The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
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COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
AMN Healthcare Services Inc COM 001744101 4,703 299,581 SH   SOLE   299,581 0 0
Acadia Healthcare Co., Inc. COM 00404A109 22,548 464,911 SH   SOLE   234,025 0 230,886
Actavis Plc. COM G0083B108 10,119 41,937 SH   SOLE   41,937 0 0
Adobe Systems, Inc. COM 00724F101 3,456 49,952 SH   SOLE   49,952 0 0
Air Methods Corp. COM 009128307 27,777 500,029 SH   SOLE   189,230 0 310,799
Akamai Technologies, Inc. COM 00971T101 24,069 402,495 SH   SOLE   33,066 0 369,429
Akorn Inc COM 009728106 37,770 1,041,353 SH   SOLE   452,736 0 588,617
Alexion Pharmaceuticals, Inc. COM 015351109 13,995 84,400 SH   SOLE   33,138 0 51,262
Alkermes, Inc. COM G01767105 4,604 107,393 SH   SOLE   107,393 0 0
Amazon.com, Inc. COM 023135106 3,229 10,014 SH   SOLE   10,014 0 0
American Equity Invt Life HL COM 025676206 16,228 709,273 SH   SOLE   231,544 0 477,729
American Tower Corp COM 03027X100 8,437 90,115 SH   SOLE   90,115 0 0
Anacor Pharmaceuticals Inc COM 032420101 7,549 308,482 SH   SOLE   108,000 0 200,482
Apple, Inc. COM 037833100 9,174 91,058 SH   SOLE   91,058 0 0
Basic Energy Services, Inc. COM 06985P100 10,300 474,875 SH   SOLE   223,916 0 250,959
Berkshire Hathaway, Inc. - Cla COM 084670108 828 4 SH   SOLE   4 0 0
Big Lots Inc COM 089302103 4,532 105,264 SH   SOLE   105,264 0 0
Brookdale Senior Living, Inc. COM 112463104 30,268 939,423 SH   SOLE   351,112 0 588,311
Bruker Corp. COM 116794108 3,724 201,160 SH   SOLE   201,160 0 0
CAI International, Inc. COM 12477X106 16,985 877,793 SH   SOLE   514,563 0 363,230
CBRE Group Inc COM 12504L109 4,300 144,602 SH   SOLE   144,602 0 0
CVS Health Corp COM 126650100 2,168 27,240 SH   SOLE   27,240 0 0
Calgon Carbon Corp. COM 129603106 5,757 297,066 SH   SOLE   109,333 0 187,733
Cambrex Corp COM 132011107 6,966 372,900 SH   SOLE   372,900 0 0
Cardtronics, Inc. COM 14161H108 4,949 140,587 SH   SOLE   140,587 0 0
CareFusion COM 14170T101 25,580 565,309 SH   SOLE   142,901 0 422,408
Catamaran Corp. COM 148887102 17,818 422,721 SH   SOLE   34,675 0 388,046
Cavium Inc. COM 14964U108 31,431 632,041 SH   SOLE   309,553 0 322,488
Celgene Corp. COM 151020104 7,320 77,228 SH   SOLE   77,228 0 0
Cerner Corp. COM 156782104 6,695 112,397 SH   SOLE   112,397 0 0
Choice Hotels International In COM 169905106 4,657 89,557 SH   SOLE   89,557 0 0
Citrix Systems COM 177376100 5,474 76,737 SH   SOLE   76,737 0 0
Cogent Communications Holdings COM 19239V302 4,167 123,974 SH   SOLE   123,974 0 0
Cognizant Tech Solutions Corp. COM 192446102 5,871 131,134 SH   SOLE   131,134 0 0
Cohen & Steers, Inc. COM 19247A100 25,789 670,896 SH   SOLE   325,544 0 345,352
