Mariner
KALU icon

Mariner’s Kaiser Aluminum KALU Stock Holding History

Mariner’s Portfolio KALU Stock Details KALU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$223K Sell
1,140
-1,384
-55% -$235K ﹤0.01% 3068
2026
Q1 		$304K Sell
2,524
-300
-11% -$38K ﹤0.01% 2855
2025
Q4 		$327K Buy
2,824
+156
+6% +$14.8K ﹤0.01% 2769
2025
Q3 		$206K Sell
2,668
-593
-18% -$47.1K ﹤0.01% 3156
2025
Q2 		$261K Sell
3,261
-800
-20% -$54.5K ﹤0.01% 2837
2025
Q1 		$246K Sell
4,061
-957
-19% -$67K ﹤0.01% 2816
2024
Q4 		$353K Buy
5,018
+121
+2% +$9.21K ﹤0.01% 2481
2024
Q3 		$355K Sell
4,897
-2,795
-36% -$215K ﹤0.01% 2425
2024
Q2 		$676K Buy
7,692
+4,051
+111% +$377K ﹤0.01% 1802
2024
Q1 		$325K Buy
+3,641
New +$255K ﹤0.01% 2365

Other funds holding KALU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return

Mariner's KALU Position: Q2 2026 in Review

Mariner reduced its Kaiser Aluminum (KALU) stake by 55% in Q2 2026, selling an estimated $235K and leaving 1,140 shares worth $223K. The position accounts for ﹤0.01% of the portfolio, ranked #3068.

Mariner first reported a position in KALU in Q1 2024 and has held it in 10 quarters since. The position peaked at $676K in Q2 2024. 336 funds tracked by Wall St. Rank hold KALU as of Q2 2026.

  • Mariner held 1,140 shares of Kaiser Aluminum worth $223K as of Q2 2026.
  • Mariner sold 1,384 Kaiser Aluminum shares in Q2 2026, an estimated $235K.
  • Kaiser Aluminum made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3068 holding.
  • Mariner first reported a position in Kaiser Aluminum in Q1 2024 and has held it in 10 quarters since.
  • Mariner's Kaiser Aluminum position peaked at $676K in Q2 2024.
  • 336 funds tracked by Wall St. Rank held Kaiser Aluminum as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.