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
3M CO. COM 88579Y101 1,530 10,800 SH   SOLE   10,800 0 0
AFFILIATED MANAGERS GROUP INC. COM 008252108 24,494 122,250 SH   SOLE   122,250 0 0
AIR PRODUCTS & CHEMICALS INC. COM 009158106 260 2,000 SH   SOLE   2,000 0 0
ALLIANCE DATA SYSTEMS CORP COM 018581108 18,285 73,650 SH   SOLE   73,650 0 0
AMERICAN AIRLINES GROUP INC. COM 02376R102 27,791 783,300 SH   SOLE   783,300 0 0
AMERICAN EXPRESS CO. COM 025816109 2,958 33,790 SH   SOLE   33,790 0 0
AMERIPRISE FINANCIAL, INC. COM 03076C106 3,655 29,620 SH   SOLE   29,620 0 0
APTARGROUP, INC. COM 038336103 639 10,520 SH   SOLE   10,520 0 0
BERKSHIRE HATHAWAY INC. CL. B COM 084670702 366 2,650 SH   SOLE   2,650 0 0
BOEING CO. COM 097023105 28,098 220,584 SH   SOLE   220,584 0 0
BORG WARNER INC. COM 099724106 36,145 687,044 SH   SOLE   687,044 0 0
BOSTON PROPERTIES, INC. COM 101121101 660 5,700 SH   SOLE   5,700 0 0
BROWNSTONE ENERGY INC. COM 116141102 1 23,000 SH   SOLE   23,000 0 0
BUCKEYE PARTNERS LP COM 118230101 988 12,400 SH   SOLE   12,400 0 0
CALAMP CORP. COM 128126109 1,286 73,000 SH   SOLE   73,000 0 0
CHEVRON CORPORATION COM 166764100 453 3,800 SH   SOLE   3,800 0 0
CHICAGO BRIDGE & IRON CO. COM 167250109 20,735 358,427 SH   SOLE   358,427 0 0
CITIGROUP INC. NEW COM 172967424 230 4,430 SH   SOLE   4,430 0 0
CORNERSTONE ONDEMAND COM 21925y103 6,128 178,100 SH   SOLE   178,100 0 0
COSTCO WHOLESALE CORP. COM 22160K105 600 4,788 SH   SOLE   4,788 0 0
CVS HEALTH CORPORATION COM 126650100 589 7,400 SH   SOLE   7,400 0 0
DELTA AIR LINES INC. COM 247361702 253 7,000 SH   SOLE   7,000 0 0
DU PONT E I DE NEMOURS COM 263534109 258 3,598 SH   SOLE   3,598 0 0
ENTERPRISE PRODUCTS PARTNERS COM 293792107 337 8,360 SH   SOLE   8,360 0 0
ENVESTNET, INC. COM 29404K106 1,642 36,500 SH   SOLE   36,500 0 0
EOG RESOURCES INC. COM 26875P101 5,961 60,200 SH   SOLE   60,200 0 0
EXXON MOBIL CORPORATION COM 30231G102 1,212 12,892 SH   SOLE   12,892 0 0
FACEBOOK INC. CL A COM 30303M102 34,390 435,100 SH   SOLE   435,100 0 0
FEDEX CORPORATION COM 31428X106 20,714 128,298 SH   SOLE   128,298 0 0
FISERV INC. COM 337738108 9,840 152,240 SH   SOLE   152,240 0 0
FMC TECHNOLOGIES COM 30249U101 1,434 26,400 SH   SOLE   26,400 0 0
GENERAL ELECTRIC CO. COM 369604103 269 10,500 SH   SOLE   10,500 0 0
GENTHERM COM 37253A103 389 9,200 SH   SOLE   9,200 0 0
GILEAD SCIENCES COM 375558103 35,140 330,110 SH   SOLE   330,110 0 0
GOLDMAN SACHS GROUP INC. COM 38141G104 6,856 37,350 SH   SOLE   37,350 0 0
GOOGLE, INC. CL A COM 38259P508 17,113 29,083 SH   SOLE   29,083 0 0
