Who owns AI
Follow the big money. Who's buying AI, who's selling, who's betting big, from their official filings. 7,684 institutions declare $28.6T in the 229 AI and semiconductor companies tracked on Silicon Floor, in their Form 13F filings for the quarter ended Jun 30, 2026. From Mar 31, 2026 to Jun 30, 2026, the institutions that filed both quarters bought $1.8T and sold $1.6T of these stocks, at each quarter's prices.
Largest holders
- Vanguard: $3.6T across 225 companies (index manager)
- BlackRock: $3.1T across 226 companies (index manager)
- State Street: $1.6T across 221 companies (index manager)
- Fidelity (FMR): $1.2T across 223 companies
- Geode Capital: $890.9B across 220 companies (index manager)
- Capital Group: $881.7B across 132 companies
- JPMorgan: $717.8B across 225 companies
- Invesco: $683.3B across 220 companies (index manager)
- Morgan Stanley: $627.0B across 227 companies (private wealth platform)
- T. Rowe Price: $529.7B across 215 companies
- Norges Bank: $478.8B across 161 companies (index manager)
- UBS: $462.8B across 227 companies (private wealth platform)
- Bank of America: $385.2B across 223 companies (private wealth platform)
- Northern Trust: $373.8B across 224 companies (index manager)
- Goldman Sachs: $353.8B across 225 companies
- Charles Schwab: $263.5B across 216 companies (index manager)
- BNY: $245.5B across 220 companies
- Legal & General: $236.0B across 222 companies (index manager)
- Wellington: $212.6B across 172 companies
- Amundi: $204.0B across 197 companies
- Nuveen: $201.5B across 220 companies
- Franklin Templeton: $188.6B across 202 companies
- Ameriprise Financial, Inc.: $172.4B across 211 companies (private wealth platform)
- Dimensional: $161.4B across 205 companies
- ROYAL BANK OF CANADA: $161.0B across 226 companies
Moves of the quarter
Active managers only: index funds, market makers and private wealth platforms trade on flows, hedges or thousands of accounts.
- Fidelity (FMR) trimmed Marvell (MRVL): -$22.1B at the quarter's price
- Berkshire Hathaway Inc added to Alphabet (GOOGL): +$17.2B at the quarter's price
- T. Rowe Price trimmed Apple (AAPL): -$14.1B at the quarter's price
- JPMorgan added to Alphabet (GOOGL): +$13.7B at the quarter's price
- Capital Group trimmed Micron (MU): -$13.3B at the quarter's price
- Fidelity (FMR) trimmed Sandisk (SNDK): -$12.6B at the quarter's price
- T. Rowe Price trimmed Microsoft (MSFT): -$12.0B at the quarter's price
- Fidelity (FMR) trimmed Meta Platforms (META): -$11.7B at the quarter's price
- JPMorgan added to Micron (MU): +$11.5B at the quarter's price
- T. Rowe Price added to Micron (MU): +$10.7B at the quarter's price
- Fidelity (FMR) added to Alphabet (GOOGL): +$9.8B at the quarter's price
- Sanders Capital, LLC trimmed Seagate (STX): -$9.1B at the quarter's price
Convictions
Lines weighing 5% to 50% of an active manager's whole 13F portfolio (portfolios above $500M).
- Berkshire Hathaway Inc: Apple (AAPL) is 22.0% of its 13F portfolio ($66.0B)
- NVIDIA Corporation: Intel (INTC) is 47.3% of its 13F portfolio ($30.0B)
- BAMCO INC /NY/: SpaceX (SPCX) is 37.4% of its 13F portfolio ($24.9B)
- NVIDIA Corporation: SpaceX (SPCX) is 33.1% of its 13F portfolio ($21.0B)
- H&H International Investment, LLC: Apple (AAPL) is 41.1% of its 13F portfolio ($7.8B)
- GATES FOUNDATION TRUST: Caterpillar (CAT) is 19.7% of its 13F portfolio ($6.8B)
- Situational Awareness LP: Sandisk (SNDK) is 28.0% of its 13F portfolio ($5.7B)
- Situational Awareness LP: Micron (MU) is 27.5% of its 13F portfolio ($5.6B)
- Newlands Management Operations LLC: Meta Platforms (META) is 32.9% of its 13F portfolio ($5.4B)
- Magnetar Financial LLC: CoreWeave (CRWV) is 47.3% of its 13F portfolio ($5.2B)
Best-performing AI portfolios
Return of the AI-stock portfolio each active manager declared at the start of the quarter (Form 13F), held unchanged from Jun 30, 2026 to Sep 30, 2026: 1,785 managers with at least $250M in these stocks and five positions; SMH returned -7.1%. Trades made during the quarter are not visible in 13F filings; this is not the return of their funds.
