Atom Investors LP
13F filer · CIK 0001738902Reported Aug 14, 2026
Net seller this quarter
13F portfolio value$1.12BU.S. long equity reported on 13F
Positions810408 new · 238 closed
Net flow last quarter-$461MBuys minus sells
Top 10 positions weight7.4%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, 2026810 positions | |||||
| $11.2M | 1.00% | 0.06% | +560.9% | Q4 2024 | |
| $10.6M | 0.94% | 0.00% | +262.3% | Q1 2021 | |
| $9.71M | 0.86% | 0.02% | Not reported | Q3 2020 | |
| $8.16M | 0.73% | 0.11% | +28.9% | Q3 2023 | |
| $8.13M | 0.72% | 0.14% | +238.4% | Q4 2025 | |
| $7.95M | 0.71% | 0.14% | +43.7% | Q4 2025 | |
| $7.02M | 0.62% | 0.00% | -49.5% | Q4 2021 | |
| $6.82M | 0.61% | 0.00% | -51.4% | Q4 2021 | |
| $6.78M | 0.60% | 0.00% | -40.9% | Q4 2019 | |
| $6.49M | 0.58% | 0.10% | New | Q2 2026 | |
| $6.31M | 0.56% | 0.00% | Not reported | Q1 2019 | |
| $6.3M | 0.56% | 0.26% | -3.1% | Q4 2021 | |
| $6.16M | 0.55% | 0.08% | New | Q2 2026 | |
| $6.11M | 0.54% | 0.03% | +308.2% | Q3 2025 | |
| $5.96M | 0.53% | 0.01% | -52.2% | Q2 2019 | |
| $5.88M | 0.52% | 0.00% | Not reported | Q1 2019 | |
| $5.74M | 0.51% | 0.17% | +83.5% | Q1 2026 | |
| $5.67M | 0.50% | 0.05% | Not reported | Q3 2024 | |
| $5.54M | 0.49% | 0.01% | +62.5% | Q3 2021 | |
| $5.44M | 0.48% | 0.00% | +30.6% | Q4 2018 | |
| $5.41M | 0.48% | 0.03% | +244.5% | Q3 2020 | |
| $5.4M | 0.48% | 0.00% | -53.9% | Q4 2018 | |
| $5.37M | 0.48% | Not reported | -0.8% | Q4 2018 | |
| $5.2M | 0.46% | Not reported | Not reported | Q3 2022 | |
| $4.98M | 0.44% | 0.10% | Not reported | Q4 2018 | |
| $4.98M | 0.44% | 0.01% | New | Q2 2026 | |
| $4.87M | 0.43% | 0.03% | +303.2% | Q3 2021 | |
| $4.7M | 0.42% | 0.00% | Not reported | Q3 2019 | |
| $4.55M | 0.41% | 0.00% | +140.0% | Q2 2019 | |
| $4.49M | 0.40% | 0.03% | +4.8% | Q1 2026 | |
| $4.13M | 0.37% | 0.00% | Not reported | Q4 2018 | |
| $3.94M | 0.35% | 0.01% | +300.1% | Q2 2025 | |
| $3.87M | 0.34% | 0.13% | Not reported | Q2 2019 | |
| $3.87M | 0.34% | 0.00% | Not reported | Q3 2019 | |
| $3.8M | 0.34% | 0.00% | Not reported | Q4 2018 | |
| $3.8M | 0.34% | 0.42% | +6.6% | Q1 2025 | |
| $3.79M | 0.34% | 0.13% | +42.1% | Q1 2019 | |
| $3.74M | 0.33% | 0.02% | -65.7% | Q4 2018 | |
| $3.72M | 0.33% | 0.14% | +74.7% | Q2 2024 | |
| $3.67M | 0.33% | 0.00% | Not reported | Q1 2019 | |
| $3.63M | 0.32% | 0.07% | -65.5% | Q3 2025 | |
| $3.61M | 0.32% | Not reported | +941.1% | Q1 2024 | |
| $3.61M | 0.32% | 0.07% | -54.8% | Q4 2025 | |
| $3.57M | 0.32% | 0.00% | Not reported | Q2 2019 | |
| $3.55M | 0.32% | 0.18% | +4.2% | Q4 2024 | |
| $3.53M | 0.31% | 0.01% | -48.5% | Q3 2024 | |
| $3.49M | 0.31% | 1061383.33% | -45.1% | Q4 2020 | |
