Q3 2026 13F · SEC CIK 1033427

Iridian Asset Management Llc/ct

Asset managerFiled 2026-10-23 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $274.9M
Reported positions: 41
Top holdings a year, 3 yrs: +16.5%
Average holding period: 5.9 yrs

Iridian Asset Management Llc/ct is an asset manager that reported 41 positions worth $274.9M in its Q3 2026 13F, filed 2026-10-23. Its largest holdings were Acv Auctions Inc (ACVA, 11.7%), Precigen Inc (PGEN, 9.5%), Herbalife Ltd (HLF, 9.1%). A portfolio copying its top holdings returned 16.5% a year over the last 3 years, against 20.4% for the S&P 500.

Iridian Asset Management Llc/ct holdings all 41 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Iridian Asset Management Llc/ct 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
ACVAAcv Auctions Inc	11.7%	11.3%	3,072,272	-32.9%	$32.0M
PGENPrecigen Inc	9.5%	7.9%	3,064,571	-24.0%	$26.2M
HLFHerbalife Ltd	9.1%	9.4%	2,059,360	-0.9%	$25.0M
HGVHilton Grand Vacations Inc	9.0%	8.3%	711,664	+54.5%	$24.7M
POSTPost Hldgs Inc	7.1%	6.8%	268,652	+19.5%	$19.6M
NVCTNuvectis Pharma Inc	6.1%	4.9%	793,207	+2.1%	$16.8M
LADLithia Motors Inc	5.0%	6.4%	46,797	-26.7%	$13.7M
TNLTravel Plus Leisure Co	4.5%	5.2%	198,075	+1.0%	$12.3M
AXSMAxsome Therapeutics, Inc.	3.0%	4.0%	45,129	-5.8%	$8.3M
ESIElement Solutions Inc	3.0%	3.0%	224,053	+21.3%	$8.1M
LPLALpl Finl Hldgs Inc	2.6%	2.6%	23,436	-14.0%	$7.2M
ONOn Semiconductor Corp	2.5%	2.4%	88,134	+20.8%	$6.8M
NKTRNektar Therapeutics	2.1%	0.9%	94,697	+144.1%	$5.7M
FLEXFlex Ltd Ord	2.1%	3.0%	52,010	-2.7%	$5.7M
BILLBill Holdings Inc	1.9%	2.3%	123,999	-34.0%	$5.3M
CCKCrown Hldgs Inc	1.7%	1.7%	45,211	+0.6%	$4.8M
NESRNational Energy Services Reuni Shs	1.7%	2.3%	183,671	-19.2%	$4.7M
RTORentokil Initial PLC	1.6%	1.5%	228,252	+54.2%	$4.5M
KPLTKatapult Holdings Inc	1.5%	2.0%	919,498	+5.3%	$4.0M
ELVElevance Health Inc Formerly	1.4%	2.0%	10,252	-31.6%	$4.0M
BRBRBellring Brands Inc	1.2%	1.3%	444,504	+56.0%	$3.4M
BALLBall Corp	1.0%	0.7%	47,762	+44.1%	$2.7M
CLVTClarivate PLC	0.9%	1.2%	1,480,574	-9.4%	$2.5M
KKRKkr & Co Inc	0.9%	0.9%	26,878	-9.3%	$2.5M
ICEIntercontinental Exchange Inc	0.8%	0.7%	15,361	-9.5%	$2.3M
BKRBaker Hughes Company Cl A	0.8%	0.9%	42,221	-9.4%	$2.3M
GENGen Digital Inc	0.8%	1.3%	104,730	-31.2%	$2.3M
XYLXylem Inc	0.8%	New	20,710	—	$2.1M
FLSFlowserve Corp	0.8%	0.2%	28,403	+203.8%	$2.1M
AMRZAmrize Ltd Shs	0.6%	0.9%	46,728	-9.3%	$1.7M
SLBSlb Limited	0.6%	0.7%	35,666	-18.8%	$1.7M
YOUClear Secure Inc	0.6%	New	40,344	—	$1.7M
ABVXAbivax SA	0.6%	0.4%	17,005	+85.5%	$1.7M
QSRRestaurant Brands Intl Inc	0.6%	0.6%	21,892	-8.4%	$1.6M
TGTXTG Therapeutics Inc	0.6%	0.5%	27,689	+0.0%	$1.5M
ENREnergizer Hldgs Inc	0.5%	0.5%	61,719	-9.1%	$1.3M
INVAInnoviva Inc	0.3%	New	40,654	—	$862K
RHRh Com	0.2%	0.3%	4,916	-14.0%	$599K
ZZillow Group Inc	0.2%	0.2%	15,424	-9.3%	$418K
BCTXBriacell Therapeutics Corp	0.1%	0.1%	65,000	+0.0%	$278K
BCTXLBriacell Therapeutics Corp	0.0%	0.0%	65,000	+0.0%	$75K

What Iridian Asset Management Llc/ct bought and sold in Q3 2026, against Q2 2026.

Sold out

Share counts compared with the Q2 2026 13F; a split also changes share counts.

How the holdings did against the S&P 500.

1 year: +25.5% /yr; S&P 500 +20.1%
3 years: +16.5% /yr; S&P 500 +20.4%
5 years: +13.9% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$274.9M	41
Q2 2026	$291.1M	41
Q1 2026	$246.7M	42
Q4 2025	$271.6M	43
Q3 2025	$254.1M	43
Q2 2025	$288.7M	42
Q1 2025	$318.9M	45
Q4 2024	$375.9M	48
Q3 2024	$467.1M	53
Q2 2024	$443.1M	51
Q1 2024	$509.6M	55
Q4 2023	$551.3M	52

Questions about Iridian Asset Management Llc/ct's portfolio

What stocks does Iridian Asset Management Llc/ct own?

Iridian Asset Management Llc/ct's latest 13F, for Q3 2026 and filed Oct 23, 2026, lists 41 positions worth $274.9M. The largest are Acv Auctions Inc (ACVA) at 11.7%, Precigen Inc (PGEN) at 9.5%, Herbalife Ltd (HLF) at 9.1%, Hilton Grand Vacations Inc (HGV) at 9.0% and Post Hldgs Inc (POST) at 7.1%.

What did Iridian Asset Management Llc/ct buy last quarter?

In Q3 2026, Iridian Asset Management Llc/ct added a new position in Xylem Inc (XYL), a new position in Clear Secure Inc (YOU), a new position in Innoviva Inc (INVA), Flowserve Corp (FLS) (+203.8% shares), Nektar Therapeutics (NKTR) (+144.1% shares) and Abivax SA (ABVX) (+85.5% shares), compared with its Q2 2026 filing.

What did Iridian Asset Management Llc/ct sell last quarter?

In Q3 2026, Iridian Asset Management Llc/ct sold all of Digitalbridge Group Inc (DBRG), sold all of Labcorp Holdings Inc (LH), sold all of Molina Healthcare Inc (MOH), Bill Holdings Inc (BILL) (-34.0% shares), Acv Auctions Inc (ACVA) (-32.9% shares) and Elevance Health Inc Formerly (ELV) (-31.6% shares), compared with its Q2 2026 filing.

How has Iridian Asset Management Llc/ct's portfolio performed?

A portfolio copying Iridian Asset Management Llc/ct's 20 largest 13F holdings each quarter, from the day each filing was public, returned +16.5% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +25.5% against +20.1%. Over 5 years: +13.9% a year against +11.6%.

When is Iridian Asset Management Llc/ct's next 13F filing due?

13F filings are due 45 days after each quarter ends. Iridian Asset Management Llc/ct's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.