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  Prosperity Bancshares Inc. (PB)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2026   Q1 102,168 1.11 $67.18 $6,863,646 SEC
2025   Q4 102,168 1.28 $69.11 $7,060,830 SEC
2025   Q3 102,168 1.28 $66.96 $6,841,169 SEC
2025   Q2 102,168 1.48 $70.24 $7,176,280 SEC
2025   Q1 102,168 1.46 $71.37 $7,291,730 SEC
2024   Q4 102,168 1.49 $75.35 $7,698,359 SEC
2024   Q3 102,168 1.20 Add 0.20% <0.01 $72.07 $7,363,248 SEC
2024   Q2 101,965 1.07 $61.14 $6,234,140 SEC
2024   Q1 101,965 1.07 $65.78 $6,707,258 SEC
2023   Q4 101,965 1.13 $67.73 $6,906,089 SEC
2023   Q3 101,965 0.92 $53.80 $5,485,717 SEC
2023   Q2 101,965 0.95 $56.48 $5,758,983 SEC
2023   Q1 101,965 1.07 $61.52 $6,272,887 SEC
2022   Q4 101,965 1.29 $72.68 $7,410,816 SEC
2022   Q3 101,965 1.34 $66.69 $6,800,000 SEC
2022   Q2 101,965 1.24 Reduce 5.52% 0.06 $68.28 $6,962,000 SEC
2022   Q1 107,928 1.02 $69.39 $7,489,000 SEC
2021   Q4 107,928 1.03 $72.31 $7,804,000 SEC
2021   Q3 107,928 1.03 $71.13 $7,677,000 SEC
2021   Q2 107,928 1.03 $71.81 $7,750,000 SEC
2021   Q1 107,928 1.07 $74.89 $8,083,000 SEC
2020   Q4 107,928 1.05 Add 43.22% 0.32 $69.36 $7,486,000 SEC
2020   Q3 75,356 0.54 Add 23.24% 0.10 $51.83 $3,906,000 SEC
2020   Q2 61,148 0.51 $59.38 $3,631,000 SEC
2020   Q1 61,148 0.44 $48.26 $2,951,000 SEC
2019   Q4 61,148 0.43 $71.89 $4,396,000 SEC
2019   Q3 61,148 0.39 Reduce 44.85% 0.27 $70.63 $4,319,000 SEC
2019   Q2 110,885 0.61 $66.05 $7,324,000 SEC
2019   Q1 110,885 0.62 $72.10 $7,995,000 SEC
2018   Q4 110,885 0.56 Reduce 11.31% 0.06 $62.31 $6,909,000 SEC
2018   Q3 125,024 0.49 $69.35 $8,671,000 SEC
2018   Q2 125,024 0.42 Add 20.36% 0.07 $68.36 $8,547,000 SEC
2018   Q1 103,872 0.38 $72.64 $7,545,000 SEC
2017   Q4 103,872 0.35 Add 11.64% 0.04 $70.08 $7,279,000 SEC
2017   Q3 93,046 0.28 $65.73 $6,116,000 SEC
2017   Q2 93,046 0.27 Reduce 6.06% 0.02 $64.25 $5,978,000 SEC
2017   Q1 99,046 0.32 Reduce 2.86% <0.01 $69.70 $6,904,000 SEC
2016   Q4 101,963 0.34 Reduce 0.39% <0.01 $71.78 $7,319,000 SEC
2016   Q3 102,362 0.26 $54.89 $5,619,000 SEC
2016   Q2 102,362 0.24 $50.99 $5,219,000 SEC
2016   Q1 102,362 0.19 Reduce 17.24% 0.03 $46.39 $4,749,000 SEC
2015   Q4 123,681 0.20 Reduce 16.67% 0.03 $47.86 $5,919,000 SEC
2015   Q3 148,415 0.20 Reduce 12.73% 0.03 $49.11 $7,289,000 SEC
2015   Q2 170,057 0.26 $57.74 $9,819,000 SEC
2015   Q1 170,057 0.24 Add 0.05% <0.01 $52.48 $8,925,000 SEC
2014   Q4 169,968 0.25 Reduce 68.08% 0.46 $55.36 $9,409,000 SEC
2014   Q3 532,553 0.68 $57.17 $30,446,000 SEC
2014   Q2 532,553 0.68 Add 63.67% 0.26 $62.60 $33,338,000 SEC
2014   Q1 325,374 0.44 Buy 0.44 $66.15 $21,523,000 SEC