CoreWeave's Institutional Holdings Reach $39.7 Billion, With Ownership at 75.8%

CoreWeave, an AI cloud provider, has seen its total institutional investment climb to approximately $39.7 billion, according to 13F filings for the quarter ending June 30, 2026. The number of institutional holders has grown to 1,125, representing a reported 75.8% of the company’s ownership. These figures highlight CoreWeave’s significant backing within the AI infrastructure sector.

Figures from these 13F filings indicate CoreWeave’s market capitalization was between $45 billion and $50 billion, with its stock trading in the range of $80 to $90 per share during the reporting period. Among the notable institutional investors, Magnetar Financial LLC holds approximately 9.45% to 9.88% of CoreWeave’s shares, valued at around $5.2 billion. Nvidia Corp, a critical supplier of GPUs for AI computing, is also a significant shareholder, holding between 8.57% and 8.96% of the company’s shares, worth approximately $4.7 billion.

CoreWeave’s current market position is the result of a strategic pivot. Founded in 2017 as Atlantic Crypto, an Ethereum mining operation, the company transitioned to providing high-performance computing for artificial intelligence. This shift allows it to rent GPU capacity to companies requiring substantial compute power for training and running AI models. The company debuted on March 28, 2025, and reported revenue of approximately $5.13 billion for its fiscal year 2025.

The high level of institutional ownership, involving over 1,100 entities, suggests investor confidence in CoreWeave’s business model and its role in the AI sector. However, this concentration of ownership also presents potential risks. Depending on how the data is tallied, institutional ownership is reported between 72.5% and 75.8%, and the number of reporting institutions can vary. A shift in sentiment among a few large holders could potentially lead to rapid fluctuations in the company’s share price.

Nvidia’s dual role as both a key supplier and a major shareholder introduces a complex dynamic. While this relationship could offer strategic advantages, such as ensuring access to scarce GPUs, it also ties CoreWeave’s fortunes closely to a single vendor. Investors are likely to monitor changes in Nvidia’s stake in future filings.

Looking ahead, CoreWeave is expanding its global footprint. In October 2026, the company announced a partnership with AdaniConneX to construct a 240 MW AI data center in Navi Mumbai, India. Initial operations for this facility are slated to begin in mid-2028, a timeline considered substantial within the rapidly evolving AI infrastructure landscape.

CoreWeave’s evolution from a cryptocurrency mining operation to a prominent AI infrastructure provider, backed by substantial institutional investment, highlights its adaptability and success in repurposing hardware for emerging technological demands. The company’s growth and market position are closely watched by investors and industry observers alike.

Why This Matters

The materials document an update: The number of institutional holders of CoreWeave stock increased to 1,125, with total institutional ownership reaching 75.8%. The exact number of reporting institutions varies between 1,125 and over 1,155 depending on the count.

Broader Context

Source materials place the factual news in this context: CoreWeave was founded in 2017 as Atlantic Crypto, an Ethereum mining operation.