TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

MORGAN STANLEY's Holding History (CIK: 0000895421)

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

Q4 2025

Shares 2,320,740 Value ($000) $77,838 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 2,381,396 Value ($000) $79,491 Avg Close $36.35 Range $32.91 - $38.66

Q2 2025

Shares 2,694,666 Value ($000) $96,900 Avg Close $33.29 Range $27.27 - $36.67

Q1 2025

Shares 3,030,992 Value ($000) $88,657 Avg Close $33.56 Range $28.17 - $42.98

Q4 2024

Shares 2,335,231 Value ($000) $93,036 Avg Close $44.89 Range $39.19 - $51.20

Q3 2024

Shares 2,325,587 Value ($000) $109,675 Avg Close $44.50 Range $39.43 - $48.26

Q2 2024

Shares 536,898 Value ($000) $109,785 Avg Close $40.77 Range $36.50 - $44.28

Q1 2024

Shares 537,737 Value ($000) $99,326 Avg Close $34.64 Range $31.61 - $38.03

Q4 2023

Shares 679,192 Value ($000) $113,378 Avg Close $31.93 Range $28.67 - $33.99

Q3 2023

Shares 616,768 Value ($000) $93,768 Avg Close $32.50 Range $30.19 - $34.65

Q2 2023

Shares 582,509 Value ($000) $95,380 Avg Close $29.41 Range $26.46 - $33.10

Q1 2023

Shares 591,162 Value ($000) $86,848 Avg Close $28.89 Range $26.24 - $31.92

Q4 2022

Shares 602,765 Value ($000) $87,516 Avg Close $28.91 Range $24.57 - $33.93

Q3 2022

Shares 359,453 Value ($000) $46,199 Avg Close $27.98 Range $24.84 - $31.09

Q2 2022

Shares 381,483 Value ($000) $52,092 Avg Close $27.42 Range $23.71 - $33.82

Q1 2022

Shares 189,560 Value ($000) $31,265 Avg Close $30.77 Range $25.33 - $35.29

Q4 2021

Shares 233,220 Value ($000) $39,601 Avg Close $34.44 Range $29.39 - $38.58

Q3 2021

Shares 215,622 Value ($000) $32,201 Avg Close $27.46 Range $24.08 - $30.91

Q2 2021

Shares 253,014 Value ($000) $30,878 Avg Close $25.16 Range $23.20 - $28.95

Q1 2021

Shares 214,161 Value ($000) $29,065 Avg Close $26.50 Range $22.63 - $28.94

Q4 2020

Shares 338,435 Value ($000) $39,185 Avg Close $22.53 Range $19.06 - $25.44

Q3 2020

Shares 119,430 Value ($000) $11,406 Avg Close $17.77 Range $14.99 - $19.31

Q2 2020

Shares 143,791 Value ($000) $11,377 Avg Close $15.19 Range $12.93 - $17.00

Q1 2020

Shares 175,095 Value ($000) $12,365 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 289,932 Value ($000) $24,980 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 178,355 Value ($000) $15,474 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 368,004 Value ($000) $28,908 Avg Close $13.48 Range $11.77 - $15.78

Q1 2019

Shares 256,756 Value ($000) $15,300 Avg Close $11.21 Range $9.70 - $12.25

Q4 2018

Shares 643,161 Value ($000) $33,296 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 520,396 Value ($000) $35,544 Avg Close $13.24 Range $11.60 - $14.44

Q2 2018

Shares 342,890 Value ($000) $20,060 Avg Close $10.68 Range $9.26 - $11.77

Q1 2018

Shares 362,098 Value ($000) $17,724 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 335,200 Value ($000) $16,140 Avg Close $9.70 Range $9.21 - $10.18

