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
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 $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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Mariner's KALU Position: Q1 2026 in Review

Mariner reduced its Kaiser Aluminum (KALU) stake by 11% in Q1 2026, selling an estimated $38K and leaving 2,524 shares worth $304K. The position accounts for ﹤0.01% of the portfolio, ranked #2855.

Mariner first reported a position in KALU in Q1 2024 and has held it in 9 quarters since. The position peaked at $676K in Q2 2024. 286 funds tracked by Wall St. Rank hold KALU as of Q1 2026.

  • Mariner held 2,524 shares of Kaiser Aluminum worth $304K as of Q1 2026.
  • Mariner sold 300 Kaiser Aluminum shares in Q1 2026, an estimated $38K.
  • Kaiser Aluminum made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #2855 holding.
  • Mariner first reported a position in Kaiser Aluminum in Q1 2024 and has held it in 9 quarters since.
  • Mariner's Kaiser Aluminum position peaked at $676K in Q2 2024.
  • 286 funds tracked by Wall St. Rank held Kaiser Aluminum as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.