NORTH STAR ASSET MANAGEMENT INC
SEC Form 13F institutional filer · CIK 0001056559
13F-HR · 190 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$1.80B
Top-10 concentration
36.6%
NORTH STAR ASSET MANAGEMENT INC — $1.8B AUM allocation strategy
NORTH STAR ASSET MANAGEMENT INC files SEC Form 13F and reports $1.8B of long US equity value across 190 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 16.8%, followed by Financials 14.6% and Health Care 8.7%.
The top 10 holdings account for 37% 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.
NORTH STAR ASSET MANAGEMENT INC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.8B
total across 190 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
37% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NOW +88.8K sh · +$7.16M+$IVZ +46.5K sh · +$8.89M+$SCHW +41.8K sh · −$4.34M
Biggest trims (shares)
−$AMCR −227K sh · −$119K−$SPYM −138K sh · −$13.2M−$AES −63.4K sh · −$1.35M
Exited to nil (held last quarter, gone now)
$TTD ($246K last qtr)$CVS ($211K last qtr)$CCI ($207K last qtr)$TEL ($202K 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)
- Investment Banking & Brokerage10.3%—
- Semiconductors5.5%—
- Technology Hardware, Storage & Peripherals4.9%—
- Health Care Equipment3.7%—
- Interactive Media & Services3.3%—
- Systems Software3.3%—
- Broadline Retail2.6%—
- Transaction & Payment Processing Services2.4%—
- Other holdings63.9%—
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
8 of 8 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $SCHW | Charles Schwab Corporation | 5.76M | $186M | +41.8K | 10.3% |
| $AAPL | Apple Inc | 349K | $88.5M | -5.37K | 4.9% |
| $GOOGL | Alphabet Inc | 207K | $59.3M | -8.04K | 3.3% |
| $MSFT | Microsoft Corporation | 159K | $58.9M | +1.81K | 3.3% |
| $AMZN | Amazon.com Inc | 226K | $47.2M | +1.05K | 2.6% |
| $V | Visa Inc | 143K | $43.3M | +41 | 2.4% |
| $AME | AMETEK Inc | 175K | $37.6M | -2.33K | 2.1% |
| $PFG | Principal Financial Group Inc | 382K | $34.4M | -6.7K | 1.9% |
…and 182 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.
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