UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G
                                (RULE 13d - 102)

     INFORMATION TO BE INCLUDED IN STATEMENTS  FILED  PURSUANT TO 13d-1(b),  (c)
AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b)

                               (Amendment No. 1)*

StemCells, Inc.
(Name of Issuer)

Common Stock
(Title of Class of Securities)

85857R105
(CUSIP Number)

     Stephen M. Schultz, Esq., Kleinberg, Kaplan, Wolff & Cohen, P.C., 551 Fifth
Avenue,  New York,  New York  10176  Tel:  (212)  986-6000  (Name,  Address  and
Telephone Number of Person Authorized to Receive Notices and Communications)

December 31, 2000
(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)
[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
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 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).

                                  (Page 1 of 5)



Page 5 of 1 1. NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Millennium Partners, L.P. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (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 2,196,496 6. SHARED VOTING POWER 0 7. SOLE DISPOSITIVE POWER 2,196,496 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,196,496 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [x] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.99% 12. TYPE OF REPORTING PERSON* PN *SEE INSTRUCTIONS BEFORE FILLING OUT!

This statement is filed pursuant to Rule 13d-2(b) with respect to the shares of common stock (the "Common Stock") of StemCells, Inc. (the "Issuer") beneficially owned by Millennium Partners, L.P. as of February 22, 2001 and amends and supplements the Schedule 13G dated September 11, 2000 (the "Schedule 13G") previously filed by the reporting person in connection with its beneficial ownership of shares of Common Stock. Except as set forth herein, the Schedule 13G is unmodified. 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: Subject to the Ownership Limitation (defined below), the reporting person owns or has the right to acquire a total of 2,260,993 shares of Common Stock, which includes: (i) 1,163,435 shares of Common Stock held outright; (ii) 101,587 shares of Common Stock currently issuable to the reporting person upon the exercise of warrants issued to it by the Company on August 3, 2000; (iii) 19,900 shares of Common Stock currently issuable to the reporting person upon the exercise of warrants issued to it by the Issuer on August 30, 2000; (iv) 461,894 of Common Stock currently issuable to the reporting person upon exercise of an option issued to the reporting person on August 3, 2000 to purchase up to $2 million of Common Stock based upon the market price of the Common Stock at the time of the exercise (as further described below) (the "Option"); (v) 50,808 shares of Common Stock issuable to the reporting person upon the exercise of warrants issuable to it by the Issuer upon the reporting person's exercise of the Option; and (vi) 463,369 shares of Common Stock issuable to the reporting person upon exercise of an adjustment warrant issued to it by the Issuer. In accordance with Rule 13d-4 under the Securities Exchange Act of 1934, as amended, because the number of shares of Common Stock into which the reporting person's warrants, adjustment warrants and option are convertible or exercisable, as applicable, are limited, pursuant to the terms of such instruments, to that number of shares of Common Stock which would result in the reporting person having aggregate beneficial ownership of 9.99% of the total issued and outstanding shares of Common Stock (the "Ownership Limitation"), the reporting person disclaims beneficial ownership of any and all shares of Common Stock that would cause the reporting person's aggregate beneficial ownership to exceed the Ownership Limitation. Therefore, in accordance with the Ownership Limitation, the reporting person, based upon 20,953,887 shares of common stock outstanding, beneficially owns an aggregate of 2,196,496 shares of Common Stock, and disclaims beneficial ownership of 64,497 shares of Common Stock. The Ownership Limitation (b) Percent of class: 9.99% (based 20,953,887 shares of Common Stock outstanding as reported in the Issuer's Amended Registration Statement on Form S-1 dated January 31, 2001) (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote: 2,196,496 shares of Common Stock. (ii) Shared power to vote or to direct the vote 0 (iii) Sole power to dispose or to direct the disposition of 2,196,496 shares of Common Stock. (iv) Shared power to dispose or to direct the disposition of 0 Item 10. Certification. By signing below the undersigned certifies that, to the best of its 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.

SIGNATURES After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct. Dated: February 23, 2001 MILLENNIUM PARTNERS, L.P. By: /s/ Terry Feeney Terry Feeney Chief Administrative Officer