Century Aluminum Co (CENX) Institutional Ownership

Ownership Summary

Century Aluminum Co (NASDAQ:CENX) showed up in the 13F filings of 379 institutional investors as of March 2026.

• Collectively, these holders controlled 101.7% of Century Aluminum's outstanding shares in March 2026, down from 163.6% in December 2025.
• They decreased total shares held in Century Aluminum by -30.37% from last quarter, and the number of investors in CENX increased 72.27% annually.
• Of these 379 funds, 230 grew their exposure to Century Aluminum, 123 cut back, and 26 maintained positions.
• In total, institutional investors held 100.65Mn shares in Century Aluminum as of March 2026, down by 43.91Mn shares quarter on quarter, and up 5.65Mn shares year over year.
• As of March 31, 2026, the biggest holder of Century Aluminum is Glencore plc at 29.69Mn shares, representing 29.99% of shares outstanding.
• The biggest buyers of Century Aluminum for the quarter ending March 2026 included VANGUARD PORTFOLIO MANAGEMENT LLC (4.24Mn), FMR LLC (2.65Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.59Mn), Invesco Ltd. (1.45Mn), JANE STREET GROUP, LLC (1.28Mn).
• The largest sales of CENX for the quarter ending March 2026 came from Glencore plc (59.83Mn), Goldman Sachs Group Inc (952.26K), Sourcerock Group LLC (934.74K), AMERICAN CENTURY COMPANIES INC (742.21K), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (693.69K).
• Per Business Quant, the top 10 investors in CENX for the quarter ending March 2026 include Glencore plc (29.69Mn), BlackRock, Inc. (9.01Mn), State Street Corp (4.67Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.24Mn), Sourcerock Group LLC (2.69Mn), FMR LLC (2.66Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.59Mn), DIMENSIONAL FUND ADVISORS LP (2.19Mn), Invesco Ltd. (2.08Mn), MILLENNIUM MANAGEMENT LLC (1.99Mn).