United States Securities and Exchange Commission Washington, DC 20549 Form 13 F Report for the Calendar Year or Quarter Ended: March 31, 2011 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 27, 2011 I am signing this report as required by the Securities Exchange Act of 1934. FORM 13F March 31, 2011 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 ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- ALEXION PHARMACEUTICALS, INC. COM 015351109 1480 15000 SH SOLE 15000 ALLERGAN INC. COM 018490102 7940 111800 SH SOLE 111800 AMAZON.COM INC. COM 023135106 1045 5800 SH SOLE 5800 AT&T INC COM 00206R102 6428 210000 SH SOLE 210000 CISCO SYSTEMS INC COM 17275R102 2477 144440 SH SOLE 144440 COVIDIEN COM G2554F113 2597 50000 SH SOLE 50000 ELECTRONIC ARTS COM 285512109 2148 110000 SH SOLE 110000 EXXON COM 30231G102 9338 111000 SH SOLE 111000 GENERAL ELECTRIC CO. COM 369604103 4010 200000 SH SOLE 200000 GOOGLE INC - CL A COM 38259P508 6452 10996 SH SOLE 10996 INTEL CORP COM 458140100 4116 203960 SH SOLE 203960 INTUTIVE SURGICAL, INC. COM 46120E602 4002 12000 SH SOLE 12000 MERCK & CO. INC. COM 58933Y105 3004 91000 SH SOLE 91000 MICROSOFT CORP COM 594918104 4392 173000 SH SOLE 173000 ORACLE CORP COM 68389X105 8024 240000 SH SOLE 240000 PETROLEO BRASILEIRO S.A.-ADR COM 71654V408 20215 500000 SH SOLE 500000 VERIZON COMMUNICATION INC. COM 92343V104 7323 190000 SH SOLE 190000 VMWARE INC-CLASS A COM 928563402 2446 30000 SH SOLE 30000 YUM BRANDS INC COM 988498101 4213 82000 SH SOLE 82000 CONSUMER STAPLES SPDR ETF 81369Y308 77538 2591500 SH SOLE 2591500 IPATH MSCI INDIA INDEX ETF 06739F291 8728 120000 SH SOLE 120000 NASDAQ 100 MFC POWERSHARES ETF 73935A104 67050 1167500 SH SOLE 1167500 OIL SERVICES HOLDRs ETF 678002106 9862 60000 SH SOLE 60000 RUSSELL 2000 INDEX FUND ETF 464287655 53195 632000 SH SOLE 632000 SELECT SECTOR SPDR-CONSUMER DI ETF 81369Y407 95672 2450000 SH SOLE 2450000 SELECT SECTOR SPDR-ENERGY ETF 81369Y506 117232 1470000 SH SOLE 1470000 SELECT SECTOR SPDR-FINANCIAL ETF 81369Y605 197431 12045800 SH SOLE 12045800 SELECT SECTOR SPDR-HEALTH CARE ETF 81369Y209 82775 2500000 SH SOLE 2500000 SELECT SECTOR SPDR-INDUSTRIAL ETF 81369Y704 102147 2712000 SH SOLE 2712000 SELECT SECTOR SPDR-MATERIALS ETF 81369Y100 35738 893000 SH SOLE 893000 SELECT SECTOR SPDR-TECHNOLOGY ETF 81369Y803 66355 2546000 SH SOLE 2546000 SELECT SECTOR SPDR-UTILITIES ETF 81369Y886 13608 427000 SH SOLE 427000 SPDR-S&P 500 INDEX ETF 78462F103 5436 41000 SH SOLE 41000