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

                                    FORM N-PX

               ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED
                          MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-03639

                Morgan Stanley Developing Growth Securities Trust
               --------------------------------------------------
               (Exact name of registrant as specified in charter)

  522 Fifth Avenue, New York, New York                                   10036
--------------------------------------------------------------------------------
(Address of principal executive offices)                              (Zip code)

                               Amy Doberman, Esq.
                                Managing Director
                     Morgan Stanley Investment Advisors Inc.
                                522 Fifth Avenue
                            New York, New York 10036
                     ---------------------------------------
                     (Name and address of agent for service)

Registrant's telephone number, including area code: 800-869-6397

Date of fiscal year end: 9/30

Date of reporting period: 7/1/06 - 6/30/07



******************************* FORM N-Px REPORT *******************************

ICA File Number: 811-03639
Reporting Period: 07/01/2006 - 06/30/2007
Morgan Stanley Developing Growth Securities Trust









============== MORGAN STANLEY DEVELOPING GROWTH SECURITIES TRUST ===============


ABERCROMBIE & FITCH CO.

Ticker:       ANF            Security ID:  002896207
Meeting Date: JUN 13, 2007   Meeting Type: Annual
Record Date:  APR 17, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director John A. Golden             For       For        Management
1.2   Elect Director Edward F. Limato           For       For        Management
2     Amend Executive Incentive Bonus Plan      For       For        Management
3     Approve Omnibus Stock Plan                For       For        Management
4     Ratify Auditors                           For       For        Management


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ACTIVISION, INC.

Ticker:       ATVI           Security ID:  004930202
Meeting Date: SEP 14, 2006   Meeting Type: Annual
Record Date:  JUL 17, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Robert A. Kotick           For       For        Management
1.2   Elect Director Brian G. Kelly             For       For        Management
1.3   Elect Director Ronald Doornink            For       For        Management
1.4   Elect Director Robert J. Corti            For       For        Management
1.5   Elect Director Barbara S. Isgur           For       For        Management
1.6   Elect Director Robert J. Morgado          For       For        Management
1.7   Elect Director Peter J. Nolan             For       For        Management
1.8   Elect Director Richard Sarnoff            For       For        Management
2     Ratify Auditors                           For       For        Management
3     Increase Board Diversity                  Against   Against    Shareholder
4     Other Business                            For       Against    Management


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ALLEGHANY CORP.

Ticker:       Y              Security ID:  017175100
Meeting Date: APR 27, 2007   Meeting Type: Annual
Record Date:  MAR 1, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Allan P. Kirby, Jr.        For       For        Management
1.2   Elect Director Thomas S. Johnson          For       For        Management
1.3   Elect Director James F. Will              For       For        Management
2     Approve Omnibus Stock Plan                For       For        Management
3     Ratify Auditors                           For       For        Management


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AMAZON.COM, INC.

Ticker:       AMZN           Security ID:  023135106
Meeting Date: JUN 14, 2007   Meeting Type: Annual
Record Date:  APR 17, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Jeffrey P. Bezos           For       For        Management
1.2   Elect Director Tom A. Alberg              For       For        Management
1.3   Elect Director John Seely Brown           For       For        Management
1.4   Elect Director L. John Doerr              For       For        Management
1.5   Elect Director William B. Gordon          For       For        Management
1.6   Elect Director Myrtle S. Potter           For       For        Management
1.7   Elect Director Thomas O. Ryder            For       For        Management
1.8   Elect Director Patricia Q. Stonesifer     For       For        Management
2     Ratify Auditors                           For       For        Management
3     Amend Omnibus Stock Plan                  For       For        Management


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BROWN & BROWN, INC.

Ticker:       BRO            Security ID:  115236101
Meeting Date: MAY 16, 2007   Meeting Type: Annual
Record Date:  MAR 16, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director J. Hyatt Brown             For       For        Management
1.2   Elect Director Samuel P. Bell, III        For       For        Management
1.3   Elect Director Hugh M. Brown              For       For        Management
1.4   Elect Director Bradley Currey, Jr.        For       For        Management
1.5   Elect Director Jim W. Henderson           For       For        Management
1.6   Elect Director Theodore J. Hoepner        For       For        Management
1.7   Elect Director David H. Hughes            For       For        Management
1.8   Elect Director Toni Jennings              For       For        Management
1.9   Elect Director John R. Riedman            For       For        Management
1.10  Elect Director Jan E. Smith               For       For        Management
1.11  Elect Director Chilton D. Varner          For       For        Management


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C.H. ROBINSON WORLDWIDE, INC.

