Rossby Financial’s Century Aluminum CENX Stock Holding History

Rossby Financial’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	$553K	Sell	8,700 -350	-4%	-$17.5K	0.11%	171
2025 Q4	$355K	Buy	+9,050	New	+$283K	0.11%	163

Other funds holding CENX

Glencore Baar, Switzerland $4.87B AUM 67.38% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return

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 Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Rossby Financial's CENX Position: Q1 2026 in Review

Rossby Financial reduced its Century Aluminum (CENX) stake by 3.9% in Q1 2026, selling an estimated $17.5K and leaving 8,700 shares worth $553K. The position accounts for 0.11% of the portfolio, ranked #171.

Rossby Financial first reported a position in CENX in Q4 2025 and has held it in 2 quarters since. 386 funds tracked by Wall St. Rank hold CENX as of Q1 2026.

Rossby Financial held 8,700 shares of Century Aluminum worth $553K as of Q1 2026.
Rossby Financial sold 350 Century Aluminum shares in Q1 2026, an estimated $17.5K.
Century Aluminum made up 0.11% of Rossby Financial's portfolio in Q1 2026, its #171 holding.
Rossby Financial first reported a position in Century Aluminum in Q4 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 Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.