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Livermore
Livermore
ZHEN

Iridian Asset Management LLC

SEC CIK
0001033427
Latest filing
Jul 29, 2026

The latest 13F from Iridian Asset Management LLC covers Q2 2026 (filed Jul 29, 2026): 41 long positions worth $291.1M. The top 10 holdings make up 67.2% of the portfolio, and the largest is ACV Auctions Inc. (ACVA) at 11.3%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
2
Est. +$1.91M
Added
9
Est. +$20.4M
Reduced
27
Est. −$32.9M
Sold out
3
Est. −$3.06M

Top 5 holdings

Share of this quarter's portfolio value

  1. ACVAACV Auctions Inc.
    11.3%$32.9MHistory
  2. HLFHerbalife Ltd.
    9.4%$27.3MHistory
  3. HGVHilton Grand Vacations Inc.
    8.3%$24.1MHistory
  4. PGENPrecigen, Inc.
    7.9%$23.0MHistory
  5. POSTPost Holdings, Inc.
    6.8%$19.8MHistory

Share of portfolio

Top 5 holdings and the other 36 positions, by share of portfolio value

  1. ACVA11.3%
  2. HLF9.4%
  3. HGV8.3%
  4. PGEN7.9%
  5. POST6.8%
  6. Other 36 positions56.3%

Biggest buys

New and added positions, by estimated amount bought

  1. HLFHerbalife Ltd.
    +$6.01MAddedHistory
  2. POSTPost Holdings, Inc.
    +$3.79MAddedHistory
  3. PGENPrecigen, Inc.
    +$2.50MAddedHistory
  4. NVCTNuvectis Pharma, Inc.
    +$2.30MAddedHistory
  5. LPLALPL Financial Holdings Inc.
    +$2.18MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. NVCTNuvectis Pharma, Inc.
    +2.87 pp2.0% → 4.9%History
  2. PGENPrecigen, Inc.
    +2.26 pp5.6% → 7.9%History
  3. AMRZAmrize Ltd
    +0.66 pp0.3% → 0.9%History
  4. ABVXAbivax S.A.
    +0.42 pp0.0% → 0.4%History
  5. LPLALPL Financial Holdings Inc.
    +0.26 pp2.4% → 2.6%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. AXSMAxsome Therapeutics, Inc.
    −$4.79MReducedHistory
  2. ACVAACV Auctions Inc.
    −$4.48MReducedHistory
  3. FLEXFlex Ltd.
    −$3.20MReducedHistory
  4. ENREnergizer Holdings, Inc.
    −$2.96MReducedHistory
  5. TGTXTG Therapeutics, Inc.
    −$2.62MReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. RTORentokil Initial PLC
    −0.95 pp2.4% → 1.5%History
  2. ENREnergizer Holdings, Inc.
    −0.87 pp1.4% → 0.5%History
  3. BILLBILL Holdings, Inc.
    −0.75 pp3.1% → 2.3%History
  4. CRLCharles River Laboratories International, Inc.
    −0.69 pp0.7% → 0.0%History
  5. CLVTClarivate PLC
    −0.62 pp1.8% → 1.2%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$291.1M
+$44.4M (+18.0%) vs. prior quarter
Positions
41
−1 vs. prior quarter
Top 10 concentration
67.2%
Top 10 as share of value
Turnover
8.3%
Q2 2026, one quarter
Average holding period
18.9 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $5.72B (Q1 2021)