| $3.49M | 0.31% | 0.01% | New | Q2 2026 | |
| $3.49M | 0.31% | 0.05% | Not reported | Q4 2018 | |
| $3.47M | 0.31% | 0.03% | +73.1% | Q3 2021 | |
| Q1 2026Reported May 15, 2026639 positions | |||||
| $16.7M | 1.19% | 0.20% | -9.2% | Q4 2025 | |
| $11.7M | 0.84% | 0.01% | Not reported | Q2 2019 | |
| $11.5M | 0.82% | 0.00% | +417.9% | Q4 2021 | |
| $10.5M | 0.75% | 0.30% | +52.1% | Q1 2019 | |
| $10.2M | 0.73% | 0.00% | +225.0% | Q4 2018 | |
| $10M | 0.72% | 0.00% | +82.5% | Q4 2019 | |
| $9.84M | 0.70% | 0.13% | +66.8% | Q3 2025 | |
| $9.24M | 0.66% | 0.07% | +35.2% | Q2 2019 | |
| $9.04M | 0.65% | 0.20% | -40.8% | Q3 2025 | |
| $8.89M | 0.64% | 0.03% | +226.1% | Q3 2022 | |
| $8.87M | 0.64% | 0.06% | Not reported | Q4 2018 | |
| $8.72M | 0.62% | 0.16% | New | Q1 2026 | |
| $8.71M | 0.62% | 0.16% | -10.8% | Q4 2025 | |
| $8.68M | 0.62% | 0.22% | +59.4% | Q2 2023 | |
| $8.5M | 0.61% | 0.05% | +39.3% | Q1 2019 | |
| $8.43M | 0.60% | 0.21% | +393.6% | Q2 2019 | |
| $8.4M | 0.60% | 0.09% | +99.5% | Q2 2023 | |
| $7.76M | 0.56% | 0.22% | +53.3% | Q4 2025 | |
| $7.74M | 0.55% | 0.15% | +69.4% | Q1 2019 | |
| $7.67M | 0.55% | 0.04% | Not reported | Q3 2020 | |
| $7.55M | 0.54% | 0.01% | Not reported | Q3 2020 | |
| $7.49M | 0.54% | 0.02% | Not reported | Q1 2019 | |
| $7.38M | 0.53% | 0.02% | +43.9% | Q1 2020 | |
| $7.35M | 0.53% | 0.00% | Not reported | Q3 2022 | |
| $7.31M | 0.52% | Not reported | +35.3% | Q2 2019 | |
| $7.3M | 0.52% | 0.05% | +37.8% | Q1 2019 | |
| $7.3M | 0.52% | 0.07% | Not reported | Q1 2024 | |
| $7.27M | 0.52% | 0.31% | -8.1% | Q3 2023 | |
| $7.1M | 0.51% | 1.15% | +106.2% | Q1 2023 | |
| $7.08M | 0.51% | 0.03% | Not reported | Q2 2022 | |
| $6.95M | 0.50% | 0.03% | +1977.7% | Q1 2019 | |
| $6.93M | 0.50% | 0.13% | +53.4% | Q1 2019 | |
| $6.86M | 0.49% | 0.02% | Not reported | Q3 2024 | |
| $6.83M | 0.49% | 0.08% | +28.6% | Q4 2022 | |
| $6.76M | 0.48% | 0.02% | +90.6% | Q4 2018 | |
| $6.71M | 0.48% | 0.00% | Not reported | Q3 2020 | |
| $6.71M | 0.48% | 0.27% | +74.6% | Q4 2021 | |
| $6.68M | 0.48% | 0.03% | Not reported | Q4 2018 | |
| $6.65M | 0.48% | 0.16% | Not reported | Q4 2018 | |
| $6.58M | 0.47% | 0.00% | +177.5% | Q4 2021 | |
| $6.48M | 0.46% | 0.15% | +57.0% | Q4 2018 | |
| $6.41M | 0.46% | 0.48% | +293.4% | Q4 2018 | |
| $6.38M | 0.46% | Not reported | +72.8% | Q4 2025 | |
| $6.37M | 0.46% | 0.01% | -43.9% | Q4 2020 | |
| $6.34M | 0.45% | 0.00% | +907.2% | Q2 2019 | |
| $6.32M | 0.45% | 0.01% | -40.3% | Q2 2019 | |
| CPCNTACentessa Pharmaceuticals PLC | $6.3M | 0.45% | 0.10% | +764.0% | Q4 2024 |
| $6.19M | 0.44% | Not reported | +73.7% | Q4 2025 | |
