Ikarian Capital, LLC
13F filer · CIK 0001778253Reported Aug 14, 2026
Net seller this quarter
13F portfolio value$928MU.S. long equity reported on 13F
Positions12526 new · 27 closed
Net flow last quarter-$162MBuys minus sells
Top 10 positions weight26.0%Concentration
Holdings
13F · last 4 quarters freeScroll for earlier quarters
| Company | Value | % of portfolio | % of company | POSITION CHANGE qoq % | First reported |
|---|---|---|---|---|---|
| Q2 2026Reported Aug 14, 2026125 positions | |||||
| $43.4M | 4.67% | 0.42% | +470.2% | Q3 2025 | |
| $41.3M | 4.45% | 1.69% | -16.3% | Q1 2022 | |
| $24.5M | 2.64% | Not reported | -28.3% | Q1 2026 | |
| $24.4M | 2.63% | 0.26% | +1.8% | Q4 2020 | |
| $22.6M | 2.43% | 0.27% | -9.3% | Q2 2020 | |
| $22.5M | 2.43% | 1.21% | +85.0% | Q1 2026 | |
| $17.8M | 1.92% | 0.61% | +3.7% | Q2 2020 | |
| $15.6M | 1.68% | 0.40% | Not reported | Q4 2022 | |
| $14.9M | 1.60% | 2.01% | -20.1% | Q1 2020 | |
| $14.5M | 1.57% | 1.04% | +14.4% | Q3 2024 | |
| $14.3M | 1.54% | 0.22% | Not reported | Q4 2020 | |
| $13.3M | 1.43% | 0.43% | +55.0% | Q2 2025 | |
| $13.2M | 1.43% | 3.50% | Not reported | Q4 2025 | |
| $11.5M | 1.23% | 2.47% | -22.6% | Q3 2025 | |
| $11.4M | 1.22% | 1.98% | Not reported | Q4 2020 | |
| $11.3M | 1.22% | 0.68% | Not reported | Q1 2025 | |
| $11.1M | 1.20% | 0.50% | +81.4% | Q4 2019 | |
| $10.8M | 1.16% | 7.21% | -15.8% | Q4 2021 | |
| $10.7M | 1.16% | 1.16% | -20.9% | Q4 2024 | |
| $10.7M | 1.15% | 0.47% | -36.6% | Q3 2025 | |
| $9.5M | 1.02% | 0.67% | -16.6% | Q4 2025 | |
| $8.73M | 0.94% | 0.54% | Not reported | Q4 2025 | |
| $7.81M | 0.84% | 0.38% | Not reported | Q3 2024 | |
| $7.25M | 0.78% | 6.90% | Not reported | Q3 2025 | |
| $7.19M | 0.77% | 1.28% | +2.1% | Q3 2025 | |
| $7.08M | 0.76% | 1.07% | +30.7% | Q2 2024 | |
| $6.55M | 0.71% | 4.41% | Not reported | Q4 2024 | |
| $6.53M | 0.70% | Not reported | New | Q2 2026 | |
| $6.42M | 0.69% | 0.17% | Not reported | Q2 2024 | |
| $6.37M | 0.69% | 3.25% | +129.6% | Q4 2022 | |
| $6.24M | 0.67% | 1.16% | -46.6% | Q4 2021 | |
| $6.11M | 0.66% | 1.23% | -21.6% | Q4 2019 | |
| $6.06M | 0.65% | 1.17% | Not reported | Q1 2026 | |
| $6.04M | 0.65% | 3.84% | -20.8% | Q4 2024 | |
| $5.77M | 0.62% | 0.36% | -75.0% | Q3 2020 | |
| $5.58M | 0.60% | 0.05% | New | Q2 2026 | |
| $5.53M | 0.60% | 0.17% | -65.7% | Q4 2019 | |
| $5.48M | 0.59% | 1.81% | Not reported | Q1 2024 | |
| $5.35M | 0.58% | 1.56% | -33.3% | Q4 2025 | |
| $4.9M | 0.53% | 0.44% | New | Q2 2026 | |
| $4.86M | 0.52% | 0.97% | +5574.0% | Q2 2024 | |
| $4.79M | 0.52% | 0.44% | -35.9% | Q3 2024 | |
| $4.43M | 0.48% | 0.71% | Not reported | Q4 2024 | |
| $4.28M | 0.46% | 0.03% | -64.1% | Q1 2020 | |
| $4.15M | 0.45% | 0.58% | -21.0% | Q3 2020 | |
