UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 13F

                               Form 13F COVER PAGE

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

Check here if Amendment  [ ]; Amendment Number:
     This Amendment (Check only one.):  [ ] is a restatement.
                                        [ ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:     Marsico Capital Management, LLC
Address:  1200 17th Street, Suite 1600
          Denver, Colorado 80202

Form 13F File Number:  028-06748

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:     Neil L. Gloude
Title:    Executive Vice President
Phone:    303-454-5600

Signature, Place, and Date of Signing:

      /s/ NEIL L GLOUDE                Denver, CO                May 15, 2013
      -----------------                ----------                ------------
         [Signature]                  [City, State]                 [Date]

Report Type (Check only one.):

[X]   13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
      are reported in this report.)

[ ]   13F NOTICE. (Check here if no holdings reported are in this report, and
      all holdings are reported by other reporting manager(s).)

[ ]   13F COMBINATION REPORT. (Check here if a portion of the holdings for this
      reporting manager are reported in this report and a portion are reported
      by other reporting manager(s).)





                              Form 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:                 0
                                         -----------

Form 13F Information Table Entry Total:          106
                                         -----------

Form 13F Information Table Value Total:  $20,353,037
                                         -----------
                                         (thousands)

List of Other Included Managers:

N/A







         COLUMN 1              COLUMN 2     COLUMN 3   COLUMN 4       COLUMN 5        COLUMN 6  COLUMN 7          COLUMN 8
--------------------------- --------------- --------- ---------- ------------------- ---------- -------- ---------------------------
                                                                                                              VOTING AUTHORITY
                               TITLE OF                 VALUE     SHRS OR   SH/ PUT/ INVESTMENT  OTHER   ---------------------------
      NAME OF ISSUER             CLASS        CUSIP    (x$1000)   PRN AMT   PRN CALL DISCRETION MANAGERS    SOLE    SHARED   NONE
--------------------------- --------------- --------- ---------- ---------- --- ---- ---------- -------- ---------- ------ ---------
                                                                                          
