CoreWeave institutional holders climb to 1,125 as total stake nears $40 billion

CoreWeave has picked up more institutional fans. The number of institutions holding the AI cloud provider’s stock rose to 1,125, lifting institutional ownership to 75.8% and pushing total institutional investment to $39.7 billion. That is a lot of professional money parked in a company that, not long ago, was mining Ethereum. Wall Street now owns about three out of every four CoreWeave shares. Who owns CoreWeave now 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. Those filings show institutions controlling somewhere between 72.5% and 75.8% of CoreWeave (NASDAQ: CRWV), depending on how the data is tallied. Some counts put the number of reporting institutions above 1,155. The headline figure for this round stands at 1,125 holders. CoreWeave’s market capitalization recently sat between $45 billion and $50 billion. The stock has been 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 rou...