AMERICAN CENTURY COMPANIES INC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2025, the fund manages $199.0B in reported equity holdings across 2811 positions. The largest holdings are NVDA (5.9%), MSFT (3.7%), AAPL (3.6%), AMZN (3.1%), GOOG (3.0%). The portfolio is concentrated in Other (83.0%), Communication Services (5.3%), Financial Services (2.6%). Data sourced from SEC EDGAR 13F filings (CIK 748054).