IRIDIAN ASSET MANAGEMENT LLC/CT

Q1 2026 13F-HR Holdings

Location
Westport, CT
Holdings as of
3/31/2026
Date filed
4/23/2026
Form type
13F-HR
Num holdings
42
Total value ($000)
$246,698
Net value change ($000)
-24,918 (-9.2%)
New positions
4
Sold out positions
6
Turnover %
5.5%
Sector allocation + QoQ delta (equities-only)
Prev filing: 1/23/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
BRBR 3,587 NEW
NKTR 1,842 448.2%
ENR 1,479 77.8%
ESI 1,466 22.2%
NESR 1,270 33.7%
POST 1,237 7.4%
LPLA 734 14.3%
KKR 701 31.9%
AMRZ 698 NEW
LAD 698 4.5%
Top Reduces (Value $000, Stocks/ETFs)
DBRG -5,523 -90.1%
AVDL -5,325 -100.0%
BALL -4,434 -68.1%
CRL -3,602 -68.0%
RTO -3,082 -34.1%
BILL -2,609 -25.5%
ELV -2,459 -28.0%
AXSM -2,069 -15.4%
ACVA -1,923 -8.0%
HGV -1,826 -8.8%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type