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 8,148 6,400,000 PRN   SOLE   0 0 6,400,000
Integra Life Sciences Conv Sr CONV 457985AK5 3,130 2,710,000 PRN   SOLE   0 0 2,710,000
NuVasive Conv Sr Notes CONV 670704AC9 20,544 16,452,000 PRN   SOLE   0 0 16,452,000
WebMD Health Conv Sr Notes CONV 94770VAF9 3,714 3,655,000 PRN   SOLE   0 0 3,655,000
ACI Worldwide COM 004498101 8,621 398,000 SH   SOLE   0 0 398,000
Abaxis COM 002567105 5,193 81,000 SH   SOLE   0 0 81,000
Acxiom COM 005125109 6,536 353,500 SH   SOLE   0 0 353,500
Advisory Board COM 00762W107 6,130 115,045 SH   SOLE   0 0 115,045
AeroVironment COM 008073108 13,470 508,100 SH   SOLE   0 0 508,100
Albany Molecular Research COM 012423109 17,552 997,290 SH   SOLE   0 0 997,290
Allscripts COM 01988P108 3,466 289,800 SH   SOLE   0 0 289,800
AngioDynamics COM 03475V101 1,494 84,000 SH   SOLE   0 0 84,000
Ansys COM 03662Q105 10,359 117,462 SH   SOLE   0 0 117,462
Aspen Technology COM 045327103 796 20,675 SH   SOLE   0 0 20,675
Berkshire Hathaway New Cl B COM 084670702 216 1,500 SH   SOLE   0 0 1,500
Bio Reference Labs COM 09057G602 13,281 376,860 SH   SOLE   0 0 376,860
Bio Techne COM 09073M104 354 3,525 SH   SOLE   0 0 3,525
Blackbaud COM 09227Q100 6,406 135,200 SH   SOLE   0 0 135,200
Capella Education COM 139594105 461 7,100 SH   SOLE   0 0 7,100
Cepheid COM 15670R107 19,616 344,740 SH   SOLE   0 0 344,740
Cerner COM 156782104 2,220 30,300 SH   SOLE   0 0 30,300
Charles River Labs COM 159864107 11,897 150,050 SH   SOLE   0 0 150,050
Cognex COM 192422103 43,357 874,310 SH   SOLE   0 0 874,310
CommVault Systems COM 204166102 1,529 35,000 SH   SOLE   0 0 35,000
Computer Programs & Systems COM 205306103 4,340 79,990 SH   SOLE   0 0 79,990
Costar Group COM 22160N109 663 3,350 SH   SOLE   0 0 3,350
Dorman Products COM 258278100 3,381 67,950 SH   SOLE   0 0 67,950
F5 Networks COM 315616102 2,197 19,115 SH   SOLE   0 0 19,115
FactSet Research System COM 303075105 36,170 227,200 SH   SOLE   0 0 227,200
Forrester Research COM 346563109 15,804 429,690 SH   SOLE   0 0 429,690
Fortinet COM 34959E109 11,656 333,510 SH   SOLE   0 0 333,510
Forward Air COM 349853101 3,772 69,475 SH   SOLE   0 0 69,475
Franklin Electric COM 353514102 15,211 398,810 SH   SOLE   0 0 398,810
Genesee & Wyoming Class A COM 371559105 890 9,225 SH   SOLE   0 0 9,225
Gentex COM 371901109 33,019 1,804,330 SH   SOLE   0 0 1,804,330
HMS Holdings COM 40425J101 18,376 1,189,410 SH   SOLE   0 0 1,189,410
Haemonetics COM 405024100 30,555 680,210 SH   SOLE   0 0 680,210
Healthcare Services Grp COM 421906108 6,677 207,805 SH   SOLE   0 0 207,805
Healthways COM 422245100 10,781 547,250 SH   SOLE   0 0 547,250
Hologic COM 436440101 33,515 1,014,825 SH   SOLE   0 0 1,014,825
Huron Consulting Grp COM 447462102 10,462 158,156 SH   SOLE   0 0 158,156
ICON PLC COM G4705A100 54,371 770,885 SH   SOLE   0 0 770,885
IDEXX Laboratories COM 45168D104 39,710 257,058 SH   SOLE   0 0 257,058
IPC Healthcare COM 44984A105 14,095 302,215 SH   SOLE   0 0 302,215
IPG Photonic COM 44980X109 4,635 50,000 SH   SOLE   0 0 50,000
Illumina COM 452327109 34,803 187,475 SH   SOLE   0 0 187,475
Integra Lifesciences COM 457985208 432 7,000 SH   SOLE   0 0 7,000
Jack Henry & Associates COM 426281101 26,445 378,385 SH   SOLE   0 0 378,385
LKQ COM 501889208 27,487 1,075,400 SH   SOLE   0 0 1,075,400
Lindsay COM 535555106 2,287 30,000 SH   SOLE   0 0 30,000
Linear Tech COM 535678106 2,115 45,200 SH   SOLE   0 0 45,200
Manhattan Associates COM 562750109 72,057 1,423,762 SH   SOLE   0 0 1,423,762
Mednax COM 58502b106 18,804 259,330 SH   SOLE   0 0 259,330
Meridian Bioscience COM 589584101 1,125 58,950 SH   SOLE   0 0 58,950
Merit Medical Systems COM 589889104 5,912 307,125 SH   SOLE   0 0 307,125
Morningstar COM 617700109 14,394 192,150 SH   SOLE   0 0 192,150
National Instruments COM 636518102 2,203 68,750 SH   SOLE   0 0 68,750
Nice Systems COM 653656108 22,602 370,945 SH   SOLE   0 0 370,945
NuVasive COM 670704105 320 6,950 SH   SOLE   0 0 6,950
Quaker Chemical COM 747316107 5,434 63,450 SH   SOLE   0 0 63,450
ResMed COM 761152107 40,852 569,130 SH   SOLE   0 0 569,130
SEI Investments COM 784117103 29,478 668,590 SH   SOLE   0 0 668,590
SM Energy COM 78454L100 295 5,700 SH   SOLE   0 0 5,700
Thoratec COM 885175307 1,579 37,700 SH   SOLE   0 0 37,700
Trimble Navigation COM 896239100 11,915 472,810 SH   SOLE   0 0 472,810
VCA Antech COM 918194101 1,233 22,500 SH   SOLE   0 0 22,500
Valeant Pharmaceuticals Int'l COM 91911k102 80,859 407,103 SH   SOLE   0 0 407,103
Verint Systems COM 92343x100 27,759 448,235 SH   SOLE   0 0 448,235
Wright Medical COM 98235T107 1,190 46,125 SH   SOLE   0 0 46,125
Zebra Technologies COM 989207105 25,922 285,750 SH   SOLE   0 0 285,750
El Paso Conv Pfd PFD 283678209 183 3,050 SH   SOLE   0 0 3,050