Q3 2017

Shares 225,533 Value ($000) $10,498 Avg Close $8.79 Range $7.99 - $9.67

Q2 2017

Shares 266,219 Value ($000) $12,179 Avg Close $8.91 Range $7.98 - $9.55

Q1 2017

Shares 352,787 Value ($000) $14,411 Avg Close $8.29 Range $7.77 - $8.97

Q4 2016

Shares 376,131 Value ($000) $16,230 Avg Close $8.08 Range $6.96 - $8.86

Q3 2016

Shares 289,042 Value ($000) $10,252 Avg Close $6.78 Range $6.02 - $7.25

Q2 2016

Shares 223,117 Value ($000) $6,859 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 529,677 Value ($000) $15,795 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 371,728 Value ($000) $9,672 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 545,458 Value ($000) $13,260 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 257,192 Value ($000) $6,595 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 408,541 Value ($000) $9,813 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 202,734 Value ($000) $5,413 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 157,933 Value ($000) $3,944 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 155,683 Value ($000) $4,281 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 199,499 Value ($000) $5,903 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 207,847 Value ($000) $5,815 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 53,403 Value ($000) $1,382 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 63,673 Value ($000) $1,497 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,320,740	$77,838	$33.82	$31.18 - $37.75
Q3 2025	2,381,396	$79,491	$36.35	$32.91 - $38.66
Q2 2025	2,694,666	$96,900	$33.29	$27.27 - $36.67
Q1 2025	3,030,992	$88,657	$33.56	$28.17 - $42.98
Q4 2024	2,335,231	$93,036	$44.89	$39.19 - $51.20
Q3 2024	2,325,587	$109,675	$44.50	$39.43 - $48.26
Q2 2024	536,898	$109,785	$40.77	$36.50 - $44.28
Q1 2024	537,737	$99,326	$34.64	$31.61 - $38.03
Q4 2023	679,192	$113,378	$31.93	$28.67 - $33.99
Q3 2023	616,768	$93,768	$32.50	$30.19 - $34.65
Q2 2023	582,509	$95,380	$29.41	$26.46 - $33.10
Q1 2023	591,162	$86,848	$28.89	$26.24 - $31.92
Q4 2022	602,765	$87,516	$28.91	$24.57 - $33.93
Q3 2022	359,453	$46,199	$27.98	$24.84 - $31.09
Q2 2022	381,483	$52,092	$27.42	$23.71 - $33.82
Q1 2022	189,560	$31,265	$30.77	$25.33 - $35.29
Q4 2021	233,220	$39,601	$34.44	$29.39 - $38.58
Q3 2021	215,622	$32,201	$27.46	$24.08 - $30.91
Q2 2021	253,014	$30,878	$25.16	$23.20 - $28.95
Q1 2021	214,161	$29,065	$26.50	$22.63 - $28.94
Q4 2020	338,435	$39,185	$22.53	$19.06 - $25.44
Q3 2020	119,430	$11,406	$17.77	$14.99 - $19.31
Q2 2020	143,791	$11,377	$15.19	$12.93 - $17.00
Q1 2020	175,095	$12,365	$17.03	$12.72 - $19.87
Q4 2019	289,932	$24,980	$17.32	$16.24 - $18.07
Q3 2019	178,355	$15,474	$16.34	$14.60 - $17.46
Q2 2019	368,004	$28,908	$13.48	$11.77 - $15.78
Q1 2019	256,756	$15,300	$11.21	$9.70 - $12.25
Q4 2018	643,161	$33,296	$12.40	$9.76 - $14.51
Q3 2018	520,396	$35,544	$13.24	$11.60 - $14.44
Q2 2018	342,890	$20,060	$10.68	$9.26 - $11.77
Q1 2018	362,098	$17,724	$9.88	$8.93 - $10.68
Q4 2017	335,200	$16,140	$9.70	$9.21 - $10.18
Q3 2017	225,533	$10,498	$8.79	$7.99 - $9.67
Q2 2017	266,219	$12,179	$8.91	$7.98 - $9.55
Q1 2017	352,787	$14,411	$8.29	$7.77 - $8.97
Q4 2016	376,131	$16,230	$8.08	$6.96 - $8.86
Q3 2016	289,042	$10,252	$6.78	$6.02 - $7.25
Q2 2016	223,117	$6,859	$5.98	$5.60 - $6.35
Q1 2016	529,677	$15,795	$5.32	$4.57 - $6.01
Q4 2015	371,728	$9,672	$5.34	$4.76 - $5.64
Q3 2015	545,458	$13,260	$5.12	$4.82 - $5.50
Q2 2015	257,192	$6,595	$5.12	$4.77 - $5.50
Q1 2015	408,541	$9,813	$4.94	$4.60 - $5.40
Q4 2014	202,734	$5,413	$5.23	$4.74 - $5.57
Q3 2014	157,933	$3,944	$5.21	$4.59 - $5.65
Q2 2014	155,683	$4,281	$5.47	$5.05 - $6.00
Q1 2014	199,499	$5,903	$5.82	$5.47 - $6.18
Q4 2013	207,847	$5,815	$5.40	$4.77 - $6.00
Q3 2013	53,403	$1,382	$4.79	$4.44 - $5.21
Q2 2013	63,673	$1,497	$5.31	$4.51 - $6.11