Ticker:       CHRW           Security ID:  12541W209
Meeting Date: MAY 17, 2007   Meeting Type: Annual
Record Date:  MAR 26, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Rebecca K. Roloff          For       For        Management
1.2   Elect Director Michael W. Wickham         For       For        Management
2     Ratify Auditors                           For       For        Management


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CABOT CORP.

Ticker:       CBT            Security ID:  127055101
Meeting Date: MAR 8, 2007    Meeting Type: Annual
Record Date:  JAN 16, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Kennett F. Burnes          For       For        Management
1.2   Elect Director John S. Clarkeson          For       For        Management
1.3   Elect Director Roderick C.G. MacLeod      For       For        Management
1.4   Elect Director Ronaldo H. Schmitz         For       For        Management
1.5   Elect Director Shengman Zhang             For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Executive Incentive Bonus Plan    For       For        Management


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CALAMOS ASSET MGMT INC

Ticker:       CLMS           Security ID:  12811R104
Meeting Date: MAY 25, 2007   Meeting Type: Annual
Record Date:  APR 19, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director G. Bradford Bulkley        For       For        Management
1.2   Elect Director Mitchell S. Feiger         For       For        Management
1.3   Elect Director Richard W. Gilbert         For       For        Management
1.4   Elect Director Arthur L. Knight           For       For        Management
2     Ratify Auditors                           For       For        Management


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CHOICE HOTELS INTERNATIONAL, INC.

Ticker:       CHH            Security ID:  169905106
Meeting Date: MAY 1, 2007    Meeting Type: Annual
Record Date:  MAR 12, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director William L. Jews            For       For        Management
1.2   Elect Director John T. Schwieters         For       For        Management
1.3   Elect Director David C. Sullivan          For       For        Management
2     Ratify Auditors                           For       For        Management


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CHOICEPOINT INC.

Ticker:       CPS            Security ID:  170388102
Meeting Date: MAY 1, 2007    Meeting Type: Annual
Record Date:  MAR 16, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Ray M. Robinson            For       For        Management
1.2   Elect Director Derek V. Smith             For       For        Management
1.3   Elect Director M. Anne Szostak            For       For        Management
2     Company Specific-Provide for Majority     For       For        Management
      Voting for Directors
3     Amend Omnibus Stock Plan                  For       For        Management
4     Ratify Auditors                           For       For        Management


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COACH, INC.

Ticker:       COH            Security ID:  189754104
Meeting Date: NOV 2, 2006    Meeting Type: Annual
Record Date:  SEP 14, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Lew Frankfort              For       For        Management
1.2   Elect Director Susan Kropf                For       For        Management
1.3   Elect Director Gary Loveman               For       For        Management
1.4   Elect Director Ivan Menezes               For       For        Management
1.5   Elect Director Irene Miller               For       For        Management
1.6   Elect Director Keith Monda                For       For        Management
1.7   Elect Director Michael Murphy             For       For        Management
1.8   Elect Director Jide Zeitlin               For       For        Management


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CORPORATE EXECUTIVE BOARD CO. (THE)

Ticker:       EXBD           Security ID:  21988R102
Meeting Date: JUN 14, 2007   Meeting Type: Annual
Record Date:  APR 23, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director James J. McGonigle         For       For        Management
1.2   Elect Director Thomas L. Monahan III      For       For        Management
1.3   Elect Director Robert C. Hall             For       For        Management
1.4   Elect Director Nancy J. Karch             For       For        Management
1.5   Elect Director David W. Kenny             For       For        Management
1.6   Elect Director Daniel O. Leemon           For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Ratify Auditors                           For       For        Management


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CROWN CASTLE INTERNATIONAL CORP.

Ticker:       CCI            Security ID:  228227104
Meeting Date: JAN 11, 2007   Meeting Type: Special
Record Date:  NOV 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Approve Merger Agreement                  For       For        Management


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CROWN CASTLE INTERNATIONAL CORP.

Ticker:       CCI            Security ID:  228227104
Meeting Date: MAY 24, 2007   Meeting Type: Annual
Record Date:  MAR 26, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Edward C. Hutcheson, Jr.   For       For        Management
1.2   Elect Director J. Landis Martin           For       For        Management
1.3   Elect Director W. Benjamin Moreland       For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Eliminate Class of Common Stock           For       For        Management
4     Ratify Auditors                           For       For        Management


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DADE BEHRING HOLDINGS, INC.

