Jane Street
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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 		$20.3M Buy
441,600
+332,800
+306% +$20M ﹤0.01% 2138
2026
Q1 		$6.39M Sell
108,800
-29,100
-21% -$1.46M ﹤0.01% 3143
2025
Q4 		$5.4M Sell
137,900
-20,700
-13% -$647K ﹤0.01% 3110
2025
Q3 		$4.66M Buy
158,600
+13,400
+9% +$304K ﹤0.01% 3520
2025
Q2 		$2.62M Sell
145,200
-90,800
-38% -$1.54M ﹤0.01% 3980
2025
Q1 		$4.38M Buy
236,000
+33,600
+17% +$646K ﹤0.01% 3125
2024
Q4 		$3.69M Buy
202,400
+59,700
+42% +$1.17M ﹤0.01% 3106
2024
Q3 		$2.32M Buy
142,700
+13,100
+10% +$198K ﹤0.01% 4169
2024
Q2 		$2.17M Buy
129,600
+20,700
+19% +$352K ﹤0.01% 4331
2024
Q1 		$1.68M Sell
108,900
-175,100
-62% -$1.97M ﹤0.01% 4447
2023
Q4 		$3.45M Buy
284,000
+256,400
+929% +$2.01M ﹤0.01% 3411
2023
Q3 		$198K Buy
27,600
+16,500
+149% +$133K ﹤0.01% 7623
2023
Q2 		$96.8K Sell
11,100
-20,400
-65% -$177K ﹤0.01% 8015
2023
Q1 		$315K Sell
31,500
-16,000
-34% -$166K ﹤0.01% 7108
2022
Q4 		$389K Sell
47,500
-11,200
-19% -$84.6K ﹤0.01% 6584
2022
Q3 		$310K Sell
58,700
-317,500
-84% -$2.41M ﹤0.01% 7532
2022
Q2 		$2.77M Buy
376,200
+172,900
+85% +$2.69M ﹤0.01% 3587
2022
Q1 		$5.35M Sell
203,300
-13,100
-6% -$276K ﹤0.01% 2920
2021
Q4 		$3.58M Buy
216,400
+182,500
+538% +$2.67M ﹤0.01% 3392
2021
Q3 		$456K Sell
33,900
-28,200
-45% -$354K ﹤0.01% 7462
2021
Q2 		$800K Buy
+62,100
New +$894K ﹤0.01% 6319
2018
Q4 		– Sell
-31,400
Closed -$376K – 4989
2018
Q3 		$376K Buy
+31,400
New +$404K ﹤0.01% 3949
2016
Q2 		– Sell
-12,700
Closed -$90K – 4088
2016
Q1 		$90K Buy
12,700
+2,200
+21% +$12.2K ﹤0.01% 3902
2015
Q4 		$46K Buy
+10,500
New +$45K ﹤0.01% 3879

Other funds holding CENX

G
Glencore Baar, Switzerland $4.87B AUM 67.38% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
SG
Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
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.