TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q4 2025

Shares 492,300 Value ($000) $16,512 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 485,400 Value ($000) $16,203 Avg Close $36.35 Range $32.91 - $38.66

Q2 2025

Shares 486,500 Value ($000) $17,495 Avg Close $33.29 Range $27.27 - $36.67

Q1 2025

Shares 519,200 Value ($000) $15,187 Avg Close $33.56 Range $28.17 - $42.98

Q4 2024

Shares 526,500 Value ($000) $20,976 Avg Close $44.89 Range $39.19 - $51.20

Q3 2024

Shares 522,500 Value ($000) $24,641 Avg Close $44.50 Range $39.43 - $48.26

Q2 2024

Shares 105,200 Value ($000) $21,511 Avg Close $40.77 Range $36.50 - $44.28

Q1 2024

Shares 105,100 Value ($000) $19,413 Avg Close $34.64 Range $31.61 - $38.03

Q4 2023

Shares 104,900 Value ($000) $17,511 Avg Close $31.93 Range $28.67 - $33.99

Q3 2023

Shares 117,000 Value ($000) $17,788 Avg Close $32.50 Range $30.19 - $34.65

Q2 2023

Shares 115,800 Value ($000) $18,961 Avg Close $29.41 Range $26.46 - $33.10

Q1 2023

Shares 114,400 Value ($000) $16,807 Avg Close $28.89 Range $26.24 - $31.92

Q4 2022

Shares 128,800 Value ($000) $18,700 Avg Close $28.91 Range $24.57 - $33.93

Q3 2022

Shares 127,400 Value ($000) $16,375 Avg Close $27.98 Range $24.84 - $31.09

Q2 2022

Shares 127,400 Value ($000) $17,396 Avg Close $27.42 Range $23.71 - $33.82

Q1 2022

Shares 127,400 Value ($000) $21,013 Avg Close $30.77 Range $25.33 - $35.29

Q4 2021

Shares 119,000 Value ($000) $20,206 Avg Close $34.44 Range $29.39 - $38.58

Q3 2021

Shares 119,700 Value ($000) $17,876 Avg Close $27.46 Range $24.08 - $30.91

Q2 2021

Shares 119,500 Value ($000) $14,584 Avg Close $25.16 Range $23.20 - $28.95

Q1 2021

Shares 122,900 Value ($000) $16,680 Avg Close $26.50 Range $22.63 - $28.94

Q4 2020

Shares 121,800 Value ($000) $14,102 Avg Close $22.53 Range $19.06 - $25.44

Q3 2020

Shares 122,400 Value ($000) $11,689 Avg Close $17.77 Range $14.99 - $19.31

Q2 2020

Shares 122,100 Value ($000) $9,661 Avg Close $15.19 Range $12.93 - $17.00

Q1 2020

Shares 105,900 Value ($000) $7,479 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 104,500 Value ($000) $9,004 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 103,300 Value ($000) $8,962 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 102,700 Value ($000) $8,067 Avg Close $13.48 Range $11.77 - $15.78

Q1 2019

Shares 100,800 Value ($000) $6,007 Avg Close $11.21 Range $9.70 - $12.25

Q4 2018

Shares 98,200 Value ($000) $5,084 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 98,200 Value ($000) $6,707 Avg Close $13.24 Range $11.60 - $14.44

Q2 2018

Shares 98,200 Value ($000) $5,745 Avg Close $10.68 Range $9.26 - $11.77

Q1 2018

Shares 98,200 Value ($000) $4,807 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 96,200 Value ($000) $4,632 Avg Close $9.70 Range $9.21 - $10.18