Colgate-Palmolive Co. COM 194162103 4,428 67,899 SH   SOLE   67,899 0 0
Constant Contact, Inc. COM 210313102 17,207 634,016 SH   SOLE   246,958 0 387,058
Copart, Inc. COM 217204106 13,849 442,243 SH   SOLE   36,235 0 406,008
Cyberonics, Inc. COM 23251P102 2,318 45,313 SH   SOLE   45,313 0 0
DIRECTV COM 25490A101 6,443 74,465 SH   SOLE   74,465 0 0
DealerTrack Technology COM 242309102 40,885 941,837 SH   SOLE   330,963 0 610,874
Deckers Outdoor COM 243537107 5,367 55,228 SH   SOLE   55,228 0 0
Demandware Inc COM 24802Y105 19,989 392,557 SH   SOLE   165,902 0 226,655
Dicks Sporting Goods, Inc. COM 253393102 3,201 72,946 SH   SOLE   72,946 0 0
Discovery Communications COM 25470F302 6,642 178,174 SH   SOLE   178,174 0 0
Dollar Tree, Inc. COM 256746108 6,837 121,928 SH   SOLE   121,928 0 0
Eagle Bancorp, Inc. COM 268948106 8,929 280,603 SH   SOLE   280,603 0 0
Eagle Materials COM 26969P108 26,781 262,994 SH   SOLE   90,812 0 172,182
Ebay, Inc. COM 278642103 3,590 63,397 SH   SOLE   63,397 0 0
Education Realty Trust Inc. COM 28140H104 4,233 411,750 SH   SOLE   411,750 0 0
Emerson Electric Co COM 291011104 4,274 68,289 SH   SOLE   68,289 0 0
Endo Pharmaceuticals COM G30401106 4,923 72,033 SH   SOLE   72,033 0 0
Endologix, Inc. COM 29266S106 3,103 292,765 SH   SOLE   292,765 0 0
Equinix, Inc. COM 29444U502 6,544 30,797 SH   SOLE   30,797 0 0
Express Scripts Holding Co. COM 30219G108 2,378 33,666 SH   SOLE   33,666 0 0
F5 Networks, Inc. COM 315616102 5,311 44,732 SH   SOLE   44,732 0 0
FMC Technologies, Inc. COM 30249U101 4,331 79,751 SH   SOLE   79,751 0 0
FTI Consulting, Inc. COM 302941109 4,590 131,297 SH   SOLE   131,297 0 0
Fiesta Restaurant Group Inc COM 31660B101 2,489 50,098 SH   SOLE   50,098 0 0
Fleetcor Technologies COM 339041105 5,108 35,944 SH   SOLE   35,944 0 0
G&K SERVICES INC CL A COM 361268105 4,685 84,599 SH   SOLE   84,599 0 0
Generac Holdings Inc COM 368736104 22,157 546,544 SH   SOLE   193,671 0 352,873
Gentherm Inc COM 37253A103 28,384 672,133 SH   SOLE   317,974 0 354,159
Globus Medical Inc COM 379577208 10,328 525,059 SH   SOLE   181,258 0 343,801
Google, Inc. - Class A COM 38259P508 5,267 8,952 SH   SOLE   8,952 0 0
Google, Inc. - Class C COM 38259P706 5,169 8,952 SH   SOLE   8,952 0 0
Grand Canyon Education Inc. COM 38526M106 4,544 111,464 SH   SOLE   111,464 0 0
Greenbrier Companies, Inc. COM 393657101 15,369 209,440 SH   SOLE   116,616 0 92,824
Gulfport Energy Corp COM 402635304 12,563 235,271 SH   SOLE   79,103 0 156,168
Hanesbrands, Inc. COM 410345102 32,618 303,596 SH   SOLE   148,196 0 155,400
Herman Miller, Inc. COM 600544100 38,590 1,292,792 SH   SOLE   457,143 0 835,649
Home Depot, Inc. COM 437076102 3,853 41,995 SH   SOLE   41,995 0 0
Homeaway, Inc. COM 43739Q100 35,672 1,004,857 SH   SOLE   396,211 0 608,646
Horsehead Holding Corp. COM 440694305 2,178 131,781 SH   SOLE   131,781 0 0
