About Magnetar
Magnetar is a venture capital firm founded in 2005. It is primarily based out of Evanston, United States. As of Apr 2026, Magnetar is an active investor, having invested in 37 companies, with 2 new investments in the last 12 months. It primarily invests in Series B round in United States based startups. Its investments are spread across a wide range of sectors from Life Sciences to Enterprise Applications and High Tech. Most recently it participated in the $***** Series B round of Turion Space Overall, Magnetar portfolio has seen 2 unicorns, 6 IPOs and 10 acquisitions including key companies like Sunnova, CoreWeave and Arcadia. A lot of funds co-invest with Magnetar, with names like Tortoise sharing a substantial percentage of its portfolio. Magnetar has team of 100 people including 13 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Series A, Post IPO & 9 more
Portfolio Acquisitions
Portfolio Soonicorns
Deals in last 12 months
Magnetar's List of Top Investments
Magnetar has a portfolio of 37 companies, including 2 unicorns. Their most notable investments are in Double Eagle Energy Holdings and Arcadia.Their portfolio spans across United States, Australia, United Kingdom and 3 more locations. They have invested in Life Sciences, Enterprise Applications, High Tech and 19 other sectors, across stages such as Series A, Post IPO and 9 more. Here is the list of top investments by Magnetar:1. Sunnova
A residential solar and energy storage provider. The company facilitates home energy production through solar panel installation and offers ongoing support. Services include system monitoring, maintenance, and energy management solutions.
Key facts about Sunnova
- Founded Year: 2010
- Location: Houston (United States)
- Annual Revenue: $840M as on Dec 31, 2024
- Stage: Public
- Total Funding till date: $1.54B
- Employee Count: 651 as on Apr 30, 2026
- Investors: Goldman Sachs, Newlight Partners and 9 Others
- Latest Funding Round: Post IPO, May 18, 2021, $*****
- Highlight: Public
2. CoreWeave
Provider of cloud computing services for artificial intelligence workloads. The company offers GPU and CPU compute, storage, and networking services. It provides a platform with tools for AI model training, inference, and development. The company delivers managed Kubernetes and Slurm on Kubernetes. It features infrastructure, lifecycle management, observability, and security.
Key facts about CoreWeave
- Founded Year: 2017
- Location: New York City (United States)
- Stage: Public
- Total Funding till date: $2.38B
- Employee Count: 2,287 as on Apr 30, 2026
- Investors: Fidelity Investments, Goldman Sachs and 36 Others
- Latest Funding Round: Post IPO, Apr 15, 2026, $*****
- Highlight: Public
3. Arcadia
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Key facts about Arcadia
- Founded Year: 2014
- Location: Washington, DC (United States)
- Valuation: $*****
- Stage: Series D
- Total Funding till date: $566M
- Employee Count: 1,290 as on Apr 30, 2026
- Investors: Wellington, ValueAct Capital and 39 Others
- Latest Funding Round: Conventional Debt, Apr 11, 2024, $*****
- Highlight: Editors' Pick
University offering academic programs and influential research contributions across various fields. It offers undergraduate college and several graduate divisions, including Biological Sciences, Humanities, Physical Sciences, and Social Sciences.
Key facts about The University of Chicago
- Founded Year: 1890
- Location: United States
- Stage: Funding Raised
- Employee Count: 6 as on Feb 29, 2024
- Investors: Magnetar, Sahsen Ventures and 10 Others
- Latest Funding Round: Grant (prize money), Dec 31, 2025, $*****
5. PosiGen
Key facts about PosiGen
- Founded Year: 2011
- Location: New York City (United States)
- Stage: Series E
- Total Funding till date: $280M
- Employee Count: 349 as on Apr 30, 2026
- Investors: Goldman Sachs, Activate Capital and 24 Others
- Latest Funding Round: Venture Debt, May 17, 2024, $*****
- Highlight: Editors' Pick
Magnetar's Year-on-Year Investment Trends
Magnetar has invested in 40 companies over the last 19 years, with an average of 3 new investments annually in the last 10 years. In 2025, it made 5 investments, while as of Apr 2026, it has made 1 investment in this year. Its most recent first time investment was in Turion Space and most recent follow-on round was in Endera.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 1 | 0 | 1 |
2025 | 4 | 1 | 5 |
2024 | 0 | 3 | 3 |
2023 | 0 | 4 | 4 |
2022 | 4 | 1 | 5 |
2021 | 5 | 0 | 5 |
2020 | 3 | 0 | 3 |
2019 | 4 | 0 | 4 |
2018 | 3 | 0 | 3 |
2017 | 2 | 0 | 2 |
Magnetar's Investments by Stage
Magnetar has made 6 investments in Series A stage with an average round size of $35.7M, 5 investments in Post IPO stage with an average round size of $445M and 5 investments in Series B stage with an average round size of $57.1M.Stage of entry | No. of Investments |
|---|---|
Series A | 6 |
Post IPO | 5 |
Series B | 5 |
Series D | 4 |
Conventional Debt | 3 |
Others | 9 |
Note: We have considered here, only first round of investments
Magnetar's Investments by Sector
Magnetar has a diverse portfolio, with companies operating in the Energy, Life Sciences, Sustainability Tech, Enterprise Applications and Energy Tech. Notably, it has invested in 26 Enterprise (B2B) companies, 21 Tech companies, 9 Tech hardware companies and at least 8 companies focusing on Software.Sector | No. of Investments |
|---|---|
Energy | 7 |
