-----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, DIoxsY1Xy2pbdD7tmSHNdId7UJbFkFpSNZNhg5gwMdgaWeRV61SFxFFFdXJlToBX qGBkKF1CWIUKlUUsRnLH0Q== 0001047469-98-019420.txt : 19980513 0001047469-98-019420.hdr.sgml : 19980513 ACCESSION NUMBER: 0001047469-98-019420 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19980512 SROS: NASD SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MASTERING INC CENTRAL INDEX KEY: 0001006638 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-BUSINESS SERVICES, NEC [7389] IRS NUMBER: 841320277 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-46633 FILM NUMBER: 98616478 BUSINESS ADDRESS: STREET 1: 9201 EAST MOUNTAIN VIEW RD STREET 2: STE 200 CITY: SCOTTSDALE STATE: AZ ZIP: 85254 BUSINESS PHONE: 9708458300 MAIL ADDRESS: STREET 1: P O BOX 3600 CITY: AVON STATE: CO ZIP: 81620 FORMER COMPANY: FORMER CONFORMED NAME: EAGLE RIVER INTERACTIVE INC DATE OF NAME CHANGE: 19960129 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MONTGOMERY ASSET MANAGEMENT L P /CA CENTRAL INDEX KEY: 0000896160 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 943115321 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 600 MONTGOMERY STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94111 BUSINESS PHONE: 4156272400 MAIL ADDRESS: STREET 1: 600 MONTGOMERY ST CITY: SAN FRANCISCO STATE: CA ZIP: 94111 SC 13G/A 1 SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* ----- MASTERING, INC. - -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK - -------------------------------------------------------------------------------- (Title of Class of Securities) 576398101 ---------------------------------- (CUSIP Number) - -------------------------------------------------------------------------------- (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. 576398101 Page 2 of 5 --------- - ------------------------------------------------------------------------------- (1) Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). MONTGOMERY ASSET MANAGEMENT, LLC 94-3273703 - ------------------------------------------------------------------------------- (2) Check the Appropriate Box if a Member (a) / / of a Group (See Instructions) (b) / / - ------------------------------------------------------------------------------- (3) SEC Use Only - ------------------------------------------------------------------------------- (4) Citizenship or Place of Organization DELAWARE - ------------------------------------------------------------------------------- Number of Shares (5) Sole Voting Power Beneficially 0 (as of 4/30/98) Owned by -------------------------------------------------- Each Reporting (6) Shared Voting Power Person With: -0- -------------------------------------------------- (7) Sole Dispositive Power 0 (as of 4/30/98) -------------------------------------------------- (8) Shared Dispositive Power -0- - ------------------------------------------------------------------------------- (9) Aggregate Amount Beneficially Owned by Each Reporting Person 0 (as of 4/30/98) - ------------------------------------------------------------------------------- (10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) / / - ------------------------------------------------------------------------------- (11) Percent of Class Represented by Amount in Row (9) 0 (as of 4/30/98) - ------------------------------------------------------------------------------- (12) Type of Reporting Person (See Instructions) IA - ------------------------------------------------------------------------------- Page 3 of 5 ITEM 1. (a) Name of Issuer MASTERING, INC. --------------------------------------------------------------------- (b) Address of Issuer's Principal Executive Offices 1060 W. Beaver Creek Blvd, P.O. Box 3600, Avon, CO 81620 --------------------------------------------------------------------- ITEM 2. (a) Name of Person Filing MONTGOMERY ASSET MANAGEMENT, LLC --------------------------------------------------------------------- (b) Address of Principal Business Office or, if none, Residence 101 CALIFORNIA STREET, SAN FRANCISCO, CA 94111 --------------------------------------------------------------------- (c) Citizenship DELAWARE LIMITED LIABILITY COMPANY --------------------------------------------------------------------- (d) Title of Class of Securities Common Stock --------------------------------------------------------------------- (e) CUSIP Number 576398101 --------------------------------------------------------------------- ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 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/ Investment Adviser registered under section 203 of the Investment Advisers Act of 1940 (f) / / An employee benefit plan or endowment fund in accordance with section 240.13d-1(b)(1)(ii)(F). (g) / / A parent holding company or control person in accordance with section 240.13d-1(b)(1)(ii)(G). (h) / / A savings association 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) / / Group, in accordance with section 240.13d-1(b)(1)(ii)(J). Page 4 of 5 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: 0 (as of 4/30/98) --------------------------------------------------------------------------- (b) Percent of class: 0 (as of 4/30/98) --------------------------------------------------------------------------- (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote 0 (as of 4/30/98) ----------------------------------------------------------------- (ii) Shared power to vote or to direct the vote -0- ----------------------------------------------------------------- (iii) Sole power to dispose or to direct the disposition of 0 (as of 4/30/98) ----------------------------------------------------------------- (iv) Shared power to dispose or to direct the disposition of -0- ----------------------------------------------------------------- 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. /X/ ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON Not applicable ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY Not applicable Page 5 of 5 ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP Not applicable ITEM 9. NOTICE OF DISSOLUTION OF GROUP Not applicable ITEM 10. CERTIFICATION (a) The following certification shall be included if the statement is filed pursuant to section 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 section 240.13d-1(c): By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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. 5/8/98 ---------------------------------------- Date /s/ DANA SCHMIDT ---------------------------------------- Signature DANA SCHMIDT, CORP. VP & PRINCIPAL ---------------------------------------- Name/Title -----END PRIVACY-ENHANCED MESSAGE-----