Ticker:       DADE           Security ID:  23342J206
Meeting Date: MAY 3, 2007    Meeting Type: Annual
Record Date:  MAR 8, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director N. Leigh Anderson, Ph.D.   For       For        Management
1.2   Elect Director James G. Andress           For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management


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DESARROLLADORA HOMEX SAB DE CV

Ticker:       HXM            Security ID:  25030W100
Meeting Date: APR 26, 2007   Meeting Type: Special
Record Date:  MAR 1, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     READING, DISCUSSION AND APPROVAL OR       For       Abstain    Management
      AMENDMENT, AS THE CASE MAY BE, OF THE
      REPORTS OF THE BOARD OF DIRECTORS ON THE
      COMPANY S REVIEW PURSUANT TO ARTICLE 28,
      SECTION IV OF THE MEXICAN SECURITIES LAW,
      INCLUDING THE FINANCIAL STATEMENTS FOR
      THE YEAR ENDED ON
2     RESOLUTION OVER THE APPLICATION OF THE    For       Abstain    Management
      RESULTS OBTAINED IN SUCH FISCAL YEAR.
3     APPOINTMENT OR RATIFICATION, AS THE CASE  For       Abstain    Management
      MAY BE, OF THE MEMBERS OF THE BOARD OF
      DIRECTORS AND SECRETARY, AND
      DETERMINATION OF THEIR COMPENSATION.
4     APPOINTMENT OR RATIFICATION, AS THE CASE  For       Abstain    Management
      MAY BE, OF THE CHAIRMAN AND MEMBERS OF
      THE AUDIT COMMITTEE AND CORPORATE
      GOVERNANCE COMMITTEE.
5     DISCUSSION AND APPROVAL, AS THE CASE MAY  For       For        Management
      BE, OF THE MAXIMUM AMOUNT THAT COULD BE
      USED TO REPURCHASE OF STOCK OF THE
      COMPANY DURING 2007.
6     DESIGNATION OF DELEGATES WHO WILL         For       For        Management
      FORMALIZE AND EXECUTE THE RESOLUTIONS
      ADOPTED AT THIS MEETING.
7     ADJUSTMENTS AND CHANGES TO THE BYLAWS OF  For       Abstain    Management
      DESARROLLADORA HOMEX, S.A.B. DE C.V., TO
      MODIFY ARTICLES SIX, TWENTY TWO, THIRTY
      THREE AND THIRTY FOUR.
8     DESIGNATION OF DELEGATES WHO WILL         For       For        Management
      FORMALIZE AND EXECUTE THE RESOLUTIONS
      ADOPTED AT THIS MEETING.


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EASTMAN KODAK CO.

Ticker:       EK             Security ID:  277461109
Meeting Date: MAY 9, 2007    Meeting Type: Annual
Record Date:  MAR 19, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael J. Hawley          For       For        Management
1.2   Elect Director William H. Hernandez       For       For        Management
1.3   Elect Director Hector de J. Ruiz          For       For        Management
1.4   Elect Director Laura D'Andrea Tyson       For       For        Management
2     Ratify Auditors                           For       For        Management
3     Limit Executive Compensation              Against   Against    Shareholder


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EQUINIX, INC.

Ticker:       EQIX           Security ID:  29444U502
Meeting Date: JUN 7, 2007    Meeting Type: Annual
Record Date:  APR 25, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Steven T. Clontz           For       For        Management
1.2   Elect Director Steven P. Eng              For       For        Management
1.3   Elect Director Gary F. Hromadko           For       For        Management
1.4   Elect Director Scott G. Kriens            For       For        Management
1.5   Elect Director Irving F. Lyons, III       For       For        Management
1.6   Elect Director Stephen M. Smith           For       For        Management
1.7   Elect Director Peter F. Van Camp          For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Executive Incentive Bonus Plan    For       For        Management


