Magnetar Capital
Magnetar Capital is an alternative asset manager that invests in credit, quantitative, venture and event-driven strategies. In 2024 it launched a ventures business focused on AI and technology companies, and a fund giving companies access to computing power through CoreWeave.
PrivateEvanston, Illinois, United StatesMoneyAssets under management, 2025 $18.6B (as of Feb 2025)
Exposure ≈$50M: $50M funded, $0 committed, $0 contingent (a maximum, not an expected loss).
Money
Invests in CoreWeave · $50M
Magnetar invested in a 2021 convertible note, then led the 2023 Series B and joined later rounds, and became CoreWeave's largest equity holder.
Blackstone invests in Magnetar Capital
Blackstone Alternative Asset Management bought a minority stake in Magnetar in 2015. Financial terms were not disclosed.