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GeoSphere Capital Management’s Century Aluminum CENX Stock Holding History

GeoSphere Capital Management’s Portfolio CENX Stock Details CENX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.81M Buy
+82,000
New +$4.11M 2.1% 12
2025
Q2 		– Sell
-177,174
Closed -$3.29M – 44
2025
Q1 		$3.29M Buy
+177,174
New +$3.4M 1.79% 12

Other funds holding CENX

G
Glencore Baar, Switzerland $4.87B AUM 67.38% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SG
Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

GeoSphere Capital Management's CENX Position: Q1 2026 in Review

GeoSphere Capital Management opened a new position in Century Aluminum (CENX) in Q1 2026: 82,000 shares worth $4.81M. The stake represents 2.1% of the portfolio and ranks #12 among its holdings. This is a return to the name: GeoSphere Capital Management previously reported a position in CENX as recently as Q1 2025.

GeoSphere Capital Management first reported a position in CENX in Q1 2025 and has held it in 2 quarters since. 386 funds tracked by Wall St. Rank hold CENX as of Q1 2026.

  • GeoSphere Capital Management held 82,000 shares of Century Aluminum worth $4.81M as of Q1 2026.
  • Century Aluminum was a new GeoSphere Capital Management position in Q1 2026.
  • Century Aluminum made up 2.1% of GeoSphere Capital Management's portfolio in Q1 2026, its #12 holding.
  • GeoSphere Capital Management first reported a position in Century Aluminum in Q1 2025 and has held it in 2 quarters since.
  • 386 funds tracked by Wall St. Rank held Century Aluminum as of Q1 2026.

Based on GeoSphere Capital Management's 13F filing for Q1 2026, filed 15 May 2026.