United States
Securities and Exchange Commission
Washington, DC  20549

Form 13 F

Report for the Calendar Year or Quarter Ended:			March 31, 2012

Report type:	13F Holdings Report

Institutional Investment Manager Filing this Report:

Name:		Lockheed Martin Investment Management Company
		6901 Rockledge Drive, 4th 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, 2012




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


							   FORM 13F
						        March 31, 2012



                                                                  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     1674    37600 SH       SOLE                    37600
ALEXION PHARMACEUTICALS, INC.  COM              015351109     2786    30000 SH       SOLE                    30000
ALLERGAN INC.                  COM              018490102     3569    37400 SH       SOLE                    37400
APPLE INC                      COM              037833100     6715    11200 SH       SOLE                    11200
AT&T INC                       COM              00206R102    12211   391000 SH       SOLE                   391000
BALTIC TRADING                 COM              Y0553W103      150    36131 SH       SOLE                    36131
BRISTOL MYERS SQUIBB           COM              110122108     2700    80000 SH       SOLE                    80000
CITRIX SYSTEM                  COM              177376100     1862    23600 SH       SOLE                    23600
EXXON                          COM              30231G102    13270   153000 SH       SOLE                   153000
FOREST LABORATORIES            COM              345838106     3469   100000 SH       SOLE                   100000
GOOGLE INC - CL A              COM              38259P508      923     1440 SH       SOLE                     1440
HOLOGIC, INC.                  COM              436440101     1552    72000 SH       SOLE                    72000
HUMAN GENOME SCIENCES          COM              444903108      536    65000 SH       SOLE                    65000
ILLUMINA, INC                  COM              452327109     1315    25000 SH       SOLE                    25000
INFORMATICA CORP               COM              45666Q102     2645    50000 SH       SOLE                    50000
INTUTIVE SURGICAL, INC.        COM              46120E602     1679     3100 SH       SOLE                     3100
JOHNSON & JOHNSON              COM              478160104     3958    60000 SH       SOLE                    60000
JUNIPER NETWORKS               COM              48203R104     4576   200000 SH       SOLE                   200000
LINKEDIN CORP                  COM              53578A108      510     5000 SH       SOLE                     5000
OPENTABLE INC.                 COM              68372A104     9106   225000 SH       SOLE                   225000
SHIRE PLC-ADR                  COM              82481R106     2369    25000 SH       SOLE                    25000
VERIZON COMMUNICATION INC.     COM              92343V104     4396   115000 SH       SOLE                   115000
VMWARE INC-CLASS A             COM              928563402     1348    12000 SH       SOLE                    12000
YUM BRANDS INC                 COM              988498101     1196    16800 SH       SOLE                    16800
CONSUMER STAPLES SPDR          ETF              81369Y308    95172  2792600 SH       SOLE                  2792600
DB COMMODITY INDEX FUND        ETF              73935S105    29579  1027060 SH       SOLE                  1027060
ISHARE MSCI EMERGING MARKET IN ETF              464287234    19969   465000 SH       SOLE                   465000
MARKET VECTORS GOLD MINERS     ETF              57060U100      495    10000 SH       SOLE                    10000
MID-CAP INDEX                  ETF              78467Y107     1988    11000 SH       SOLE                    11000
NASDAQ 100 MFC POWERSHARES     ETF              73935A104    53067   785600 SH       SOLE                   785600
PROSHARES ULTRAPRO S&P 500 ETF ETF              74347X864     3392    40000 SH       SOLE                    40000
RUSSELL 2000 INDEX FUND        ETF              464287655     2070    25000 SH       SOLE                    25000
SELECT SECTOR SPDR-CONSUMER DI ETF              81369Y407    93968  2084000 SH       SOLE                  2084000
SELECT SECTOR SPDR-ENERGY      ETF              81369Y506    73989  1031200 SH       SOLE                  1031200
SELECT SECTOR SPDR-FINANCIAL   ETF              81369Y605   128161  8114000 SH       SOLE                  8114000
SELECT SECTOR SPDR-HEALTH CARE ETF              81369Y209    84833  2255600 SH       SOLE                  2255600
SELECT SECTOR SPDR-INDUSTRIAL  ETF              81369Y704    85276  2279200 SH       SOLE                  2279200
SELECT SECTOR SPDR-MATERIALS   ETF              81369Y100    28378   767600 SH       SOLE                   767600
SELECT SECTOR SPDR-TECHNOLOGY  ETF              81369Y803   111417  3694200 SH       SOLE                  3694200
SELECT SECTOR SPDR-UTILITIES   ETF              81369Y886    26915   768000 SH       SOLE                   768000
SPDR GOLD TRUST                ETF              78463V107   334291  2062000 SH       SOLE                  2062000
SPDR-S&P 500 INDEX             ETF              78462F103     5351    38000 SH       SOLE                    38000
VANGUARD EAFE ETF              ETF              921943858    61741  1814300 SH       SOLE                  1814300
VANGUARD EMERGING MARKET       ETF              922042858    19817   455875 SH       SOLE                   455875