| $6.1M | 0.44% | 0.17% | -18.1% | Q4 2024 | |
| $6.1M | 0.44% | 0.00% | +617.1% | Q1 2020 | |
| Q4 2025Reported Feb 17, 2026539 positions | |||||
| $20.7M | 1.64% | 0.23% | New | Q4 2025 | |
| $15.7M | 1.24% | 0.28% | +1732.3% | Q3 2025 | |
| $14.7M | 1.17% | 0.02% | +267.4% | Q4 2020 | |
| $14M | 1.11% | 0.01% | +75.0% | Q4 2018 | |
| $12M | 0.95% | Not reported | Not reported | Q3 2020 | |
| $10.5M | 0.83% | 0.28% | +116.5% | Q2 2024 | |
| $10.2M | 0.81% | 0.58% | New | Q4 2025 | |
| $10.2M | 0.81% | 0.07% | New | Q4 2025 | |
| $9.85M | 0.78% | 0.01% | +32.8% | Q4 2018 | |
| $9.75M | 0.77% | 0.56% | +257.4% | Q1 2025 | |
| $9.48M | 0.75% | Not reported | Not reported | Q3 2020 | |
| $9.35M | 0.74% | 0.39% | +53.4% | Q1 2024 | |
| $9.35M | 0.74% | 0.01% | +138.3% | Q2 2019 | |
| $9.32M | 0.74% | 0.80% | Not reported | Q4 2024 | |
| $8.74M | 0.69% | 0.18% | -13.1% | Q4 2018 | |
| $8.66M | 0.69% | 0.11% | New | Q4 2025 | |
| $8.62M | 0.68% | 0.01% | +282.1% | Q4 2018 | |
| $8.54M | 0.68% | 0.18% | New | Q4 2025 | |
| $8.47M | 0.67% | 0.30% | +2254.7% | Q3 2025 | |
| $8.25M | 0.66% | 0.06% | -12.4% | Q2 2020 | |
| $8.16M | 0.65% | 0.10% | +56.1% | Q4 2018 | |
| $8.12M | 0.64% | 0.08% | +110.1% | Q4 2018 | |
| $8.11M | 0.64% | 0.30% | Not reported | Q4 2018 | |
| $7.89M | 0.63% | 0.26% | -18.7% | Q2 2019 | |
| $7.49M | 0.60% | 0.42% | +198.0% | Q3 2025 | |
| $7.48M | 0.59% | 0.14% | Not reported | Q2 2023 | |
| $7.41M | 0.59% | 0.01% | +41.6% | Q1 2019 | |
| $7.27M | 0.58% | 0.20% | Not reported | Q4 2024 | |
| $7.27M | 0.58% | 0.06% | Not reported | Q4 2018 | |
| $7.24M | 0.58% | 0.07% | Not reported | Q2 2020 | |
| $7.03M | 0.56% | 0.01% | +9.0% | Q4 2020 | |
| $6.68M | 0.53% | 6.51% | New | Q4 2025 | |
| $6.65M | 0.53% | 0.20% | Not reported | Q1 2019 | |
| $6.56M | 0.52% | 0.04% | Not reported | Q3 2024 | |
| $6.55M | 0.52% | 0.05% | -38.0% | Q2 2019 | |
| $6.45M | 0.51% | 0.27% | -10.4% | Q3 2022 | |
| $6.45M | 0.51% | 0.03% | +63.1% | Q3 2023 | |
| $6.26M | 0.50% | 0.14% | Not reported | Q4 2018 | |
| $6.22M | 0.49% | 0.07% | +1014.6% | Q4 2018 | |
| $6.18M | 0.49% | 0.17% | +293.4% | Q3 2025 | |
| $6.13M | 0.49% | 0.02% | New | Q4 2025 | |
| $6.07M | 0.48% | 0.08% | +4.2% | Q3 2025 | |
| $5.9M | 0.47% | 0.25% | +98.7% | Q1 2019 | |
| $5.86M | 0.47% | 0.00% | +51.4% | Q4 2019 | |
| $5.82M | 0.46% | 0.39% | New | Q4 2025 | |
| $5.8M | 0.46% | 0.34% | Not reported | Q3 2023 | |
| $5.74M | 0.46% | 0.06% | +50.5% | Q4 2018 | |
| $5.56M | 0.44% | 0.04% | +18.9% | Q1 2019 | |
| $5.55M | 0.44% | 0.01% | Not reported | Q4 2022 | |
| $5.53M | 0.44% | 0.03% | Not reported | Q1 2019 | |
| Q3 2025Reported Nov 14, 2025550 positions | |||||
