Illumine Investment Management, LLC
SEC Form 13F institutional filer · CIK 0002052970
13F-HR · 36 reported holdings · 2026-03-31
Reported long-US-equity value
$0.06B
Top-10 concentration
56.5%
Illumine Investment Management, LLC — $58M AUM allocation strategy
Illumine Investment Management, LLC files SEC Form 13F and reports $58M of long US equity value across 36 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 18.2%, followed by Financials 14.8% and Industrials 14.2%.
The top 10 holdings account for 57% of reported value — a conviction-weighted book concentrated in its best ideas. 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.
Illumine Investment Management, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$58M
total across 36 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
57% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$IVZ +52.5K sh · +$163K+$MSFT +2.1K sh · +$311K+$XYL +472 sh · −$202K
Biggest trims (shares)
−$IBKR −12.2K sh · −$638K−$AMD −4.78K sh · −$1.22M−$FIX −544 sh · −$38.7K
Added from nil (new positions)
None this quarter
Exited to nil (held last quarter, gone now)
$INTU ($3.08M last qtr)$PGR ($1.82M last qtr)$VEEV ($1.48M last qtr)$PLTR ($1.26M last qtr)$META ($205K 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)
- Property & Casualty Insurance8.7%—
- Consumer Staples Merchandise Retail7.4%—
- Semiconductors6.4%—
- Investment Banking & Brokerage6.2%—
- Health Care Equipment5.8%—
- Industrial Machinery & Supplies & Components5.8%—
- Communications Equipment5.5%—
- Wireless Telecommunication Services4.8%—
- Other holdings49.5%—
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 |
|---|---|---|---|---|---|
| $COST | Costco Wholesale Corporation | 4.28K | $4.26M | -25 | 7.4% |
| $AMD | Advanced Micro Devices Inc | 18.2K | $3.7M | -4.78K | 6.4% |
| $IBKR | Interactive Brokers Group Inc | 53.5K | $3.59M | -12.2K | 6.2% |
| $ISRG | Intuitive Surgical Inc | 7.33K | $3.38M | -59 | 5.8% |
| $XYL | Xylem Inc. Common Stock New | 46.5K | $3.37M | +472 | 5.8% |
| $WRB | W.R. Berkley Corporation | 50.3K | $3.33M | -301 | 5.7% |
| $ANET | Arista Networks Inc | 26K | $3.19M | -291 | 5.5% |
| $TMUS | T-Mobile US Inc | 13.3K | $2.79M | -48 | 4.8% |
| $VRTX | Vertex Pharmaceuticals Incorporated | 5.78K | $2.58M | -38 | 4.5% |
| $DASH | DoorDash Inc | 17.1K | $2.57M | -52 | 4.4% |
…and 26 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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