UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. __)*

Tetra Tech Inc
(Name of Issuer)


COMMON STOCK
(Title of Class of Securities)


88162G103
(CUSIP Number)


12/29/2023
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to*
which this Schedule is filed:
     ? Rule 13d-1(b)
     ? Rule 13d-1(c)
     ? Rule 13d-1(d)
* The remainder of this cover page shall be filled out for*
a reporting person?s initial filing on this form with
respect to the subject class of securities, and for any*
subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page*
shall not be deemed to be ?filed? for the
purpose of Section 18 of the Securities Exchange Act of 1934*
(?Act?) or otherwise subject to the liabilities
of that section of the Act but shall be subject to all*
other provisions of the Act (however, see the Notes).
















CUSIP No.

88162G103















1

NAMES OF REPORTING PERSONS

Pictet Asset Management SA

The reporting person disclaim beneficial ownership of*
the shares reported, which are owned of
record and beneficially by Pictet Asset Management SA.






2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)


(a)   ?


(b)   ?



3

SEC USE ONLY









4

CITIZENSHIP OR PLACE OF ORGANIZATION





Switzerland





5

SOLE VOTING POWER




NUMBER OF


2,789,702.00




SHARES
6

SHARED VOTING POWER
BENEFICIALLY



OWNED BY


0




EACH
7

SOLE DISPOSITIVE POWER
REPORTING



PERSON


2,789,702.00




WITH:
8

SHARED DISPOSITIVE POWER











9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON





2,789,702.00



10

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE INSTRUCTIONS)





?



11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)





5.2%



12

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)





Investment Advisor


Item 1(a) Name of issuer:
       Tetra Tech Inc
Item 1(b) Address of issuer's principal executive offices:
3475 East Foothill Boulevard
Pasadena, California 91107-6024, USA
2(a) Name of person filing:
Pictet Asset Management SA
2(b) Address or principal business office or, if none, residence:
60 Route des Acacias
1211 Geneva 73
Switzerland
2(c) Citizenship:
       Switzerland
2(d) Title of class of securities:
       Common Stock
2(e) CUSIP No.:
       88162G103
Item 3. If this statement is filed pursuant to 240.13d?1(b) or*
240.13d?2(b) or (c), check whether the
person filing is a:
(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c) [ ] Insurance company as defined in section*
3(a)(19) of the Act (15 U.S.C. 78c);
(d) [ ] Investment company registered under section 8 of*
the Investment Company Act of 1940 (15 U.S.C. 80a?8);
(e) [X] An investment adviser in accordance with 240.13d?1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in*
accordance with 240.13d?1(b)(1)(ii)(F);
(g) [ ] A parent holding company or control person in*
accordance with 240.13d?1(b)(1)(ii)(G);
(h) [ ] A savings associations as defined in Section 3(b) of the*
Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition*
of an investment company under section 3(c)(14)
of the Investment Company Act of 1940 (15 U.S.C. 80a?3);
(j) [ ] A non-U.S. institution in accordance with 240.13d?1(b)(1)(ii)(J);
(k) [ ] Group, in accordance with 240.13d?1(b)(1)(ii)(K).*
If filing as a non-U.S. institution in accordance
with 240.13d?1(b)(1)(ii)(J), please specify the type of institution: ____
Item 4. Ownership
Provide the following information regarding the aggregate*
number and percentage of the class of securities
of the issuer identified in Item 1.
(a) Amount beneficially owned: 2,789,702.00
(b) Percent of class: 5.2%
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote : 2,789,702.00
(ii) Shared power to vote or to direct the vote : 0
(iii) Sole power to dispose or to direct the disposition of : 2,789,702.00
(iv) Shared power to dispose or to direct the disposition of: 0
Instruction. For computations regarding securities which*
represent a right to acquire an underlying security
see 240.13d?3(d)(1).
Item 5. Ownership of 5 Percent or Less of a Class.*
If this statement is being filed to report the fact that as of
the date hereof the reporting person has ceased to be*
 the beneficial owner of more than 5 percent of the
class of securities, check the following [  ].
Instruction. Dissolution of a group requires a response to this item.
Item 6. Ownership of More than 5 Percent on Behalf*
of Another Person. If any other person is known to
have the right to receive or the power to direct*
the receipt of dividends from, or the proceeds from the sale
of, such securities, a statement to that effect should*
be included in response to this item and, if such interest
relates to more than 5 percent of the class, such person*
should be identified. A listing of the shareholders of
an investment company registered under the Investment*
Company Act of 1940 or the beneficiaries of
employee benefit plan, pension fund or endowment fund is not required.
Item 7. Identification and Classification of the*
Subsidiary Which Acquired the Security Being Reported on
by the Parent Holding Company or Control Person.*
If a parent holding company or control person has filed
this schedule pursuant to Rule 13d?1(b)(1)(ii)(G),*
so indicate under Item 3(g) and attach an exhibit stating
the identity and the Item 3 classification of the relevant subsidiary.*
If a parent holding company or control
person has filed this schedule pursuant to Rule 13d?1(c)*
or Rule 13d?1(d), attach an exhibit stating the
identification of the relevant subsidiary.
Item 8. Identification and Classification of Members of the Group
If a group has filed this schedule pursuant to 240.13d?1(b)(1)(ii)(J),*
so indicate under Item 3(j) and attach
an exhibit stating the identity and Item 3 classification*
of each member of the group. If a group has filed
this schedule pursuant to Rule 13d?1(c) or Rule 13d?1(d),*
 attach an exhibit stating the identity of each
member of the group.
Item 9. Notice of Dissolution of Group. Notice of dissolution*
of a group may be furnished as an exhibit
stating the date of the dissolution and that all further filings*
with respect to transactions in the security
reported on will be filed, if required, by members of the group,*
in their individual capacity. See Item 5.
Item 10. Certifications
(a) The following certification shall be included if the*
statement is filed pursuant to 240.13d?1(b):
By signing below I certify that, to the best of my*
knowledge and belief, the securities referred to above
were acquired and are held in the ordinary course of*
business and were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control*
of the issuer of the securities and were
not acquired and are not held in connection with or as a participant*
in any transaction having that purpose
or effect.
(b) The following certification shall be included if the statement*
is filed pursuant to 240.13d?
1(b)(1)(ii)(J), or if the statement is filed pursuant to*
240.13d?1(b)(1)(ii)(K) and a member of the group is a
non-U.S. institution eligible to file pursuant to 240.13d?1(b)(1)(ii)(J):
By signing below I certify that, to the best of my*
knowledge and belief, the foreign regulatory scheme
applicable to [insert particular category of*
institutional investor] is substantially comparable to the*
regulatory scheme applicable to the functionally equivalent*
U.S. institution(s). I also undertake to furnish to*
the Commission staff, upon request, information that would otherwise*
be disclosed in a Schedule 13D.
(c) The following certification shall be included if*
the statement is filed pursuant to 240.13d?1(c):



SIGNATURE

	After reasonable inquiry and to the best of my knowledge and belief,*
I certify that the*
information set forth in this statement is true, complete and correct.


Date:	26th January 2024	By:





	Name: Mathieu CORNU
	Title: Head of Business Controlling

		By:





	Name: Youssef SAADI
	Title: Head of Investment Compliance