TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2025

Shares 50,593 Value ($000) $1,697 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 999,369 Value ($000) $33,359 Avg Close $36.35 Range $32.91 - $38.66

Q2 2025

Shares 2,873,560 Value ($000) $103,333 Avg Close $33.29 Range $27.27 - $36.67

Q1 2025

Shares 2,203,319 Value ($000) $64,447 Avg Close $33.56 Range $28.17 - $42.98

Q4 2024

Shares 647,786 Value ($000) $25,808 Avg Close $44.89 Range $39.19 - $51.20

Q3 2024

Shares 465,447 Value ($000) $21,950 Avg Close $44.50 Range $39.43 - $48.26

Q2 2024

Shares 164,537 Value ($000) $33,645 Avg Close $40.77 Range $36.50 - $44.28

Q1 2024

Shares 182,564 Value ($000) $33,721 Avg Close $34.64 Range $31.61 - $38.03

Q4 2023

Shares 282,116 Value ($000) $47,094 Avg Close $31.93 Range $28.67 - $33.99

Q3 2023

Shares 78,159 Value ($000) $11,883 Avg Close $32.50 Range $30.19 - $34.65

Q2 2023

Shares 5,693 Value ($000) $932 Avg Close $29.41 Range $26.46 - $33.10

Q1 2023

Shares 12,485 Value ($000) $1,834 Avg Close $28.89 Range $26.24 - $31.92

Q4 2022

Shares 127,193 Value ($000) $18,467 Avg Close $28.91 Range $24.57 - $33.93

Q3 2022

Shares 147,055 Value ($000) $18,901 Avg Close $27.98 Range $24.84 - $31.09

Q2 2022

Shares 82,324 Value ($000) $11,241 Avg Close $27.42 Range $23.71 - $33.82

Q1 2022

Shares 19,419 Value ($000) $3,203 Avg Close $30.77 Range $25.33 - $35.29

Q4 2021

Shares 89,406 Value ($000) $15,181 Avg Close $34.44 Range $29.39 - $38.58

Q2 2021

Shares 75,072 Value ($000) $9,162 Avg Close $25.16 Range $23.20 - $28.95

Q1 2021

Shares 16,035 Value ($000) $2,176 Avg Close $26.50 Range $22.63 - $28.94

Q4 2020

Shares 98,820 Value ($000) $11,441 Avg Close $22.53 Range $19.06 - $25.44

Q1 2020

Shares 77,733 Value ($000) $5,490 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 52,939 Value ($000) $4,561 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 4,170 Value ($000) $362 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 13,424 Value ($000) $1,054 Avg Close $13.48 Range $11.77 - $15.78

Q1 2019

Shares 90,509 Value ($000) $5,393 Avg Close $11.21 Range $9.70 - $12.25

Q4 2018

Shares 99,210 Value ($000) $5,136 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 44,234 Value ($000) $3,021 Avg Close $13.24 Range $11.60 - $14.44

Q1 2018

Shares 16,900 Value ($000) $827 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 10,442 Value ($000) $503 Avg Close $9.70 Range $9.21 - $10.18

Q3 2016

Shares 54,516 Value ($000) $1,933 Avg Close $6.78 Range $6.02 - $7.25

Q2 2016

Shares 170,362 Value ($000) $5,238 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 131,693 Value ($000) $3,927 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 27,346 Value ($000) $711 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 24,731 Value ($000) $601 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 2,355 Value ($000) $60 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 9,746 Value ($000) $234 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 15,427 Value ($000) $412 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 58,252 Value ($000) $1,455 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 114,042 Value ($000) $3,137 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 21,845 Value ($000) $646 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 19,042 Value ($000) $533 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 6,320 Value ($000) $164 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 161,518 Value ($000) $3,798 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	50,593	$1,697	$33.82	$31.18 - $37.75
Q3 2025	999,369	$33,359	$36.35	$32.91 - $38.66
Q2 2025	2,873,560	$103,333	$33.29	$27.27 - $36.67
Q1 2025	2,203,319	$64,447	$33.56	$28.17 - $42.98
Q4 2024	647,786	$25,808	$44.89	$39.19 - $51.20
Q3 2024	465,447	$21,950	$44.50	$39.43 - $48.26
Q2 2024	164,537	$33,645	$40.77	$36.50 - $44.28
Q1 2024	182,564	$33,721	$34.64	$31.61 - $38.03
Q4 2023	282,116	$47,094	$31.93	$28.67 - $33.99
Q3 2023	78,159	$11,883	$32.50	$30.19 - $34.65
Q2 2023	5,693	$932	$29.41	$26.46 - $33.10
Q1 2023	12,485	$1,834	$28.89	$26.24 - $31.92
Q4 2022	127,193	$18,467	$28.91	$24.57 - $33.93
Q3 2022	147,055	$18,901	$27.98	$24.84 - $31.09
Q2 2022	82,324	$11,241	$27.42	$23.71 - $33.82
Q1 2022	19,419	$3,203	$30.77	$25.33 - $35.29
Q4 2021	89,406	$15,181	$34.44	$29.39 - $38.58
Q2 2021	75,072	$9,162	$25.16	$23.20 - $28.95
Q1 2021	16,035	$2,176	$26.50	$22.63 - $28.94
Q4 2020	98,820	$11,441	$22.53	$19.06 - $25.44
Q1 2020	77,733	$5,490	$17.03	$12.72 - $19.87
Q4 2019	52,939	$4,561	$17.32	$16.24 - $18.07
Q3 2019	4,170	$362	$16.34	$14.60 - $17.46
Q2 2019	13,424	$1,054	$13.48	$11.77 - $15.78
Q1 2019	90,509	$5,393	$11.21	$9.70 - $12.25
Q4 2018	99,210	$5,136	$12.40	$9.76 - $14.51
Q3 2018	44,234	$3,021	$13.24	$11.60 - $14.44
Q1 2018	16,900	$827	$9.88	$8.93 - $10.68
Q4 2017	10,442	$503	$9.70	$9.21 - $10.18
Q3 2016	54,516	$1,933	$6.78	$6.02 - $7.25
Q2 2016	170,362	$5,238	$5.98	$5.60 - $6.35
Q1 2016	131,693	$3,927	$5.32	$4.57 - $6.01
Q4 2015	27,346	$711	$5.34	$4.76 - $5.64
Q3 2015	24,731	$601	$5.12	$4.82 - $5.50
Q2 2015	2,355	$60	$5.12	$4.77 - $5.50
Q1 2015	9,746	$234	$4.94	$4.60 - $5.40
Q4 2014	15,427	$412	$5.23	$4.74 - $5.57
Q3 2014	58,252	$1,455	$5.21	$4.59 - $5.65
Q2 2014	114,042	$3,137	$5.47	$5.05 - $6.00
Q1 2014	21,845	$646	$5.82	$5.47 - $6.18
Q4 2013	19,042	$533	$5.40	$4.77 - $6.00
Q3 2013	6,320	$164	$4.79	$4.44 - $5.21
Q2 2013	161,518	$3,798	$5.31	$4.51 - $6.11