Jane Street’s Century Aluminum CENX Stock Holding History

Jane Street’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	$11.5M	Buy	249,200 +99,000	+66%	+$5.96M	﹤0.01%	2692
2026 Q1	$8.82M	Buy	150,200 +33,600	+29%	+$1.68M	﹤0.01%	2694
2025 Q4	$4.57M	Buy	116,600 +3,800	+3%	+$119K	﹤0.01%	3374
2025 Q3	$3.31M	Sell	112,800 -9,900	-8%	-$224K	﹤0.01%	4060
2025 Q2	$2.21M	Sell	122,700 -47,300	-28%	-$803K	﹤0.01%	4254
2025 Q1	$3.16M	Buy	170,000 +58,100	+52%	+$1.12M	﹤0.01%	3640
2024 Q4	$2.04M	Buy	111,900 +90,600	+425%	+$1.78M	﹤0.01%	4070
2024 Q3	$346K	Buy	+21,300	New	+$323K	﹤0.01%	7798
2024 Q1	–	Sell	-91,400	Closed	-$1.11M	–	9256
2023 Q4	$1.11M	Buy	+91,400	New	+$717K	﹤0.01%	5369
2023 Q2	–	Sell	-14,900	Closed	-$149K	–	8740
2023 Q1	$149K	Buy	14,900 +2,100	+16%	+$21.8K	﹤0.01%	8020
2022 Q4	$105K	Sell	12,800 -53,000	-81%	-$400K	﹤0.01%	8065
2022 Q3	$347K	Sell	65,800 -190,500	-74%	-$1.45M	﹤0.01%	7350
2022 Q2	$1.89M	Buy	256,300 +52,700	+26%	+$819K	﹤0.01%	4272
2022 Q1	$5.36M	Buy	203,600 +168,700	+483%	+$3.55M	﹤0.01%	2918
2021 Q4	$578K	Buy	34,900 +22,800	+188%	+$334K	﹤0.01%	6988
2021 Q3	$163K	Sell	12,100 -33,000	-73%	-$415K	﹤0.01%	9000
2021 Q2	$581K	Buy	+45,100	New	+$649K	﹤0.01%	6956
2020 Q4	–	Sell	-300,000	Closed	-$388K	–	7517
2020 Q3	$388K	Buy	+300,000	New	+$2.61M	﹤0.01%	5533
2015 Q3	–	Sell	-16,400	Closed	-$171K	–	3598
2015 Q2	$171K	Buy	+16,400	New	+$209K	﹤0.01%	3313

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

Jane Street's CENX Position: Q2 2026 in Review

Jane Street reduced its Century Aluminum (CENX) stake by 94% in Q2 2026, selling an estimated $74.6M and leaving 81,564 shares worth $3.75M. The position accounts for ﹤0.01% of the portfolio, ranked #4148.

Jane Street first reported a position in CENX in Q4 2013 and has held it in 39 quarters since. The position peaked at $77.5M in Q1 2026. 415 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

Jane Street held 81,564 shares of Century Aluminum worth $3.75M as of Q2 2026.
Jane Street sold 1,239,378 Century Aluminum shares in Q2 2026, an estimated $74.6M.
Century Aluminum made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #4148 holding.
Jane Street first reported a position in Century Aluminum in Q4 2013 and has held it in 39 quarters since.
Jane Street's Century Aluminum position peaked at $77.5M in Q1 2026.
415 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.