-----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, QSP7AKUtGUYH8Il5M+scFklM6Dd9TVHLk6IR0nQcFP7aj7sAJYB2Of98WZ/MIFO3 iDRCpus+Z9X9DJ5B+SbMSg== 0000895421-98-000164.txt : 19980714 0000895421-98-000164.hdr.sgml : 19980714 ACCESSION NUMBER: 0000895421-98-000164 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 19980710 SROS: NYSE GROUP MEMBERS: MORGAN STANLEY DEAN WITTER & CO SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECHNOLOGIES INC CENTRAL INDEX KEY: 0000844965 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INORGANIC CHEMICALS [2810] IRS NUMBER: 742148293 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: SEC FILE NUMBER: 005-44995 FILM NUMBER: 98664053 BUSINESS ADDRESS: STREET 1: 25025 I-45N CITY: WOODLANDS STATE: TX ZIP: 77380 BUSINESS PHONE: 7133671983 MAIL ADDRESS: STREET 1: 25025 I-45 NORTH CITY: WOODLANDS STATE: TX ZIP: 77380 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MORGAN STANLEY DEAN WITTER & CO CENTRAL INDEX KEY: 0000895421 STANDARD INDUSTRIAL CLASSIFICATION: FINANCE SERVICES [6199] IRS NUMBER: 363145972 STATE OF INCORPORATION: DE FISCAL YEAR END: 1130 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 1585 BROADWAY CITY: NEW YORK STATE: NY ZIP: 10036 BUSINESS PHONE: 2123922222 MAIL ADDRESS: STREET 1: 1585 BROADWAY STREET 2: 38TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10036 FORMER COMPANY: FORMER CONFORMED NAME: DEAN WITTER DISCOVER & CO DATE OF NAME CHANGE: 19960315 SC 13G 1 AMENDMENT 13G FILING SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2 Under the Securities Exchange Act of 1934 (Amendment No. 1 ) Tetra Technologies Inc. ----------------------------------------------------- (Name of Issuer) Common Stock ----------------------------------------------------- (Title of Class of Securities) 88162F105 ----------------------------------------------------- (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. - ---------- *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.88162F105 13G Page 2 of 8 Pages - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON(S) S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON(S) Morgan Stanley Dean Witter & Co. IRS # 39-314-5972 - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION The state of organization is Delaware. - -------------------------------------------------------------------------------- NUMBER OF 5. SOLE VOTING POWER SHARES 0 BENEFICIALLY -------------------------------------------------------------- OWNED BY 6. SHARED VOTING POWER EACH 1,470,700 REPORTING -------------------------------------------------------------- PERSON 7. SOLE DISPOSITIVE POWER WITH 0 -------------------------------------------------------------- 8. SHARED DISPOSITIVE POWER 1,470,700 - -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,470,700 - -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.83% - -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IA, CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88162F105 13G Page 3 of 8 Pages - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON(S) S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON(S) Dean Witter InterCapital Inc. IRS # 13-3680016 - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION The state of organization is Delaware. - -------------------------------------------------------------------------------- NUMBER OF 5. SOLE VOTING POWER SHARES 0 BENEFICIALLY -------------------------------------------------------------- OWNED BY 6. SHARED VOTING POWER EACH 1,111,200 REPORTING -------------------------------------------------------------- PERSON 7. SOLE DISPOSITIVE POWER WITH 0 -------------------------------------------------------------- 8. SHARED DISPOSITIVE POWER 1,111,200 - -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,111,200 - -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 8.18% - -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IA, CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88162F105 13G Page 4 of 8 Pages Item 1. (a) Name of Issuer: Tetra Technologies Inc. -------------------------------------------------------------- (b) Address of Issuer's Principal Executive Offices: 25025 I-45 North Woodlands, TX 77380 -------------------------------------------------------------- Item 2. (a) Name of Person Filing: (a) Morgan Stanley Dean Witter & Co. (b) Dean Witter InterCapital