Q1 2021: $5.72BQ2 2021: $5.57BQ3 2021: $3.20BQ4 2021: $1.59BQ1 2022: $1.33BQ2 2022: $1.22BQ3 2022: $1.01BQ4 2022: $1.04BQ1 2023: $1.22BQ2 2023: $1.07BQ3 2023: $493.8MQ4 2023: $551.3MQ1 2024: $509.6MQ2 2024: $443.1MQ3 2024: $467.1MQ4 2024: $375.9MQ1 2025: $318.9MQ2 2025: $288.7MQ3 2025: $254.1MQ4 2025: $271.6MQ1 2026: $246.7MQ2 2026: $291.1M
Q1 2021Q2 2026
13F filings of Iridian Asset Management LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 29, 202641$291.1MACVAHLFHGVvs. Q1 2026SEC
Q1 2026Apr 24, 202642$246.7MHLFACVAHGVvs. Q4 2025SEC
Q4 2025Jan 23, 202643$271.6MACVAHLFHGVvs. Q3 2025SEC
Q3 2025Oct 24, 202543$254.1MHLFACVATNLvs. Q2 2025SEC
Q2 2025Aug 14, 202542$288.7MSPYTNLACVAvs. Q1 2025SEC
Q1 2025Apr 30, 202545$318.9MACVAHLFELVvs. Q4 2024SEC
Q4 2024Jan 28, 202548$375.9MSPYTNLACVAvs. Q3 2024SEC
Q3 2024Oct 25, 202453$467.1MSPYiShares Russell 2000 ETFTNLvs. Q2 2024SEC
Q2 2024Jul 26, 202451$443.1MSPYiShares Russell 2000 ETFTNLvs. Q1 2024SEC
Q1 2024May 1, 202455$509.6MSPYiShares Russell 2000 ETFTNLvs. Q4 2023SEC
Q4 2023Jan 26, 202452$551.3MiShares Russell 2000 ETFSPYFLEXvs. Q3 2023SEC
Q3 2023Oct 30, 202350$493.8MSPYiShares Russell 2000 ETFTNLvs. Q2 2023SEC
Q2 2023Aug 9, 202350$1.07BSPYiShares Russell 2000 ETFTNLvs. Q1 2023SEC
Q1 2023Apr 28, 202347$1.22BSPYiShares Russell 2000 ETFFLEXvs. Q4 2022SEC
Q4 2022Jan 31, 202352$1.04BSPYFLEXPOSTvs. Q3 2022SEC
Q3 2022Nov 7, 202254$1.01BSPYiShares Russell 2000 ETFPOSTvs. Q2 2022SEC
Q2 2022Jul 29, 202253$1.22BSPYiShares Russell 2000 ETFPOSTvs. Q1 2022SEC
Q1 2022May 2, 202248$1.33BFLEXTNLCCKvs. Q4 2021SEC
Q4 2021Feb 10, 202264$1.59BCCKFLEXTNLvs. Q3 2021SEC
Q3 2021Nov 10, 202177$3.20BFLEXPOSTLHvs. Q2 2021SEC
Q2 2021Aug 11, 202193$5.57BLHFLEXPOSTvs. Q1 2021SEC
Q1 2021May 11, 2021103$5.72BLHFLEXPOST–SEC

13D and 13G filings

Companies where Iridian Asset Management LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Iridian Asset Management LLC does not currently report owning 5% or more of any company.

Latest filings

11 filings on file made by Iridian Asset Management LLC or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Iridian Asset Management LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
KPLTKatapult Holdings, Inc.Oct 1, 20261:30 PM ET13G/A1.10%919.5K shares−18.40 ppfrom 19.50%Below 5%Sep 18, 2026SEC
KPLTKatapult Holdings, Inc.Jan 2, 202612:11 PM ET13G/A19.50%920.0K shares+9.50 ppfrom 10.00%Dec 31, 2025SEC
KPLTKatapult Holdings, Inc.Jan 10, 202512:37 PM ET13G/A10.00%439.5K shares–Jan 8, 2025SEC
KPLTKatapult Holdings, Inc.Jan 24, 202413G/AOld format–––SEC
KPLTKatapult Holdings, Inc.Feb 3, 202313GOld format–––SEC
TNLTravel & Leisure Co.Jan 18, 202213G/AOld format–––SEC
KPLTKatapult Holdings, Inc.Jan 18, 202213G/AOld format–––SEC
AXSMAxsome Therapeutics, Inc.Jan 18, 202213G/AOld format–––SEC
TNLTravel & Leisure Co.Feb 4, 202113G/AOld format–––SEC
AXSMAxsome Therapeutics, Inc.Feb 4, 202113GOld format–New–SEC
KPLTKatapult Holdings, Inc.Jan 6, 202113GOld format–New–SEC