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EXPEDIA INC

Ticker:       EXPE           Security ID:  30212P105
Meeting Date: JUN 6, 2007    Meeting Type: Annual
Record Date:  APR 12, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director A. George (skip) Battle    For       Did Not    Management
                                                          Vote
1.2   Elect Director Simon J. Breakwell         For       Did Not    Management
                                                          Vote
1.3   Elect Director Barry Diller               For       Did Not    Management
                                                          Vote
1.4   Elect Director Jonathan L. Dolgen         For       Did Not    Management
                                                          Vote
1.5   Elect Director William R. Fitzgerald      For       Did Not    Management
                                                          Vote
1.6   Elect Director David Goldhill             For       Did Not    Management
                                                          Vote
1.7   Elect Director Victor A. Kaufman          For       Did Not    Management
                                                          Vote
1.8   Elect Director Peter M. Kern              For       Did Not    Management
                                                          Vote
1.9   Elect Director Dara Khosrowshahi          For       Did Not    Management
                                                          Vote
1.10  Elect Director John C. Malone             For       Did Not    Management
                                                          Vote
2     Amend Omnibus Stock Plan                  For       Did Not    Management
                                                          Vote
3     Ratify Auditors                           For       Did Not    Management
                                                          Vote


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EXPEDITORS INTERNATIONAL OF WASHINGTON, INC.

Ticker:       EXPD           Security ID:  302130109
Meeting Date: MAY 2, 2007    Meeting Type: Annual
Record Date:  MAR 9, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Peter J. Rose              For       For        Management
1.2   Elect Director James L.K. Wang            For       For        Management
1.3   Elect Director R. Jordan Gates            For       For        Management
1.4   Elect Director James J. Casey             For       For        Management
1.5   Elect Director Dan P. Kourkoumelis        For       For        Management
1.6   Elect Director Michael J. Malone          For       For        Management
1.7   Elect Director John W. Meisenbach         For       For        Management
2     Approve Stock Option Plan                 For       For        Management
3     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
4     Ratify Auditors                           For       For        Management
5     Amend EEO Policy to Reference             Against   For        Shareholder
      Discrimination based on Sexual
      Orientation


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FLORIDA ROCK INDUSTRIES, INC.

Ticker:       FRK            Security ID:  341140101
Meeting Date: FEB 7, 2007    Meeting Type: Annual
Record Date:  DEC 11, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Thompson S. Baker Ii       For       For        Management
1.2   Elect Director John A. Delaney            For       For        Management
1.3   Elect Director Luke E. Fichthorn III      For       For        Management
1.4   Elect Director Francis X. Knott           For       For        Management
2     Ratify Auditors                           For       For        Management


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FOREST CITY ENTERPRISES, INC.

Ticker:       FCE.A          Security ID:  345550107
Meeting Date: JUN 21, 2007   Meeting Type: Annual
Record Date:  APR 23, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael P. Esposito, Jr    For       For        Management
1.2   Elect Director Joan K. Shafran            For       For        Management
1.3   Elect Director Louis Stokes               For       For        Management
1.4   Elect Director Stan Ross                  For       For        Management
2     Ratify Auditors                           For       For        Management


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HILTON HOTELS CORP.

Ticker:       HLT            Security ID:  432848109
Meeting Date: MAY 24, 2007   Meeting Type: Annual
Record Date:  MAR 29, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Elect Director A. Steven Crown            For       For        Management
2     Elect Director John H. Myers              For       For        Management
3     Elect Director Donna F. Tuttle            For       For        Management
4     Ratify Auditors                           For       For        Management
5     Separate Chairman and CEO Positions       Against   Against    Shareholder


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INTERCONTINENTAL HOTELS GROUP PLC

Ticker:       IHG            Security ID:  45857P202
Meeting Date: JUN 1, 2007    Meeting Type: Annual
Record Date:  MAR 27, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     RECEIPT OF FINANCIAL STATEMENTS           For       For        Management
2     APPROVAL OF REMUNERATION REPORT           For       For        Management
3     DECLARATION OF FINAL DIVIDEND             For       For        Management
4(a)  RE-ELECTION OF ROBERT C LARSON+           For       For        Management
4(b)  RE-ELECTION OF SIR DAVID PROSSER+         For       For        Management
4(c)  RE-ELECTION OF RICHARD SOLOMONS           For       For        Management
4(d)  RE-ELECTION OF DAVID WEBSTER              For       For        Management
5     Ratify Auditors                           For       For        Management
6     AUTHORITY TO SET AUDITORS  REMUNERATION   For       For        Management
7     POLITICAL DONATIONS                       For       For        Management
8     ALLOTMENT OF SHARES                       For       For        Management
9     DISAPPLICATION OF PRE-EMPTION RIGHTS      For       For        Management
10    AUTHORITY TO PURCHASE OWN SHARES          For       For        Management
11    E-COMMUNICATIONS AND THE COMPANIES ACT    For       For        Management
      2006


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INTERCONTINENTAL HOTELS GROUP PLC

Ticker:       IHG            Security ID:  45857P202
Meeting Date: JUN 1, 2007    Meeting Type: Special
Record Date:  APR 23, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     CONSOLIDATION OF SHARE CAPITAL            For       For        Management
2     AUTHORITY TO PURCHASE OWN SHARES          For       For        Management


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IRON MOUNTAIN INC.

