Disciplined Growth Investors 13F-HR Quarterly holdings report by institutional manager

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

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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
AKAMAI TECHNOLOGIES COM	COM	00971T101	116,643	1,689,008	SH		SOLE		1,269,675	0	419,333
ALIGN TECHNOLOGY INC COM	COM	016255101	67,305	1,185,785	SH		SOLE		949,773	0	236,012
APPLE INC COM	COM	037833100	1,000	9,065	SH		SOLE		9,065	0	0
ARM HLDGS PLC SPONSORED ADR	COM	042068106	39,442	911,962	SH		SOLE		673,308	0	238,654
AUTODESK INC COM	COM	052769106	86,717	1,964,585	SH		SOLE		1,457,009	0	507,576
BLACK DIAMOND INC COM	COM	09202G101	5,007	797,225	SH		SOLE		768,825	0	28,400
BOTTOMLINE TECHNOLOGIES DELINC	COM	101388106	5,952	237,995	SH		SOLE		229,820	0	8,175
CABELAS INC COM	COM	126804301	88,659	1,944,282	SH		SOLE		1,532,543	0	411,739
CAPELLA EDUCATION COMPANY	COM	139594105	6,971	140,775	SH		SOLE		136,025	0	4,750
CARBO CERAMICS INC COM	COM	140781105	3,565	187,725	SH		SOLE		180,925	0	6,800
CEB INC COM	COM	125134106	59,319	868,001	SH		SOLE		654,596	0	213,405
CEVA INC COM	COM	157210105	11,489	618,696	SH		SOLE		593,596	0	25,100
CHEESECAKE FACTORY INC COM	COM	163072101	56,877	1,054,050	SH		SOLE		858,010	0	196,040
CHEVRON CORP NEW COM	COM	166764100	256	3,250	SH		SOLE		3,250	0	0
COMSCORE INC COM	COM	20564W105	8,915	193,175	SH		SOLE		186,775	0	6,400
CONSTANT CONTACT INC COM	COM	210313102	5,692	234,825	SH		SOLE		227,625	0	7,200
CORE LABORATORIES N V COM	COM	N22717107	35,105	351,750	SH		SOLE		260,225	0	91,525
COSTAR GROUP INC COM	COM	22160N109	7,058	40,784	SH		SOLE		39,509	0	1,275
CYNOSURE INC CL A	COM	232577205	9,361	311,618	SH		SOLE		301,693	0	9,925
DESTINATION MATERNITY CORP	COM	25065D100	1,999	216,800	SH		SOLE		209,400	0	7,400
DOLBY LABORATORIES INC COM	COM	25659T107	25,153	771,570	SH		SOLE		576,611	0	194,959
DTS INC COM	COM	23335C101	7,495	280,709	SH		SOLE		271,009	0	9,700
E TRADE FINANCIAL CORP	COM	269246401	44,489	1,689,667	SH		SOLE		1,238,938	0	450,729
EDWARDS LIFESCIENCES CORP COM	COM	28176E108	175,757	1,236,247	SH		SOLE		934,893	0	301,354
EMERSON ELEC CO COM	COM	291011104	457	10,350	SH		SOLE		10,350	0	0
ETHAN ALLEN INTERIORS INC COM	COM	297602104	62,337	2,360,338	SH		SOLE		1,812,765	0	547,573
FACTSET RESH SYS INC COM	COM	303075105	105,973	663,118	SH		SOLE		488,541	0	174,577
GARMIN LTD SHS	COM	H2906T109	60,646	1,690,234	SH		SOLE		1,294,000	0	396,234
GENTEX CORP COM	COM	371901109	70,839	4,570,278	SH		SOLE		3,417,426	0	1,152,852
GENTHERM INC COM	COM	37253A103	34,918	777,332	SH		SOLE		752,932	0	24,400
GEOSPACE TECHNOLOGIES CORP COM	COM	37364X109	3,359	243,200	SH		SOLE		233,800	0	9,400
GRACO INC COM	COM	384109104	33,244	495,964	SH		SOLE		366,101	0	129,863
IHS INC CL A	COM	451734107	28,812	248,377	SH		SOLE		184,533	0	63,844
INTUIT COM	COM	461202103	153,234	1,726,584	SH		SOLE		1,314,811	0	411,773
INTUITIVE SURGICAL INC COM NEW	COM	46120E602	76,707	166,906	SH		SOLE		125,002	0	41,904
IROBOT CORP COM	COM	462726100	10,763	369,350	SH		SOLE		359,650	0	9,700
ISHARES TR RUS MD CP GR ETF	COM	464287481	717	8,095	SH		SOLE		8,095	0	0
JETBLUE AIRWAYS CORP COM	COM	477143101	111,534	4,328,041	SH		SOLE		3,030,420	0	1,297,621
KEY TECHNOLOGY INC COM	COM	493143101	2,745	233,452	SH		SOLE		224,877	0	8,575
L BRANDS INC COM	COM	501797104	140,017	1,553,503	SH		SOLE		1,149,194	0	404,309
LANDSTAR SYS INC COM	COM	515098101	63,735	1,004,174	SH		SOLE		741,196	0	262,978
LUMBER LIQUIDATORS HLDGS INC C	COM	55003T107	3,323	252,886	SH		SOLE		242,386	0	10,500
MATERIALISE NV SPONSORED ADS	COM	57667T100	5,575	725,025	SH		SOLE		702,613	0	22,412
MEDIDATA SOLUTIONS INC	COM	58471A105	12,079	286,845	SH		SOLE		277,645	0	9,200
