Aureus Asset Management, LLC
SEC Form 13F institutional filer · CIK 0001381296
13F-HR · 140 reported holdings · 2026-03-31
Aureus Asset Management, LLC is an asset manager.
Reported long-US-equity value
$1.25B
Top-10 concentration
47.2%
Aureus Asset Management, LLC — $1.25B AUM allocation strategy
Aureus Asset Management, LLC files SEC Form 13F and reports $1.25B of long US equity value across 140 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 22.7%, followed by Financials 19.0% and Communication Services 9.3%.
The top 10 holdings account for 47% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
Aureus Asset Management, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.25B
total across 140 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
47% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$ABT +66.4K sh · +$814K+$ORCL +60.1K sh · +$4.96M+$APO +59.2K sh · +$350K
Biggest trims (shares)
−$GOOG −46.2K sh · −$20.9M−$GOOGL −33.3K sh · −$11.7M−$AXP −27.1K sh · −$17.5M
Exited to nil (held last quarter, gone now)
$INTU ($33.2M last qtr)$CSGP ($22.7M last qtr)$DE ($6.03M last qtr)$ROP ($4.46M last qtr)$BR ($4.12M last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Interactive Media & Services9.3%—
- Semiconductors7.4%—
- Systems Software5.8%—
- Technology Hardware, Storage & Peripherals4.9%—
- Broadline Retail4.7%—
- Semiconductor Materials & Equipment4.6%—
- Investment Banking & Brokerage4.6%—
- Asset Management & Custody Banks4.5%—
- Other holdings54.3%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 253K | $72.7M | -46.2K | 5.8% |
| $MSFT | Microsoft Corporation | 194K | $71.8M | -5.12K | 5.8% |
| $AAPL | Apple Inc | 239K | $60.7M | -3.06K | 4.9% |
| $AMZN | Amazon.com Inc | 283K | $58.9M | +10.8K | 4.7% |
| $AMAT | Applied Materials Inc | 169K | $57.9M | -8.85K | 4.6% |
| $SCHW | Charles Schwab Corporation | 606K | $56.9M | -10.6K | 4.6% |
| $NEE | NextEra Energy Inc | 600K | $55.7M | +4.7K | 4.5% |
| $LIN | Linde plc | 107K | $52.9M | +52K | 4.2% |
| $V | Visa Inc | 174K | $52.6M | -1.15K | 4.2% |
| $AVGO | Broadcom Inc | 156K | $48.2M | +3.82K | 3.9% |
…and 130 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
Newsletter signup
Free subscription. Daily trading day morning dispatch. No spam.