Ticker:       IRM            Security ID:  462846106
Meeting Date: MAY 24, 2007   Meeting Type: Annual
Record Date:  APR 12, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Clarke H. Bailey           For       Withhold   Management
1.2   Elect Director Constantin R. Boden        For       For        Management
1.3   Elect Director Kent P. Dauten             For       For        Management
1.4   Elect Director Arthur D. Little           For       For        Management
1.5   Elect Director C. Richard Reese           For       For        Management
1.6   Elect Director Vincent J. Ryan            For       For        Management
1.7   Elect Director Laurie A. Tucker           For       For        Management
2     Ratify Auditors                           For       For        Management


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ITT EDUCATIONAL SERVICES, INC.

Ticker:       ESI            Security ID:  45068B109
Meeting Date: MAY 8, 2007    Meeting Type: Annual
Record Date:  MAR 9, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Rene R. Champagne          For       For        Management
1.2   Elect Director John F. Cozzi              For       For        Management
1.3   Elect Director Kevin M. Modany            For       For        Management
1.4   Elect Director Thomas I. Morgan           For       For        Management
2     Ratify Auditors                           For       For        Management


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JANUS CAPITAL GROUP INC.

Ticker:       JNS            Security ID:  47102X105
Meeting Date: MAY 1, 2007    Meeting Type: Annual
Record Date:  MAR 5, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Elect Director G. Andrew Cox              For       For        Management
2     Elect Director Deborah R. Gatzek          For       For        Management
3     Elect Director Robert T. Parry            For       For        Management
4     Elect Director Jock Patton                For       For        Management
5     Ratify Auditors                           For       For        Management


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LAMAR ADVERTISING COMPANY

Ticker:       LAMR           Security ID:  512815101
Meeting Date: MAY 24, 2007   Meeting Type: Annual
Record Date:  APR 2, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director John Maxwell Hamilton      For       For        Management
1.2   Elect Director Robert M. Jelenic          For       For        Management
1.3   Elect Director Stephen P. Mumblow         For       For        Management
1.4   Elect Director Thomas V. Reifenheiser     For       For        Management
1.5   Elect Director Anna Reilly                For       For        Management
1.6   Elect Director Kevin P. Reilly, Jr.       For       For        Management
1.7   Elect Director Wendell Reilly             For       For        Management
2     Ratify Auditors                           For       For        Management


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LEUCADIA NATIONAL CORP.

Ticker:       LUK            Security ID:  527288104
Meeting Date: MAY 15, 2007   Meeting Type: Annual
Record Date:  MAR 29, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Ian M. Cumming             For       For        Management
1.2   Elect Director Paul M. Dougan             For       For        Management
1.3   Elect Director Lawrence D. Glaubinger     For       For        Management
1.4   Elect Director Alan J. Hirschfield        For       For        Management
1.5   Elect Director James E. Jordan            For       For        Management
1.6   Elect Director Jeffrey C. Keil            For       Withhold   Management
1.7   Elect Director J. Clyde Nichols, III      For       For        Management
1.8   Elect Director Joseph S. Steinberg        For       For        Management
2     Increase Authorized Common Stock          For       For        Management
3     Ratify Auditors                           For       For        Management


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LOEWS CORP.

Ticker:       LTR            Security ID:  540424207
Meeting Date: AUG 3, 2006    Meeting Type: Special
Record Date:  JUN 22, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Increase Authorized Common Stock          For       Against    Management
2     Adjust Par Value of Common Stock          For       For        Management


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MEADWESTVACO CORP.

Ticker:       MWV            Security ID:  583334107
Meeting Date: APR 30, 2007   Meeting Type: Annual
Record Date:  MAR 1, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director James M. Kilts             For       For        Management
1.2   Elect Director Douglas S. Luke            For       For        Management
1.3   Elect Director Robert C. McCormack        For       For        Management
1.4   Elect Director Edward M. Straw            For       For        Management
1.5   Elect Director Jane L. Warner             For       For        Management
2     Ratify Auditors                           For       For        Management
3     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors
4     Submit Shareholder Rights Plan (Poison    Against   For        Shareholder
      Pill) to Shareholder Vote


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MONSTER WORLDWIDE, INC.