ACCENTURE PLC               CL A            G1151C101    333,284  4,387,059 SH       Sole                 2,603,323      0 1,783,736
ALKERMES PLC                SHS             G01767105     22,526    950,032 SH       Sole                   290,981      0   659,051
AMERICAN EXPRESS CO         COM             025816109    402,558  5,967,366 SH       Sole                 3,901,015      0 2,066,351
AMERICAN INTERNATIONAL
  GROUP INC                 COM NEW         026874784    225,824  5,817,221 SH       Sole                 3,547,808      0 2,269,413
AMERICAN TOWER CORPORATION  COM             03027X100    338,410  4,399,512 SH       Sole                 2,717,988      0 1,681,524
ANHEUSER-BUSCH INBEV        SPONS ADR       03524A108    333,955  3,354,641 SH       Sole                 1,926,814      0 1,427,827
AUTOZONE INC                COM             053332102    544,179  1,371,523 SH       Sole                   870,348      0   501,175
BAIDU INC                   SPONS ADR REP A 056752108     24,828    283,107 SH       Sole                   180,624      0   102,483
BANKUNITED INC              COM             06652K103     24,717    964,745 SH       Sole                   458,416      0   506,329
BIOGEN IDEC INC             COM             09062X103    899,301  4,661,763 SH       Sole                 2,976,775      0 1,684,988
BIOMARIN PHARMACEUTICAL INC COM             09061G101     12,958    208,118 SH       Sole                    64,854      0   143,264
BLOOMIN' BRANDS INC         COM             094235108      9,609    537,716 SH       Sole                   437,372      0   100,344
BRISTOL MYERS SQUIBB
  COMPANY                   COM             110122108    772,454 18,753,434 SH       Sole                12,305,982      0 6,447,452
CANADIAN NATIONAL RAILWAY   COM             136375102     53,253    530,938 SH       Sole                   338,025      0   192,913
CAPITAL ONE FINANCIAL CORP  COM             14040H105     33,496    609,578 SH       Sole                   341,310      0   268,268
CBS CORP                    CL B            124857202    358,954  7,688,034 SH       Sole                 5,483,226      0 2,204,808
CELGENE CORP                COM             151020104    315,793  2,724,472 SH       Sole                 1,651,598      0 1,072,874
CHIPOTLE MEXICAN GRILL      COM             169656105    245,162    752,330 SH       Sole                   448,647      0   303,683
CHURCH & DWIGHT CO INC      COM             171340102     18,021    278,835 SH       Sole                    85,514      0   193,321
CITIGROUP INC               COM NEW         172967424    554,764 12,539,869 SH       Sole                 8,167,963      0 4,371,906
CITY NATIONAL CORP          COM             178566105     22,321    378,895 SH       Sole                   117,597      0   261,298
COGNIZANT TECH SOLUTIONS
  CORP                      CL A            192446102     14,888    194,341 SH       Sole                   159,636      0    34,705
COLUMBIA BANKING SYSTEM INC COM             197236102      8,738    397,560 SH       Sole                   113,813      0   283,747
COMCAST CORP                CL A            20030N101    437,434 10,412,617 SH       Sole                 6,123,960      0 4,288,657
CONSTELLATION BRANDS        CL A            21036P108     46,621    978,610 SH       Sole                   523,110      0   455,500
COPART INC                  COM             217204106     16,145    470,964 SH       Sole                   143,907      0   327,057
CSX CORP                    COM             126408103    134,247  5,450,560 SH       Sole                 3,985,399      0 1,465,161
CUMMINS INC                 COM             231021106    240,446  2,076,212 SH       Sole                 1,301,551      0   774,661
DANAHER CORP                COM             235851102    139,588  2,245,991 SH       Sole                 1,604,874      0   641,117
DOLLAR TREE INC             COM             256746108     42,261    872,605 SH       Sole                   271,334      0   601,271
DUNKIN BRANDS GROUP INC     COM             265504100     31,208    846,194 SH       Sole                   310,803      0   535,391
EATON CORP PLC              SHS             G29183103      4,293     70,093 SH       Sole                    56,100      0    13,993
EBAY INC                    COM             278642103    758,280 13,985,241 SH       Sole                 9,331,876      0 4,653,365
EQUINIX INC                 COM NEW         29444U502    364,928  1,687,057 SH       Sole                 1,067,949      0   619,108
EXPEDIA INC                 COM NEW         30212P303     10,591    176,498 SH       Sole                    54,959      0   121,539
EXPRESS SCRIPTS HOLDING CO  COM             30219G108     17,739    307,694 SH       Sole                   252,749      0    54,945
FACEBOOK INC                CL A            30303M102     14,503    566,959 SH       Sole                   172,592      0   394,367
FLEETCOR TECHNOLOGIES INC   COM             339041105     23,239    303,100 SH       Sole                    94,178      0   208,922
FOOT LOCKER INC             COM             344849104     28,487    831,988 SH       Sole                   484,129      0   347,859
GENESEE & WYOMING INC       CL A            371559105     35,682    383,219 SH       Sole                   119,723      0   263,496
GILEAD SCIENCES INC         COM             375558103  1,075,587 21,982,156 SH       Sole                13,263,476      0 8,718,680
GOOGLE INC                  CL A            38259P508    723,959    911,753 SH       Sole                   542,455      0   369,298
GREEN MOUNTAIN COFFEE
  ROASTERS                  COM             393122106     45,874    808,211 SH       Sole                   422,502      0   385,709
HALLIBURTON CO              COM             406216101     17,172    424,935 SH       Sole                   133,444      0   291,491
HOLOGIC INC                 COM             436440101     40,903  1,809,871 SH       Sole                 1,007,382      0   802,489
HOME DEPOT INC              COM             437076102    489,811  7,019,359 SH       Sole                 4,053,762      0 2,965,597
IHS INC                     CL A            451734107     31,994    305,520 SH       Sole                    94,827      0   210,693
IMAX CORPORATION            COM             45245E109     39,390  1,473,641 SH       Sole                 1,139,045      0   334,596
INTUIT INC                  COM             461202103    115,192  1,754,634 SH       Sole                 1,262,218      0   492,416
INTUITIVE SURGICAL INC      COM NEW         46120E602    172,849    351,900 SH       Sole                   222,492      0   129,408
JPMORGAN CHASE & CO         COM             46625H100     14,886    313,644 SH       Sole                         0      0   313,644
KINDER MORGAN INC           COM             49456B101    398,859 10,311,757 SH       Sole                 6,680,002      0 3,631,755
KINDER MORGAN INC           WARRANT         49456B119      1,716    333,827 SH       Sole                   286,018      0    47,809