MERCURY SYS INC COM	COM	589378108	3,633	228,325	SH		SOLE		220,225	0	8,100
MICROCHIP TECHNOLOGY INC COM	COM	595017104	43,118	1,000,644	SH		SOLE		743,366	0	257,278
MIDDLEBY CORP COM	COM	596278101	185,347	1,762,023	SH		SOLE		1,345,393	0	416,630
MYRIAD GENETICS INC COM	COM	62855J104	51,682	1,378,932	SH		SOLE		1,019,212	0	359,720
NAUTILUS INC COM	COM	63910B102	14,567	971,163	SH		SOLE		932,563	0	38,600
NOBLE CORP PLC SHS USD	COM	G65431101	21,264	1,949,034	SH		SOLE		1,468,717	0	480,317
NUVASIVE INC COM	COM	670704105	3,189	66,125	SH		SOLE		62,725	0	3,400
ONCOMED PHARMACEUTICALS INC CO	COM	68234X102	5,145	310,150	SH		SOLE		300,650	0	9,500
OPEN TEXT CORP COM	COM	683715106	140,523	3,140,169	SH		SOLE		2,471,048	0	669,121
PANHANDLE OIL AND GAS INC	COM	698477106	5,461	337,937	SH		SOLE		325,287	0	12,650
PAYCHEX INC COM	COM	704326107	32,467	681,645	SH		SOLE		504,758	0	176,887
PC-TEL INC COM	COM	69325Q105	3,398	565,354	SH		SOLE		565,254	0	100
PLANTRONICS INC NEW COM	COM	727493108	88,496	1,740,344	SH		SOLE		1,385,645	0	354,699
PLEXUS CORP COM	COM	729132100	124,440	3,225,511	SH		SOLE		2,497,889	0	727,622
POWER INTEGRATIONS INC COM	COM	739276103	42,558	1,009,197	SH		SOLE		807,022	0	202,175
PROS HOLDINGS INC COM	COM	74346Y103	2,677	120,900	SH		SOLE		116,400	0	4,500
QLIK TECHNOLOGIES INC COM	COM	74733T105	51,957	1,425,425	SH		SOLE		1,058,450	0	366,975
RALPH LAUREN CORP CL A	COM	751212101	50,237	425,162	SH		SOLE		318,555	0	106,607
REALPAGE INC COM	COM	75606N109	33,211	1,998,240	SH		SOLE		1,556,291	0	441,949
ROYAL CARIBBEAN CRUISES LTD CO	COM	V7780T103	100,653	1,129,790	SH		SOLE		835,556	0	294,234
SEAGATE TECHNOLOGY PLC SHS	COM	G7945M107	115,252	2,572,599	SH		SOLE		1,941,155	0	631,444
SELECT COMFORT CORP	COM	81616X103	81,003	3,702,167	SH		SOLE		3,010,907	0	691,260
SOUTHWESTERN ENERGY CO COM	COM	845467109	25,479	2,007,825	SH		SOLE		1,482,125	0	525,700
SPECTRANETICS CORP	COM	84760C107	2,875	243,886	SH		SOLE		235,225	0	8,661
STAMPS COM INC COM NEW	COM	852857200	40,332	544,959	SH		SOLE		531,359	0	13,600
STRATASYS LTD SHS	COM	M85548101	3,913	147,709	SH		SOLE		142,509	0	5,200
SUPER MICRO COMPUTER INC COM	COM	86800U104	65,010	2,384,800	SH		SOLE		1,887,400	0	497,400
SURMODICS INC COM	COM	868873100	3,969	181,727	SH		SOLE		175,127	0	6,600
SYNAPTICS INC COM	COM	87157D109	82,880	1,005,089	SH		SOLE		837,289	0	167,800
TCF FINL CORP COM	COM	872275102	28,935	1,908,615	SH		SOLE		1,415,953	0	492,662
TERADATA CORP DEL COM	COM	88076W103	20,768	717,128	SH		SOLE		535,672	0	181,456
TJX COS INC NEW COM	COM	872540109	186,673	2,613,735	SH		SOLE		1,892,150	0	721,585
TREX CO INC COM	COM	89531P105	12,711	381,367	SH		SOLE		367,667	0	13,700
TRIMBLE NAVIGATION LTD COM	COM	896239100	2,369	144,267	SH		SOLE		144,142	0	125
TRIPADVISOR INC COM	COM	896945201	30,792	488,600	SH		SOLE		361,200	0	127,400
TUMI HLDGS INC COM	COM	89969Q104	50,714	2,878,186	SH		SOLE		2,270,800	0	607,386
UBIQUITI NETWORKS INC COM	COM	90347A100	42,634	1,258,025	SH		SOLE		926,775	0	331,250
ULTIMATE SOFTWARE GROUP INC	COM	90385D107	11,380	63,574	SH		SOLE		61,674	0	1,900
ULTRA PETROLEUM CORP COM	COM	903914109	34,984	5,474,850	SH		SOLE		4,281,092	0	1,193,758
URBAN OUTFITTERS INC COM	COM	917047102	27,443	934,075	SH		SOLE		693,025	0	241,050
VARIAN MED SYS INC COM	COM	92220P105	59,178	802,086	SH		SOLE		597,680	0	204,406
VASCO DATA SEC INTL INC COM	COM	92230Y104	6,174	362,331	SH		SOLE		347,831	0	14,500
VIASAT INC COM	COM	92552V100	38,344	596,430	SH		SOLE		479,908	0	116,522
YAHOO INC COM	COM	984332106	70,852	2,450,762	SH		SOLE		1,844,725	0	606,037
ZUMIEZ INC COM	COM	989817101	3,856	246,725	SH		SOLE		239,125	0	7,600
NESTLE SA	COM	H57312649	203	2,700	SH		SOLE		2,700	0	0