Ticker:       MNST           Security ID:  611742107
Meeting Date: MAY 30, 2007   Meeting Type: Annual
Record Date:  APR 26, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Salvatore Iannuzzi         For       For        Management
1.2   Elect Director Robert J. Chrenc           For       For        Management
1.3   Elect Director George R. Eisele           For       For        Management
1.4   Elect Director John Gaulding              For       For        Management
1.5   Elect Director Michael Kaufman            For       For        Management
1.6   Elect Director Ronald J. Kramer           For       For        Management
1.7   Elect Director Philip R. Lochner, Jr      For       For        Management
1.8   Elect Director David A. Stein             For       For        Management
2     Ratify Auditors                           For       For        Management


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

NETEASE COM INC

Ticker:       NTES           Security ID:  64110W102
Meeting Date: SEP 7, 2006    Meeting Type: Annual
Record Date:  JUL 21, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     RE-ELECT WILLIAM DING AS A DIRECTOR TO    For       For        Management
      SERVE FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
2     RE-ELECT DONGHUA DING AS A DIRECTOR TO    For       For        Management
      SERVE FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
3     RE-ELECT LUN FENG AS A DIRECTOR TO SERVE  For       For        Management
      FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
4     RE-ELECT DENNY LEE AS A DIRECTOR TO SERVE For       For        Management
      FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
5     RE-ELECT MICHAEL LEUNG AS A DIRECTOR TO   For       For        Management
      SERVE FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
6     RE-ELECT JOSEPH TONG AS A DIRECTOR TO     For       For        Management
      SERVE FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
7     RE-ELECT MICHAEL TONG AS A DIRECTOR TO    For       For        Management
      SERVE FOR THE ENSUING YEAR AND UNTIL HIS
      SUCCESSOR IS ELECTED AND DULY QUALIFIED.
8     Ratify Auditors                           For       For        Management


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

NII HOLDINGS, INC.

Ticker:       NIHD           Security ID:  62913F201
Meeting Date: MAY 16, 2007   Meeting Type: Annual
Record Date:  APR 5, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director John Donovan               For       For        Management
1.2   Elect Director Steven P. Dussek           For       For        Management
1.3   Elect Director Steven M. Shindler         For       For        Management
2     Ratify Auditors                           For       For        Management


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

NVR, INC.

Ticker:       NVR            Security ID:  62944T105
Meeting Date: MAY 4, 2007    Meeting Type: Annual
Record Date:  MAR 1, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Manuel H. Johnson          For       For        Management
1.2   Elect Director David A. Preiser           For       For        Management
1.3   Elect Director Paul W. Whetsell           For       For        Management
1.4   Elect Director John M. Toups              For       For        Management
2     Ratify Auditors                           For       For        Management
3     Company Specific--Provide for Majority    For       For        Management
      Voting Standard of Election of Directors
      in Uncontested Elections


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

PENTAIR, INC.

Ticker:       PNR            Security ID:  709631105
Meeting Date: MAY 3, 2007    Meeting Type: Annual
Record Date:  MAR 5, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Glynis A. Bryan            For       For        Management
1.2   Elect Director William T. Monahan         For       For        Management
1.3   Elect Director T. Michael Glenn           For       For        Management
1.4   Elect Director David H. Y. Ho             For       For        Management
2     To Amend Articles of Incorporation and By For       For        Management
      Laws - Majority Vote for the Election of
      Directors
3     Fix Number of and Elect Directors         For       For        Management
4     Amend EEO Statement to Include Reference  Against   For        Shareholder
      to Sexual Orientation
5     Prepare a Sustainability Report           Against   Against    Shareholder
6     Ratify Auditors                           For       For        Management


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

PEOPLES BANK

Ticker:       PBCT           Security ID:  710198102
Meeting Date: APR 5, 2007    Meeting Type: Special
Record Date:  FEB 5, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Approve Reorganization Plan               For       For        Management
2     Establishment and Funding of the People's For       Against    Management
      Community Foundation


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

PETSMART

Ticker:       PETM           Security ID:  716768106
Meeting Date: JUN 20, 2007   Meeting Type: Annual
Record Date:  APR 23, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Rakesh Gangwal             For       For        Management
1.2   Elect Director Barbara A. Munder          For       For        Management
1.3   Elect Director Thomas G. Stemberg         For       For        Management
2     Ratify Auditors                           For       For        Management
3     Amend Executive Incentive Bonus Plan      For       For        Management


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

QUESTAR CORP.

