IRIDIAN ASSET MANAGEMENT LLC/CT
SEC Form 13F institutional filer · CIK 0001033427
13F-HR · 11 reported holdings · 2026-03-31
Reported long-US-equity value
$0.04B
Top-10 concentration
97.9%
IRIDIAN ASSET MANAGEMENT LLC/CT — $35.7M AUM allocation strategy
IRIDIAN ASSET MANAGEMENT LLC/CT files SEC Form 13F and reports $35.7M of long US equity value across 11 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 38.6%, followed by Health Care 24.6% and Energy 16.0%.
The top 10 holdings account for 98% 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.
IRIDIAN ASSET MANAGEMENT LLC/CT — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$35.7M
total across 11 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
98% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$BALL −87.8K sh · −$4.43M−$CRL −16.7K sh · −$3.6M−$BKR −8.37K sh · +$384K
Added from nil (new positions)
None this quarter
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)
- Managed Health Care17.7%—
- Oil & Gas Equipment & Services16.0%—
- Semiconductors15.2%—
- Electronic Manufacturing Services13.4%—
- Systems Software10.0%—
- Asset Management & Custody Banks8.1%—
- Financial Exchanges & Data6.8%—
- Metal, Glass & Plastic Containers5.8%—
- Other holdings7.0%—
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 |
|---|---|---|---|---|---|
| $ELV | Elevance Health Inc | 21.6K | $6.33M | -3.45K | 17.7% |
| $ON | ON Semiconductor Corporation | 87.9K | $5.44M | -3.75K | 15.2% |
| $FLEX | Flex Ltd | 73.2K | $4.79M | +3.28K | 13.4% |
| $GEN | Gen Digital Inc | 189K | $3.56M | -909 | 10.0% |
| $BKR | Baker Hughes Company | 49.3K | $3.01M | -8.37K | 8.4% |
| $KKR | KKR & Co. Inc | 31.4K | $2.9M | +14.1K | 8.1% |
| $SLB | SLB Limited | 53K | $2.72M | -2.54K | 7.6% |
| $ICE | Intercontinental Exchange Inc | 15.5K | $2.44M | -651 | 6.8% |
| $BALL | Ball Corporation | 35.1K | $2.07M | -87.8K | 5.8% |
| $CRL | Charles River Laboratories International Inc | 9.85K | $1.7M | -16.7K | 4.8% |
…and 1 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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