Inc. -------------------------------------------------------------- (b) Address of Principal Business Office, or if None, Residence: (a) 1585 Broadway New York, New York 10036 (b) Two World Trade Center New York, New York 10048 -------------------------------------------------------------- (c) Citizenship: Incorporated by reference to Item 4 of the cover page pertaining to each reporting person. ------------------------------------------------- (d) Title of Class of Securities: Common Stock -------------------------------------------------------------- (e) CUSIP Number: 88162F105 ------------------------------------------------- Item 3. (a) Morgan Stanley Dean Witter & Co. is (e) an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. (b) Dean Witter InterCapital Inc.is (e) an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. CUSIP No.88162F105 13-G Page 5 of 8 Pages Item 4. Ownership. Incorporated by reference to Items (5) - (9) and (11) of the cover page. Item 5. Ownership of Five Percent or Less of a Class. Inapplicable Item 6. Ownership of More Than Five Percent on Behalf of Another Person. Accounts managed on a discretionary basis by Dean Witter InterCapital Inc., a wholly owned subsidiary of Morgan Stanley Dean Witter & Co., are 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. No such account holds more than 5 percent of the class. Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on By the Parent Holding Company. Item 8. Identification and Classification of Members of the Group. Item 9. Notice of Dissolution of Group. Item 10. Certification. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. CUSIP No.88162F105 13-G Page 6 of 8 Pages 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: July 10, 1998 Signature: /s/ Bruce Bromberg ----------------------------------------------------------------- Name/Title Bruce Bromberg / Vice President Morgan Stanley & Co. Incorporated ----------------------------------------------------------------- MORGAN STANLEY DEAN WITTER & CO. Date: July 10, 1998 Signature: /s/ Barry Fink ----------------------------------------------------------------- Name/Title Barry Fink / Senior Vice President Dean Witter InterCapital Inc. ----------------------------------------------------------------- DEAN WITTER INTERCAPITAL INC. INDEX TO EXHIBITS PAGE ----------------- ---- EXHIBIT 1 Agreement to Make a Joint Filing 7 EXHIBIT 2 Secretary's Certificate Authorizing Bruce Bromberg 8 to Sign on behalf of Morgan Stanley Dean Witter & Co. * Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001). (022597DTI) EX-99.1 2 JOINT FILING AGREEMENT Cusip No. 88162F105 13G Page 7 of 8 Pages EXHIBIT 1 TO SCHEDULE 13G ------------------------------------------------------------------ JULY 10, 1998 ------------------------------------------------------------------ MORGAN STANLEY DEAN WITTER & CO. AND DEAN WITTER INTERCAPITAL INC. hereby agree that, unless differentiated, this Schedule 13G is filed on behalf of each of the parties. MORGAN STANLEY DEAN WITTER & CO. BY: /s/ Bruce Bromberg --------------------------------------------------------------------- Bruce Bromberg / Vice President Morgan Stanley & Co., Incorporated DEAN WITTER INTERCAPITAL INC. BY: /s/ Barry Fink -------------------------------------------------------------------- Barry Fink / Senior Vice President Dean Witter InterCapital Inc. EX-99 3 SECRETARY'S CERTIFICATE Page 8 of 8 Pages EXHIBIT 1 ------------------ MORGAN STANLEY, DEAN WITTER, DISCOVER & CO. SECRETARY'S CERTIFICATE I, Charlene R. Herzer, a duly elected and acting Assistant Secretary of Morgan Stanley, Dean Witter, Discover & Co., a corporation organized and existing under the laws of the State of Delaware (the "Corporation"), certify that as approved by a Unanimous Consent of Directors in Lieu of a Meeting dated as of May 31, 1997, the following persons are each authorized to sign reports to be filed under Sections 13 and 16 of the Securities Exchange Act of 1934 on behalf of the Corporation, and such authorizations are in full force and effect as of this date: Stuart J.M. Breslow Robert G. Koppenol Bruce Bromberg Robin Sherak IN WITNESS WHEREOF, I have hereunto set my name and affixed the seal of the Corporation as of the 3rd day of June, 1997. /s/ Charlene R. Herzer ------------------------ Charlene R. Herzer Assistant Secretaty -----END PRIVACY-ENHANCED MESSAGE-----