Ticker:       STR            Security ID:  748356102
Meeting Date: MAY 15, 2007   Meeting Type: Annual
Record Date:  MAR 19, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Teresa Beck                For       For        Management
1.2   Elect Director R.D. Cash                  For       For        Management
1.3   Elect Director  Robert E. McKee           For       For        Management
1.4   Elect Director Gary G. Michael            For       For        Management
1.5   Elect Director Charles B. Stanley         For       For        Management


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

REALOGY CORP

Ticker:       H              Security ID:  75605E100
Meeting Date: MAR 30, 2007   Meeting Type: Special
Record Date:  FEB 20, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Approve Merger Agreement                  For       For        Management
2     Adjourn Meeting                           For       For        Management


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

RED HAT, INC.

Ticker:       RHAT           Security ID:  756577102
Meeting Date: AUG 17, 2006   Meeting Type: Annual
Record Date:  JUN 20, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director W. Steve Albrecht          For       For        Management
1.2   Elect Director Marye Anne Fox             For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Executive Incentive Bonus Plan    For       For        Management
4     Amend Omnibus Stock Plan                  For       For        Management


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

SALESFORCE.COM, INC.

Ticker:       CRM            Security ID:  79466L302
Meeting Date: JUL 6, 2006    Meeting Type: Annual
Record Date:  MAY 16, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Craig Ramsey               For       For        Management
1.2   Elect Director Sanford R. Robertson       For       For        Management
2     Ratify Auditors                           For       For        Management


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

SOUTHWESTERN ENERGY CO.

Ticker:       SWN            Security ID:  845467109
Meeting Date: MAY 10, 2007   Meeting Type: Annual
Record Date:  MAR 16, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Lewis E. Epley, Jr.        For       For        Management
1.2   Elect Director Robert L. Howard           For       For        Management
1.3   Elect Director Harold M. Korell           For       For        Management
1.4   Elect Director Vello A. Kuuskraa          For       For        Management
1.5   Elect Director Kenneth R. Mourton         For       For        Management
1.6   Elect Director Charles E. Scharlau        For       For        Management
2     Ratify Auditors                           For       For        Management


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

ST. JOE COMPANY, THE

Ticker:       JOE            Security ID:  790148100
Meeting Date: MAY 15, 2007   Meeting Type: Annual
Record Date:  MAR 30, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael L. Ainslie         For       For        Management
1.2   Elect Director Hugh M. Durden             For       For        Management
1.3   Elect Director Thomas A. Fanning          For       For        Management
1.4   Elect Director Harry H. Frampton, III     For       For        Management
1.5   Elect Director Adam W. Herbert, Jr.       For       For        Management
1.6   Elect Director Delores M. Kesler          For       For        Management
1.7   Elect Director John S. Lord               For       For        Management
1.8   Elect Director Walter L. Revell           For       For        Management
1.9   Elect Director Peter S. Rummell           For       For        Management
1.10  Elect Director William H. Walton, III     For       For        Management
2     Ratify Auditors                           For       For        Management


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

STERICYCLE, INC.

Ticker:       SRCL           Security ID:  858912108
Meeting Date: MAY 16, 2007   Meeting Type: Annual
Record Date:  MAR 19, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Jack W. Schuler            For       For        Management
1.2   Elect Director Mark C. Miller             For       For        Management
1.3   Elect Director Rod F. Dammeyer            For       For        Management
1.4   Elect Director William K. Hall            For       For        Management
1.5   Elect Director Jonathan T. Lord           For       For        Management
1.6   Elect Director John Patience              For       For        Management
1.7   Elect Director Thomas R. Reusche          For       For        Management
1.8   Elect Director Peter Vardy                For       For        Management
2     Increase Authorized Common Stock          For       For        Management
3     Ratify Auditors                           For       For        Management


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

TECHNE CORP.

Ticker:       TECH           Security ID:  878377100
Meeting Date: OCT 26, 2006   Meeting Type: Annual
Record Date:  SEP 15, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Fix Number of Directors                   For       For        Management
2.1   Elect Director Thomas E. Oland            For       For        Management
2.2   Elect Director Roger C. Lucas, Ph.D.      For       For        Management
2.3   Elect Director Howard V. O'Connell        For       For        Management
2.4   Elect Director G. Arthur Herbert          For       For        Management
2.5   Elect Director R.C. Steer, M.D., Ph.D.    For       For        Management
2.6   Elect Director Robert V. Baumgartner      For       For        Management
2.7   Elect Director C.A. Dinarello, M.D.       For       For        Management


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

TESSERA TECHNOLOGIES, INC.

