Skip to content
Disclosery

IRIDIAN ASSET MANAGEMENT LLC/CT

Follow

13F filer, CIK 1033427, WESTPORT, CT

IRIDIAN ASSET MANAGEMENT LLC/CT reported $254,080,076 across 43 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-10-24. Its ten largest share positions make up 59.53% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001033427-25-000014

Period
2025-09-30
Reported value
$254M
Holdings
43
Top 10 weight
59.53%
New
4
Sold out
3

Stakes and trades reported after 2025-09-30

13D, 13G and Form 4 filings by this filer's group, dated after the 13F period, on securities the quarter does not hold as shares.

  • KATAPULT HOLDINGS INC: 13G/A 919,498 shares, 1.1% of the class, 13G/A filed 2026-10-01, 0001033427-26-000012
    Accepted , ingested

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ACVAadded+649,358$6.44M
HGVadded+75,453$3.15M
SLBnew+60,916$2.09M
IMRXnew+275,086$1.93M
HLFadded+220,896$1.86M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
SPYexited-40,000-$24.7M
WBDreduced-405,885-$7.93M
TNLreduced-133,235-$7.93M
YOUreduced-125,171-$4.18M
KPLTreduced-256,228-$3.06M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001033427-25-000014, largest first. % of portfolio is the value over $254,080,076, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
HLFHERBALIFE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,228,193 shares; 2024Q4: 2,507,740 shares; 2025Q1: 2,775,430 shares; 2025Q2: 2,228,259 shares; 2025Q3: 2,449,155 shares 2,449,155$20.7M8.14%+220,896Timeline
ACVAACV AUCTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,062,081 shares; 2024Q4: 1,106,154 shares; 2025Q1: 1,967,332 shares; 2025Q2: 1,231,493 shares; 2025Q3: 1,880,851 shares 1,880,851$18.6M7.34%+649,358Timeline
TNLTRAVEL PLUS LEISURE COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 534,156 shares; 2024Q4: 503,893 shares; 2025Q1: 477,224 shares; 2025Q2: 438,650 shares; 2025Q3: 305,415 shares 305,415$18.2M7.15%-133,235Timeline
ELVELEVANCE HEALTH INC FORMERLYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 39,154 shares; 2024Q4: 60,197 shares; 2025Q1: 51,991 shares; 2025Q2: 46,622 shares; 2025Q3: 52,103 shares 52,103$16.8M6.63%+5,481Timeline
RTORENTOKIL INITIAL PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 719,795 shares; 2024Q4: 728,764 shares; 2025Q1: 828,361 shares; 2025Q2: 697,212 shares; 2025Q3: 614,609 shares 614,609$15.5M6.11%-82,603Timeline
LADLITHIA MTRS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 65,641 shares; 2024Q4: 53,849 shares; 2025Q1: 61,424 shares; 2025Q2: 53,371 shares; 2025Q3: 47,298 shares 47,298$14.9M5.88%-6,073Timeline
POSTPOST HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 171,188 shares; 2024Q4: 206,013 shares; 2025Q1: 173,674 shares; 2025Q2: 139,955 shares; 2025Q3: 119,081 shares 119,081$12.8M5.04%-20,874Timeline
PGENPRECIGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,775,960 shares; 2024Q4: 5,241,922 shares; 2025Q1: 4,585,809 shares; 2025Q2: 4,278,662 shares; 2025Q3: 3,666,946 shares 3,666,946$12.1M4.75%-611,716Timeline
HGVHILTON GRAND VACATIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 311,673 shares; 2024Q4: 299,963 shares; 2025Q1: 289,601 shares; 2025Q2: 198,602 shares; 2025Q3: 274,055 shares 274,055$11.5M4.51%+75,453Timeline
AXSMAXSOME THERAPEUTICS INC.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 126,803 shares; 2024Q4: 125,079 shares; 2025Q1: 106,312 shares; 2025Q2: 91,761 shares; 2025Q3: 83,553 shares 83,553$10.1M3.99%-8,208Timeline
