-----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, A4aY5iZ8ZwuHpxKnoivbkteKmoDnAxBLT/3kgsESomyg6MFfv2EyHJu3IUWb75ml DcYBCq9fXiMZGZtaHaIuHg== 0001057439-98-000018.txt : 19980317 0001057439-98-000018.hdr.sgml : 19980317 ACCESSION NUMBER: 0001057439-98-000018 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19980313 SROS: NASD SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: CALPINE CORP CENTRAL INDEX KEY: 0000916457 STANDARD INDUSTRIAL CLASSIFICATION: COGENERATION SERVICES & SMALL POWER PRODUCERS [4991] IRS NUMBER: 770031605 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: SEC FILE NUMBER: 005-48317 FILM NUMBER: 98564963 BUSINESS ADDRESS: STREET 1: 50 WEST SAN FERNANDO ST CITY: SAN JOSE STATE: CA ZIP: 95113 BUSINESS PHONE: 4089955115 MAIL ADDRESS: STREET 1: 50 W SAN FERNANDO STREET 2: SUITE 500 CITY: SAN JOSE STATE: CA ZIP: 95113 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: THOMSON HORSTMANN & BRYANT INC CENTRAL INDEX KEY: 0001057439 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 133163794 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: PARK 80 WEST PLAZA TWO CITY: SADDU BROOK STATE: NJ ZIP: 07663 BUSINESS PHONE: 2013682770 MAIL ADDRESS: STREET 1: PARK 80 WEST PLAZA TWO CITY: SADDU BROOK STATE: NJ ZIP: 07663 SC 13G 1 CALPINE CORP. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* (Name of Issuer) Calpine Corp. (Title of Class of Securities) Common Stock (CUSIP Number) 131347106 Check the following box if a fee is being paid with this statement. (A fee is not required only if the filing person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7). *The remainder of this cover page shall be filled out for a reporting persons 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). 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF PERSON THOMSON HORSTMANN & BRYANT, INC. 22-3508647 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* N/A 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION A NEW YORK CORPORATION SADDLE BROOK, NJ 07663 5 SOLE VOTING POWER 645,300 6 SHARED VOTING POWER 14,700 7 SOLE DISPOSITIVE POWER 1,021,000 8 SHARED DISPOSITIVE POWER NONE 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,021,000 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 5.10% 12 TYPE OF REPORTING PERSON * IA ITEM 1. (A) CALPINE CORP (B) 50 WEST SAN FERNANDO ST., STE 500, SAN JOSE, CA 95113 ITEM 2. (A) THOMSON HORSTMANN & BRYANT, INC. (B) PARK 80 WEST, PLAZA TWO, SADDLE BROOK, NJ 07663 (C) A NEW YORK CORPORATION (D) COMMON (E) 131347106 ITEM 3. (E) INVESTMENT ADVISER REGISTERED UNDER SECTION 203 OF THE INVESTMENT ADVISERS ACT OF 1940 ITEM 4. (A) 1,021,000 (B) 5.10% (C) (I) 645,300 (II) 14,700 (III)1,021,000 (IV) NONE ITEM 5. N/A ITEM 6. N/A ITEM 7. N/A ITEM 8. N/A ITEM 9. 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 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 purposes 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. Richard A. Horstmann, VP Date: 1/27/98 -----END PRIVACY-ENHANCED MESSAGE-----