Magnetar Capital's venture investment focus is on early-to-growth stage generative AI startups, particularly those advancing AI models, infrastructure, and applications. Their strategy involves offering portfolio companies access to high-performance computing (GPU) resources through a partnership with CoreWeave, often in exchange for equity, rather than solely providing cash.
62% of their portfolio is in AI. Deal activity decreased year-over-year (2 deals in the last 12 months vs 3 prior). Average disclosed round size is $1127.0M (across 13 rounds with reported amounts).
Portfolio
13
Fund Size
$22B
Top Stage
Series B
Last 12 Mo
2
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
13 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 inKind | Unknown | $450M | Feb 2026 |
 Torus Inc. | Growth | $200M | Sep 2025 |
| EEndera Corp. | Unknown | $49M | Feb 2025 |
 CoreWeave | Growth | $7.5B | May 2024 |
| CoreWeave | Series C | $1.1B | May 2024 |
| CoreWeave | Growth | $2.3B | Aug 2023 |
| CoreWeave | Series B | $221M | Apr 2023 |
| CoreWeave | Series C | $100M | Dec 2022 |
 Enable Injections, Inc. | Series C | $215M | Jan 2022 |
| CoreWeave | Series B | $50M | Nov 2021 |
 Activ Surgical | Series B | $45M | Sep 2021 |
| CoreWeave | Growth | $2B | — |
| CoreWeave | Series B | $421M | — |
Top Co-Investors
Coatue Management4 shared
Nvidia3 shared
BlackRock2 shared
The Carlyle Group2 shared
Altimeter Capital2 shared
Lykos Global Management2 shared
Jane Street Capital2 shared
Cota Capital1 shared
GCM Grosvenor1 shared
Squarepoint Capital1 shared
Ohio Innovation Fund1 shared
CDPQ1 shared
Eldridge Industries1 shared
Fidelity Investments1 shared
Goldman Sachs1 shared
Barclays1 shared
Citi Ventures1 shared
Last updated: 15 April 2026