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


                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
             Information statement pursuant to Rule 13d-1 and 13d-2

                               (Amendment No. 8)*



                                SPIRE CORPORATION
--------------------------------------------------------------------------------
                                (Name of Issuer)


                     Common Stock, 0.01 par value per share
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   848565 10 7
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                                December 31, 2006
--------------------------------------------------------------------------------
              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
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).

                                   Page 1 of 5

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CUSIP NO. 848565 10 7                   13G                    PAGE 2 OF 5 PAGES
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================================================================================
  1   NAME OF REPORTING PERSON:
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY):

      Roger G. Little
----- --------------------------------------------------------------------------
  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

      United States
--------------------------------------------------------------------------------
                            5   SOLE VOTING POWER

                                2,191,045 shares
       NUMBER OF          ----- ------------------------------------------------
         SHARES             6   SHARED VOTING POWER
      BENEFICIALLY
        OWNED BY                0 shares
          EACH            ----- ------------------------------------------------
       REPORTING            7   SOLE DISPOSITIVE POWER
         PERSON
          WITH                  2,191,045 shares
                          ----- ------------------------------------------------
                            8   SHARED DISPOSITIVE POWER

                                0 shares
--------------------------------------------------------------------------------
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      2,191,045 shares
----- --------------------------------------------------------------------------
 10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  [_]


----- --------------------------------------------------------------------------
 11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

      26.6%
----- --------------------------------------------------------------------------
 12   TYPE OF REPORTING PERSON

      IN
================================================================================

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CUSIP NO. 848565 10 7                   13G                    PAGE 3 OF 5 PAGES
=====================                                          =================

ITEM 1.

      (a)   Name of Issuer

            Spire Corporation

      (b)   Address of Issuer's Principal Executive Offices

            One Patriots Park
            Bedford, Massachusetts 01730-2396


ITEM 2.

      (a)   Name of Person Filing

            Roger G. Little

      (b)   Address of Principal Business Office, or, if None, Residence

            One Patriots Park, Bedford, Massachusetts 01730-2396

      (c)   Citizenship

            United States

      (d)   Title of Class of Securities

            Common Stock, $0.01 par value per share

      (e)   CUSIP Number

            848565 10 7


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 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)  [ ] An investment advisor registered under Section 203 of the
          Investment Advisors Act of 1940.

     (f)  [ ] An 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).

     (g)  [ ] A parent holding company or control person in accordance with Rule
          13d-1(b)(ii)(G); see Item 7.

     (h)  [ ] A savings associations as defined in Section 3(b) of the Federal
          Deposit Insurance Act.

     (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.

     (j)  [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(H).


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CUSIP NO. 848565 10 7                   13G                    PAGE 4 OF 5 PAGES
=====================                                          =================

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: 2,191,045
     (b) Percent of class:          26.6%
     (c) Number of shares as to which such person has:

        (i)   Sole power to vote or to direct the vote:                2,191,045
        (ii)  Shared power to vote or to direct the vote:                      0
        (iii) Sole power to dispose or to direct the disposition of:   2,191,045
        (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 [ ].


ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

     Not applicable to reporting person.


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 to reporting person.


ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

     Not applicable to reporting person.


ITEM 9. NOTICE OF DISSOLUTION OF THE GROUP.

     Not applicable to reporting person.


ITEM 10. CERTIFICATION.

     Not applicable to reporting person.


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CUSIP NO. 848565 10 7                   13G                    PAGE 5 OF 5 PAGES
=====================                                          =================

                                    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 8, 2007
                                                     --------------------------

                                          Signature: /s/ Roger G. Little
                                                     --------------------------

                                          Name:      Roger G. Little
                                          Title:     Chairman & CEO