| $4.1M | 0.44% | 0.23% | New | Q2 2026 | |
| $3.99M | 0.43% | 1.78% | -4.8% | Q3 2020 | |
| $3.91M | 0.42% | 0.52% | Not reported | Q2 2024 | |
| $3.84M | 0.41% | 1.38% | Not reported | Q4 2020 | |
| $3.52M | 0.38% | 3.32% | +22.0% | Q1 2026 | |
| Q1 2026Reported May 15, 2026126 positions | |||||
| TPTERNTerns Pharmaceuticals, Inc. | $76.8M | 6.23% | 1.26% | -8.8% | Q2 2022 |
| $48.3M | 3.92% | 2.04% | +75.9% | Q1 2022 | |
| $26.7M | 2.17% | Not reported | New | Q1 2026 | |
| $24.9M | 2.02% | 0.30% | +13.2% | Q2 2020 | |
| $23.1M | 1.87% | 0.26% | -17.3% | Q4 2020 | |
| $19.1M | 1.55% | 1.46% | +196.2% | Q3 2020 | |
| $18.7M | 1.52% | 2.56% | -12.4% | Q1 2020 | |
| $18.7M | 1.52% | 0.23% | +64.2% | Q3 2020 | |
| $16.3M | 1.32% | 4.19% | +5.2% | Q3 2025 | |
| $16.1M | 1.30% | 0.92% | -8.7% | Q3 2024 | |
| $15.9M | 1.29% | 0.08% | +18.1% | Q4 2025 | |
| $14.6M | 1.19% | 0.69% | Not reported | Q2 2020 | |
| $13.8M | 1.12% | 0.75% | Not reported | Q3 2025 | |
| $13.1M | 1.07% | 8.59% | +12.5% | Q4 2021 | |
| $12.2M | 0.99% | 2.18% | +4.5% | Q4 2021 | |
| $11.9M | 0.97% | 0.08% | Not reported | Q1 2020 | |
| $11.9M | 0.96% | 0.48% | Not reported | Q1 2025 | |
| $11.6M | 0.94% | 1.47% | Not reported | Q4 2024 | |
| STSLNOSoleno Therapeutics Inc | $11.5M | 0.94% | 0.67% | +400.0% | Q2 2020 |
| $11.3M | 0.92% | 0.76% | -41.2% | Q1 2025 | |
| $11.3M | 0.92% | 0.65% | New | Q1 2026 | |
| $10.6M | 0.86% | 3.50% | +185.6% | Q4 2025 | |
| $10.1M | 0.82% | 0.49% | +3708.5% | Q4 2019 | |
| $9.54M | 0.77% | 0.08% | -37.1% | Q3 2025 | |
| $8.92M | 0.72% | 0.69% | -21.1% | Q3 2024 | |
| $8.79M | 0.71% | 2.34% | +99.1% | Q4 2025 | |
| $8.69M | 0.71% | 0.56% | +17.5% | Q4 2025 | |
| $8.06M | 0.65% | 0.45% | Not reported | Q3 2025 | |
| $8.05M | 0.65% | 1.58% | -23.7% | Q4 2020 | |
| $8.05M | 0.65% | 0.31% | Not reported | Q2 2025 | |
| $7.93M | 0.64% | 8.84% | Not reported | Q4 2024 | |
| $7.84M | 0.64% | 0.74% | +184.3% | Q3 2020 | |
| $7.2M | 0.58% | 1.04% | +70.8% | Q4 2025 | |
| $7.17M | 0.58% | 1.17% | New | Q1 2026 | |
| $7.1M | 0.58% | 1.26% | +48.8% | Q3 2025 | |
| $6.43M | 0.52% | 1.73% | +1069.3% | Q4 2019 | |
| $6.23M | 0.51% | 0.07% | -72.0% | Q3 2025 | |
| $6.02M | 0.49% | 0.00% | -52.6% | Q1 2021 | |
| $5.8M | 0.47% | 4.85% | Not reported | Q4 2024 | |
| $5.39M | 0.44% | 7.61% | +0.3% | Q3 2025 | |
| $5.04M | 0.41% | 1.51% | +163.1% | Q4 2025 | |
| $4.87M | 0.40% | 0.84% | Not reported | Q2 2024 | |
| $4.48M | 0.36% | 1.88% | Not reported | Q3 2020 | |
| $4.1M | 0.33% | 0.06% | Not reported | Q2 2020 | |
| $4.09M | 0.33% | 3.25% | +34.7% | Q1 2020 | |
| $4.06M | 0.33% | 6.80% | +154.9% | Q4 2025 | |
| $4M | 0.32% | 1.25% | Not reported | Q2 2020 | |
| $3.8M | 0.31% | 0.56% | Not reported | Q4 2020 | |
| $3.73M | 0.30% | 0.50% | +68.8% | Q3 2020 | |