Life Sciences | 7 |
Sustainability Tech | 6 |
Enterprise Applications | 5 |
Energy Tech | 4 |
Others | 29 |
Note: We have considered here, only first round of investments
Magnetar's Investments by Geography
Magnetar has made most investments in United States (27), followed by Australia where it has made 2 investments.Country | No. of Investments |
|---|---|
United States | 27 |
Australia | 2 |
United Kingdom | 2 |
Ireland | 1 |
Note: We have considered here, only first round of investments
Magnetar's recent investments
Magnetar has made 1 investments in 2026 so far - Turion Space.Here are the most recent investments by Magnetar:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Apr 15, 2026 | United States | Series B | 6802 | ||
Sep 09, 2025 | United States | Series D | 7362 | - | |
Apr 08, 2025 | United States | Series A | 3445 | [+4] | |
Mar 18, 2025 | United States | Series A | 9118 | [+8] | |
Feb 11, 2025 | United States | Series C | 1956 | [+1] |
Unicorns in Magnetar's Portfolio
Magnetar has 2 unicorns in its portfolio - Apptronik and Arcadia. The most recent unicorn in their portfolio is Apptronik. It became a unicorn in 2025.Here is a list of unicorns in Magnetar's portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
64 | Developer of general-purpose humanoid robots for various applications and industries | 2016 | Austin | Series A | rpeibyp | ||
69 | Provider of clean energy data platform and solutions for businesses. It offers end-to-end energy management solutions, streamlining data and processes for enterprises and energy innovators. Services include utility bill management, energy procurement advisory, and sustainability reporting. The platform supports various use cases for energy service providers, such as optimizing solar and storage solutions, EV charging, energy management, and property management. It helps clients lower utility costs, achieve sustainability goals, and improve energy efficiency. | 2014 | Washington, DC | Series D | trratdw |
IPOs and Publicly Listed companies in Magnetar's Portfolio
6 of Magnetar's portfolio companies have become public. CoreWeave got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in Mar 2025 at marketcap of $14.2B and Judo Bank got listed on the Australian Securities Exchange (ASX) at marketcap of $1.74B.Here are Magnetar's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Mar 28, 2025 | Nov 10, 2021 | Series B | 6302 | |
Nov 01, 2021 | Dec 23, 2020 | Series D | 6283 | |
Jul 26, 2019 | Jan 02, 2020 | Post IPO | 9116 | |
May 05, 2017 | May 13, 2019 | Post IPO | 9451 | |
Oct 26, 2012 | May 13, 2016 | Post IPO | 5041 |
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Acquired companies in Magnetar's Portfolio
10 companies from Magnetar's portfolio have been acquired. The most recent acquisition was CB&I in Oct 2024 by Mason Capital Management for $*****.Here are Magnetar's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Oct 07, 2024 | May 07, 2018 | Post IPO | 8482 | |
Mar 10, 2024 | - | - | 7511 | |
Dec 11, 2023 | Jan 04, 2018 | Series H | 7280 | |
Oct 08, 2022 | Jun 12, 2018 | Series B | 1484 | |
Jun 16, 2022 | May 02, 2017 | PE | 5834 |
Team profile of Magnetar
Magnetar has a team of 100 members including 13 Partners and 16 Principals located in United States. Magnetar's team does not sit on the board of any company as of now.Here is a list of top team members in Magnetar:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Evanston | - | ||
Partner | Roseville | - | ||
Partner | Chicago | - | ||
Partner | - | - | ||
Partner | - | - | ||
Partner | - | - | ||
Partner | - | - | ||
Partner | - | - | ||
Partner | - | - | ||
Partner | - | - |
Co-investors of Magnetar
Over the past 19 years, 285 investors have co-invested in Magnetar's portfolio companies. This includes funds and angels.
- Invested before Magnetar: Goldman Sachs, UBS and 141 others have invested in rounds before Magnetar. There are 3 companies where Goldman Sachs has invested before Magnetar and 2 companies where UBS has invested before Magnetar.
- Top Co-investors of Magnetar: 74 investors entered a company along with Magnetar. These include investors like Tortoise (1 company).
- Invested after Magnetar: A total of 68 investors have invested in Magnetar's portfolio after their investments. Top Investors include BlackRock (2 companies), Reimagined Ventures (2 companies) and PEAK6 (2 companies).
Recent News related to Magnetar
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Turion Space Raises $75 Million to Expand Maneuverable Satellite FleetSpaceNews•Apr 15, 2026•Thewashingtonharbour, Turion Space, FoundersX Ventures, Center15 Capital and 6 others
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Magnetar Financial LLC Acquires 73,171 Shares of Clearwater Analytics Holdings, Inc. $CWANMarketBeat•Mar 13, 2026•Magnetar, Cwan
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Magnetar Financial LLC Acquires New Stake in Analog Devices, Inc. $ADIMarketBeat•Mar 13, 2026•Analog Devices, Magnetar
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Magnetar Financial LLC Acquires Shares of 17,009 Federal Signal Corporation $FSSMarketBeat•Mar 13, 2026•Federal Signal, Magnetar, Jefferies
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Magnetar Financial LLC Acquires Shares of 68,980 The Descartes Systems Group Inc. $DSGXMarketBeat•Mar 11, 2026•Magnetar, Descartes, Carrier
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