Viking Global Investors as of March 31, 2013
Portfolio Holdings for Viking Global Investors
Viking Global Investors holds 0 positions in its portfolio as reported in the March 2013 quarterly 13F filing
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VALUE SHRS OR SH/ PUT/ INVSTMT OTH VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP X($1000) PRN AMT PRN CALL DSCRETN MGR SOLE SHARED NONE
ACE LTD SHS H0023R105 197,744 2,222,600 SH SOLE 2222600
ADOBE SYS INC COM 00724F101 309,912 7,121,970 SH SOLE 7121970
AETNA INC NEW COM 00817Y108 65,638 1,284,000 SH SOLE 1284000
ALLSTATE CORP COM 020002101 225,790 4,601,400 SH SOLE 4601400
ALEXION PHARMACEUTICALS INC COM 015351109 871,869 9,462,442 SH SOLE 9462442
ATHENAHEALTH INC COM 04685W103 33,556 345,800 SH SOLE 345800
BOEING CO COM 097023105 1,062,400 12,375,078 SH SOLE 12375078
RESEARCH IN MOTION LTD COM 760975102 219,395 15,188,363 SH SOLE 15188363
BIOGEN IDEC INC COM 09062X103 247,867 1,286,835 SH SOLE 1286835
CITIGROUP INC COM NEW 172967424 239,387 5,411,100 SH SOLE 5411100
CARDINAL HEALTH INC COM 14149Y108 73,213 1,759,100 SH SOLE 1759100
CBS CORP NEW CL B 124857202 198,065 4,242,149 SH SOLE 4242149
CROWN CASTLE INTL CORP COM 228227104 316,271 4,541,525 SH SOLE 4541525
CELGENE CORP COM 151020104 49,366 425,900 SH SOLE 425900
COLFAX CORP COM 194014106 106,977 2,298,609 SH SOLE 2298609
COMCAST CORP NEW CL A 20030N101 629,106 14,985,855 SH SOLE 14985855
CAPITAL ONE FINL CORP COM 14040H105 595,315 10,833,760 SH SOLE 10833760
CARTER INC COM 146229109 196,372 3,428,887 SH SOLE 3428887
CEMEX SAB DE CV SPON ADR NEW 151290889 542,290 44,413,658 SH SOLE 44413658
COMMUNITY HEALTH SYS INC NEW COM 203668108 79,426 1,676,009 SH SOLE 1676009
DANAHER CORP DEL COM 235851102 816,356 13,135,254 SH SOLE 13135254
DELEK US HLDGS INC COM 246647101 22,263 564,200 SH SOLE 564200
DAVITA HEALTHCARE PARTNERS I COM 23918K108 13,111 110,559 SH SOLE 110559
LAUDER ESTEE COS INC CL A 518439104 256,039 3,998,747 SH SOLE 3998747
ELAN PLC ADR 284131208 110,594 9,372,400 SH SOLE 9372400
EASTMAN CHEM CO COM 277432100 219,559 3,142,396 SH SOLE 3142396
EQUINIX INC COM NEW 29444U502 93,173 430,741 SH SOLE 430741
EATON CORP PLC SHS G29183103 62,064 1,013,300 SH SOLE 1013300
EXPEDIA INC DEL COM NEW 30212P303 81,241 1,353,688 SH SOLE 1353688
GOLDMAN SACHS GROUP INC COM 38141G104 90,041 611,900 SH SOLE 611900
HEWLETT PACKARD CO COM 428236103 249,954 10,484,671 SH SOLE 10484671
BLOCK H & R INC COM 093671105 744,331 25,300,178 SH SOLE 25300178
INTERCONTINENTALEXCHANGE INC COM 45865V100 222,867 1,366,700 SH SOLE 1366700
ILLUMINA INC COM 452327109 10,822 200,500 SH SOLE 200500
INTUITIVE SURGICAL INC COM NEW 46120E602 908,776 1,850,153 SH SOLE 1850153
MICHAEL KORS HLDGS LTD SHS G60754101 682,616 12,020,005 SH SOLE 12020005
LIBERTY GLOBAL INC COM SER A 530555101 31,619 430,900 SH SOLE 430900
LOWES COS INC COM 548661107 34,776 917,100 SH SOLE 917100
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 830,406 13,120,665 SH SOLE 13120665
MASTERCARD INC CL A 57636Q104 269,137 497,362 SH SOLE 497362
MOODYS CORP COM 615369105 91,556 1,717,114 SH SOLE 1717114
MEDIVATION INC COM 58501N101 42,294 904,500 SH SOLE 904500
MONSANTO CO NEW COM 61166W101 52,298 495,112 SH SOLE 495112
MARATHON PETE CORP COM 56585A102 255,162 2,847,800 SH SOLE 2847800
MOTOROLA SOLUTIONS INC COM NEW 620076307 110,221 1,721,400 SH SOLE 1721400
NATIONAL OILWELL VARCO INC COM 637071101 188,056 2,658,043 SH SOLE 2658043
NEWELL RUBBERMAID INC COM 651229106 81,719 3,131,000 SH SOLE 3131000
NXP SEMICONDUCTORS N V COM N6596X109 103,909 3,430,500 SH SOLE 3430500
ONCOTHYREON INC COM 682324108 7,677 3,700,115 SH SOLE 3700115
QUALCOMM INC COM 747525103 578,261 8,638,499 SH SOLE 8638499
SANDISK CORP COM 80004C101 109,243 1,987,686 SH SOLE 1987686
SAREPTA THERAPEUTICS INC COM 803607100 25,522 690,731 SH SOLE 690731
TIME WARNER INC COM NEW 887317303 1,288,619 22,364,094 SH SOLE 22364094
UNIVERSAL HLTH SVCS INC CL B 913903100 167,720 2,625,972 SH SOLE 2625972
VISA INC COM CL A 92826C839 440,412 2,593,100 SH SOLE 2593100
VALERO ENERGY CORP NEW COM 91913Y100 305,547 6,716,807 SH SOLE 6716807
VERISK ANALYTICS INC CL A 92345Y106 55,680 903,617 SH SOLE 903617
VERTEX PHARMACEUTICALS INC COM 92532F100 42,904 780,500 SH SOLE 780500
VALEANT PHARMACEUTICALS INTL COM 91911K102 373,725 4,981,683 SH SOLE 4981683
WILLIAMS COS INC DEL COM 969457100 242,703 6,478,991 SH SOLE 6478991
XILINX INC COM 983919101 103,371 2,708,200 SH SOLE 2708200
S REPORT SUMMARY 61 # OF DATA RECORDS