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Berkshire's $312B portfolio is heavily concentrated in two sectors:
Apple alone makes up ~22% of total holdings. Buffett trimmed AAPL by 6% this quarter — the fourth straight quarter of reductions.
This quarter: Berkshire Hathaway
Berkshire Hathaway Inc
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Polar Capital Q1: $28.16B Tech-Growth Book
Polar Capital Holdings Plc’s 2026Q1 13F shows a $28.16B US equity book led by Alphabet, Apple, Nvidia and Microsoft, with AI infrastructure names deepening the growth sleeve.
PSP Investments Q1: $32.12B Public Equity Book
PSP Investments reported a $32.12B 2026Q1 public equity book led by NVDA, MSFT, and AAPL, with a diversified tail still dominating the 13F.
Ohio PERS Q1: Nvidia Leads $30.92B Book
Ohio PERS reported a $30.92B Q1 2026 13F book led by NVDA, AAPL and MSFT, showing pension-scale AI exposure with a broad tail.
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