SEC 13F Intelligence

Managers / Q1 2026

IRIDIAN ASSET MANAGEMENT LLC/CT

CIK 0001033427 · 120 POST ROAD WEST, SUITE 201, WESTPORT, CT, 06880 · 2033417800

Reported Value
$247M
Q1 2026
Positions
44
Filings on Record
30
2019–present window
Filed
Apr 24, 2026
original filing

Summary

Iridian Asset Management LLC/Ct reported $247M in U.S.-listed holdings across 44 positions for Q1 2026.

Its largest position, Herbalife, represents 9.7% of the portfolio.

Compared with Q4 2025, the fund opened 5 new positions and exited 6.

Portfolio Metrics

Turnover
+7.2%
vs prior filed quarter
Top-10 Concentration
+62.0%
share of reported value
Largest Position
+9.7%
Herbalife
New / Exited
5 / 6
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $7.5BQ4 ’18Q1 ’19: $7.9BQ2 ’19: $6.9BQ3 ’19: $6.4BQ4 ’19: $6.1BQ4 ’19Q1 ’20: $4.1BQ2 ’20: $4.5BQ3 ’20: $4.6BQ4 ’20: $5.5BQ4 ’20Q1 ’21: $5.9BQ2 ’21: $5.7BQ3 ’21: $3.3BQ4 ’21: $1.6BQ4 ’21Q1 ’22: $1.4BQ2 ’22: $1.2BQ3 ’22: $1.0BQ2 ’23: $1.1BQ2 ’23Q3 ’23: $494MQ4 ’23: $551MQ1 ’24: $510MQ2 ’24: $443MQ2 ’24Q3 ’24: $467MQ4 ’24: $376MQ1 ’25: $319MQ2 ’25: $289MQ2 ’25Q3 ’25: $254MQ4 ’25: $272MQ1 ’26: $247Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 81.8%Other: 15.8%ADR: 2.4%Equity WRT: 0.0%
  • Common Stock · 81.8% · $202M
  • Other · 15.8% · $39M
  • ADR · 2.4% · $6M
  • Equity WRT · 0.0% · $66,957

Quarter-over-Quarter Changes full breakdown →

vs Q4 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
BRBRBELLRING BRANDS INCNEW+222.9K222.9K+$4M$4M
AMRIZE LTDNEW+12.5K12.5K+$697,953$697,953
ELTXELICIO THERAPEUTICS INCNEW+30.1K30.1K+$321,245$321,245
BCTBRIACELL THERAPEUTICS CORPNEW+65.0K65.0K+$272,350$272,350
BCTXLBRIACELL THERAPEUTICS CORPNEW+65.0K65.0K+$66,957$66,957
ZZILLOW GROUP INCADDED+14.4K18.0K+$495,309$746,495
NKTRNEKTAR THERAPEUTICSADDED+21.6K31.3K+$2M$2M
ENRENERGIZER HLDGS INCADDED+110.2K205.8K+$1M$3M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q1 2026