| $3.68M | 0.30% | 2.72% | New | Q1 2026 | |
| Q4 2025Reported Feb 18, 2026134 positions | |||||
| TPTERNTerns Pharmaceuticals, Inc. | $64.5M | 5.04% | 1.42% | +872.2% | Q2 2022 |
| CTCDTXCidara Therapeutics, Inc. | $60.4M | 4.71% | 0.87% | -1.6% | Q4 2024 |
| $29.1M | 2.27% | 0.26% | -48.0% | Q3 2025 | |
| $27.3M | 2.13% | 0.26% | +106.1% | Q2 2025 | |
| $26.7M | 2.09% | 1.31% | -13.0% | Q1 2025 | |
| $25.5M | 1.99% | 0.34% | +203.0% | Q4 2020 | |
| RTRAPTRAPT Therapeutics, Inc. | $22.5M | 1.76% | 2.40% | +8.2% | Q1 2024 |
| $20.1M | 1.57% | 1.17% | +73.9% | Q1 2022 | |
| $19M | 1.48% | 0.93% | Not reported | Q3 2024 | |
| $17.5M | 1.36% | 0.29% | +21.5% | Q2 2020 | |
| $16.7M | 1.30% | 1.01% | +118.4% | Q3 2024 | |
| $16M | 1.25% | 0.12% | -51.3% | Q3 2025 | |
| $15.6M | 1.21% | 2.07% | +6.7% | Q4 2020 | |
| $14.8M | 1.16% | 0.00% | Not reported | Q1 2021 | |
| $14.8M | 1.16% | 4.18% | +66.5% | Q1 2020 | |
| $14.7M | 1.15% | 0.01% | Not reported | Q1 2022 | |
| $13.5M | 1.06% | 1.86% | -5.9% | Q2 2024 | |
| $13.5M | 1.05% | 0.75% | +131.7% | Q3 2025 | |
| $13.5M | 1.05% | 8.48% | Not reported | Q4 2021 | |
| $12.4M | 0.97% | 2.09% | +933.1% | Q4 2021 | |
| $11.8M | 0.92% | 10.39% | Not reported | Q3 2025 | |
| $11M | 0.86% | 0.07% | New | Q4 2025 | |
| $11M | 0.86% | 0.14% | -22.5% | Q3 2020 | |
| $10.6M | 0.83% | 8.84% | +810.3% | Q4 2024 | |
| $10.5M | 0.82% | 0.22% | New | Q4 2025 | |
| $9.17M | 0.72% | 1.61% | +368.2% | Q4 2024 | |
| $9.01M | 0.70% | 0.15% | -57.7% | Q3 2023 | |
| $8.98M | 0.70% | 0.49% | Not reported | Q3 2020 | |
| VBVTYXVentyx Biosciences, Inc. | $8.66M | 0.68% | 1.34% | -26.8% | Q1 2023 |
| $8.28M | 0.65% | 0.25% | -20.0% | Q2 2025 | |
| FBFBRXForte Biosciences, Inc. | $8.18M | 0.64% | 2.32% | Not reported | Q4 2024 |
| $7.93M | 0.62% | 7.91% | +309.5% | Q3 2025 | |
| $7.67M | 0.60% | 0.05% | Not reported | Q2 2022 | |
| $7.26M | 0.57% | 0.25% | Not reported | Q3 2024 | |
| $6.87M | 0.54% | 4.86% | +11.6% | Q4 2024 | |
| $6.57M | 0.51% | 17.89% | New | Q4 2025 | |
| $6.56M | 0.51% | 0.94% | +27.8% | Q3 2025 | |
| $6.46M | 0.50% | 0.18% | New | Q4 2025 | |
| NNUVLNuvalent, Inc. | $5.99M | 0.47% | 1.90% | Not reported | Q2 2023 |
| $5.09M | 0.40% | 0.70% | -9.6% | Q3 2024 | |
| $4.93M | 0.39% | 0.06% | Not reported | Q2 2020 | |
| $4.63M | 0.36% | 0.61% | New | Q4 2025 | |
| $4.61M | 0.36% | 1.17% | New | Q4 2025 | |
| $4.36M | 0.34% | 1.24% | Not reported | Q2 2020 | |
| $4.3M | 0.34% | 0.45% | Not reported | Q4 2021 | |
| $4.28M | 0.33% | 0.10% | +46.9% | Q1 2020 | |
| $4.25M | 0.33% | 0.56% | +58.3% | Q4 2020 | |
| $4.2M | 0.33% | 1.09% | -62.4% | Q3 2025 | |
| $4.01M | 0.31% | 2.97% | +1897.9% | Q1 2020 | |
| $3.65M | 0.29% | 0.05% | -39.3% | Q3 2025 | |
