IRIDIAN ASSET MANAGEMENT LLC/CT

Fundamental concentrated ★Highest signal CIK 1033427
League rank
#180
in Fundamental concentrated · #295 overall
Long book
$246.7M
Q1 2026
Positions
42
Top-10 weight
62%
concentration
Last quarter
+25.6%
SPY +14.8%
Turnover
23%
of book per quarter

Strategy in plain words

auto-generated from filings

IRIDIAN ASSET MANAGEMENT LLC/CT is a concentrated fundamental stock-picker, running a $246.7M US long book across 42 positions.

The portfolio is concentrated: the top 10 names carry 62% of the portfolio. Turnover is modest: positions are typically held for years. Current anchor positions: HERBALIFE LTD, ACV AUCTIONS INC-A, HILTON GRAND VACATIONS INC, POST HOLDINGS INC, LITHIA MOTORS INC.

Over the last 9 quarters its long book ran on average 0.6pp per quarter ahead of the S&P 500, beating the index in 4 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
-1.9%
Q2 2024
+5.4%
Q3 2024
+3.8%
Q4 2024
-3.0%
Q1 2025
+5.3%
Q2 2025
+4.9%
Q3 2025
+12.0%
Q4 2025
-6.5%
Q1 2026
+25.6%

Sector allocation

Services media
26%
Consumer discretionary
18%
Healthcare
16%
Technology
13%
Consumer staples
9%
Financials
8%
Industrials
4%
Other
3%

Long book by quarter

$509.6M
Q1 2024
$443.1M
Q2 2024
$467.1M
Q3 2024
$375.9M
Q4 2024
$318.9M
Q1 2025
$288.7M
Q2 2025
$254.1M
Q3 2025
$271.6M
Q4 2025
$246.7M
Q1 2026

What does IRIDIAN ASSET own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
HLF HERBALIFE LTDConsumer discretionary1.6M$23.9M9.7%-11.7%
ACVA ACV AUCTIONS INC-AServices media5.2M$22.1M8.9%+74.0%
HGV HILTON GRAND VACATIONS INCServices media485.2K$19.0M7.7%+4.4%
POST POST HOLDINGS INCConsumer staples182.0K$18.0M7.3%+7.6%
LAD LITHIA MOTORS INCConsumer discretionary65.6K$16.4M6.6%+39.0%
PGEN PRECIGEN INCHealthcare3.6M$13.9M5.6%-0.2%
TNL TRAVEL + LEISURE COServices media197.0K$13.6M5.5%-6.1%
AXSM AXSOME THERAPEUTICS INCHealthcare67.5K$11.4M4.6%-8.5%
ESI ELEMENT SOLUTIONS INCOther236.3K$8.1M3.3%-10.5%
BILL BILL HOLDINGS INCTechnology198.7K$7.6M3.1%+6.1%
KPLT KATAPULT HOLDINGS INCServices media897.1K$6.3M2.6%-2.5%
ELV ELEVANCE HEALTH INCFinancials21.6K$6.3M2.6%-13.8%
LPLA LPL FINANCIAL HOLDINGS INCFinancials19.5K$5.9M2.4%+35.7%
ON ON SEMICONDUCTORTechnology87.9K$5.4M2.2%-4.1%
NVCT NUVECTIS PHARMA INCHealthcare651.8K$5.0M2.0%+11.2%
NESR NATIONAL ENERGY SERVICES REUEnergy234.5K$5.0M2.0%-2.5%
FLEX FLEX LTDTechnology73.2K$4.8M1.9%+4.7%
CCK CROWN HOLDINGS INCIndustrials47.5K$4.8M1.9%-21.3%
CLVT CLARIVATE PLCTechnology1.8M$4.5M1.8%+17.0%
BRBR BELLRING BRANDS INCConsumer staples222.9K$3.6M1.5%New
GEN GEN DIGITAL INCTechnology189.3K$3.6M1.4%-0.5%
ENR ENERGIZER HOLDINGS INCTechnology205.8K$3.4M1.4%+115.4%
BKR BAKER HUGHES COIndustrials49.3K$3.0M1.2%-14.5%
KKR KKR & CO INCFinancials31.4K$2.9M1.2%+81.7%
SLB SLB LTDEnergy53.0K$2.7M1.1%-4.6%
TGTX TG THERAPEUTICS INCHealthcare75.3K$2.5M1.0%Held
ICE INTERCONTINENTAL EXCHANGE INFinancials15.5K$2.4M1.0%-4.0%
NKTR NEKTAR THERAPEUTICSHealthcare31.3K$2.3M0.9%+222.0%
QSR RESTAURANT BRANDS INTERNConsumer discretionary29.8K$2.2M0.9%-18.8%
BALL BALL CORPIndustrials35.1K$2.1M0.8%-71.4%
CRL CHARLES RIVER LABORATORIESHealthcare9.8K$1.7M0.7%-62.9%
MOH MOLINA HEALTHCARE INCFinancials7.8K$1.0M0.4%-4.5%
YOU CLEAR SECURE INC -CLASS ATechnology21.5K$1.0M0.4%-51.1%
RH RHConsumer discretionary6.1K$848K0.3%+102.6%
LH LABCORP HOLDINGS INCHealthcare2.8K$754K0.3%-22.4%
Z ZILLOW GROUP INC - CServices media18.0K$746K0.3%+390.0%
AMRZ AMRIZE LTDIndustrials12.5K$698K0.3%New
DBRG DIGITALBRIDGE GROUP INCFinancials39.5K$609K0.2%-90.1%
ELTX ELICIO THERAPEUTICS INCHealthcare30.1K$321K0.1%New
BCTX BRIACELL THERAPEUTICS CORPHealthcare65.0K$272K0.1%New

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRApr 24, 202644$246.7M canonicalSEC ↗
Q4 202513F-HRJan 23, 202646$271.6M canonicalSEC ↗
Q3 202513F-HROct 24, 202543$254.1M canonicalSEC ↗
Q2 202513F-HRAug 14, 202542$288.7M canonicalSEC ↗
Q1 202513F-HRApr 30, 202548$318.9M canonicalSEC ↗
Q4 202413F-HRJan 28, 202549$375.9M canonicalSEC ↗
Q3 202413F-HROct 25, 202454$467.1M canonicalSEC ↗
Q2 202413F-HRJul 26, 202452$443.1M canonicalSEC ↗
Q1 202413F-HRMay 1, 202455$509.6M canonicalSEC ↗