EAGLE ROCK INVESTMENT COMPANY, LLC
SEC Form 13F institutional filer · CIK 0001911407
13F-HR · 103 reported holdings · 2026-03-31
Reported long-US-equity value
$0.52B
Top-10 concentration
40.3%
EAGLE ROCK INVESTMENT COMPANY, LLC — $523M AUM allocation strategy
EAGLE ROCK INVESTMENT COMPANY, LLC files SEC Form 13F and reports $523M of long US equity value across 103 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 22.1%, followed by Financials 12.0% and Communication Services 10.7%.
The top 10 holdings account for 40% 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.
EAGLE ROCK INVESTMENT COMPANY, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$523M
total across 103 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
40% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$AMZN +27.8K sh · +$5.39M+$GEHC +15.1K sh · +$760K+$NKE +11.9K sh · +$4.2K
Biggest trims (shares)
−$MU −15.8K sh · −$2.35M−$AVGO −13.7K sh · −$8.73M−$FISV −12.2K sh · −$1.12M
Exited to nil (held last quarter, gone now)
$LULU ($1.09M last qtr)$F ($394K last qtr)$WTW ($246K last qtr)$UNP ($210K 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 & Services10.7%—
- Semiconductors9.1%—
- Life Sciences Tools & Services4.3%—
- Technology Hardware, Storage & Peripherals3.7%—
- Semiconductor Materials & Equipment3.7%—
- Diversified Banks3.6%—
- Systems Software3.6%—
- Property & Casualty Insurance3.4%—
- Other holdings58.0%—
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 | 126K | $36.3M | -3.24K | 6.9% |
| $AVGO | Broadcom Inc | 109K | $33.7M | -13.7K | 6.4% |
| $META | Meta Platforms Inc | 34.1K | $19.5M | +1.72K | 3.7% |
| $AAPL | Apple Inc | 76.8K | $19.5M | -114 | 3.7% |
| $KLAC | KLA Corporation | 13.1K | $19.3M | -863 | 3.7% |
| $JPM | JP Morgan Chase & Co | 63.8K | $18.8M | +2.08K | 3.6% |
| $MSFT | Microsoft Corporation | 50.6K | $18.7M | +1.81K | 3.6% |
| $CB | Chubb Limited | 53.9K | $17.6M | +130 | 3.4% |
| $MU | Micron Technology Inc | 41.2K | $13.9M | -15.8K | 2.7% |
| $AXP | American Express Company | 44.4K | $13.4M | -112 | 2.6% |
…and 93 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
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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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