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