TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

COMERICA BANK's Holding History (CIK: 0000901541)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 79,491 Value ($000) $2,666 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 84,045 Value ($000) $2,805 Avg Close $36.35 Range $32.91 - $38.66

Q2 2025

Shares 90,414 Value ($000) $3,251 Avg Close $33.29 Range $27.27 - $36.67

Q1 2025

Shares 96,098 Value ($000) $2,811 Avg Close $33.56 Range $28.17 - $42.98

Q4 2024

Shares 97,988 Value ($000) $3,904 Avg Close $44.89 Range $39.19 - $51.20

Q3 2024

Shares 104,753 Value ($000) $4,940 Avg Close $44.50 Range $39.43 - $48.26

Q2 2024

Shares 23,915 Value ($000) $4,890 Avg Close $40.77 Range $36.50 - $44.28

Q1 2024

Shares 25,418 Value ($000) $4,695 Avg Close $34.64 Range $31.61 - $38.03

Q4 2023

Shares 25,555 Value ($000) $4,266 Avg Close $31.93 Range $28.67 - $33.99

Q3 2023

Shares 25,714 Value ($000) $3,909 Avg Close $32.50 Range $30.19 - $34.65

Q2 2023

Shares 102,626 Value ($000) $0 Avg Close $29.41 Range $26.46 - $33.10

Q4 2022

Shares 24,983 Value ($000) $4 Avg Close $28.91 Range $24.57 - $33.93

Q3 2022

Shares 25,444 Value ($000) $3,416 Avg Close $27.98 Range $24.84 - $31.09

Q2 2022

Shares 26,509 Value ($000) $3,746 Avg Close $27.42 Range $23.71 - $33.82

Q1 2022

Shares 27,001 Value ($000) $4,140 Avg Close $30.77 Range $25.33 - $35.29

Q4 2021

Shares 26,108 Value ($000) $3,543 Avg Close $34.44 Range $29.39 - $38.58

Q3 2021

Shares 26,091 Value ($000) $4,337 Avg Close $27.46 Range $24.08 - $30.91

Q2 2021

Shares 31,265 Value ($000) $4,188 Avg Close $25.16 Range $23.20 - $28.95

Q1 2021

Shares 31,801 Value ($000) $4,259 Avg Close $26.50 Range $22.63 - $28.94

Q4 2020

Shares 33,486 Value ($000) $4,769 Avg Close $22.53 Range $19.06 - $25.44

Q3 2020

Shares 35,399 Value ($000) $3,771 Avg Close $17.77 Range $14.99 - $19.31

Q2 2020

Shares 35,867 Value ($000) $3,013 Avg Close $15.19 Range $12.93 - $17.00

Q1 2020

Shares 34,354 Value ($000) $2,570 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 35,048 Value ($000) $3,112 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 34,899 Value ($000) $3,061 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 55,539 Value ($000) $4,720 Avg Close $13.48 Range $11.77 - $15.78

Q1 2019

Shares 57,959 Value ($000) $3,554 Avg Close $11.21 Range $9.70 - $12.25

Q4 2018

Shares 54,167 Value ($000) $2,633 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 53,808 Value ($000) $3,552 Avg Close $13.24 Range $11.60 - $14.44

Q2 2018

Shares 59,003 Value ($000) $3,499 Avg Close $10.68 Range $9.26 - $11.77

Q1 2018

Shares 59,030 Value ($000) $3,075 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 57,566 Value ($000) $2,855 Avg Close $9.70 Range $9.21 - $10.18

