AMERICAN CENTURY COMPANIES INC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q1 2026, the fund manages $194.3B in reported equity holdings across 2830 positions. The largest holdings are NVDA (5.5%), AAPL (3.3%), MSFT (3.1%), AMZN (2.6%), GOOG (2.6%). The portfolio is concentrated in Other (83.3%), Communication Services (4.6%), Technology (2.5%). Data sourced from SEC EDGAR 13F filings (CIK 748054).