Martin Whitman - Third Avenue Management
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    53
Portfolio value:    $616,036,133
Holdings Activity Buys Sells    History
Holding/activity history for  Kaiser Aluminum Corp. (KALU)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2026   Q1 29,881 0.58 Reduce 65.00% 1.16 $120.51 $3,600,959 SEC
2025   Q4 85,363 1.78 Reduce 4.66% 0.06 $114.86 $9,804,794 SEC
2025   Q3 89,535 1.32 $78.34 $7,014,172 SEC
2025   Q2 89,535 1.48 Add 12.16% 0.16 $79.90 $7,153,847 SEC
2025   Q1 79,828 0.97 Add 0.26% <0.01 $60.62 $4,839,173 SEC
2024   Q4 79,623 1.08 $70.27 $5,595,108 SEC
2024   Q3 79,623 0.94 $72.52 $5,774,260 SEC
2024   Q2 79,623 1.20 Reduce 28.10% 0.44 $87.90 $6,998,862 SEC
2024   Q1 110,739 1.58 $89.36 $9,895,637 SEC
2023   Q4 110,739 1.29 Add 14.49% 0.16 $71.19 $7,883,509 SEC
2023   Q3 96,721 1.19 $73.33 $7,092,551 SEC
2023   Q2 96,721 1.14 Add 50.39% 0.38 $71.64 $6,929,092 SEC
2023   Q1 64,315 0.82 $74.63 $4,799,828 SEC
2022   Q4 64,315 0.85 $75.96 $4,885,367 SEC
2022   Q3 64,315 0.78 Add 23.30% 0.15 $61.35 $3,946,000 SEC
2022   Q2 52,160 0.73 $79.10 $4,126,000 SEC
2022   Q1 52,160 0.67 $94.17 $4,912,000 SEC
2021   Q4 52,160 0.64 $93.94 $4,900,000 SEC
2021   Q3 52,160 0.76 $108.97 $5,684,000 SEC
2021   Q2 52,160 0.85 $123.50 $6,442,000 SEC
2021   Q1 52,160 0.76 $110.51 $5,764,000 SEC
2020   Q4 52,160 0.72 Reduce 10.18% 0.04 $98.91 $5,159,000 SEC
2020   Q3 58,069 0.43 Add 41.32% 0.13 $53.59 $3,112,000 SEC
2020   Q2 41,089 0.42 Add 18.18% 0.06 $73.62 $3,025,000 SEC
2020   Q1 34,769 0.36 $69.29 $2,409,000 SEC
2019   Q4 34,769 0.38 Reduce 14.82% 0.05 $110.90 $3,856,000 SEC
2019   Q3 40,819 0.36 $98.97 $4,040,000 SEC
2019   Q2 40,819 0.33 $97.63 $3,985,000 SEC
2019   Q1 40,819 0.30 Reduce 34.88% 0.16 $95.62 $3,903,000 SEC
2018   Q4 62,678 0.46 $89.30 $5,597,000 SEC
2018   Q3 62,678 0.39 $109.07 $6,836,000 SEC
2018   Q2 62,678 0.32 $104.12 $6,526,000 SEC
2018   Q1 62,678 0.32 $100.91 $6,325,000 SEC
2017   Q4 62,678 0.32 $106.86 $6,698,000 SEC
2017   Q3 62,678 0.29 Reduce 9.92% 0.03 $103.15 $6,465,000 SEC
2017   Q2 69,578 0.28 Add 13.18% 0.03 $88.53 $6,160,000 SEC
2017   Q1 61,478 0.23 Add 16.48% 0.03 $79.90 $4,912,000 SEC
2016   Q4 52,778 0.19 Add 6.83% 0.01 $77.68 $4,100,000 SEC
2016   Q3 49,405 0.20 Add 2.59% <0.01 $86.49 $4,273,000 SEC
2016   Q2 48,157 0.20 $90.41 $4,354,000 SEC
2016   Q1 48,157 0.16 Reduce 46.65% 0.12 $84.54 $4,071,000 SEC
2015   Q4 90,260 0.25 Reduce 16.12% 0.04 $83.66 $7,551,000 SEC
2015   Q3 107,610 0.24 Add 0.03% <0.01 $80.25 $8,636,000 SEC
2015   Q2 107,583 0.23 $83.08 $8,938,000 SEC
2015   Q1 107,583 0.22 Add 0.03% <0.01 $76.89 $8,272,000 SEC
2014   Q4 107,548 0.21 Reduce 67.95% 0.39 $71.43 $7,682,000 SEC
2014   Q3 335,574 0.57 Reduce 23.13% 0.15 $76.22 $25,577,000 SEC
2014   Q2 436,533 0.65 Reduce 6.74% 0.05 $72.87 $31,810,000 SEC
2014   Q1 468,102 0.69 $71.42 $33,432,000 SEC
2013   Q4 468,102 0.64 Reduce 0.26% <0.01 $70.24 $32,879,000 SEC
2013   Q3 469,302 0.68 Add 8.06% 0.05 $71.25 $33,438,000 SEC
2013   Q2 434,302 0.57 Reduce 34.06% $61.94 $26,901,000 SEC
2012   Q2 658,643 0.00 Reduce 3.37% 0.03 $51.84 $34,144,000 SEC
2012   Q1 681,614 0.92 Reduce 21.69% 0.27 $47.26 $32,213,000 SEC
2011   Q4 870,394 1.23 Reduce 6.76% 0.09 $45.88 $39,934,000 SEC
2011   Q3 933,458 1.27 Add 14.54% 0.16 $44.28 $41,334,000 SEC
2011   Q2 814,979 1.08 Add 39.84% 0.31 $54.62 $44,514,000 SEC
2011   Q1 582,799 0.63 Add 0.17% <0.01 $49.25 $28,703,000 SEC
2010   Q4 581,799 0.64 Reduce 23.46% 0.18 $50.09 $29,142,000 SEC
2010   Q3 760,098 0.76 Reduce 9.53% 0.07 $42.79 $32,525,000 SEC
2010   Q2 840,179 0.76 Add 0.20% <0.01 $34.67 $29,129,000 SEC
2010   Q1 838,479 0.68 Add 0.18% <0.01 $38.57 $32,340,000 SEC
2009   Q4 836,979 0.75 Reduce 0.02% <0.01 $41.62 $34,835,000 SEC
2009   Q3 837,137 0.65 Add 0.04% <0.01 $36.36 $30,438,000 SEC
2009   Q2 836,837 0.78 Add 0.02% <0.01 $35.91 $30,051,000 SEC
2009   Q1 836,637 0.58 Buy 0.58 $23.12 $19,343,000 SEC