- PZENA INVESTMENT MANAGEMENT LLC: +35.5% (+42.7% vs SMH): $3.1B in 15 AI stocks at the start, largest SWKS, CTSH, ACN
- Optimus Prime Fund Management Co., Ltd.: +25.1% (+32.3% vs SMH): $645.0M in 9 AI stocks at the start, largest SNOW, AMZN, GOOGL
- FERNBRIDGE CAPITAL MANAGEMENT LP: +24.8% (+31.9% vs SMH): $617.0M in 6 AI stocks at the start, largest CRM, INTU, AMZN
- Value Partners Investments Inc.: +24.3% (+31.5% vs SMH): $362.2M in 17 AI stocks at the start, largest MSFT, CRM, GOOGL
- Generali Powszechne Towarzystwo Emerytalne: +21.7% (+28.9% vs SMH): $348.1M in 9 AI stocks at the start, largest AMZN, NVDA, MSFT
- Scharf Investments, LLC: +20.9% (+28.0% vs SMH): $446.3M in 13 AI stocks at the start, largest MSFT, AMZN, META
- Ruffer LLP: +20.6% (+27.7% vs SMH): $399.7M in 8 AI stocks at the start, largest AMZN, MSFT, FTNT
- Vulcan Value Partners, LLC: +20.0% (+27.1% vs SMH): $895.0M in 6 AI stocks at the start, largest MSFT, AMZN, GOOGL
- Van Cleef Asset Management,Inc: +18.7% (+25.9% vs SMH): $320.1M in 19 AI stocks at the start, largest AAPL, GOOGL, PLTR
- Maven Securities LTD: +18.6% (+25.7% vs SMH): $315.6M in 16 AI stocks at the start, largest MSFT, META, NVDA
Stakes above 5% (Schedule 13D/G)
- Elon R. Musk: SpaceX (SPCX) (23.6% of the capital)
- Michael S. Dell: Dell (DELL) (41.8% of the capital)
- Peter Thiel: SpaceX (SPCX) (1.6% of the capital)
- Samsung Display Co., Ltd.: Corning (GLW) (7.9% of the capital)
- John T. Kim: Amkor (AMKR) (30.4% of the capital)
- PJ Millennium Limited Partnership: VNET Group (VNET) (38.1% of the capital)
- Jorge Mas: MasTec (MTZ) (14.8% of the capital)
- GIC Private Limited: GDS Holdings (GDS) (7.5% of the capital)
- LandBridge Holdings LLC: LandBridge (LB) (61.2% of the capital)
- Sheng Chen: VNET Group (VNET) (24.8% of the capital)
Flows by sector
- Cloud & AI giants: +$95.0B net ($378.9B bought, $283.8B sold); $11.0T held
- Chips & compute: +$72.3B net ($438.7B bought, $366.3B sold); $7.6T held
- Power, electrical & cooling: +$8.3B net ($187.6B bought, $179.3B sold); $2.4T held
- Equipment & test: +$30.1B net ($160.3B bought, $130.2B sold); $1.8T held
- AI software: +$19.7B net ($168.9B bought, $149.2B sold); $1.7T held
- Memory & storage: -$38.7B net ($179.8B bought, $218.5B sold); $1.7T held
- Interconnect: +$2.9B net ($78.0B bought, $75.2B sold); $945.4B held
- Neoclouds & data centers: +$38.2B net ($83.8B bought, $45.7B sold); $550.0B held
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