SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                ----------------

                                 SCHEDULE 13G/A
                                 (Rule 13d-102)
                                (Amendment No. 1)

                                ----------------

    INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b), (c)
        AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 UNDER THE
                         SECURITIES EXCHANGE ACT OF 1934

                           Mindspeed Technologies Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    602682205
                                 (CUSIP Number)

                                 October 8, 2008
             (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 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).





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 2 OF 11

------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                                     Polar Securities Inc.
------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                   (a) [X]
                                                                   (b) [ ]
------------------------------------------------------------------------------
(3)      SEC USE ONLY
------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                                     Canada
------------------------------------------------------------------------------

NUMBER OF         (5)    SOLE VOTING POWER
                                     -0-
SHARES            ____________________________________________________________

BENEFICIALLY      (6)    SHARED VOTING POWER
                                     2,414,097
OWNED BY          ____________________________________________________________

EACH              (7)    SOLE DISPOSITIVE POWER
                                     -0-
REPORTING         ____________________________________________________________

PERSON WITH       (8)    SHARED DISPOSITIVE POWER
                                     2,414,097
------------------------------------------------------------------------------
(9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
         BY EACH REPORTING PERSON
                                     2,414,097
------------------------------------------------------------------------------
(10)     CHECK BOX IF THE AGGREGATE AMOUNT
         IN ROW (9) EXCLUDES CERTAIN SHARES                            [ ]
------------------------------------------------------------------------------
(11)     PERCENT OF CLASS REPRESENTED
         BY AMOUNT IN ROW (9)
                                     10.1%
------------------------------------------------------------------------------
(12)     TYPE OF REPORTING PERSON
                                     IA
------------------------------------------------------------------------------





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 3 OF 11

------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                                     Altairis Offshore
------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                   (a) [X]
                                                                   (b) [ ]
------------------------------------------------------------------------------
(3)      SEC USE ONLY
------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                                     Cayman Islands
------------------------------------------------------------------------------

NUMBER OF         (5)    SOLE VOTING POWER
                                     -0-
SHARES            ____________________________________________________________

BENEFICIALLY      (6)    SHARED VOTING POWER
                                     788,308
OWNED BY          ____________________________________________________________

EACH              (7)    SOLE DISPOSITIVE POWER
                                     -0-
REPORTING         ____________________________________________________________

PERSON WITH       (8)    SHARED DISPOSITIVE POWER
                                     788,308
------------------------------------------------------------------------------
(9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
         BY EACH REPORTING PERSON
                                     788,308
------------------------------------------------------------------------------
(10)     CHECK BOX IF THE AGGREGATE AMOUNT
         IN ROW (9) EXCLUDES CERTAIN SHARES                            [ ]
------------------------------------------------------------------------------
(11)     PERCENT OF CLASS REPRESENTED
         BY AMOUNT IN ROW (9)
                                     3.3%
------------------------------------------------------------------------------
(12)     TYPE OF REPORTING PERSON
                                     CO
------------------------------------------------------------------------------





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 4 OF 11

------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                                     Altairis Offshore Levered
------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                   (a) [X]
                                                                   (b) [ ]
------------------------------------------------------------------------------
(3)      SEC USE ONLY
------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                                     Cayman Islands
------------------------------------------------------------------------------

NUMBER OF         (5)    SOLE VOTING POWER
                                     -0-
SHARES            ____________________________________________________________

BENEFICIALLY      (6)    SHARED VOTING POWER
                                     1,625,789
OWNED BY          ____________________________________________________________

EACH              (7)    SOLE DISPOSITIVE POWER
                                     -0-
REPORTING         ____________________________________________________________

PERSON WITH       (8)    SHARED DISPOSITIVE POWER
                                     1,625,789
------------------------------------------------------------------------------
(9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
         BY EACH REPORTING PERSON
                                     1,625,789
------------------------------------------------------------------------------
(10)     CHECK BOX IF THE AGGREGATE AMOUNT
         IN ROW (9) EXCLUDES CERTAIN SHARES                            [ ]
------------------------------------------------------------------------------
(11)     PERCENT OF CLASS REPRESENTED
         BY AMOUNT IN ROW (9)
                                     6.8%
------------------------------------------------------------------------------
(12)     TYPE OF REPORTING PERSON
                                     CO
------------------------------------------------------------------------------





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 5 OF 11

ITEM 1(a).   NAME OF ISSUER:

             Mindspeed Technologies Inc. (the "Company")

ITEM 1(b).   ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

             4000 MacArthur Boulevard, East Tower
             Newport Beach, California, 92660


ITEMS 2(a), 2(b) and 2(c).  NAME OF PERSON FILING, ADDRESS OF PRINCIPAL BUSINESS
OFFICE AND CITIZENSHIP:

     This statement is filed by the entities and persons listed below, all of
whom together are referred to herein as the "Reporting Persons":

             (i)     Altairis Offshore, a Cayman Islands exempted company,
                     with respect to the Shares (defined in item 2(d) below)
                     reported in this Schedule 13G/A directly owned by it.

