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
Estimated average burden
hours per response: 23.8
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
Albany Molecular Research Conv CONV 012423AA7 7,060 6,400,000 PRN   SOLE   0 0 6,400,000
Envestnet Conv Sr Unsecd Note CONV 29404KAA4 3,458 4,000,000 PRN   SOLE   0 0 4,000,000
NuVasive Conv Sr Notes CONV 670704AC9 20,981 16,635,000 PRN   SOLE   0 0 16,635,000
WebMD Health Conv Sr Notes CONV 94770VAF9 4,062 3,555,000 PRN   SOLE   0 0 3,555,000
ACI Worldwide COM 4498101 8,274 398,000 SH   SOLE   0 0 398,000
ANSYS COM 03662Q105 18,085 202,162 SH   SOLE   0 0 202,162
AT & T COM 00206R102 228 5,809 SH   SOLE   0 0 5,809
Abaxis COM 2567105 3,631 80,000 SH   SOLE   0 0 80,000
Actuant COM 00508X203 869 35,184 SH   SOLE   0 0 35,184
Acxiom COM 5125109 7,579 353,500 SH   SOLE   0 0 353,500
Advisory Board COM 00762W107 23,145 717,680 SH   SOLE   0 0 717,680
AeroVironment COM 8073108 20,887 737,550 SH   SOLE   0 0 737,550
Albany Molecular Research COM 12423109 19,931 1,303,500 SH   SOLE   0 0 1,303,500
Alphabet COM 02079K107 4,322 5,802 SH   SOLE   0 0 5,802
Alphabet (googl) COM 02079K305 4,766 6,247 SH   SOLE   0 0 6,247
Amgen COM 31162100 8,351 55,700 SH   SOLE   0 0 55,700
AngioDynamics COM 03475V101 1,032 84,000 SH   SOLE   0 0 84,000
Apple COM 37833100 375 3,438 SH   SOLE   0 0 3,438
Aspen Technology COM 45327103 889 24,610 SH   SOLE   0 0 24,610
Autozone COM 53332102 8,978 11,269 SH   SOLE   0 0 11,269
Bed Bath & Beyond COM 75896100 4,123 83,060 SH   SOLE   0 0 83,060
Berkshire Hathaway New Cl B COM 84670702 259 1,829 SH   SOLE   0 0 1,829
Bio Techne COM 09073M104 714 7,555 SH   SOLE   0 0 7,555
Blackbaud COM 09227Q100 10,478 166,605 SH   SOLE   0 0 166,605
Bristol Myers COM 110122108 450 7,050 SH   SOLE   0 0 7,050
CEB COM 125134106 5,071 78,341 SH   SOLE   0 0 78,341
Cambrex COM 132011107 8,923 202,802 SH   SOLE   0 0 202,802
Capella Education COM 139594105 1,710 32,485 SH   SOLE   0 0 32,485
Celgene COM 151020104 5,768 57,629 SH   SOLE   0 0 57,629
Cepheid COM 15670R107 18,269 547,640 SH   SOLE   0 0 547,640
Cerner COM 156782104 1,570 29,650 SH   SOLE   0 0 29,650
Charles River Labs COM 159864107 11,395 150,050 SH   SOLE   0 0 150,050
Cognex COM 192422103 41,016 1,053,040 SH   SOLE   0 0 1,053,040
ComScore COM 20564W105 3,227 107,435 SH   SOLE   0 0 107,435
CommVault Systems COM 204166102 3,022 70,000 SH   SOLE   0 0 70,000
Computer Programs & Systems COM 205306103 2,098 40,250 SH   SOLE   0 0 40,250
Costar Group COM 22160N109 8,886 47,223 SH   SOLE   0 0 47,223
Dorman Products COM 258278100 14,276 262,325 SH   SOLE   0 0 262,325
EQT COM 294549100 538 7,998 SH   SOLE   0 0 7,998
Ecolab COM 278865100 8,510 76,308 SH   SOLE   0 0 76,308
Expeditors Int'l Washington COM 302130109 5,127 105,050 SH   SOLE   0 0 105,050
Exxon Mobil COM 30231G102 363 4,345 SH   SOLE   0 0 4,345
F5 Networks COM 315616102 2,652 25,055 SH   SOLE   0 0 25,055
FactSet Research System COM 303075105 35,860 236,655 SH   SOLE   0 0 236,655
Far East Horizon Ltd COM HK0000077 8 11,000 SH   SOLE   0 0 11,000
Fastenal COM 311900104 9,269 189,162 SH   SOLE   0 0 189,162
Federal Realty Invt Tr COM 313747206 2,247 14,398 SH   SOLE   0 0 14,398
Fleetmatics Group PLC COM G35569105 5,533 135,904 SH   SOLE   0 0 135,904
Forrester Research COM 346563109 14,581 433,822 SH   SOLE   0 0 433,822
Fortinet COM 34959E109 15,700 512,564 SH   SOLE   0 0 512,564
Forward Air COM 349853101 3,902 86,095 SH   SOLE   0 0 86,095
Franklin Electric COM 353514102 13,786 428,550 SH   SOLE   0 0 428,550
