United States
Securities and Exchange Commission
Washington, DC  20549

Form 13 F

Report for the Calendar Year or Quarter Ended:			March 31, 2013

Report type:	13F Holdings Report

Institutional Investment Manager Filing this Report:

Name:		Lockheed Martin Investment Management Company
		6901 Rockledge Drive, 9th Floor
		Bethesda, MD  20817

13F File Number #28-2847

Person signing this report on behalf of Reporting Manager:

Name:		Christopher K. Li
Title:		President and Chief Investment Officier
Phone:		301-571-7123

Signature, Place, and Date of Signing:

Christopher K. Li,	Bethesda, MD	April 25, 2013




I am signing this report as required by the Securities Exchange Act of 1934.


							   FORM 13F
						        March 31, 2013



                                                                  FORM 13F INFORMATION TABLE
                                                           VALUE   SHARES/  SH/ PUT/ INVSTMT    OTHER          VOTING AUTHORITY
        NAME OF ISSUER          TITLE OF CLASS    CUSIP   (x$1000) PRN AMT  PRN CALL DSCRETN   MANAGERS     SOLE    SHARED    NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
                                                                                           
AGILENT TECHNOLOGY             COM              00846U101     1742    41500 SH       SOLE                    41500
ALLERGAN INC.                  COM              018490102     7144    64000 SH       SOLE                    64000
APPLE INC                      COM              037833100    13590    30700 SH       SOLE                    30700
AT&T INC                       COM              00206R102     5159   140600 SH       SOLE                   140600
BROADCOM CORP - CL A           COM              111320107     7213   208000 SH       SOLE                   208000
CHEVRON                        COM              166764100     2020    17000 SH       SOLE                    17000
EXXON                          COM              30231G102    11534   128000 SH       SOLE                   128000
FRONTLINE LTD.                 COM              G3682E127       47    20000 SH       SOLE                    20000
GENERAL ELECTRIC CO.           COM              369604103    11347   490800 SH       SOLE                   490800
GOOGLE INC - CL A              COM              38259P508     1048     1320 SH       SOLE                     1320
HUMANA INC                     COM              444859102    10056   145500 SH       SOLE                   145500
INTEL CORP                     COM              458140100     1237    56640 SH       SOLE                    56640
INTERNATIONAL BUSINESS MACHINE COM              459200101     4228    19820 SH       SOLE                    19820
INVENSENSE, INC.               COM              46123D205      801    75000 SH       SOLE                    75000
JP MORGAN                      COM              46625H100     8068   170000 SH       SOLE                   170000
LONGTOP FINANCIAL ADR          COM              543189108        0    94200 SH       SOLE                    94200
MERCK & CO. INC.               COM              58933Y105     7116   161000 SH       SOLE                   161000
MICROSOFT CORP                 COM              594918104     2214    77400 SH       SOLE                    77400
OPENTABLE INC.                 COM              68372A104     3653    58000 SH       SOLE                    58000
PERRIGO CO                     COM              714290103     1069     9000 SH       SOLE                     9000
PVTPL GDR LEVANESE CO FOR DEV  COM              522386101      519    42264 SH       SOLE                    42264
QUALCOMM INC                   COM              747525103     5020    75000 SH       SOLE                    75000
VERIZON COMMUNICATION INC.     COM              92343V104     2875    58500 SH       SOLE                    58500
WARNER CHILCOTT                COM              G94368100     2439   180000 SH       SOLE                   180000
CONSUMER STAPLES SPDR          ETF              81369Y308   106727  2683600 SH       SOLE                  2683600
DB COMMODITY INDEX FUND        ETF              73935S105    41425  1516851 SH       SOLE                  1516851
ISHARES CORE MSCI EMERGING MKT ETF              46434G103    52405  1032400 SH       SOLE                  1032400
ISHARES CORE S&P MIDCAP ETF    ETF              464287507    13180   114537 SH       SOLE                   114537
ISHARES RUSSELL 2000 VALUE     ETF              464287630    13093   156228 SH       SOLE                   156228
ISHARES S&P 500 VALUE INDEX    ETF              464287408    13058   176932 SH       SOLE                   176932
ISHARES S&P MIDCAP 400/GROWTH  ETF              464287606    13072   102017 SH       SOLE                   102017
ISHARES S&P NORTH AMER NATURAL ETF              464287374    90364  2227355 SH       SOLE                  2227355
MID-CAP INDEX                  ETF              78467Y107    23908   114000 SH       SOLE                   114000
NASDAQ 100 MFC POWERSHARES     ETF              73935A104    19181   278100 SH       SOLE                   278100
RUSSELL 2000 INDEX FUND        ETF              464287655     6044    64000 SH       SOLE                    64000
SELECT SECTOR SPDR-AGRICULTURE ETF              57060U605    79221  1463000 SH       SOLE                  1463000
SELECT SECTOR SPDR-CONSUMER DI ETF              81369Y407   103217  1947500 SH       SOLE                  1947500
SELECT SECTOR SPDR-ENERGY      ETF              81369Y506    78303   987300 SH       SOLE                   987300
SELECT SECTOR SPDR-FINANCIAL   ETF              81369Y605   179960  9883000 SH       SOLE                  9883000
SELECT SECTOR SPDR-HEALTH CARE ETF              81369Y209   105940  2302600 SH       SOLE                  2302600
SELECT SECTOR SPDR-INDUSTRIAL  ETF              81369Y704    85115  2038200 SH       SOLE                  2038200
SELECT SECTOR SPDR-MATERIALS   ETF              81369Y100    28417   725300 SH       SOLE                   725300
SELECT SECTOR SPDR-TECHNOLOGY  ETF              81369Y803   145635  4811200 SH       SOLE                  4811200
SELECT SECTOR SPDR-UTILITIES   ETF              81369Y886   138297  3537007 SH       SOLE                  3537007
SPDR S&P METALS&MINING         ETF              78464A755     2625    65000 SH       SOLE                    65000
SPDR S&P OIL & GAS EXPLORATION ETF              78464A730    47212   780500 SH       SOLE                   780500
SPDR-S&P 500 INDEX             ETF              78462F103    40108   256000 SH       SOLE                   256000
VANGUARD EAFE ETF              ETF              921943858    63969  1755950 SH       SOLE                  1755950