| Q3 2025Reported Nov 14, 2025115 positions | |||||
| $53M | 5.35% | Not reported | New | Q3 2025 | |
| $33.4M | 3.37% | 0.63% | New | Q3 2025 | |
| $27.2M | 2.74% | 0.26% | New | Q3 2025 | |
| CTCDTXCidara Therapeutics, Inc. | $26.6M | 2.69% | 0.95% | -40.2% | Q4 2024 |
| $19.2M | 1.94% | 1.54% | +182.0% | Q1 2025 | |
| $17.2M | 1.74% | 0.35% | Not reported | Q3 2023 | |
| RTRAPTRAPT Therapeutics, Inc. | $15.9M | 1.60% | 3.72% | Not reported | Q1 2024 |
| $13.6M | 1.37% | 0.81% | New | Q3 2025 | |
| $12.2M | 1.24% | 0.19% | -4.6% | Q3 2020 | |
| $11.9M | 1.20% | 2.38% | +200.9% | Q4 2020 | |
| $11.2M | 1.13% | 0.24% | +2.2% | Q2 2020 | |
| $10.8M | 1.09% | 2.05% | Not reported | Q2 2024 | |
| $10.3M | 1.04% | 0.13% | +94.5% | Q2 2025 | |
| APAPLSApellis Pharmaceuticals, Inc. | $10.2M | 1.03% | 0.36% | +502.5% | Q4 2019 |
| $10M | 1.01% | 0.32% | +61.0% | Q2 2025 | |
| ATAKROAkero Therapeutics, Inc. | $9.82M | 0.99% | 0.26% | -6.0% | Q1 2023 |
| $9.23M | 0.93% | 3.28% | New | Q3 2025 | |
| $7.36M | 0.74% | 16.38% | New | Q3 2025 | |
| $6.77M | 0.68% | 0.78% | -31.0% | Q1 2022 | |
| $6.32M | 0.64% | 0.11% | -16.7% | Q4 2019 | |
| $6.16M | 0.62% | 5.82% | +3.1% | Q4 2024 | |
| CPCRNXCrinetics Pharmaceuticals, Inc. | $5.45M | 0.55% | 0.14% | -69.8% | Q3 2020 |
| $5.3M | 0.53% | 0.30% | -47.8% | Q3 2024 | |
| $5.24M | 0.53% | 0.39% | New | Q3 2025 | |
| $5.13M | 0.52% | 0.38% | Not reported | Q2 2020 | |
| $5.1M | 0.51% | 0.22% | New | Q3 2025 | |
| $4.64M | 0.47% | 1.22% | +33.8% | Q2 2020 | |
| $4.57M | 0.46% | 0.09% | -10.8% | Q3 2023 | |
| $4.56M | 0.46% | 0.21% | Not reported | Q4 2024 | |
| FBFBRXForte Biosciences, Inc. | $4.5M | 0.45% | 2.40% | -37.0% | Q4 2024 |
| $4.38M | 0.44% | 0.17% | -62.5% | Q3 2023 | |
| $4.31M | 0.44% | 0.08% | New | Q3 2025 | |
| $4.3M | 0.43% | 0.01% | Not reported | Q1 2020 | |
| VBVTYXVentyx Biosciences, Inc. | $4.07M | 0.41% | 1.84% | +35.4% | Q1 2023 |
| $4.06M | 0.41% | 0.58% | New | Q3 2025 | |
| STSLNOSoleno Therapeutics Inc | $3.78M | 0.38% | 0.10% | Not reported | Q2 2020 |
| $3.77M | 0.38% | 1.03% | +3.2% | Q3 2024 | |
| $3.7M | 0.37% | 5.55% | +4476.8% | Q1 2020 | |
| $3.42M | 0.35% | 0.09% | -51.2% | Q3 2023 | |
| $3.39M | 0.34% | 0.43% | -44.4% | Q4 2024 | |
| $3.12M | 0.32% | 0.83% | New | Q3 2025 | |
| $3.04M | 0.31% | 0.09% | -48.4% | Q2 2025 | |
| $3.03M | 0.31% | 0.30% | New | Q3 2025 | |
| $2.86M | 0.29% | 1.36% | New | Q3 2025 | |
| $2.84M | 0.29% | 0.31% | New | Q3 2025 | |
| $2.7M | 0.27% | 0.03% | Not reported | Q1 2020 | |
| $2.48M | 0.25% | 1.63% | +257.3% | Q1 2025 | |
| $2.47M | 0.25% | 1.32% | -17.6% | Q1 2025 | |
| $2.44M | 0.25% | 0.27% | -37.1% | Q3 2024 | |
| $2.34M | 0.24% | 0.07% | Not reported | Q1 2020 | |
Premium opens every quarter this fund has filed