Boston Partners
CENX icon

Boston Partners’s Century Aluminum CENX Stock Holding History

Boston Partners’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 		$39.3M Buy
854,095
+544,199
+176% +$32.7M 0.03% 312
2026
Q1 		$18.2M Sell
309,896
-290,341
-48% -$14.6M 0.02% 380
2025
Q4 		$23.5M Sell
600,237
-539,424
-47% -$16.9M 0.02% 357
2025
Q3 		$33.5M Sell
1,139,661
-594,007
-34% -$13.5M 0.03% 311
2025
Q2 		$31.2M Buy
1,733,668
+1,339,744
+340% +$22.7M 0.03% 303
2025
Q1 		$7.31M Buy
+393,924
New +$7.57M 0.01% 412

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

Boston Partners's CENX Position: Q2 2026 in Review

Boston Partners increased its Century Aluminum (CENX) stake by 176% in Q2 2026, buying an estimated $32.7M and bringing the position to 854,095 shares worth $39.3M. The position accounts for 0.03% of the portfolio, ranked #312.

Boston Partners first reported a position in CENX in Q1 2025 and has held it in 6 quarters since. 413 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

  • Boston Partners held 854,095 shares of Century Aluminum worth $39.3M as of Q2 2026.
  • Boston Partners bought 544,199 Century Aluminum shares in Q2 2026, an estimated $32.7M.
  • Century Aluminum made up 0.03% of Boston Partners's portfolio in Q2 2026, its #312 holding.
  • Boston Partners first reported a position in Century Aluminum in Q1 2025 and has held it in 6 quarters since.
  • 413 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Boston Partners's 13F filing for Q2 2026, filed 4 Aug 2026.