Q3 2017

Shares 59,913 Value ($000) $2,909 Avg Close $8.79 Range $7.99 - $9.67

Q2 2017

Shares 60,332 Value ($000) $2,827 Avg Close $8.91 Range $7.98 - $9.55

Q1 2017

Shares 63,652 Value ($000) $2,836 Avg Close $8.29 Range $7.77 - $8.97

Q4 2016

Shares 60,759 Value ($000) $2,588 Avg Close $8.08 Range $6.96 - $8.86

Q3 2016

Shares 57,818 Value ($000) $2,085 Avg Close $6.78 Range $6.02 - $7.25

Q2 2016

Shares 57,867 Value ($000) $1,942 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 95,261 Value ($000) $2,854 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 156,554 Value ($000) $3,767 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 187,792 Value ($000) $4,565 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 386,290 Value ($000) $9,904 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 127,610 Value ($000) $3,065 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 121,472 Value ($000) $3,244 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 63,204 Value ($000) $1,579 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 121,489 Value ($000) $3,341 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 124,782 Value ($000) $3,692 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 126,264 Value ($000) $3,533 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 126,855 Value ($000) $3,285 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 97,274 Value ($000) $2,287 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	79,491	$2,666	$33.82	$31.18 - $37.75
Q3 2025	84,045	$2,805	$36.35	$32.91 - $38.66
Q2 2025	90,414	$3,251	$33.29	$27.27 - $36.67
Q1 2025	96,098	$2,811	$33.56	$28.17 - $42.98
Q4 2024	97,988	$3,904	$44.89	$39.19 - $51.20
Q3 2024	104,753	$4,940	$44.50	$39.43 - $48.26
Q2 2024	23,915	$4,890	$40.77	$36.50 - $44.28
Q1 2024	25,418	$4,695	$34.64	$31.61 - $38.03
Q4 2023	25,555	$4,266	$31.93	$28.67 - $33.99
Q3 2023	25,714	$3,909	$32.50	$30.19 - $34.65
Q2 2023	102,626	$0	$29.41	$26.46 - $33.10
Q4 2022	24,983	$4	$28.91	$24.57 - $33.93
Q3 2022	25,444	$3,416	$27.98	$24.84 - $31.09
Q2 2022	26,509	$3,746	$27.42	$23.71 - $33.82
Q1 2022	27,001	$4,140	$30.77	$25.33 - $35.29
Q4 2021	26,108	$3,543	$34.44	$29.39 - $38.58
Q3 2021	26,091	$4,337	$27.46	$24.08 - $30.91
Q2 2021	31,265	$4,188	$25.16	$23.20 - $28.95
Q1 2021	31,801	$4,259	$26.50	$22.63 - $28.94
Q4 2020	33,486	$4,769	$22.53	$19.06 - $25.44
Q3 2020	35,399	$3,771	$17.77	$14.99 - $19.31
Q2 2020	35,867	$3,013	$15.19	$12.93 - $17.00
Q1 2020	34,354	$2,570	$17.03	$12.72 - $19.87
Q4 2019	35,048	$3,112	$17.32	$16.24 - $18.07
Q3 2019	34,899	$3,061	$16.34	$14.60 - $17.46
Q2 2019	55,539	$4,720	$13.48	$11.77 - $15.78
Q1 2019	57,959	$3,554	$11.21	$9.70 - $12.25
Q4 2018	54,167	$2,633	$12.40	$9.76 - $14.51
Q3 2018	53,808	$3,552	$13.24	$11.60 - $14.44
Q2 2018	59,003	$3,499	$10.68	$9.26 - $11.77
Q1 2018	59,030	$3,075	$9.88	$8.93 - $10.68
Q4 2017	57,566	$2,855	$9.70	$9.21 - $10.18
Q3 2017	59,913	$2,909	$8.79	$7.99 - $9.67
Q2 2017	60,332	$2,827	$8.91	$7.98 - $9.55
Q1 2017	63,652	$2,836	$8.29	$7.77 - $8.97
Q4 2016	60,759	$2,588	$8.08	$6.96 - $8.86
Q3 2016	57,818	$2,085	$6.78	$6.02 - $7.25
Q2 2016	57,867	$1,942	$5.98	$5.60 - $6.35
Q1 2016	95,261	$2,854	$5.32	$4.57 - $6.01
Q4 2015	156,554	$3,767	$5.34	$4.76 - $5.64
Q3 2015	187,792	$4,565	$5.12	$4.82 - $5.50
Q2 2015	386,290	$9,904	$5.12	$4.77 - $5.50
Q1 2015	127,610	$3,065	$4.94	$4.60 - $5.40
Q4 2014	121,472	$3,244	$5.23	$4.74 - $5.57
Q3 2014	63,204	$1,579	$5.21	$4.59 - $5.65
Q2 2014	121,489	$3,341	$5.47	$5.05 - $6.00
Q1 2014	124,782	$3,692	$5.82	$5.47 - $6.18
Q4 2013	126,264	$3,533	$5.40	$4.77 - $6.00
Q3 2013	126,855	$3,285	$4.79	$4.44 - $5.21
Q2 2013	97,274	$2,287	$5.31	$4.51 - $6.11