-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, Usp1CcRcJlXug07sf+8y1s9IK4fAVTx77tzj3UpAgEDa64DQks7l0+xRxFNPIYH2 dZ6dpeOBVXsMisoeXX8LfA== 0000914208-11-000231.txt : 20110214 0000914208-11-000231.hdr.sgml : 20110214 20110214080447 ACCESSION NUMBER: 0000914208-11-000231 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20110214 DATE AS OF CHANGE: 20110214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECH INC CENTRAL INDEX KEY: 0000831641 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-ENGINEERING SERVICES [8711] IRS NUMBER: 954148514 STATE OF INCORPORATION: DE FISCAL YEAR END: 0928 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-43035 FILM NUMBER: 11602200 BUSINESS ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 BUSINESS PHONE: 6263514664 MAIL ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Invesco Ltd. CENTRAL INDEX KEY: 0000914208 STANDARD INDUSTRIAL CLASSIFICATION: INVESTMENT ADVICE [6282] IRS NUMBER: 980557567 STATE OF INCORPORATION: D0 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 1555 PEACHTREE STREET NE STREET 2: SUITE 1800 CITY: ATLANTA STATE: GA ZIP: 30309 BUSINESS PHONE: 404-892-0896 MAIL ADDRESS: STREET 1: 1555 PEACHTREE STREET NE STREET 2: SUITE 1800 CITY: ATLANTA STATE: GA ZIP: 30309 FORMER COMPANY: FORMER CONFORMED NAME: Invesco Ltd DATE OF NAME CHANGE: 20080508 FORMER COMPANY: FORMER CONFORMED NAME: Invesco PLC DATE OF NAME CHANGE: 20080429 FORMER COMPANY: FORMER CONFORMED NAME: Invesco Ltd. DATE OF NAME CHANGE: 20071205 SC 13G/A 1 tetratech123110.htm TETRA TECH, INC. tetratech123110.htm
 
 

 

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
SCHEDULE 13G/A
(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13D-1(b) AND
 AMENDMENTS FILED THERETO FILED PURSUANT TO RULE 13D-2(b)

Under the Securities Exchange Act of 1934
(Amendment No. 4)*
 
Tetra Tech, Inc.
(Name of Issuer)

Common Stock
(Title of Classes of Securities)
 
88162G103
(CUSIP Numbers)

December 31, 2010
(Date of Event Which Requires Filing of this Statement)
 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
 
: X       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
NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
 
Invesco Ltd.
IRS # 980557567
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a)
(b)
3
SEC USE ONLY
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
Invesco Ltd. – Bermuda
 
 
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5
SOLE VOTING POWER
 
Invesco PowerShares Capital Management – 2,918,102
Invesco Advisers, Inc. – 1,047,127
Van Kampen Asset Management  – 37,368
6
SHARED VOTING POWER
 
7
SOLE DISPOSITIVE POWER
 
Invesco PowerShares Capital Management – 2,918,102
Invesco Advisers, Inc. – 1,047,127
Van Kampen Asset Management  – 37,368
Stein Roe Investment Counsel, Inc. - 83
8
SHARED DISPOSITIVE POWER
 
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
4,050,923
10
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
 
N/A
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
 
6.6%
12
TYPE OF REPORTING PERSON*
 
See Item 3 of this statement

 
 

 

Item 1(a). Name of Issuer:
 
Tetra Tech, Inc.
 
(b). Address of Issuer’s Principal Executive Offices:
 
3475 East Foothill Boulevard; Pasadena, CA 91107-6024; United States
 
Item 2(a). Name of Person Filing:
 
Invesco Ltd.
 
(b). Address of Principal Business Office or, if none, residence of filing person:
 
1555 Peachtree Street NE; Atlanta, GA 30309; United States
 
(c). Citizenship of filing person:
 
Bermuda
 
(d). Title of Classes of Securities:
 
Common Stock .01 par value per share

(e). CUSIP Numbers:
 
88162G103

Item 3. If this Statement is Filed Pursuant to ss240.13d-1(b) or 240.13d-2(b) or (c), Check Whether the Person Filing is a:
 
(e) [x] An investment adviser in accordance with section 240.13d-1(b)(1)(ii)(E)

(g) [x] A parent holding company or control person in accordance with section 240.13d-1(b)(1)(ii)(G)

Item 4. Ownership:

Please see responses to Items 5-8 on the cover of this statement, which are incorporated herein by reference.

Item 5. Ownership of Five 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 five percent of the class of securities, check the following [ ]

Item 6. Ownership of More than Five Percent on Behalf of Another Person:

N/A


 
 

 

Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company:
 

The following subsidiaries of Invesco Ltd. are investment advisers which hold shares of the security being reported:
 
Invesco PowerShares Capital Management
Invesco Advisers, Inc.
Van Kampen Asset Management
Stein Roe Investment Counsel, Inc.

Item 8. Identification and Classification of Members of the Group:

N/A

Item 9. Notice of Dissolution of a Group:

N/A

Item 10. Certification:

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.

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.


02/07/2011
Date

Invesco Ltd.

By:           /s/ Lisa Brinkley
Lisa Brinkley
Global Assurance Officer

 
 

 

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