ITT Corp COM 450911201 4,159 92,550 SH   SOLE   92,550 0 0
Icon Plc COM G4705A100 14,406 251,717 SH   SOLE   87,588 0 164,129
Integrated Device Tech Inc COM 458118106 10,009 627,540 SH   SOLE   218,126 0 409,414
J2 Global Inc. COM 48123V102 38,834 786,744 SH   SOLE   306,648 0 480,096
Jarden Corp. COM 471109108 4,789 79,664 SH   SOLE   79,664 0 0
Jazz Pharmaceuticals plc COM G50871105 10,184 63,430 SH   SOLE   19,023 0 44,407
Kansas City Southern COM 485170302 5,398 44,537 SH   SOLE   44,537 0 0
Key Energy Services Inc COM 492914106 837 172,964 SH   SOLE   64,368 0 108,596
Kforce, Inc. COM 493732101 9,586 489,839 SH   SOLE   489,839 0 0
Lands' End Inc COM 51509F105 4,681 113,841 SH   SOLE   113,841 0 0
LyondellBasell Indu - Cl A COM N53745100 7,406 68,159 SH   SOLE   68,159 0 0
MSC Indsutrial Direct Co. - Cl COM 553530106 4,308 50,412 SH   SOLE   50,412 0 0
Marlin Business Services, Inc. COM 571157106 6,484 353,956 SH   SOLE   353,956 0 0
Marriott International COM 571903202 7,301 104,455 SH   SOLE   104,455 0 0
Maximus, Inc. COM 577933104 4,512 112,429 SH   SOLE   112,429 0 0
Medidata Solutions Inc COM 58471A105 10,697 241,527 SH   SOLE   135,699 0 105,828
Mellanox Technologies COM M51363113 38,338 854,419 SH   SOLE   376,392 0 478,027
Microsoft Corp. COM 594918104 5,746 123,947 SH   SOLE   123,947 0 0
Monolithic Power Systems, Inc. COM 609839105 25,209 572,287 SH   SOLE   215,897 0 356,390
Monsanto Company COM 61166W101 3,253 28,910 SH   SOLE   28,910 0 0
Movado Group, Inc. COM 624580106 20,596 622,999 SH   SOLE   224,489 0 398,510
NCI Building Systems Inc COM 628852204 18,388 947,833 SH   SOLE   295,441 0 652,392
NPS Pharmaceuticals, Inc. COM 62936P103 3,491 134,260 SH   SOLE   134,260 0 0
NXP Semiconductors COM N6596X109 4,597 67,181 SH   SOLE   67,181 0 0
Nordson Corp. COM 655663102 19,906 261,674 SH   SOLE   121,797 0 139,877
Och-Ziff Capital Management Gr COM 67551U105 21,770 2,032,661 SH   SOLE   164,246 0 1,868,415
Palo Alto Networks COM 697435105 33,469 341,171 SH   SOLE   141,546 0 199,625
Papa John's International Inc COM 698813102 13,346 333,729 SH   SOLE   116,650 0 217,079
Parexel International Corp COM 699462107 5,135 81,391 SH   SOLE   81,391 0 0
Penn Virginia Corp. COM 707882106 15,461 1,216,467 SH   SOLE   581,398 0 635,069
PepsiCo, Inc. COM 713448108 7,580 81,428 SH   SOLE   81,428 0 0
Perkin Elmer Inc COM 714046109 16,098 369,224 SH   SOLE   30,279 0 338,945
Pharmerica Corp COM 71714F104 14,464 592,060 SH   SOLE   185,475 0 406,585
PrivateBancorp, Inc. COM 742962103 4,960 165,839 SH   SOLE   165,839 0 0
Proofpoint Inc COM 743424103 30,853 830,712 SH   SOLE   354,565 0 476,147
Robert Half International, Inc COM 770323103 23,614 481,912 SH   SOLE   39,485 0 442,427
