News + Filings Holdings
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FIRST WILSHIRE SECURITIES MANAGEMENT INC
> TTEK
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | TETRA TECH INC | TTEK | 4,800 | -100 | 786,000 | 75,000 | $163.75 |
| 12/31/2022 | TETRA TECH INC | TTEK | 4,900 | 0 | 711,000 | 81,000 | $145.10 |
| 09/30/2022 | TETRA TECH INC | TTEK | 4,900 | 0 | 630,000 | -39,000 | $128.57 |
| 06/30/2022 | TETRA TECH INC | TTEK | 4,900 | 0 | 669,000 | -139,000 | $136.53 |
| 03/31/2022 | TETRA TECH INC | TTEK | 4,900 | 0 | 808,000 | -24,000 | $164.90 |
| 12/31/2021 | TETRA TECH INC | TTEK | 4,900 | 0 | 832,000 | 234,000 | $169.80 |
| 06/30/2021 | TETRA TECH INC | TTEK | 4,900 | 500 | 598,000 | 1,000 | $122.04 |
| 03/31/2021 | TETRA TECH INC | TTEK | 4,400 | -47,272 | 597,000 | -5,386,000 | $135.68 |
| 12/31/2020 | TETRA TECH INC | TTEK | 51,672 | -2,764 | 5,983,000 | 1,676,000 | $115.79 |
| 06/30/2020 | TETRA TECH INC | TTEK | 54,436 | -4,883 | 4,307,000 | 118,000 | $79.12 |
| 03/31/2020 | TETRA TECH INC | TTEK | 59,319 | -77,160 | 4,189,000 | -7,570,000 | $70.62 |
| 12/31/2019 | TETRA TECH INC | TTEK | 136,479 | -3,741 | 11,759,000 | -407,000 | $86.16 |
| 09/30/2019 | TETRA TECH INC | TTEK | 140,220 | -56,580 | 12,166,000 | -3,293,000 | $86.76 |
| 06/30/2019 | TETRA TECH INC | TTEK | 196,800 | -20,804 | 15,459,000 | 2,492,000 | $78.55 |
| 03/31/2019 | TETRA TECH INC | TTEK | 217,604 | -4,821 | 12,967,000 | 1,452,000 | $59.59 |
| 12/31/2018 | TETRA TECH INC | TTEK | 222,425 | -3,343 | 11,515,000 | -3,905,000 | $51.77 |
| 09/30/2018 | TETRA TECH INC | TTEK | 225,768 | -3,404 | 15,420,000 | 2,013,000 | $68.30 |
| 06/30/2018 | TETRA TECH INC | TTEK | 229,172 | -5,491 | 13,407,000 | 1,920,000 | $58.50 |
| 03/31/2018 | TETRA TECH INC | TTEK | 234,663 | -6,562 | 11,487,000 | -128,000 | $48.95 |
| 12/31/2017 | TETRA TECH INC | TTEK | 241,225 | -4,070 | 11,615,000 | 197,000 | $48.15 |
| 09/30/2017 | TETRA TECH INC | TTEK | 245,295 | -4,985 | 11,418,000 | -32,000 | $46.55 |
| 06/30/2017 | TETRA TECH INC | TTEK | 250,280 | -10,800 | 11,450,000 | 785,000 | $45.75 |
| 03/31/2017 | TETRA TECH INC | TTEK | 261,080 | -2,010 | 10,665,000 | -687,000 | $40.85 |
| 12/31/2016 | TETRA TECH INC | TTEK | 263,090 | -8,997 | 11,352,000 | 1,701,000 | $43.15 |
| 09/30/2016 | TETRA TECH INC | TTEK | 272,087 | -2,575 | 9,651,000 | 1,207,000 | $35.47 |
| 06/30/2016 | TETRA TECH INC | TTEK | 274,662 | -1,025 | 8,444,000 | 223,000 | $30.74 |
| 03/31/2016 | TETRA TECH INC | TTEK | 275,687 | -87,415 | 8,221,000 | -1,089,000 | $29.82 |
| 12/31/2015 | TETRA TECH INC | TTEK | 336,537 | -13,640 | 8,757,000 | 244,000 | $26.02 |
| 09/30/2015 | TETRA TECH INC | TTEK | 350,177 | -12,925 | 8,513,000 | -797,000 | $24.31 |
| 06/30/2015 | TETRA TECH INC | TTEK | 363,102 | -39,724 | 9,310,000 | -366,000 | $25.64 |
| 03/31/2015 | TETRA TECH INC | TTEK | 402,826 | -11,713 | 9,676,000 | -1,392,000 | $24.02 |
| 12/31/2014 | TETRA TECH INC | TTEK | 414,539 | -6,205 | 11,068,000 | 558,000 | $26.70 |
| 09/30/2014 | TETRA TECH INC | TTEK | 420,744 | 420,744 | 10,510,000 | 10,510,000 | $24.98 |
| 06/30/2014 | TETRA TECH INC | TTEK | 333,304 | 12,483 | 9,166,000 | 189,000 | $27.50 |
| 03/31/2014 | TETRA TECH INC | TTEK | 320,821 | 0 | 9,493,000 | 516,000 | $29.59 |
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