| $67.3M | 5.10% | Not reported | +659.2% | Q1 2020 | |
| $15.8M | 1.20% | Not reported | Not reported | Q4 2020 | |
| $10.9M | 0.82% | 0.08% | +29.9% | Q2 2019 | |
| OBOLLIOllie's Bargain Outlet Holdings, Inc. | $10.4M | 0.79% | 0.13% | +265.5% | Q2 2025 |
| $10.3M | 0.78% | 0.02% | -12.6% | Q2 2023 | |
| VEVNOMViper Energy, Inc. | $10.2M | 0.77% | Not reported | Not reported | Q1 2020 |
| $10.1M | 0.76% | 0.01% | +1931.8% | Q4 2018 | |
| $9.75M | 0.74% | 0.14% | Not reported | Q3 2019 | |
| $9.2M | 0.70% | 0.28% | Not reported | Q4 2018 | |
| $8.81M | 0.67% | 0.05% | Not reported | Q1 2019 | |
| $8.78M | 0.67% | 0.02% | -3.9% | Q4 2022 | |
| $8.74M | 0.66% | 0.04% | +109.3% | Q1 2019 | |
| $8.57M | 0.65% | 0.21% | -22.4% | Q4 2018 | |
| $8.46M | 0.64% | 0.13% | +32.1% | Q4 2020 | |
| $8.39M | 0.64% | Not reported | +336.6% | Q4 2018 | |
| $8.34M | 0.63% | 0.25% | -5.9% | Q3 2020 | |
| $8.23M | 0.62% | 0.32% | +859.5% | Q2 2019 | |
| $7.93M | 0.60% | 0.01% | Not reported | Q4 2018 | |
| $7.78M | 0.59% | 0.37% | +7.4% | Q3 2022 | |
| $7.45M | 0.56% | 0.24% | +58.0% | Q4 2024 | |
| $7.32M | 0.56% | 0.40% | Not reported | Q2 2023 | |
| $7.29M | 0.55% | 0.21% | -0.7% | Q3 2020 | |
| $7.16M | 0.54% | 0.00% | -45.6% | Q4 2018 | |
| $6.94M | 0.53% | 0.00% | +2079.8% | Q2 2020 | |
| $6.88M | 0.52% | Not reported | +646.4% | Q2 2019 | |
| $6.86M | 0.52% | 0.00% | +602.6% | Q2 2019 | |
| $6.79M | 0.51% | 0.29% | +82.0% | Q4 2024 | |
| $6.74M | 0.51% | 0.09% | +52.3% | Q4 2023 | |
| $6.72M | 0.51% | 0.01% | -35.5% | Q1 2019 | |
| $6.65M | 0.50% | 0.02% | +294.0% | Q2 2023 | |
| $6.65M | 0.50% | 0.03% | +72.9% | Q2 2022 | |
| $6.48M | 0.49% | 0.01% | +97.0% | Q4 2020 | |
| $6.46M | 0.49% | 0.02% | +38.3% | Q4 2018 | |
| $6.42M | 0.49% | 0.10% | Not reported | Q2 2020 | |
| $6.39M | 0.48% | 0.02% | +24.7% | Q1 2020 | |
| $6.38M | 0.48% | Not reported | +125.2% | Q3 2021 | |
| $6.14M | 0.47% | 0.11% | Not reported | Q3 2021 | |
| $6.11M | 0.46% | 0.06% | Not reported | Q4 2018 | |
| $6.02M | 0.46% | 0.10% | +149.9% | Q2 2019 | |
| $5.99M | 0.45% | 0.03% | Not reported | Q1 2019 | |
| TBLDTopBuild Corp | $5.89M | 0.45% | 0.05% | +1615.4% | Q2 2019 |
| $5.89M | 0.45% | 0.08% | New | Q3 2025 | |
| $5.83M | 0.44% | 0.07% | +36.1% | Q2 2020 | |
| $5.82M | 0.44% | 0.62% | -8.1% | Q2 2019 | |
| $5.65M | 0.43% | 0.16% | +191.0% | Q2 2024 | |
| $5.62M | 0.43% | 4.66% | Not reported | Q4 2018 | |
| $5.59M | 0.42% | 0.25% | -18.0% | Q1 2024 | |
| $5.54M | 0.42% | 0.03% | +1360.1% | Q4 2022 | |
| $5.48M | 0.42% | 0.06% | +39.6% | Q3 2023 | |
| $5.44M | 0.41% | 1397041.67% | +10.0% | Q4 2020 | |
Premium opens every quarter this fund has filed