13F Filings Reveal Split on AI Infrastructure and Chip Bets

Form 13F requires U.S. investment managers overseeing at least $100 million in qualifying securities to disclose long equity holdings within 45 days of each quarter-end. The filings are backward-looking and omit short positions, but remain a closely watched gauge of institutional positioning. As artificial-intelligence infrastructure spending accelerates, investors are moving beyond a broad AI trade and making sharper choices among hyperscalers, foundries and memory-chip suppliers based on capital intensity, valuations and expected returns.

Filings released on Aug. 14 for positions as of June 30 showed Berkshire Hathaway added about 48.1 million Alphabet shares, lifting its stake to roughly 106 million shares worth $37.76 billion. SoftBank Group cut its TSMC ADR holding by about 72% to 565,000 shares, valued at $269.8 million. Bridgewater Associates slashed Micron Technology by about 92% to 116,666 shares worth $134.7 million, underscoring increasingly divergent bets as the AI investment cycle shifts toward stock selection.