Q3 2017

Shares 96,200 Value ($000) $4,478 Avg Close $8.79 Range $7.99 - $9.67

Q2 2017

Shares 96,200 Value ($000) $4,401 Avg Close $8.91 Range $7.98 - $9.55

Q1 2017

Shares 94,400 Value ($000) $3,856 Avg Close $8.29 Range $7.77 - $8.97

Q4 2016

Shares 94,400 Value ($000) $4,073 Avg Close $8.08 Range $6.96 - $8.86

Q3 2016

Shares 92,900 Value ($000) $3,295 Avg Close $6.78 Range $6.02 - $7.25

Q2 2016

Shares 97,400 Value ($000) $2,995 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 97,400 Value ($000) $2,804 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 79,500 Value ($000) $2,069 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 79,500 Value ($000) $1,933 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 70,900 Value ($000) $1,818 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 70,900 Value ($000) $1,703 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 70,900 Value ($000) $1,893 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 69,900 Value ($000) $1,746 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 70,800 Value ($000) $1,947 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 70,800 Value ($000) $2,095 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 55,100 Value ($000) $1,542 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 55,100 Value ($000) $1,427 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 57,900 Value ($000) $1,361 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	492,300	$16,512	$33.82	$31.18 - $37.75
Q3 2025	485,400	$16,203	$36.35	$32.91 - $38.66
Q2 2025	486,500	$17,495	$33.29	$27.27 - $36.67
Q1 2025	519,200	$15,187	$33.56	$28.17 - $42.98
Q4 2024	526,500	$20,976	$44.89	$39.19 - $51.20
Q3 2024	522,500	$24,641	$44.50	$39.43 - $48.26
Q2 2024	105,200	$21,511	$40.77	$36.50 - $44.28
Q1 2024	105,100	$19,413	$34.64	$31.61 - $38.03
Q4 2023	104,900	$17,511	$31.93	$28.67 - $33.99
Q3 2023	117,000	$17,788	$32.50	$30.19 - $34.65
Q2 2023	115,800	$18,961	$29.41	$26.46 - $33.10
Q1 2023	114,400	$16,807	$28.89	$26.24 - $31.92
Q4 2022	128,800	$18,700	$28.91	$24.57 - $33.93
Q3 2022	127,400	$16,375	$27.98	$24.84 - $31.09
Q2 2022	127,400	$17,396	$27.42	$23.71 - $33.82
Q1 2022	127,400	$21,013	$30.77	$25.33 - $35.29
Q4 2021	119,000	$20,206	$34.44	$29.39 - $38.58
Q3 2021	119,700	$17,876	$27.46	$24.08 - $30.91
Q2 2021	119,500	$14,584	$25.16	$23.20 - $28.95
Q1 2021	122,900	$16,680	$26.50	$22.63 - $28.94
Q4 2020	121,800	$14,102	$22.53	$19.06 - $25.44
Q3 2020	122,400	$11,689	$17.77	$14.99 - $19.31
Q2 2020	122,100	$9,661	$15.19	$12.93 - $17.00
Q1 2020	105,900	$7,479	$17.03	$12.72 - $19.87
Q4 2019	104,500	$9,004	$17.32	$16.24 - $18.07
Q3 2019	103,300	$8,962	$16.34	$14.60 - $17.46
Q2 2019	102,700	$8,067	$13.48	$11.77 - $15.78
Q1 2019	100,800	$6,007	$11.21	$9.70 - $12.25
Q4 2018	98,200	$5,084	$12.40	$9.76 - $14.51
Q3 2018	98,200	$6,707	$13.24	$11.60 - $14.44
Q2 2018	98,200	$5,745	$10.68	$9.26 - $11.77
Q1 2018	98,200	$4,807	$9.88	$8.93 - $10.68
Q4 2017	96,200	$4,632	$9.70	$9.21 - $10.18
Q3 2017	96,200	$4,478	$8.79	$7.99 - $9.67
Q2 2017	96,200	$4,401	$8.91	$7.98 - $9.55
Q1 2017	94,400	$3,856	$8.29	$7.77 - $8.97
Q4 2016	94,400	$4,073	$8.08	$6.96 - $8.86
Q3 2016	92,900	$3,295	$6.78	$6.02 - $7.25
Q2 2016	97,400	$2,995	$5.98	$5.60 - $6.35
Q1 2016	97,400	$2,804	$5.32	$4.57 - $6.01
Q4 2015	79,500	$2,069	$5.34	$4.76 - $5.64
Q3 2015	79,500	$1,933	$5.12	$4.82 - $5.50
Q2 2015	70,900	$1,818	$5.12	$4.77 - $5.50
Q1 2015	70,900	$1,703	$4.94	$4.60 - $5.40
Q4 2014	70,900	$1,893	$5.23	$4.74 - $5.57
Q3 2014	69,900	$1,746	$5.21	$4.59 - $5.65
Q2 2014	70,800	$1,947	$5.47	$5.05 - $6.00
Q1 2014	70,800	$2,095	$5.82	$5.47 - $6.18
Q4 2013	55,100	$1,542	$5.40	$4.77 - $6.00
Q3 2013	55,100	$1,427	$4.79	$4.44 - $5.21
Q2 2013	57,900	$1,361	$5.31	$4.51 - $6.11