Assenagon Asset Management
CENX icon

Assenagon Asset Management’s Century Aluminum CENX Stock Holding History

Assenagon Asset Management’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 		$70.4M Sell
1,531,167
-299,157
-16% -$18M 0.09% 175
2026
Q1 		$107M Buy
1,830,324
+957,571
+110% +$48M 0.16% 106
2025
Q4 		$34.2M Buy
872,753
+464,814
+114% +$14.5M 0.05% 278
2025
Q3 		$12M Buy
407,939
+207,040
+103% +$4.69M 0.02% 446
2025
Q2 		$3.62M Sell
200,899
-96,882
-33% -$1.64M 0.01% 632
2025
Q1 		$5.53M Sell
297,781
-92,446
-24% -$1.78M 0.01% 528
2024
Q4 		$7.11M Sell
390,227
-231,073
-37% -$4.54M 0.01% 600
2024
Q3 		$10.1M Buy
621,300
+89,621
+17% +$1.36M 0.02% 533
2024
Q2 		$8.91M Buy
531,679
+296,101
+126% +$5.04M 0.02% 463
2024
Q1 		$3.63M Buy
235,578
+100,639
+75% +$1.13M 0.01% 688
2023
Q4 		$1.64M Sell
134,939
-215,800
-62% -$1.69M ﹤0.01% 989
2023
Q3 		$2.52M Buy
350,739
+252,095
+256% +$2.03M 0.01% 771
2023
Q2 		$860K Hold
98,644
– – ﹤0.01% 1004
2023
Q1 		$986K Sell
98,644
-98,626
-50% -$1.02M ﹤0.01% 1050
2022
Q4 		$1.61M Buy
197,270
+145,793
+283% +$1.1M 0.01% 884
2022
Q3 		$272K Sell
51,477
-672,430
-93% -$5.11M ﹤0.01% 1230
2022
Q2 		$5.33M Buy
723,907
+362,207
+100% +$5.63M 0.02% 522
2022
Q1 		$9.52M Sell
361,700
-334,660
-48% -$7.04M 0.03% 379
2021
Q4 		$11.5M Buy
696,360
+532,499
+325% +$7.79M 0.03% 305
2021
Q3 		$2.2M Buy
163,861
+127,391
+349% +$1.6M 0.01% 663
2021
Q2 		$470K Sell
36,470
-96,106
-72% -$1.38M ﹤0.01% 1047
2021
Q1 		$2.34M Buy
+132,576
New +$1.89M 0.01% 679
2020
Q2 		– Sell
-15,442
Closed -$56K – 1126
2020
Q1 		$56K Buy
+15,442
New +$86.4K ﹤0.01% 744

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

Assenagon Asset Management's CENX Position: Q2 2026 in Review

Assenagon Asset Management reduced its Century Aluminum (CENX) stake by 16% in Q2 2026, selling an estimated $18M and leaving 1,531,167 shares worth $70.4M. The position accounts for 0.09% of the portfolio, ranked #175.

Assenagon Asset Management first reported a position in CENX in Q1 2020 and has held it in 23 quarters since. The position peaked at $107M in Q1 2026. 415 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

  • Assenagon Asset Management held 1,531,167 shares of Century Aluminum worth $70.4M as of Q2 2026.
  • Assenagon Asset Management sold 299,157 Century Aluminum shares in Q2 2026, an estimated $18M.
  • Century Aluminum made up 0.09% of Assenagon Asset Management's portfolio in Q2 2026, its #175 holding.
  • Assenagon Asset Management first reported a position in Century Aluminum in Q1 2020 and has held it in 23 quarters since.
  • Assenagon Asset Management's Century Aluminum position peaked at $107M in Q1 2026.
  • 415 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Assenagon Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.