41 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1HERBALIFE LTDCOM SHS9.68%$24M1.62M
2ACVAACV AUCTIONS INChistory →COM CL A8.94%$22M5.20M
3HGVHILTON GRAND VACATIONS INChistory →COM7.69%$19M485.2K
4POSTPOST HLDGS INChistory →COM7.29%$18M182.0K
5LADLITHIA MTRS INChistory →COM6.64%$16M65.6K
6PGENPRECIGEN INChistory →COM5.64%$14M3.59M
7WD5ATRAVEL PLUS LEISURE COhistory →COM5.52%$14M197.0K
8AXSMAXSOME THERAPEUTICS INC.history →COM4.62%$11M67.5K
9PAHUSDELEMENT SOLUTIONS INChistory →COM3.27%$8M236.3K
10BILLBILL HOLDINGS INChistory →COM3.09%$8M198.7K
11KPLTKATAPULT HOLDINGS INChistory →COM NEW2.57%$6M897.1K
12ELVELEVANCE HEALTH INC FORMERLYhistory →COM2.57%$6M21.6K
13RTORENTOKIL INITIAL PLChistory →SPONSORED ADR2.41%$6M188.8K
14LPLALPL FINL HLDGS INChistory →COM2.38%$6M19.5K
15ONON SEMICONDUCTOR CORPhistory →COM2.21%$5M87.9K
16NVCTNUVECTIS PHARMA INChistory →COM2.04%$5M651.8K
17NATIONAL ENERGY SERVICES REUSHS2.04%$5M234.5K
18FLEXTRONICS INTL LTDORD1.94%$5M73.2K
19CCKCROWN HLDGS INChistory →COM1.93%$5M47.5K
20CLARIVATE PLCORD SHS1.83%$5M1.79M
21BRBRBELLRING BRANDS INChistory →COMMON STOCK1.45%$4M222.9K
22GENGEN DIGITAL INChistory →COM1.45%$4M189.3K
23ENRENERGIZER HLDGS INChistory →COM1.37%$3M205.8K
24BKRBAKER HUGHES COMPANYhistory →CL A1.22%$3M49.3K
25KKRKKR & CO INChistory →COM1.18%$3M31.4K
26SLBSLB LIMITEDhistory →COM STK1.10%$3M53.0K
27TGTXTG THERAPEUTICS INChistory →COM1.01%$3M75.3K
28ICEINTERCONTINENTAL EXCHANGE INCOM0.99%$2M15.5K
29NKTRNEKTAR THERAPEUTICSCOM NEW0.91%$2M31.3K
30QSRRESTAURANT BRANDS INTL INCCOM0.89%$2M29.8K
31BALLBALL CORPCOM0.84%$2M35.1K
32CHARLES RIV LABS INTL INCCOM0.69%$2M9.8K
33MOHMOLINA HEALTHCARE INCCOM0.42%$1M7.8K
34YOUCLEAR SECURE INCCOM CL A0.42%$1M21.5K
35RHRHCOM0.34%$848,2886.1K
36LHLABCORP HOLDINGS INCCOM SHS0.31%$754,2722.8K
37ZZILLOW GROUP INCCL C CAP STK0.30%$746,49518.0K
38AMRIZE LTDSHS0.28%$697,95312.5K
39DBRGDIGITALBRIDGE GROUP INCCL A NEW0.25%$609,36839.5K
40BCTBRIACELL THERAPEUTICS CORPCOM · *W EXP 01/15/2030.14%$339,307130.0K
41ELTXELICIO THERAPEUTICS INCCOM0.13%$321,24530.1K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$247M44Apr 24, 202613F-HRchanges · EDGAR ↗
Q4 2025$272M46Jan 23, 202613F-HRchanges · EDGAR ↗
Q3 2025$254M43Oct 24, 202513F-HRchanges · EDGAR ↗
Q2 2025$289M42Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$319M48Apr 30, 202513F-HRchanges · EDGAR ↗
Q4 2024$376M49Jan 28, 202513F-HRchanges · EDGAR ↗
Q3 2024$467M54Oct 25, 202413F-HRchanges · EDGAR ↗
Q2 2024$443M52Jul 26, 202413F-HRchanges · EDGAR ↗
Q1 2024$510M55May 1, 202413F-HRchanges · EDGAR ↗
Q4 2023$551M54Jan 26, 202413F-HRchanges · EDGAR ↗
Q3 2023$494M51Oct 30, 202313F-HRchanges · EDGAR ↗
Q2 2023$1.1B52Aug 9, 202313F-HRchanges · EDGAR ↗
Q1 2023Under review48Apr 28, 202313F-HRchanges · EDGAR ↗
Q4 2022Under review55Jan 31, 202313F-HRchanges · EDGAR ↗
Q3 2022$1.0B59Nov 7, 202213F-HRchanges · EDGAR ↗
Q2 2022$1.2B58Jul 29, 202213F-HRchanges · EDGAR ↗
Q1 2022$1.4B55May 2, 202213F-HRchanges · EDGAR ↗
Q4 2021$1.6B76Feb 10, 202213F-HRchanges · EDGAR ↗
Q3 2021$3.3B95Nov 10, 202113F-HRchanges · EDGAR ↗
Q2 2021$5.7B113Aug 11, 202113F-HRchanges · EDGAR ↗
Q1 2021$5.9B119May 11, 202113F-HRchanges · EDGAR ↗
Q4 2020$5.5B90Feb 8, 202113F-HRchanges · EDGAR ↗
Q3 2020$4.6B79Nov 2, 202013F-HRchanges · EDGAR ↗
Q2 2020$4.5B73Aug 10, 202013F-HRchanges · EDGAR ↗
Q1 2020$4.1B78May 11, 202013F-HRchanges · EDGAR ↗
Q4 2019$6.1B77Feb 3, 202013F-HRchanges · EDGAR ↗
Q3 2019$6.4B81Nov 6, 201913F-HRchanges · EDGAR ↗
Q2 2019$6.9B75Jul 31, 201913F-HRchanges · EDGAR ↗
Q1 2019$7.9B73May 6, 201913F-HRchanges · EDGAR ↗
Q4 2018$7.5B70Feb 7, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.