Ruth's Hospitality Group COM 783332109 3,669 332,298 SH   SOLE   332,298 0 0
Ryland Group, Inc. COM 783764103 20,130 605,605 SH   SOLE   229,028 0 376,577
SAIA Inc COM 78709Y105 26,293 530,523 SH   SOLE   215,011 0 315,512
Salix Pharmaceuticals Ltd. COM 795435106 19,079 122,112 SH   SOLE   10,039 0 112,073
ServiceMaster Global Holding COM 81761R109 4,735 195,669 SH   SOLE   195,669 0 0
Signature Bank COM 82669G104 17,117 152,752 SH   SOLE   12,515 0 140,237
Snap-On Inc COM 833034101 4,747 39,209 SH   SOLE   39,209 0 0
Sonus Networks COM 835916107 12,768 3,733,421 SH   SOLE   1,292,835 0 2,440,586
Sotheby's COM 835898107 15,301 428,346 SH   SOLE   153,006 0 275,340
Spirit Airlines Inc COM 848577102 5,039 72,882 SH   SOLE   72,882 0 0
Starbucks Corp. COM 855244109 3,327 44,087 SH   SOLE   44,087 0 0
Superior Energy Services, Inc. COM 868157108 16,979 516,554 SH   SOLE   42,367 0 474,187
The Cooper Cos, Inc. COM 216648402 20,785 133,448 SH   SOLE   37,377 0 96,071
Tyler Technologies COM 902252105 12,937 146,348 SH   SOLE   45,872 0 100,476
US Ecology Inc COM 91732J102 1,676 35,839 SH   SOLE   35,839 0 0
US Silica Holdings Inc COM 90346E103 30,434 486,871 SH   SOLE   179,330 0 307,541
Ubiquiti Networks Inc COM 90347A100 17,788 473,963 SH   SOLE   206,841 0 267,122
Union Pacific Corp COM 907818108 6,443 59,425 SH   SOLE   59,425 0 0
United Parcel Service - CL B COM 911312106 3,276 33,335 SH   SOLE   33,335 0 0
United Rentals Inc COM 911363109 4,788 43,096 SH   SOLE   43,096 0 0
Universal Electronics, Inc. COM 913483103 5,374 108,856 SH   SOLE   38,082 0 70,774
Universal Forest Products COM 913543104 5,084 119,039 SH   SOLE   41,912 0 77,127
Universal Health Services COM 913903100 4,611 44,124 SH   SOLE   44,124 0 0
Urban Outfitters, Inc. COM 917047102 3,193 87,005 SH   SOLE   87,005 0 0
VCA Antech, Inc. COM 918194101 4,660 118,474 SH   SOLE   118,474 0 0
Vasco Data Security COM 92230Y104 11,943 635,935 SH   SOLE   331,103 0 304,832
Verifone Holdings, Inc. COM 92342Y109 4,522 131,538 SH   SOLE   131,538 0 0
Verisk Analytics, Inc. - Class COM 92345Y106 6,575 107,988 SH   SOLE   107,988 0 0
Virtusa Corp COM 92827P102 2,526 71,034 SH   SOLE   50,232 0 20,802
Visa, Inc. COM 92826C839 5,412 25,363 SH   SOLE   25,363 0 0
WNS Holdings LTD - ADR COM 92932M101 7,297 324,155 SH   SOLE   112,839 0 211,316
Web.com Group COM 94733A104 7,191 360,284 SH   SOLE   161,492 0 198,792
Western Union COM 959802109 7,918 493,649 SH   SOLE   493,649 0 0
Whitewave Goods COM 966244105 4,701 129,402 SH   SOLE   129,402 0 0
Wuxi Pharmatech, Inc. - ADR COM 929352102 12,905 368,508 SH   SOLE   152,578 0 215,930
Zebra Technologies COM 989207105 2,952 41,599 SH   SOLE   41,599 0 0
comScore, Inc. COM 20564W105 21,223 582,892 SH   SOLE   207,455 0 375,437
priceline.com, Inc. COM 741503403 4,163 3,593 SH   SOLE   3,593 0 0