-----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, U/aS6j7ggRgYdr264eb1N2bgZyqe0tviER31fpN2yslOYdE/KXZyj+Hn0Hz8w8oP Fw++DZSSWCe0GXQTNH5VRA== 0001303241-06-000011.txt : 20060215 0001303241-06-000011.hdr.sgml : 20060215 20060214180733 ACCESSION NUMBER: 0001303241-06-000011 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20060215 DATE AS OF CHANGE: 20060214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MCDATA CORP CENTRAL INDEX KEY: 0000731502 STANDARD INDUSTRIAL CLASSIFICATION: COMMUNICATIONS EQUIPMENT, NEC [3669] IRS NUMBER: 841421844 STATE OF INCORPORATION: DE FISCAL YEAR END: 0131 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-60177 FILM NUMBER: 06618436 BUSINESS ADDRESS: STREET 1: 380 INTERLOCKEN CRESCENT CITY: BROOMFIELD STATE: CO ZIP: 80021 BUSINESS PHONE: 3034609200 MAIL ADDRESS: STREET 1: 380 INTERLOCKEN CRESCENT CITY: BROOMFIELD STATE: CO ZIP: 80021 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Black River Asset Management LLC CENTRAL INDEX KEY: 0001303241 IRS NUMBER: 412066451 STATE OF INCORPORATION: DE FISCAL YEAR END: 0531 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 12700 WHITEWATER DRIVE CITY: MINNETONKA STATE: MN ZIP: 55343 BUSINESS PHONE: 952-984-3557 MAIL ADDRESS: STREET 1: 12700 WHITEWATER DRIVE CITY: MINNETONKA STATE: MN ZIP: 55343 SC 13G/A 1 sch13gamcdata3.txt SCH13GAMCDATA.TXT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------------- SCHEDULE 13GA AMENDMENT No. 2. ---------------- McData Corporation (Name of Issuer) Class B Common Stock (Title of Class of Securities) 580031102 (CUSIP Number) December 31, 2005 (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) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Black River Asset Management LLC I.R.S. Identification No: 41-2066451 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 Delaware Number of Shares Beneficially Owned by Each Reporting Person With 5. Sole Voting Power: 0 6. Shared Voting Power: 2,555,496 (see Item 4) 7. Sole Dispositive Power: 0 8. Shared Dispositive Power: 2,555,496 (see Item 4) 9. Aggregate Amount Beneficially Owned by Each Reporting Person: 2,555,496 (see Item 4) 10. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 11. Percent of Class Represented by Amount in Row (9): 7.35% 12. Type of Reporting Person (See Instructions): IA 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Black River Global Equity Arbitrage Fund Ltd. I.R.S. Identification No: 98-0413797 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 Cayman Islands Number of Shares Beneficially Owned by Each Reporting Person With 5. Sole Voting Power: 0 6. Shared Voting Power: 2,555,496 (see Item 4) 7. Sole Dispositive Power: 0 8. Shared Dispositive Power: 2,555,496 (see Item 4) 9. Aggregate Amount Beneficially Owned by Each Reporting Person: 2,555,496 (see Item 4) 10. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 11. Percent of Class Represented by Amount in Row (9): 7.35% 12. Type of Reporting Person (See Instructions): OO Item 1. (a) Name of Issuer: McData Corporation (b) Address of Issuer's Principal Executive Offices: 380 Interlocken Crescent Broomfield, CO 80021 Item 2. (a) Name of Person Filing: This statement is filed by: (i) Black River Asset Management LLC ("BRAM LLC") with respect to shares of Class B common stock ("Shares") of the Issuer beneficially owned by Black River Global Equity Arbitrage Fund Ltd. ("BRGEAF") and (ii) BRGEAF with respect to Shares beneficially owned by it. (b) Address of Principal Business Office: The address of the principal business office of BRAM LLC is 12700 Whitewater Drive, Minnetonka, MN 55343. The address of the principal business office of BRGEAF is P.O. Box 309GT, Ugland House South Church Street George Town, Grand Cayman Cayman Islands (c) Citizenship: BRAM LLC is a Delaware limited liability company. BRGEAF is a Cayman Islands exempted company. (d) Title of Class of Securities: Class B Common Stock. (e) CUSIP Number: 580031102. Item 3. If this statement is filed pursuant to ss.ss. 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) |X_| Investment Company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8) (e) |_| Investment Adviser in accordance with ss. 240.13d-1(b)(1)(ii)(E) (f) |_| Employee benefit plan or endowment fund in accordance with ss. 240.13d-1(b)(1)(ii)(F) (g) |_| Parent Holding Company or control person in accordance with ss.240.13d-1(b)(ii)(G) (h) |_| Savings Association as defined in ss.3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813) (i) |_| Church plan that is excluded from the definition of an investment company under ss.3(c)(15) of the Investment Company Act of 1940 (15 U.S.C. 80a-3) (j) |_| Group, in accordance with ss.240.13d-1(b)(ii)(J) Item 4. Ownership. The percentages used herein are calculated based upon the Shares issued and outstanding as of December 30, 2005, as reported on the Issuer's quarterly report on Form 10-Q filed for the quarterly period ended October 31, 2005. As of close of business on December 30, 2005 1. Black River Asset Management LLC (a) Amount beneficially owned: 2,555,496 (b) Percent of class: 7.35% (c) (i) Sole power to vote or to direct the vote: 0 (ii) Shared power to vote or to direct the vote: 2,555,496 (iii) Sole power to dispose or to direct the disposition of: 0 (iv) Shared power to dispose or to direct the disposition of: 2,555,496. 2. Black River Global Equity Arbitrage Fund Ltd. (a) Amount beneficially owned: 2,555,496 (b) Percent of class: 7.35% (c) (i) Sole power to vote or to direct the vote: 0 (ii) Shared power to vote or to direct the vote: 2,555,496 (iii) Sole power to dispose or to direct the disposition of: 0 (iv) Shared power to dispose or to direct the disposition of: 2,555,496. BRAM LLC does not own any Shares or securities convertible into shares. Pursuant to an investment advisory agreement, BRAM LLC has investment and voting power with respect to the securities held by Black River Global Equity Arbitrage Fund Ltd. Item 5. Ownership of Five Percent or Less of a Class Not Applicable 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 or Control Person Not Applicable Item 8. Identification and Classification of Members of the Group Not Applicable Item 9. Notice of Dissolution of Group Not Applicable Item 10. Certification 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. Date: February 14, 2006 Black River Asset Management LLC /s/ Robert Goedken _____________________________ Signature Name: Robert Goedken Title: Chief Legal Officer Date: February 14, 2006 Black River Global Equity Arbitrage Fund Ltd. By: Black River Asset Management LLC Its Investment Adviser /s/ Robert Goedken _____________________________ Signature Name: Robert Goedken Title: Chief Legal Officer -----END PRIVACY-ENHANCED MESSAGE-----