Marble Harbor Investment Counsel, LLC
SEC Form 13F institutional filer · CIK 0001387130
13F-HR · 145 reported holdings · 2026-03-31
Marble Harbor Investment Counsel, LLC is a registered investment advisor.
Reported long-US-equity value
$0.82B
Top-10 concentration
41.8%
Marble Harbor Investment Counsel, LLC — $823M AUM allocation strategy
Marble Harbor Investment Counsel, LLC files SEC Form 13F and reports $823M of long US equity value across 145 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 17.9%, followed by Health Care 11.1% and Industrials 8.1%.
The top 10 holdings account for 42% 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.
Marble Harbor Investment Counsel, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$823M
total across 145 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
42% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PYPL +12K sh · −$1.95M+$SPGI +7.7K sh · +$558K+$NKE +5.19K sh · −$379K
Biggest trims (shares)
−$IRM −13.5K sh · +$4.64M−$ORLY −10.7K sh · −$673K−$AAPL −7.44K sh · −$6.33M
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)
- Technology Hardware, Storage & Peripherals7.4%—
- Systems Software6.3%—
- Health Care Equipment4.8%—
- Biotechnology4.7%—
- Communications Equipment4.3%—
- Other Specialized REITs3.8%—
- Broadline Retail3.4%—
- Human Resource & Employment Services3.1%—
- Other holdings62.2%—
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 |
|---|---|---|---|---|---|
| $AAPL | Apple Inc | 238K | $60.5M | -7.44K | 7.3% |
| $MSFT | Microsoft Corporation | 140K | $51.9M | -5.48K | 6.3% |
| $ABBV | AbbVie Inc | 179K | $38.9M | -3.41K | 4.7% |
| $CSCO | Cisco Systems Inc | 452K | $35.1M | -847 | 4.3% |
| $IRM | Iron Mountain Incorporated Common Stock REIT | 300K | $30.7M | -13.5K | 3.7% |
| $EBAY | eBay Inc | 312K | $28.4M | -925 | 3.5% |
| $ADP | Automatic Data Processing Inc | 127K | $25.8M | +500 | 3.1% |
| $ORLY | O'Reilly Automotive Inc | 273K | $25.2M | -10.7K | 3.1% |
| $PH | Parker-Hannifin Corporation | 27.3K | $24.4M | -1.23K | 3.0% |
| $XOM | ExxonMobil Holdings Corporation | 137K | $23.3M | -1.27K | 2.8% |
…and 135 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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