Ticker:       TSRA           Security ID:  88164L100
Meeting Date: MAY 17, 2007   Meeting Type: Annual
Record Date:  MAR 26, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Robert J. Boehlke          For       For        Management
1.2   Elect Director John B. Goodrich           For       Withhold   Management
1.3   Elect Director Al S. Joseph, Ph.D.        For       For        Management
1.4   Elect Director Bruce M. McWilliams, Ph.D. For       For        Management
1.5   Elect Director David C. Nagel, Ph.D.      For       For        Management
1.6   Elect Director Henry R. Nothhaft          For       For        Management
1.7   Elect Director Robert A. Young, Ph.D.     For       For        Management
2     Approve Executive Incentive Bonus Plan    For       For        Management
3     Ratify Auditors                           For       For        Management


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

ULTRA PETROLEUM CORP.

Ticker:       UPL            Security ID:  903914109
Meeting Date: JUN 14, 2007   Meeting Type: Annual
Record Date:  MAY 7, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael D. Watford         For       For        Management
1.2   Elect Director W. Charles Helton          For       For        Management
1.3   Elect Director Stephen J. McDaniel        For       For        Management
1.4   Elect Director Robert E. Rigney           For       For        Management
1.5   Elect Director James C. Roe               For       For        Management
2     Ratify Ernst & Young LLP as Auditors      For       For        Management
3     Prepare a Climate Change Report           Against   Against    Shareholder


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

URBAN OUTFITTERS, INC.

Ticker:       URBN           Security ID:  917047102
Meeting Date: MAY 22, 2007   Meeting Type: Annual
Record Date:  MAR 26, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Richard A. Hayne           For       For        Management
1.2   Elect Director Scott A. Belair            For       For        Management
1.3   Elect Director Harry S. Cherken, Jr.      For       Withhold   Management
1.4   Elect Director Joel S. Lawson III         For       For        Management
1.5   Elect Director Glen T. Senk               For       For        Management
1.6   Elect Director Robert H. Strouse          For       For        Management
2     Adopt ILO Based Code of Conduct           Against   Against    Shareholder


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

WEIGHT WATCHERS INTERNATIONAL, INC.

Ticker:       WTW            Security ID:  948626106
Meeting Date: MAY 7, 2007    Meeting Type: Annual
Record Date:  MAR 27, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Philippe J. Amouyal        For       For        Management
1.2   Elect Director David P. Kirchhoff         For       For        Management
1.3   Elect Director Sam K. Reed                For       For        Management
2     Ratify Auditors                           For       For        Management


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

WENDY'S INTERNATIONAL, INC.

Ticker:       WEN            Security ID:  950590109
Meeting Date: APR 26, 2007   Meeting Type: Annual
Record Date:  MAR 5, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Janet Hill                 For       For        Management
1.2   Elect Director John R. Thompson           For       For        Management
1.3   Elect Director J. Randolph Lewis          For       For        Management
1.4   Elect Director Stuart I. Oran             For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Executive Incentive Bonus Plan    For       For        Management
4     Approve Omnibus Stock Plan                For       For        Management
5     Label Genetically Modified Organisms      Against   Against    Shareholder
6     Prepare Sustainability Report             Against   Against    Shareholder
7     Report on Animal Welfare Standards        Against   Against    Shareholder


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

WYNN RESORTS LTD

Ticker:       WYNN           Security ID:  983134107
Meeting Date: MAY 8, 2007    Meeting Type: Annual
Record Date:  MAR 29, 2007

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Stephen A. Wynn            For       For        Management
1.2   Elect Director Alvin V. Shoemaker         For       For        Management
1.3   Elect Director D. Boone Wayson            For       For        Management
2     Amend Executive Incentive Bonus Plan      For       For        Management
3     Ratify Auditors                           For       For        Management
========== END NPX REPORT


                                   SIGNATURES

     Pursuant to the requirements of the Investment Company Act of 1940, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

(Registrant): Morgan Stanley Developing Growth Securities Trust
              -------------------------------------------------

By (Signature and Title):


                                      /s/ Ronald E. Robison
                 ---------------------------------------------------------------
                 President and Principal Executive Officer - Office of the Funds

Date August 28, 2007


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