M | 13 | ||
| 2019 Q3 | 164 | $803.4M | 11 | ||
| 2019 Q2 | 170 | $812.0M | 19 | ||
| 2019 Q1 | 168 | $755.0M | 25 | ||
| 2018 Q4 | 166 | $636.1M | 25 | ||
| 2018 Q3 | 188 | $786.5M | 18 | ||
| 2018 Q2 | 186 | $727.7M | 15 | ||
| 2018 Q1 | 173 | $665.6M | 19 | ||
| 2017 Q4 | 183 | $646.0M | 17 | ||
| 2017 Q3 | 180 | $632.4M | 16 | ||
| 2017 Q2 | 162 | $594.7M | 17 | ||
| 2017 Q1 | 182 | $576.2M | 30 | ||
| 2016 Q4 | 161 | $510.4M | 36 | ||
| 2016 Q3 | 149 | $499.8M | 39 | ||
| 2016 Q2 | 129 | $464.4M | 36 | ||
| 2016 Q1 | 105 | $457.7M | 30 | ||
| 2015 Q4 | 146 | $445.4M | 36 | ||
| 2015 Q3 | 156 | $402.1M | 47 | ||
| 2015 Q2 | 170 | $475.7M | 54 | ||
| 2015 Q1 | 150 | $434.9M | 25 | ||
| 2014 Q4 | 135 | $411.3M | 42 | ||
| 2014 Q3 | 130 | $398.5M | 28 | ||
| 2014 Q2 | 138 | $400.0M | 44 | ||
| 2014 Q1 | 155 | $389.3M | 19 | ||
| 2013 Q4 | 140 | $369.3M | 46 | ||
| 2013 Q3 | 108 | $292.4M | 27 | ||
| 2013 Q2 | 108 | $279.4M | — |
Aureus Asset Management, LLC's most significant position changes for 2026-06-30: New buy: Idex CORP (IEX); Sold out: Honeywell International Inc (HON); Sold out: Marriott International -cl A (MAR); New buy: Devon Energy CORP (DVN); New buy: Domino's Pizza Inc (DPZ).
Showing top 200 changes by size (of 256 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | IEX | Idex CORP | +1.2% | NEW | New buy |
| 2 | UNH | Unitedhealth Group Inc | +1% | +1.70% | Add |
| 3 | TXN | Texas Instruments Inc | +0.8% | +76.51% | Add |
| 4 | AMAT | Applied Materials Inc | +0.7% | -38.38% | Trim |
| 5 | GOOGL | Alphabet Inc-cl A | +0.6% | -0.76% | Trim |
| 6 | TSM | Taiwan Semiconductor-sp Adr | +0.5% | -7.82% | Trim |
| 7 | AVGO | Broadcom Inc | +0.4% | +0.17% | Add |
| 8 | MOG-A | Moog Inc-class A | +0.3% | +2.37% | Add |
| 9 | DVN | Devon Energy CORP | +0.2% | NEW | New buy |
| 10 | APO | Apollo Global Management Inc | +0.2% | +15.97% | Add |
| 11 | A | Agilent Technologies Inc | +0.2% | +88.37% | Add |
| 12 | AAPL | Apple Inc | +0.2% | +1.11% | Add |
| 13 | MU | Micron Technology Inc | +0.2% | -15.05% | Trim |
| 14 | NVDA | Nvidia CORP | +0.2% | +1.72% | Add |
| 15 | AMZN | Amazon.com Inc | +0.2% | -0.25% | Trim |
| 16 | DPZ | Domino's Pizza Inc | +0.2% | NEW | New buy |
| 17 | DELL | Dell Technologies -c | +0.2% | -7.13% | Trim |
| 18 | ✓ | +0.2% | NEW | New buy | |
| 19 | ✓ | +0.2% | NEW | New buy | |
| 20 | MS | Morgan Stanley | +0.1% | +7.78% | Add |
| 21 | BETA | Beta Technologies Inc -cl A | +0.1% | NEW | New buy |
| 22 | GOOG | Alphabet Inc-cl C | +0.1% | -0.81% | Trim |
| 23 | AMD | Advanced Micro Devices | +0.1% | -5.33% | Trim |
| 24 | V | Visa Inc-class A Shares | +0.1% | -0.80% | Trim |
| 25 | COHR | Coherent CORP | +0.1% | — | Unchanged |
| 26 | PANW | Palo Alto Networks Inc | +0.1% | +3.33% | Add |
| 27 | SLB | Slb LTD | +0.1% | NEW | New buy |
| 28 | WCC | Wesco International Inc | +0.1% | +2.85% | Add |
| 29 | SPOT | Spotify Technology S.A. | +0.1% | +137.47% | Add |
| 30 | ACWI | Ishares Msci Acwi ETF | +0.1% | +191.85% | Add |
| 31 | OKTA | Okta Inc | +0.1% | +24.68% | Add |
| 32 | NXPI | NXP Semiconductors N.V. | +0.1% | +23.43% | Add |
| 33 | ADBE | Adobe Inc | +0.1% | NEW | New buy |
| 34 | OLLI | Ollie's Bargain Outlet Holdi | +0.1% | NEW | New buy |
| 35 | AXP | American Express Co | 0% | -0.37% | Trim |
| 36 | GS | Goldman Sachs Group Inc | 0% | +20.32% | Add |
| 37 | XLK | Ss Technology Select Sector | 0% | +7.35% | Add |
| 38 | ABNB | Airbnb Inc-class A | 0% | NEW | New buy |
| 39 | CBT | Cabot CORP | 0% | — | Unchanged |
| 40 | IWM | Ishares Russell 2000 ETF | 0% | -2.73% | Trim |
| 41 | GLW | Corning Inc | 0% | — | Unchanged |
| 42 | BIDU | Baidu Inc - Spon Adr | 0% | +50.10% | Add |
| 43 | BE | Bloom Energy Corp- A | 0% | -19.04% | Trim |
| 44 | JPM | Jpmorgan Chase & Co | 0% | +4.47% | Add |
| 45 | EEM | Ishares Msci Emerging Market | 0% | — | Unchanged |
| 46 | CSCO | Cisco Systems Inc | 0% | -9.50% | Trim |
| 47 | WFC | Wells Fargo & Co | 0% | +18.72% | Add |
| 48 | FTEC | Fidelity Msci Info Tech Indx | 0% | +29.16% | Add |
| 49 | ASML | ASML Holding N.V. | 0% | +18.26% | Add |
| 50 | ADI | Analog Devices Inc | 0% | NEW | New buy |
Aureus Asset Management, LLC returned an annualized 14.7% over the trailing 36 months — underperforming the S&P 500 by 5.3 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.00 (roughly in line with the market) and a 36% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active.
Its turnover score has risen from 0 to 21 over the past 4 quarters — a shift toward more active trading.
It has added to its LIN position over the past two quarters (+$31.6M, now $54.9M), while trimming MSFT over the same stretch (-$29.5M, still holding $66.9M).
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