Winton Group’s Century Aluminum CENX Stock Holding History

Winton Group’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 Q2	$640K	Sell	13,900 -5,700	-29%	-$343K	0.02%	629
2026 Q1	$1.15M	Sell	19,600 -23,014	-54%	-$1.15M	0.04%	507
2025 Q4	$1.67M	Sell	42,614 -6,298	-13%	-$197K	0.06%	327
2025 Q3	$1.44M	Sell	48,912 -35,585	-42%	-$807K	0.05%	315
2025 Q2	$1.52M	Sell	84,497 -1,004	-1%	-$17K	0.08%	302
2025 Q1	$1.59M	Buy	85,501 +25,292	+42%	+$486K	0.1%	212
2024 Q4	$1.1M	Sell	60,209 -13,262	-18%	-$261K	0.07%	280
2024 Q3	$1.19M	Buy	73,471 +11,328	+18%	+$172K	0.08%	202
2024 Q2	$1.04M	Sell	62,143 -18,654	-23%	-$318K	0.07%	226
2024 Q1	$1.24M	Buy	+80,797	New	+$907K	0.09%	184
2019 Q3	–	Sell	-73,068	Closed	-$505K	–	1541
2019 Q2	$505K	Buy	73,068 +8,487	+13%	+$63.1K	0.01%	680
2019 Q1	$573K	Buy	+64,581	New	+$559K	0.01%	523

Other funds holding CENX

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

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Winton Group's CENX Position: Q2 2026 in Review

Winton Group reduced its Century Aluminum (CENX) stake by 29% in Q2 2026, selling an estimated $343K and leaving 13,900 shares worth $640K. The position accounts for 0.02% of the portfolio, ranked #629.

Winton Group first reported a position in CENX in Q1 2019 and has held it in 12 quarters since. The position peaked at $1.67M in Q4 2025. 413 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

Winton Group held 13,900 shares of Century Aluminum worth $640K as of Q2 2026.
Winton Group sold 5,700 Century Aluminum shares in Q2 2026, an estimated $343K.
Century Aluminum made up 0.02% of Winton Group's portfolio in Q2 2026, its #629 holding.
Winton Group first reported a position in Century Aluminum in Q1 2019 and has held it in 12 quarters since.
Winton Group's Century Aluminum position peaked at $1.67M in Q4 2025.
413 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.