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BLAIR WILLIAM & CO/IL

BLAIR WILLIAM & CO/IL is an Investment Adviser institutional filer with the SEC under CIK 902367, reporting 1,998 portfolio positions, with 20 historical 13F filings on file. Most recent reporting period: 2026-06-30.

A Form 13F reports a manager's US-listed stock and option positions only. It does not include real estate, private funds, bonds, cash or non-US holdings, so a 13F portfolio value is not the firm's total assets under management (AUM).

  • State of incorporation: DE
  • Filing type: 13F-HR
  • Latest reporting period: 2026-06-30
  • Last filed: 2026-08-11

Top 10 portfolio positions

The largest reported holdings in BLAIR WILLIAM & CO/IL's most recent 13F filing, ranked by reported market value.

  1. APPLE INC (AAPL)
  2. AMAZON COM INC (AMZN)
  3. MICROSOFT CORP (MSFT)
  4. NVIDIA CORPORATION (NVDA)
  5. ALPHABET INC (GOOG)
  6. ALPHABET INC (GOOGL)
  7. GE VERNOVA INC (GEV)
  8. JPMORGAN CHASE & CO (JPM)
  9. STATE STR SPDR S&P 500 ETF T (SPY)
  10. VISA INC (V)
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