
Magnetar Capital is a multi-strategy alternative asset management firm founded in 2005 and headquartered in Evanston, Illinois. Its Ventures arm partners with early- to growth-stage companies, with a particular focus on AI and industry-transforming technologies.
42% of their portfolio is in AI. Average disclosed round size is $623.2M (across 15 rounds with reported amounts).
Portfolio
12
Fund Size
$235M
Top Stage
Series C
Last 12 Mo
2
Team
Devin Dallaire
Head of Products, Quantitative Investing, Partner
Ross Laser
Co-Founder and President
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
19 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Unknown | — | Feb 2026 | |
| Growth | — | Sep 2025 | |
| EEndera Corp. | Unknown | — | Feb 2025 |
| Unknown | $49M | Feb 2025 | |
| Growth | $1.1B | May 2024 | |
| Series C | $1.1B | May 2024 | |
| Growth | $2.3B | Aug 2023 | |
| Series B | $221M | Apr 2023 | |
| Series C | $100M | Dec 2022 | |
| Series C | $215M | Jan 2022 | |
| EEnable Injections Llc | Unknown | $215M | Jan 2022 |
| Series B | $50M | Nov 2021 | |
| Series B | $45M | Sep 2021 | |
| Series C | $40.6M | Jan 2021 | |
| Growth | $2B | — | |
| Series B | — | — | |
| Series C | $112M | — | |
| Series A | $100M | — | |
| Unknown | $1.7B | — |
Top Co-Investors
Coatue Management LLC4 shared
Altimeter Capital Management, LP4 shared
Fidelity Investments4 shared
NVentures3 shared
Lykos Global Management3 shared
The Goldman Sachs Group, Inc.2 shared
Investment Management Corporation of Ontario2 shared
Citi Ventures2 shared
JPMorgan Chase & Co.2 shared
Jane Street Capital2 shared
Wells Fargo2 shared
The Carlyle Group2 shared
Barclays2 shared
Pulse Fund2 shared
CincyTech2 shared
GCM Grosvenor2 shared
Ohio Innovation Fund2 shared
Squarepoint Capital2 shared
PICO Venture Partners1 shared
Last updated: 8 September 2026