AMERICAN CENTURY COMPANIES INC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $226.3B in reported equity holdings across 2884 positions. The largest holdings are NVDA (5.4%), GOOG (2.7%), AMZN (2.6%), AAPL (2.4%), MSFT (2.4%). The portfolio is concentrated in Other (83.3%), Communication Services (4.5%), Technology (3.2%). Data sourced from SEC EDGAR 13F filings (CIK 748054).