BILLBILL HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 294,668 shares; 2024Q4: 53,705 shares; 2025Q1: 109,849 shares; 2025Q2: 144,427 shares; 2025Q3: 151,554 shares 151,554$8.03M3.16%+7,127Timeline
LNWOLIGHT & WONDER INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 51,571 shares; 2024Q4: 100,192 shares; 2025Q1: 83,351 shares; 2025Q2: 89,167 shares; 2025Q3: 81,186 shares 81,186$6.81M2.68%-7,981Timeline
GTLSCHART INDS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 42,957 shares; 2024Q4: 35,890 shares; 2025Q1: 30,468 shares; 2025Q2: 31,107 shares; 2025Q3: 29,377 shares 29,377$5.88M2.31%-1,730Timeline
GENGEN DIGITAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 482,450 shares; 2024Q4: 441,492 shares; 2025Q1: 413,578 shares; 2025Q2: 231,511 shares; 2025Q3: 193,957 shares 193,957$5.51M2.17%-37,554Timeline
CCKCROWN HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 195,849 shares; 2024Q4: 222,292 shares; 2025Q1: 197,782 shares; 2025Q2: 82,664 shares; 2025Q3: 56,650 shares 56,650$5.47M2.15%-26,014Timeline
ESIELEMENT SOLUTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 290,769 shares; 2024Q4: 258,845 shares; 2025Q1: 259,065 shares; 2025Q2: 210,724 shares; 2025Q3: 192,525 shares 192,525$4.85M1.91%-18,199Timeline
DBRGDIGITALBRIDGE GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 387,827 shares; 2024Q4: 365,504 shares; 2025Q1: 393,723 shares; 2025Q2: 351,017 shares; 2025Q3: 399,393 shares 399,393$4.67M1.84%+48,376Timeline
LPLALPL FINL HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 82,834 shares; 2024Q4: 28,902 shares; 2025Q1: 20,901 shares; 2025Q2: 13,937 shares; 2025Q3: 13,847 shares 13,847$4.61M1.81%-90Timeline
FLEXFLEX LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 533,225 shares; 2024Q4: 146,884 shares; 2025Q1: 104,144 shares; 2025Q2: 100,290 shares; 2025Q3: 78,916 shares 78,916$4.57M1.8%-21,374Timeline
CRLCHARLES RIV LABS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 55,043 shares; 2024Q4: 50,965 shares; 2025Q1: 60,419 shares; 2025Q2: 47,566 shares; 2025Q3: 28,626 shares 28,626$4.48M1.76%-18,940Timeline
CLVTCLARIVATE PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,045,679 shares; 2024Q4: 1,120,550 shares; 2025Q1: 1,152,149 shares; 2025Q2: 905,076 shares; 2025Q3: 1,002,958 shares 1,002,958$3.84M1.51%+97,882Timeline
AVADEL PHARMACEUTICALSAVADEL PHARMACEUTICALSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 167,700 shares; 2024Q4: 169,586 shares; 2025Q1: 249,586 shares; 2025Q2: 249,586 shares; 2025Q3: 249,586 shares 249,586$3.81M1.5%0
KPLTKATAPULT HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 400,000 shares; 2024Q4: 438,000 shares; 2025Q1: 576,648 shares; 2025Q2: 564,844 shares; 2025Q3: 308,616 shares 308,616$3.69M1.45%-256,228Timeline
ONON SEMICONDUCTOR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 90,709 shares; 2024Q4: 88,355 shares; 2025Q1: 105,460 shares; 2025Q2: 69,740 shares; 2025Q3: 62,854 shares 62,854$3.1M1.22%-6,886Timeline
BKRBAKER HUGHES COMPANYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 145,094 shares; 2024Q4: 78,958 shares; 2025Q1: 70,026 shares; 2025Q2: 73,826 shares; 2025Q3: 63,016 shares 63,016$3.07M1.21%-10,810Timeline
QSRRESTAURANT BRANDS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 61,838 shares; 2024Q4: 107,983 shares; 2025Q1: 115,870 shares; 2025Q2: 46,615 shares; 2025Q3: 47,389 shares 47,389$3.04M1.2%+774Timeline