             (ii)    Altairis Offshore Levered, a Cayman Islands exempted
                     company, with respect to the Shares reported in this
                     Schedule 13G/A directly owned by it.

             (iii)   Polar Securities Inc. ("Polar Securities"), a company
                     incorporated under the laws on Ontario, Canada, with
                     respect to the Shares reported in this Schedule 13G/A
                     directly owned by Altairis Offshore and Altairis
                     Offshore Levered.

The citizenship of each of the Reporting Persons is set forth above.

The address of the principal business office of each of the Reporting Persons is
372 Bay Street, 21st floor, Toronto, Ontario M5H 2W9, Canada.

ITEM 2(d).   TITLE OF CLASS OF SECURITIES:  common stock (the "Shares")

ITEM 2(e).   CUSIP NUMBER:           602682205





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 6 OF 11

ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c),
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) [ ]   Investment Adviser registered under Section 203 of the
                       Investment Advisers Act of 1940:  see Rule
                       13d-1(b)(1)(ii)(E);

             (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);

             (g) [ ]   Parent Holding Company, in accordance with
                       Rule 13d-1(b)(ii)(G);

             (h) [ ]   Savings Associations as defined in Section 3(b) of the
                       Federal Deposit Insurance Act;

             (i) [ ]   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)(J).

     IF THIS STATEMENT IS FILED PURSUANT TO Rule 13d-1(c), CHECK THIS BOX. [x]





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 7 OF 11

ITEM 4.      OWNERSHIP.

     Polar Securities Inc. serves as the investment manager to Altairis Offshore
and Altairis Offshore Levered and has voting and dispositive authority over the
Shares reported in this Schedule 13G/A.

     Each of the Reporting Persons hereby disclaims any beneficial ownership of
any such Shares.

     A. Polar Securities

        (a) Amount beneficially owned: 2,414,097

        (b) Percent of class: 10.1% (all percentages herein are based on
        23,813,151 Shares reported to be outstanding as of July 25, 2008
        as reflected in the Form 10-Q filed by the Company on August 5,
        2008).

        (c) Number of shares as to which such person has:

            (i)   sole power to vote or to direct the vote: 0 Shares.

            (ii)  shared power to vote or to direct the vote: 2,414,097
                  Shares.

            (iii) sole power to dispose or to direct the disposition of: 0
                  Shares.

            (iv)  shared power to dispose or to direct the disposition of:
                  2,414,097 Shares





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 8 OF 11

     B. Altairis Offshore

        (a) Amount beneficially owned: 788,308

        (b) Percent of class: 3.3%

        (c) Number of shares as to which such person has:

            (i)   sole power to vote or to direct the vote: 0 Shares.

            (ii)  shared power to vote or to direct the vote: 788,308
                  Shares.

            (iii) sole power to dispose or to direct the disposition of: 0
                  Shares.

            (iv)  shared power to dispose or to direct the disposition of:
                  788,308 Shares

     C. Altairis Offshore Levered

        (a) Amount beneficially owned: 1,625,789

        (b) Percent of class: 6.8%

        (c) Number of shares as to which such person has:

            (i)   sole power to vote or to direct the vote: 0 Shares.

            (ii)  shared power to vote or to direct the vote: 1,625,789
                  Shares.

            (iii) sole power to dispose or to direct the disposition of: 0
                  Shares.

            (iv)  shared power to dispose or to direct the disposition of:
                  1,625,789 Shares





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 9 OF 11

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.

             See Item 4.

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

             See Item 4.

ITEM 9.      NOTICE OF DISSOLUTION OF GROUP

             Not applicable.

ITEM 10.     CERTIFICATION (if filing pursuant to Rule 13d-1(c))

     Each of the Reporting Persons hereby makes the following certification:

By signing below each Reporting Person 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 not held in
connection with or as a participant in any transaction having that purpose or
effect.





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 10 OF 11

                                   SIGNATURES

     After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.


DATED:  October 14, 2008                   Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer

                                           Altairis Offshore
                                           By:  Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer

                                           Altairis Offshore Levered
                                           By:  Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer





Schedule 13G/A

CUSIP No. 602682205                                                PAGE 11 OF 11

                                    EXHIBIT 1
                           JOINT ACQUISITION STATEMENT

                            PURSUANT TO RULE 13d-1(k)

         The undersigned acknowledge and agree that the foregoing statement on
Schedule 13G/A, is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13G/A, shall be filed on
behalf of each of the undersigned without the necessity of filing additional
joint acquisition statements. The undersigned acknowledge that each shall be
responsible for the timely filing of such amendments, and for the completeness
and accuracy of the information concerning him or it contained therein, but
shall not be responsible for the completeness and accuracy of the information
concerning the others, except to the extent that he or it knows or has reason to
believe that such information is inaccurate.

DATED:  October 14, 2008                   Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer

                                           Altairis Offshore
                                           By:  Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer

                                           Altairis Offshore Levered
                                           By:  Polar Securities Inc.
                                           /s/ Paul Sabourin
                                           -----------------------------------
                                           Paul Sabourin
                                           Chief Investment Officer