Weave's institutional shareholder base has continued to expand. According to the latest round of 13F filings, the number of institutions holding shares of the AI cloud provider rose to 1,125, lifting institutional ownership to 75.8% and bringing total institutional investment to $39.7 billion.

Wall Street now owns roughly three out of every four CoreWeave shares — a notable figure for a company that began life as an Ethereum mining operation.

Ownership Snapshot

The figures come from 13F filings covering the quarter that ended June 30, 2026. A 13F is a quarterly disclosure that large US investment managers file to show which stocks they hold. Because the filings report positions as of the end of the quarter rather than in real time, they capture a snapshot that may already have shifted by the time the numbers become public.

Depending on how the data is tallied, the filings show institutions controlling between 72.5% and 75.8% of CoreWeave (NASDAQ: CRWV). Some counts place the number of reporting institutions above 1,155, though the headline figure for this round is 1,125 holders.

CoreWeave's market capitalization recently sat between $45 billion and $50 billion, with the stock trading between $80 and $90 a share.

Two holders stand well above the rest of the crowd:

• Magnetar Financial LLC holds roughly 9.45% to 9.88% of shares, a position valued at approximately $5.2 billion.
• Nvidia Corp holds roughly 8.57% to 8.96%, worth approximately $4.7 billion.

Nvidia's presence on that list is worth pausing on: the company that sells the GPUs CoreWeave rents out is also one of its largest shareholders.

From Atlantic Crypto to AI Landlord

CoreWeave's origin story departs from the usual Silicon Valley script. The company was founded in 2017 as Atlantic Crypto, an Ethereum mining operation.

It later pointed that hardware at a different problem, pivoting to high-performance computing for artificial intelligence and renting GPU capacity to companies that need serious compute to train and run models. That places CoreWeave among the specialized GPU cloud operators — providers built around GPU capacity specifically rather than broad general-purpose services.

CoreWeave debuted on March 28, 2025. For fiscal year 2025, it reported revenue of approximately $5.13 billion.

In October 2026, CoreWeave announced a partnership with AdaniConneX to build a 240 MW AI data center in Navi Mumbai, India. The facility is slated to begin initial operations in mid-2028.

What the Institutional Pile-In Means

High institutional ownership cuts both ways. On one hand, it signals that large, research-heavy investors see CoreWeave as a credible way to own the AI infrastructure buildout without buying a trillion-dollar hyperscaler; more than 1,100 institutions do not usually crowd into a name by accident. On the other hand, when roughly three-quarters of a stock sits with institutions, a shift in positioning among a handful of large holders can move the share price quickly.

The Nvidia relationship deserves particular attention. Having its key supplier as a top shareholder can be a strategic advantage for CoreWeave, potentially smoothing access to hardware in a market where GPUs are scarce. It also ties the company's fortunes closely to a single vendor, and changes to that stake in future 13F filings are likely to draw scrutiny. The next round of quarterly disclosures will show whether the holder count and the combined $39.7 billion position grew, held steady, or thinned out.

The India data center is not expected to start operating until mid-2028 — a long time in a sector where demand forecasts and chip generations change fast. Construction and commissioning milestones for the Navi Mumbai site will be the operational markers to track between now and then.

CoreWeave is one of the clearest examples of a mining-era company converting GPU infrastructure into an AI business that institutions are now willing to own at scale. Its trajectory, from Atlantic Crypto in 2017 to a $39.7 billion institutional stake, shows how hardware built for one boom can be repurposed for the next.