Iridian Asset Management LLC reported 38 positions worth $273.95M for the quarter ended Sep 30, 2026, down 5.3% on the prior quarter. It opened 3 new positions, added to 14, trimmed 20 and exited 2. Its largest holding is ACV Auctions Inc. at 11.7% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| HGV Hilton Grand Vacations Inc. | +251.1K | +54.5% | $8.70M | 9% |
| NKTR Nektar Therapeutics | +55.9K | +144.1% | $3.38M | 2.09% |
| POST Post Holdings, Inc. | +43.8K | +19.5% | $3.19M | 7.14% |
| XYL Xylem Inc. | +20.7K | – | $2.10M | 0.766% |
| YOU Clear Secure, Inc. | +40.3K | – | $1.69M | 0.618% |
| RTO Rentokil Initial Plc | +80.2K | +54.2% | $1.58M | 1.65% |
| ESI Element Solutions Inc | +39.4K | +21.3% | $1.43M | 2.97% |
| FLS Flowserve Corp | +19.1K | +203.8% | $1.39M | 0.758% |
| BRBR Bellring Brands, Inc. | +159.6K | +56.0% | $1.23M | 1.25% |
| ON On Semiconductor Corp | +15.2K | +20.8% | $1.16M | 2.47% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ACVA ACV Auctions Inc. | -1.51M | -32.9% | $15.70M | 11.7% |
| PGEN Precigen, Inc. | -967.4K | -24.0% | $8.28M | 9.58% |
| LAD Lithia Motors Inc | -17.1K | -26.7% | $4.98M | 4.99% |
| BILL BILL Holdings, Inc. | -63.8K | -34.0% | $2.72M | 1.93% |
| ELV Elevance Health, Inc. | -4,737 | -31.6% | $1.84M | 1.46% |
| LPLA LPL Financial Holdings Inc. | -3,811 | -14.0% | $1.17M | 2.62% |
| NESR National Energy Services Reunited Corp. | -43.6K | -19.2% | $1.11M | 1.71% |
| GEN Gen Digital Inc. | -47.6K | -31.2% | $1.05M | 0.842% |
| AXSM Axsome Therapeutics, Inc. | -2,795 | -5.8% | $515.37K | 3.04% |
| LH Labcorp Holdings Inc. | -1,771 | -100.0% | $495.88K | Exited |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | ACVA ACV Auctions Inc. | Technology | 3.07M | $32.04M | 11.7% | -1.51M | -32.9% | Reduced | 1.8% |
| 2 | PGEN Precigen, Inc. | Healthcare | 3.06M | $26.23M | 9.58% | -967.4K | -24.0% | Reduced | 0.86% |
| 3 | HLF Herbalife Ltd. | Consumer Staples | 2.06M | $24.98M | 9.12% | -18.9K | -0.9% | Reduced | 1.96% |
| 4 | HGV Hilton Grand Vacations Inc. | Consumer Discretionary | 711.7K | $24.67M | 9% | +251.1K | +54.5% | Added | 0.93% |
| 5 | POST Post Holdings, Inc. | Consumer Staples | 268.7K | $19.57M | 7.14% | +43.8K | +19.5% | Added | 0.6% |
| 6 | NVCT Nuvectis Pharma, Inc. | Healthcare | 793.2K | $16.75M | 6.12% | +16.1K | +2.1% | Added | 2.43% |
| 7 | LAD Lithia Motors Inc | Consumer Discretionary | 46.8K | $13.66M | 4.99% | -17.1K | -26.7% | Reduced | 0.21% |
| 8 | TNL Travel & Leisure Co. | Consumer Discretionary | 198.1K | $12.25M | 4.47% | +1,873 | +1.0% | Added | 0.32% |
| 9 | AXSM Axsome Therapeutics, Inc. | Healthcare | 45.1K | $8.32M | 3.04% | -2,795 | -5.8% | Reduced | 0.09% |
| 10 | ESI Element Solutions Inc | Basic Materials | 224.1K | $8.13M | 2.97% | +39.4K | +21.3% | Added | 0.09% |
| 11 | LPLA LPL Financial Holdings Inc. | Financial Services | 23.4K | $7.17M | 2.62% | -3,811 | -14.0% | Reduced | 0.03% |
| 12 | ON On Semiconductor Corp | Technology | 88.1K | $6.77M | 2.47% | +15.2K | +20.8% | Added | 0.02% |
| 13 | NKTR Nektar Therapeutics | Healthcare | 94.7K | $5.73M | 2.09% | +55.9K | +144.1% | Added | 0.29% |
| 14 | FLEX Flex Ltd. | Technology | 52.0K | $5.72M | 2.09% | -1,457 | -2.7% | Reduced | 0.01% |
| 15 | BILL BILL Holdings, Inc. | Technology | 124.0K | $5.27M | 1.93% | -63.8K | -34.0% | Reduced | 0.12% |
Tip. Select a row to see that position’s full history at Iridian Asset Management.
As of its Q3 2026 13F filing, Iridian Asset Management LLC’s five largest positions were ACV Auctions Inc. (ACVA) at 11.7%, Precigen, Inc. (PGEN) at 9.6%, Herbalife Ltd. (HLF) at 9.1%, Hilton Grand Vacations Inc. (HGV) at 9.0%, Post Holdings, Inc. (POST) at 7.1% of the reported portfolio.
Iridian Asset Management LLC reported a 13F portfolio worth $273.95M across 38 positions for Q3 2026. That is down 5.3% from the previous quarter.
Its largest purchases by value were Hilton Grand Vacations Inc. ($8.70M), Nektar Therapeutics ($3.38M), Post Holdings, Inc. ($3.19M). It opened 3 new positions.
Its largest sales by value were ACV Auctions Inc. ($15.70M), Precigen, Inc. ($8.28M), Lithia Motors Inc ($4.98M). It exited 2 positions entirely.
From the Form 13F-HR reports Iridian Asset Management LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.