WBDWARNER BROS DISCOVERY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 189,715 shares; 2024Q4: 448,784 shares; 2025Q1: 572,923 shares; 2025Q2: 549,062 shares; 2025Q3: 143,177 shares 143,177$2.8M1.1%-405,885Timeline
TGTXTG THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 47,532 shares; 2024Q4: 47,532 shares; 2025Q1: 47,532 shares; 2025Q2: 47,532 shares; 2025Q3: 75,289 shares 75,289$2.72M1.07%+27,757Timeline
NESRNATIONAL ENERGY SERVICES REUQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 153,836 shares; 2025Q1: 273,944 shares; 2025Q2: 224,765 shares; 2025Q3: 252,754 shares 252,754$2.59M1.02%+27,989Timeline
NVCTNUVECTIS PHARMA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 55,380 shares; 2024Q4: not reported; 2025Q1: 253,972 shares; 2025Q2: 372,717 shares; 2025Q3: 405,621 shares 405,621$2.44M0.96%+32,904Timeline
BALLBALL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 22,971 shares; 2025Q2: 26,848 shares; 2025Q3: 46,624 shares 46,624$2.35M0.93%+19,776Timeline
KKRKKR & CO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 27,084 shares; 2024Q4: 20,825 shares; 2025Q1: 20,015 shares; 2025Q2: 18,285 shares; 2025Q3: 16,405 shares 16,405$2.13M0.84%-1,880Timeline
SLBSLB LIMITEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 60,916 shares 60,916$2.09M0.82%newTimeline
IMRXIMMUNEERING CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 275,086 shares 275,086$1.93M0.76%newTimeline
MOHMOLINA HEALTHCARE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,522 shares; 2024Q4: 2,522 shares; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 9,557 shares 9,557$1.83M0.72%newTimeline
ICEINTERCONTINENTAL EXCHANGE INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 24,477 shares; 2024Q4: 22,364 shares; 2025Q1: 16,117 shares; 2025Q2: 11,493 shares; 2025Q3: 10,062 shares 10,062$1.7M0.67%-1,431Timeline
YOUCLEAR SECURE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 164,572 shares; 2024Q4: 180,175 shares; 2025Q1: 167,737 shares; 2025Q2: 172,858 shares; 2025Q3: 47,687 shares 47,687$1.59M0.63%-125,171Timeline
LHLABCORP HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 22,216 shares; 2024Q4: 20,495 shares; 2025Q1: 4,223 shares; 2025Q2: 3,907 shares; 2025Q3: 3,993 shares 3,993$1.15M0.45%+86Timeline
GBTCGRAYSCALE BITCOIN TRUST ETFQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 20,300 shares; 2024Q4: 11,836 shares; 2025Q1: 10,559 shares; 2025Q2: 10,559 shares; 2025Q3: 10,559 shares 10,559$948K0.37%0Timeline
CLNECLEAN ENERGY FUELS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 146,377 shares; 2024Q4: 146,377 shares; 2025Q1: 247,468 shares; 2025Q2: 247,468 shares; 2025Q3: 141,549 shares 141,549$365K0.14%-105,919Timeline
ZZILLOW GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,286 shares; 2024Q4: 6,166 shares; 2025Q1: 5,816 shares; 2025Q2: 4,571 shares; 2025Q3: 3,952 shares 3,952$305K0.12%-619Timeline
FTREFORTREA HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 52,807 shares; 2024Q4: 47,924 shares; 2025Q1: 49,272 shares; 2025Q2: 34,686 shares; 2025Q3: 29,965 shares 29,965$252K0.1%-4,721Timeline
ETHGRAYSCALE ETHEREUM STAKINGQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 5,465 shares 5,465$214K0.08%newTimeline

Sold out in Q3 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
SPYSTATE STR SPDR S&P 500 ETF T40,000$24.7Mshares
CHAMPIONX CORPORATIONCHAMPIONX CORPORATION94,662$2.35Mshares
NATIONAL ENERGY SERVICES REUNATIONAL ENERGY SERVICES REU251,071$139Kshares

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001033427-25-000014 base2025-10-24acceptance time not in the bulk data set