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  Tetra Tech, Inc. (TTEK)
← All TTEK superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2019   Q1 0 0.00 Sell 100.00% 0.51 $9.70–12.25 · VW $11.26i SEC
2018   Q4 598,985 0.51 Reduce 9.02% 0.05 $9.76–14.51 · VW $12.20i $6,202,000 SEC
2018   Q3 658,365 0.51 Reduce 0.05% <0.01 $11.60–14.44 · VW $13.22i $8,994,000 SEC
2018   Q2 658,665 0.38 Add 0.22% <0.01 $9.26–11.77 · VW $10.63i $7,707,000 SEC
2018   Q1 657,220 0.33 $9.79 $6,435,000 SEC
2017   Q4 657,220 0.30 $9.63 $6,330,000 SEC
2017   Q3 657,220 0.28 $9.31 $6,119,000 SEC
2017   Q2 657,220 0.27 Reduce 11.93% 0.03 $7.98–9.55 · VW $9.00i $6,014,000 SEC
2017   Q1 746,220 0.28 $8.17 $6,097,000 SEC
2016   Q4 746,220 0.30 Reduce 0.43% <0.01 $6.96–8.86 · VW $8.15i $6,440,000 SEC
2016   Q3 749,455 0.25 Add 0.04% <0.01 $6.02–7.25 · VW $6.83i $5,317,000 SEC
2016   Q2 749,180 0.21 Reduce 44.54% 0.14 $5.60–6.35 · VW $6.00i $4,607,000 SEC
2016   Q1 1,350,825 0.32 Add 0.03% <0.01 $4.57–6.01 · VW $5.41i $8,056,000 SEC
2015   Q4 1,350,375 0.23 Reduce 22.10% 0.05 $4.76–5.64 · VW $5.31i $7,027,000 SEC
2015   Q3 1,733,580 0.24 Reduce 15.18% 0.04 $4.82–5.50 · VW $5.13i $8,429,000 SEC
2015   Q2 2,043,765 0.27 $5.13 $10,480,000 SEC
2015   Q1 2,043,765 0.26 Add 0.02% <0.01 $4.60–5.40 · VW $4.91i $9,818,000 SEC
2014   Q4 2,043,325 0.29 Reduce 67.00% 0.46 $4.74–5.57 · VW $5.25i $10,911,000 SEC
2014   Q3 6,191,255 0.69 $5.00 $30,932,000 SEC
2014   Q2 6,191,255 0.70 Reduce 12.87% 0.11 $5.05–6.00 · VW $5.47i $34,052,000 SEC
2014   Q1 7,105,360 0.86 $5.92 $42,050,000 SEC
2013   Q4 7,105,360 0.77 Add 10.95% 0.08 $4.77–6.00 · VW $5.45i $39,762,000 SEC
2013   Q3 6,404,305 0.68 Add 38.14% 0.19 $4.44–5.21 · VW $4.78i $33,161,000 SEC
2013   Q2 4,635,990 0.46 Buy 0.46 $4.51–6.11 · VW $5.20i $21,798,000 SEC
Price snapshot:
Current price$31.17
52-week low$25.81
52-week high$42.96