Magnetar Financial’s Century Aluminum CENX Stock Holding History

Magnetar 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 Q2	–	Sell	-7,437	Closed	-$436K	–	1203
2026 Q1	$436K	Buy	+7,437	New	+$373K	﹤0.01%	659
2018 Q2	–	Sell	-15,010	Closed	-$248K	–	519
2018 Q1	$248K	Buy	+15,010	New	+$314K	﹤0.01%	492
2017 Q4	–	Sell	-61,504	Closed	-$1.02M	–	716
2017 Q3	$1.02M	Buy	61,504 +50,314	+450%	+$869K	0.02%	276
2017 Q2	$174K	Buy	+11,190	New	+$156K	﹤0.01%	725

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

Magnetar Financial's CENX Position: Q2 2026 in Review

Magnetar Financial sold out of Century Aluminum (CENX) in Q2 2026, closing a stake of 7,437 shares — an estimated $436K sold.

Magnetar Financial first reported a position in CENX in Q2 2017 and held it in 4 quarters. The position peaked at $1.02M in Q3 2017. 415 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

Magnetar Financial reported no remaining Century Aluminum position as of Q2 2026 after selling out during the quarter.
Magnetar Financial sold 7,437 Century Aluminum shares in Q2 2026, an estimated $436K.
Magnetar Financial first reported a position in Century Aluminum in Q2 2017 and held it in 4 quarters.
Magnetar Financial's Century Aluminum position peaked at $1.02M in Q3 2017.
415 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.