General Electric COM 369604103 314 9,877 SH   SOLE   0 0 9,877
Genesee & Wyoming Class A COM 371559105 677 10,800 SH   SOLE   0 0 10,800
Gentex COM 371901109 32,713 2,084,931 SH   SOLE   0 0 2,084,931
Gilead Sciences COM 375558103 4,864 52,952 SH   SOLE   0 0 52,952
HMS Holdings COM 40425J101 26,696 1,860,358 SH   SOLE   0 0 1,860,358
Haemonetics COM 405024100 24,462 699,316 SH   SOLE   0 0 699,316
Hanhua Finl Hldg COM CNE100001 3 22,000 SH   SOLE   0 0 22,000
Healthcare Services Grp COM 421906108 7,816 212,345 SH   SOLE   0 0 212,345
Healthways COM 422245100 9,098 901,660 SH   SOLE   0 0 901,660
Hologic COM 436440101 35,596 1,031,755 SH   SOLE   0 0 1,031,755
Home Depot COM 437076102 5,258 39,404 SH   SOLE   0 0 39,404
Huron Consulting Grp COM 447462102 9,158 157,381 SH   SOLE   0 0 157,381
ICF International COM 44925C103 2,750 80,000 SH   SOLE   0 0 80,000
ICON PLC COM G4705A100 62,347 830,180 SH   SOLE   0 0 830,180
ID Systems COM 449489103 294 67,700 SH   SOLE   0 0 67,700
IDEXX Laboratories COM 45168D104 51,093 652,366 SH   SOLE   0 0 652,366
IPG Photonic COM 44980X109 13,961 145,305 SH   SOLE   0 0 145,305
IShares Global Tech COM 464287291 6,726 67,360 SH   SOLE   0 0 67,360
IShares MSCI Emerging Markets COM 464287234 3,993 116,582 SH   SOLE   0 0 116,582
Illumina COM 452327109 35,022 216,040 SH   SOLE   0 0 216,040
Ishares China Large Cap ETF COM 464287184 5,715 169,255 SH   SOLE   0 0 169,255
Jack Henry & Associates COM 426281101 32,152 380,182 SH   SOLE   0 0 380,182
LKQ COM 501889208 26,791 839,043 SH   SOLE   0 0 839,043
Liberty Global Plc Cl A UK COM G5480u104 2,172 56,415 SH   SOLE   0 0 56,415
Liberty Global Plc Ser C UK COM G5480u120 4,546 121,041 SH   SOLE   0 0 121,041
Lindsay Manufacturing COM 535555106 2,155 30,090 SH   SOLE   0 0 30,090
Linear Tech COM 535678106 1,876 42,100 SH   SOLE   0 0 42,100
Manhattan Associates COM 562750109 75,932 1,335,177 SH   SOLE   0 0 1,335,177
Medidata Solutions COM 58471A105 4,030 104,097 SH   SOLE   0 0 104,097
Mednax COM 58502b106 19,513 301,965 SH   SOLE   0 0 301,965
Meridian Bioscience COM 589584101 999 48,450 SH   SOLE   0 0 48,450
Merit Medical Systems COM 589889104 5,532 299,200 SH   SOLE   0 0 299,200
Morningstar COM 617700109 17,547 198,786 SH   SOLE   0 0 198,786
National Instruments COM 636518102 2,301 76,430 SH   SOLE   0 0 76,430
Nice Systems COM 653656108 32,642 503,815 SH   SOLE   0 0 503,815
NuVasive COM 670704105 338 6,950 SH   SOLE   0 0 6,950
Paychex COM 704326107 4,737 87,702 SH   SOLE   0 0 87,702
Pfizer COM 717081103 202 6,811 SH   SOLE   0 0 6,811
Proto Labs COM 743713109 6,452 83,693 SH   SOLE   0 0 83,693
Quaker Chemical COM 747316107 4,090 48,200 SH   SOLE   0 0 48,200
ResMed COM 761152107 40,123 693,930 SH   SOLE   0 0 693,930
Ritchie Bros. Auctioneers COM 767744105 5,623 207,655 SH   SOLE   0 0 207,655
SEI Investments COM 784117103 29,299 680,580 SH   SOLE   0 0 680,580
SITC International Holdings Co COM KYG8187G1 9 19,000 SH   SOLE   0 0 19,000
Schlumberger COM 806857108 210 2,853 SH   SOLE   0 0 2,853
Trimble Navigation COM 896239100 14,548 586,610 SH   SOLE   0 0 586,610
VCA Antech COM 918194101 1,200 20,800 SH   SOLE   0 0 20,800
Verint Systems COM 92343x100 22,619 677,630 SH   SOLE   0 0 677,630
Verizon COM 92343V104 357 6,597 SH   SOLE   0 0 6,597
WP Glimcher COM 939647103 342 36,000 SH   SOLE   0 0 36,000
Wright Medical Group N.V. COM N96617118 920 55,408 SH   SOLE   0 0 55,408
Zebra Technologies COM 989207105 21,090 305,650 SH   SOLE   0 0 305,650