LIBERTY GLOBAL INC          COM SER A       530555101    176,562  2,405,473 SH       Sole                 1,745,804      0   659,669
LIBERTY GLOBAL INC          COM SER C       530555309    154,736  2,254,648 SH       Sole                 1,535,537      0   719,111
LOWE'S COS INC              COM             548661107    548,182 14,456,280 SH       Sole                 9,270,023      0 5,186,257
LULULEMON ATHLETICA INC     COM             550021109    135,662  2,175,807 SH       Sole                 1,571,023      0   604,784
LUXOTTICA GROUP SPA         SPONS ADR       55068R202      6,311    125,500 SH       Sole                    99,716      0    25,784
LYONDELLBASELL INDUSTRIES
  NV                        SHS A           N53745100    205,986  3,254,640 SH       Sole                 2,115,699      0 1,138,941
MASTERCARD INC              CL A            57636Q104     44,504     82,242 SH       Sole                    25,292      0    56,950
MCDONALDS CORP              COM             580135101    472,406  4,738,755 SH       Sole                 2,969,004      0 1,769,751
MERCADOLIBRE INC            COM             58733R102     26,492    274,362 SH       Sole                   175,065      0    99,297
MONDELEZ INTERNATIONAL INC  CL A            609207105     67,078  2,191,381 SH       Sole                 1,171,364      0 1,020,017
MONRO MUFFLER BRAKE INC     COM             610236101      8,773    220,920 SH       Sole                    67,610      0   153,310
MONSANTO CO                 COM             61166W101    607,258  5,748,918 SH       Sole                 3,508,408      0 2,240,510
MOODY'S CORP                COM             615369105      8,087    151,677 SH       Sole                   123,880      0    27,797
MORGAN STANLEY              COM NEW         617446448     11,833    538,392 SH       Sole                   165,052      0   373,340
MOTOROLA SOLUTIONS INC      COM NEW         620076307     89,816  1,402,711 SH       Sole                 1,007,902      0   394,809
MRC GLOBAL INC              COM             55345K103     48,354  1,468,362 SH       Sole                   725,770      0   742,592
NATURAL GROCERS BY VITAMIN
  COTTAGE                   COM             63888U108      3,058    135,601 SH       Sole                   111,288      0    24,313
NIELSEN HOLDINGS N.V.       COM             N63218106     34,430    961,201 SH       Sole                   292,995      0   668,206
NIKE INC                    CL B            654106103    423,758  7,181,129 SH       Sole                 4,773,066      0 2,408,063
NORWEGIAN CRUISE LINE
  HOLDINGS                  SHS             G66721104      9,953    335,684 SH       Sole                    94,397      0   241,287
PENTAIR LTD                 SHS             H6169Q108    338,784  6,422,456 SH       Sole                 4,253,331      0 2,169,125
PERRIGO COMPANY             COM             714290103     54,255    456,958 SH       Sole                   291,058      0   165,900
PHILLIPS 66                 COM             718546104     15,822    226,129 SH       Sole                   184,683      0    41,446
PRECISION CASTPARTS CORP    COM             740189105    502,561  2,650,358 SH       Sole                 1,640,677      0 1,009,681
PRICELINE.COM INC           COM NEW         741503403    161,381    234,589 SH       Sole                   171,246      0    63,343
PRICESMART INC              COM             741511109      4,013     51,556 SH       Sole                    41,317      0    10,239
QUALCOMM INC                COM             747525103    141,178  2,108,718 SH       Sole                 1,544,876      0   563,842
RALPH LAUREN CORP           CL A            751212101     24,603    145,314 SH       Sole                    44,379      0   100,935
RED HAT INC                 COM             756577102     39,917    789,497 SH       Sole                   387,230      0   402,267
ROSS STORES INC             COM             778296103     28,943    477,448 SH       Sole                   148,216      0   329,232
SALESFORCE.COM INC          COM             79466L302     20,670    115,583 SH       Sole                    35,213      0    80,370
SCHLUMBERGER LIMITED        COM             806857108    535,417  7,149,386 SH       Sole                 4,609,737      0 2,539,649
SEAGATE TECHNOLOGY PLC      SHS             G7945M107     40,130  1,097,651 SH       Sole                   700,841      0   396,810
STARBUCKS CORPORATION       COM             855244109    322,729  5,665,889 SH       Sole                 3,729,410      0 1,936,479
STARWOOD HOTELS & RESORTS   COM             85590A401    274,808  4,312,065 SH       Sole                 3,097,132      0 1,214,933
TAIWAN SEMICONDUCTOR MFG
  LTD                       SPONS ADR       874039100     23,476  1,365,651 SH       Sole                   868,767      0   496,884
TESLA MOTORS INC            COM             88160R101     36,070    951,951 SH       Sole                   552,266      0   399,685
TJX COMPANIES INC           COM             872540109    465,996  9,967,829 SH       Sole                 5,932,546      0 4,035,283
TRACTOR SUPPLY COMPANY      COM             892356106     21,514    206,606 SH       Sole                    64,387      0   142,219
TRANSDIGM GROUP INC         COM             893641100     46,757    305,762 SH       Sole                   122,343      0   183,419
UNION PACIFIC CORP          COM             907818108    382,628  2,686,805 SH       Sole                 1,749,583      0   937,222
UNITED RENTALS INC          COM             911363109    104,372  1,898,711 SH       Sole                 1,274,732      0   623,979
VERISIGN INC                COM             92343E102     18,408    389,330 SH       Sole                   118,911      0   270,419
VIACOM INC                  CL B            92553P201     51,030    828,818 SH       Sole                   417,236      0   411,582
VISA INC                    COM CL A        92826C839    596,905  3,514,513 SH       Sole                 2,156,188      0 1,358,325
W.W. GRAINGER INC           COM             384802104    295,183  1,312,040 SH       Sole                   881,706      0   430,334
WAL-MART STORES INC         COM             931142103    408,438  5,458,214 SH       Sole                 3,545,889      0 1,912,325
WALT DISNEY CO              COM             254687106     42,239    743,637 SH       Sole                         0      0   743,637
WELLS FARGO & COMPANY       COM             949746101    591,103 15,980,070 SH       Sole                10,471,487      0 5,508,583
WHOLE FOODS MARKET INC      COM             966837106        668      7,695 SH       Sole                     7,695      0         0
WYNN RESORTS LTD            COM             983134107    516,608  4,127,576 SH       Sole                 2,590,692      0 1,536,884
YAHOO! INC                  COM             984332106     17,055    724,806 SH       Sole                   405,419      0   319,387
YANDEX NV                   SHS CL A        N97284108     62,261  2,692,964 SH       Sole                 1,875,611      0   817,353