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
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

G
Glencore Baar, Switzerland $4.87B AUM 67.38% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SG
Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return
Fidelity Investments
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
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street's CENX Position: Q1 2026 in Review

Jane Street increased its Century Aluminum (CENX) stake by 3,082% in Q1 2026, buying an estimated $64.1M and bringing the position to 1,320,942 shares worth $77.5M. The position accounts for 0.01% of the portfolio, ranked #778.

Jane Street first reported a position in CENX in Q4 2013 and has held it in 38 quarters since. 386 funds tracked by Wall St. Rank hold CENX as of Q1 2026.

  • Jane Street held 1,320,942 shares of Century Aluminum worth $77.5M as of Q1 2026.
  • Jane Street bought 1,279,424 Century Aluminum shares in Q1 2026, an estimated $64.1M.
  • Century Aluminum made up 0.01% of Jane Street's portfolio in Q1 2026, its #778 holding.
  • Jane Street first reported a position in Century Aluminum in Q4 2013 and has held it in 38 quarters since.
  • 386 funds tracked by Wall St. Rank held Century Aluminum as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.