SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b) (Amendment No. 1)* NeuroMetrix, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 641255104 -------------------------------------------------------------------------------- (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: [ ] Rule 13d-1(b) [ ] Rule 13d-1(c) [X] 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 disclosures provided in a prior cover page. The information required on 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). (Continued on following pages) Page 1 of 12 Pages Exhibit Index on Page 11 ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 2 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Delphi Ventures IV, L.P. ("DV IV") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON PN ------------ --------------------------------------------------------------------------------------------------------- ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 3 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Delphi BioInvestments IV, L.P. ("DBI IV") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON PN ------------ --------------------------------------------------------------------------------------------------------- ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 4 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Delphi Management Partners IV, L.L.C. ("DMP IV") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON OO ------------ --------------------------------------------------------------------------------------------------------- ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 5 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON James J. Bochnowski ("Bochnowski") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IN ------------ --------------------------------------------------------------------------------------------------------- ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 6 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON David L. Douglass ("Douglass") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IN ------------ --------------------------------------------------------------------------------------------------------- ---------------------------------------------------------- ------------------- -------------------------------------- CUSIP NO. 641255104 13 G Page 7 of 12 Pages ---------------------------------------------------------- ------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Donald J. Lothrop ("Lothrop") Tax ID Number: ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) X ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF SHARES 5 SOLE VOTING POWER BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IN ------------ --------------------------------------------------------------------------------------------------------- Page 8 of 12 Pages This Amendment No. 1 amends the previous statement on Schedule 13G filed by Delphi Ventures IV, L.P., a Delaware limited partnership ("DV IV"), Delphi BioInvestments IV, L.P., a Delaware limited partnership ("DBI IV"), Delphi Management Partners IV, L.L.C., a Delaware limited liability company ("DMP IV") and the general partner of DV IV and DBI IV, James J. Bochnowski ("Bochnowski"), David L. Douglass ("Douglass") and Donald J. Lothrop ("Lothrop"), the managing members of DMP IV. The foregoing entities and individuals are collectively referred to as the "Reporting Persons". Only those items as to which there has been a change are included in this Amendment No. 1. DMP IV is the general partner of DV IV and DBI IV and may be deemed to have sole power to vote and sole power to dispose of shares of the issuer directly owned by DV IV and DBI IV. Bochnowski, Douglass and Lothrop are the managing members of DMP IV and may be deemed to have shared power to vote and shared power to dispose of the shares of the issuer directly owned by DV IV and DBI IV. ITEM 4. OWNERSHIP: ---------- The following information with respect to the ownership of the Common Stock of the issuer by the persons filing this Statement is provided as of December 31, 2005 (a) Amount beneficially owned: -------------------------- See Row 9 of cover page for each Reporting Person. (b) Percent of Class: ----------------- See Row 11 of cover page for each Reporting Person. (c) Number of shares as to which such person has: --------------------------------------------- (i) Sole power to vote or to direct the vote: ----------------------------------------- See Row 5 of cover page for each Reporting Person. (ii) Shared power to vote or to direct the vote: ------------------------------------------- See Row 6 of cover page for each Reporting Person. (iii) Sole power to dispose or to direct the ------------------------------------------------- disposition of: --------------- See Row 7 of cover page for each Reporting Person. (iv) Shared power to dispose or to direct the -------------------------------------------------- disposition of: --------------- See Row 8 of cover page for each Reporting Person. 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] Yes Page 9 of 12 Pages SIGNATURES ---------- 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. Dated: February __, 2006 DELPHI VENTURES IV, L.P., a Delaware Limited Partnership By: Delphi Management Partners IV, L.L.C., a Delaware Limited Liability Company Its General Partner By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski Member DELPHI BIOINVESTMENTS IV, L.P., a Delaware Limited Partnership By: Delphi Management Partners IV, L.L.C., a Delaware Limited Liability Company Its General Partner By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski Member DELPHI MANAGEMENT PARTNERS IV, L.L.C., a Delaware Limited Liability Company By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski Member Page 10 of 12 Pages JAMES J. BOCHNOWSKI By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski DAVID L. DOUGLASS By: /s/ David L. Douglass ------------------------------------ David L. Douglass DONALD J. LOTHROP By: /s/ Donald J. Lothrop ------------------------------- Donald J. Lothrop Page 11 of 12 Pages EXHIBIT INDEX ------------- Found on Sequentially Exhibit Numbered Page ------- ------------- Exhibit A: Agreement of Joint Filing 12 Page 12 of 12 Pages EXHIBIT A --------- Agreement of Joint Filing ------------------------- The undersigned hereby agree that a single Schedule 13G (or any amendment thereto) relating to the Common Stock of NeuroMetrix, Inc. shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13G. Date: February __, 2006 February __, 2006 DELPHI MANAGEMENT PARTNERS IV, L.L.C., a Delaware Limited Liability Company By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski, Member February __, 2006 DELPHI VENTURES IV, L.P., a Delaware Limited Partnership By: Delphi Management Partners IV, L.L.C., a Delaware Limited Liability Company Its General Partner By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski, Member February __, 2006 DELPHI BIOINVESTMENTS IV, L.P., a Delaware Limited Partnership By: Delphi Management Partners IV, L.L.C., a Delaware Limited Liability Company Its General Partner By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski, Member February __, 2006 By: /s/ James J. Bochnowski ------------------------------------ James J. Bochnowski February __, 2006 By: /s/ David L. Douglass ------------------------------------ David L. Douglass February __, 2006 By: /s/ Donald J. Lothrop ------------------------------------ Donald J. Lothrop