SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 Thermage, Inc. ----------------------------------------------------------------------------- (Name of Issuer) Common Stock, $0.001 par value per share ----------------------------------------------------------------------------- (Title of Class of Securities) 88343R-101 ----------------------------------------------------------------------------- (Cusip Number) 12/31/2006 ----------------------------------------------------------------------------- (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which the Schedule is filed: [ ] Rule 13d-1(b) [X] 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. 88343R-101 ------------ SCHEDULE 13G ------------------------------------------------------------------------------ | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | Morgenthaler Venture Partners V 34-1872532 | |-----|----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | Delaware | |-------------------------------|-------|------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | 0 | | |-------|------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | 0 | | | | | | PERSON |-------|------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES (SEE INSTRUCTIONS) [ ] | | | N/A ---- | |-----|----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | | | | 6.46% | |-----|----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | PN | ------------------------------------------------------------------------------ SCHEDULE 13G - ----------------------------------------------------------------------------- | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | Morgenthaler Management Partners V 34-1872535 | |-----|-----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|-----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|-----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | Ohio | |-------------------------------|-------|-------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | 0 | | |-------|-------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|-------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | | | | | 0 | | PERSON |-------|-------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|-------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|-----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES (SEE INSTRUCTIONS) [ ] | | | N/A ---- | |-----|-----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | 6.46% | |-----|-----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | PN | ------------------------------------------------------------------------------- SCHEDULE 13G SCHEDULE 13G ------------------------------------------------------------------------------- | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | Robert D. Pavey | |-----|-----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|-----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|-----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | United States | |-------------------------------|-------|-------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | 0 | | |-------|-------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|-------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | | | | | 0 | | PERSON |-------|-------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|-------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|-----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES (SEE INSTRUCTIONS) [ ] | | | N/A ---- | |-----|-----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | 6.46% | |-----|-----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | IN | ------------------------------------------------------------------------------- SCHEDULE 13G ------------------------------------------------------------------------------- | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | Robert C. Bellas, Jr. | |-----|-----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|-----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|-----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | United States | |-------------------------------|-------|-------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | 0 | | |-------|-------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|-------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | | | | | 0 | | PERSON |-------|-------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|-------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|-----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES (SEE INSTRUCTIONS) [ ] | | | N/A ---- | |-----|-----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | 6.46% | |-----|-----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | IN | ------------------------------------------------------------------------------- SCHEDULE 13G ------------------------------------------------------------------------------ | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | Gary J. Morgenthaler | |-----|----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | United States | |-------------------------------|-------|------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | | | |-------|------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | | | | | | | PERSON |-------|------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES [ X ] | | | (See Item 4) ---- | |-----|----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | | | | 6.46% | |-----|----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | IN | ------------------------------------------------------------------------------ SCHEDULE 13G ------------------------------------------------------------------------------ | 1 | NAME OF REPORTING PERSON | | | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITY ONLY) | | | | | | John D. Lutsi | |-----|----------------------------------------------------------------------| | 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ X ] | | | (SEE INSTRUCTIONS) ---- | | | (b) [ ] | | | ---- | |-----|----------------------------------------------------------------------| | 3 | SEC USE ONLY | | | | |-----|----------------------------------------------------------------------| | 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | | | United States | |-------------------------------|-------|------------------------------------| | NUMBER OF | 5 | SOLE VOTING POWER | | | | | | SHARES | | 0 | | |-------|------------------------------------| | BENEFICIALLY | 6 | SHARED VOTING POWER | | | | | | OWNED BY | | 1,890,937 (See Item 4) | | |-------|------------------------------------| | EACH | 7 | SOLE DISPOSITIVE POWER | | | | | | REPORTING | | | | | | 0 | | PERSON |-------|------------------------------------| | | 8 | SHARED DISPOSITIVE POWER | | WITH | | | | | | 1,890,937 (See Item 4) | |-------------------------------|-------|------------------------------------| | 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | | | | | | 1,890,937 (See Item 4) | |-----|----------------------------------------------------------------------| | 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN | | | SHARES (SEE INSTRUCTIONS) [ ] | | | N/A ---- | |-----|----------------------------------------------------------------------| | 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | | | 6.46% | |-----|----------------------------------------------------------------------| | 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | | | | | | IN | ------------------------------------------------------------------------------ SCHEDULE 13G ------------ Item 1(a). NAME OF ISSUER: Thermage, Inc. Item 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 25881 Industrial Boulevard Hayward, California 94545 Item 2(a). NAMES OF PERSONS FILING: Morgenthaler Venture Partners V (MVP V); Morgenthaler Management Partners V (MMP V), the general partner of MVP V; Robert D. Pavey, Robert C. Bellas, Jr., Gary J. Morgenthaler and John D. Lutsi (collectively, the "Managing Members") are members of MMP V, the general partner of MVP V. Item 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: The address of the principal business office of MVP V, MMP V and each of the Managing Members is: Morgenthaler Venture Partners V, L.P. 50 Public Square Suite 2700 Cleveland, Ohio 44113 Item 2(c). CITIZENSHIP: MVP V is a limited partnership organized under the laws of Delaware and MMP V is a limited partnership organized under the laws of the State of Ohio. Each of the Managing Members is a United States citizen. Item 2(d). TITLE OF CLASS OF SECURITIES: Common Stock, $0.001 par value per share Item 2(e). CUSIP NUMBER: 88343R-101 Item 3. IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR 13d-2(b), CHECK WHETHER THE PERSON FILING IS a: (a) [ ] Broker or Dealer registered under Section 15 of the Securities Exchange Act of 1934 (the "Act"). (b) [ ] Bank as defined in Section 3(a)(6) of the Act. (c) [ ] Insurance Company as defined in Section 3(a)( 19) of the Act. (d) [ ] Investment Company registered under Section 8 of the Investment Company Act of 1940. (e) [ ] Investment Advisor registered under Section 203 of the Investment Advisors Act of 1940. (f) [ ] Employee Benefit Plan, Pension Fund which is subject to the provisions of the Employee Retirement Income Security Act of 1974 or Endowment Fund; see Rule 13d-1(b)(1)(ii)(f) of the Act. (g) [ ] Parent Holding Company, in accordance with Rule 13d-1(b)(ii)(G) of the Act. (h) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(H) of the Act. Not Applicable. Item 4. OWNERSHIP. (a) Amount beneficially owned: MVP V, 1,890,937 shares of Thermage, Inc. and each of MMP V, Robert D. Pavey, Robert C. Bellas, Gary, J. Morgenthaler and John D. Lutsi may be deemed to beneficially own 1,890,937 shares of Thermage, Inc. (the company) as of December 31, 2006. MVP V is the record owner of 1,890,937 shares. MMP V, in its capacity as the General partner of MVP V, may be deemed beneficially own such 1,890,937 shares. (b) Percent of Class: (based on 29,292,423 shares of common stock) MVP V: 6.46% MMP V: 6.46% Robert D. Pavey: 6.46% Robert C. Bellas: 6.46% Gary J. Morgenthaler: 6.46% John D. Lutsi: 6.46% (c) Number of shares as to which such person has: (i) sole power to vote or to direct the vote: N/A (ii) shared power to vote or to direct the vote: MVP V: 1,890,937 shares MMP V: 1,890,937 shares Robert D. Pavey : 1,890,937 shares Robert C. Bellas: 1,890,937 shares Gary J. Morgenthaler : 1,890,937 shares John D. Lutsi: 1,890,937 shares (iii) sole power to dispose or direct the disposition of: N/A (iv) shared power to dispose or direct the disposition of: MVP V: 1,890,937 shares MMP V: 1,890,937 shares Robert D. Pavey : 1,890,937 shares Robert C. Bellas: 1,890,937 shares Gary J. Morgenthaler : 1,890,937 shares John D. Lutsi: 1,890,937 shares Each of MVP V and MMP V and each of the General Partners expressly disclaims beneficial ownership of any shares of common stock of the Company, except in the case of MVP V, for the 1,890,937 shares which its holds of record. 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. 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. Not Applicable. This statement on Schedule 13G is not filed pursuant to Rule 13d-1(b). By signing below, I certify that, to the best of my knowledge and belief, the securities referred to above 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. SIGNATURES ---------- After reasonable inquiry and to the best of its knowledge and belief, I certify that the information set forth in this statement is true, complete, and correct. Date: February 12, 2007 MORGENTHALER VENTURE PARTNERS V By: Morgenthaler Management Partners V, LLC By: * ---------------------------------------- General Partner MORGENTHALER MANAGEMENT PARTNERS V, LLC By: * ---------------------------------------- Managing Member * ---------------------------------------- Robert D. Pavey * ---------------------------------------- Robert C. Bellas, Jr. * ---------------------------------------- Gary J. Morgenthaler * ---------------------------------------- John D. Lutsi *By: /s/ Theodore A. Laufik --------------------------------------- Theodore A. Laufik Attorney-in-Fact