13F Insight
DOSSIER · 13F-HR · Q4 2025

IRIDIAN ASSET MANAGEMENT LLC/CT

$272M in tracked AUM across 46 positions as of Q4 2025.

IA
CIK 0001033427 · last filed Dec 31, 2025
Total AUM
$272M
as of Q4 2025
Holdings
46
—
positions
Whale Score
51
51
tracked
Activity
—
no data
changes this Q
AI Analysis · Q4 2025
Comprehensive Analysis of Iridian Asset Management LLC (SEC 13F Filing)
Portfolio Overview

Iridian Asset Management LLC reported a significant expansion in its portfolio for the period ending December 31, 2025. The total portfolio value surged by 102.8%, rising from $133.91M to $271.62M. This dramatic increase in Assets Under Management (AUM) was driven not only by potential market appreciation but also by a substantial increase in portfolio activity, with the number of holdin...

The portfolio is moderately concentrated, with the top 10 positions accounting for approximately 57% of the total value. The manager demonstrates a high turnover strategy, characterized by aggressive portfolio rotation this quarter. The filing indicates a major restructuring, with 21 new positions initiated, 3 complete exits, and significant churn among existing stakes (9 increases and 12 reductions). This suggests an active management style focused on capitalizing on specific short-to-medium term opportunities rather than passive indexing.

Key Holdings

Quarter at a glance — Q4 2025

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q4 2025.

#HoldingValueSharesWeight
01
ACVA
ACV AUCTIONS INC
$24M3.0M8.8%02
G4412G101
HERBALIFE LTD
$24M1.8M8.7%03
HGV
HILTON GRAND VACATIONS INC
$21M465K7.7%04
POST
POST HLDGS INC
$17M169K6.2%05
LAD
LITHIA MTRS INC
$16M47K5.8%06
PGEN
PRECIGEN INC
$15M3.6M5.5%07
TNL
TRAVEL PLUS LEISURE CO
$15M210K5.4%08
AXSM
AXSOME THERAPEUTICS INC
$13M74K5.0%09
BILL
BILL HOLDINGS INC
$10M187K3.8%10
RTO
RENTOKIL INITIAL PLC
$9M306K3.3%

Filing history

2025Q4Dec 31
$272M▲ 6.9%
46 positionsView →2025Q3Sep 30
$254M▼ 12.0%
43 positionsView →2025Q2Jun 30
$289M▲ 91.8%
42 positionsLocked2025Q1Mar 31
$151M▼ 60.0%
28 positionsLocked2024Q4Dec 31
$376M▼ 19.5%
49 positionsLocked2024Q3Sep 30
$467M▲ 5.4%
54 positionsLocked2024Q2Jun 30
$443M▼ 13.1%
52 positionsLocked2024Q1Mar 31
$510M▼ 7.5%
55 positionsLocked2023Q4Dec 31
$551M▲ 11.6%
54 positionsLocked2023Q3Sep 30
$494M▼ 54.0%
51 positionsLocked2023Q2Jun 30
$1.1B▼ 11.9%
52 positionsLocked2023Q1Mar 31
$1.2B▲ 117373.0%
48 positionsLocked
Showing 12 of 79