GOOGLE, INC. CL C COM 38259P706 16,791 29,083 SH   SOLE   29,083 0 0
HALLIBURTON COMPANY COM 406216101 387 6,000 SH   SOLE   6,000 0 0
HARMAN INTL. INDUSTRIES INC. COM 413086109 5,275 53,800 SH   SOLE   53,800 0 0
HCA HOLDINGS INC. COM 40412C101 21,096 299,150 SH   SOLE   299,150 0 0
HOME DEPOT INC. COM 437076102 651 7,100 SH   SOLE   7,100 0 0
JOHNSON & JOHNSON INC. COM 478160104 575 5,395 SH   SOLE   5,395 0 0
JPMORGAN CHASE & COMPANY COM 46625H100 329 5,460 SH   SOLE   5,460 0 0
LOWES COMPANIES INC. COM 548661107 496 9,370 SH   SOLE   9,370 0 0
MACQUARIE INFRASTRUCTURE COM 55608B105 814 12,200 SH   SOLE   12,200 0 0
MACY'S COM 55616P104 5,655 97,200 SH   SOLE   97,200 0 0
MAGNA INTERNATIONAL INC. CL. A COM 559222401 5,998 63,200 SH   SOLE   63,200 0 0
MARKWEST ENERGY PARTNERS LP COM 570759100 302 3,925 SH   SOLE   3,925 0 0
MASTERCARD INC. COM 57636Q104 32,041 433,452 SH   SOLE   433,452 0 0
MB FINANCIAL INC. COM 55264U108 769 27,778 SH   SOLE   27,778 0 0
MIDDLEBY CORPORATION COM 596278101 36,510 414,280 SH   SOLE   414,280 0 0
MIMEDX GROUP INC COM 602496101 963 135,000 SH   SOLE   135,000 0 0
NESTLE S A ADR COM 641069406 412 5,600 SH   SOLE   5,600 0 0
NEXTERA ENERGY, INC. COM 65339F101 357 3,800 SH   SOLE   3,800 0 0
NOBLE ROMAN COM 655107100 99 60,000 SH   SOLE   60,000 0 0
NORTHERN TECHNOLOGIES INTL COR COM 665809109 745 35,000 SH   SOLE   35,000 0 0
NUMEREX CORP COM 67053A102 2,232 213,000 SH   SOLE   213,000 0 0
PACCAR, INC. COM 693718108 313 5,500 SH   SOLE   5,500 0 0
PARKER HANNIFIN CORP. COM 701094104 482 4,225 SH   SOLE   4,225 0 0
PLAINS ALL AMERICAN PIPELINE L COM 726503105 254 4,310 SH   SOLE   4,310 0 0
PPG INDUSTRIES COM 693506107 3,177 16,150 SH   SOLE   16,150 0 0
PRAXAIR, INC. COM 74005P104 10,899 84,485 SH   SOLE   84,485 0 0
PROSPECT CAPITAL CORPORATION COM 74348T102 198 20,000 SH   SOLE   20,000 0 0
SBA COMMUNICATIONS CORP. COM 78388j106 11,523 103,900 SH   SOLE   103,900 0 0
SCHLUMBERGER, LTD. COM 806857108 309 3,040 SH   SOLE   3,040 0 0
SIRIUS XM HLDGS. INC. COM 82968B103 284 81,400 SH   SOLE   81,400 0 0
STARBUCKS CORPORATION COM 855244109 272 3,600 SH   SOLE   3,600 0 0
STARWOOD HOTELS & RESORTS COM 85590A401 4,693 56,400 SH   SOLE   56,400 0 0
STRATASYS LTD COM M85548101 38,831 321,500 SH   SOLE   321,500 0 0
TENNANT COMPANY COM 880345103 2,952 44,000 SH   SOLE   44,000 0 0
THERMO FISHER SCIENTIFIC INC. COM 883556102 21,998 180,760 SH   SOLE   180,760 0 0
UNION PACIFIC CORP. COM 907818108 10,915 100,670 SH   SOLE   100,670 0 0
UNITED TECHNOLOGIES CORP. COM 913017109 356 3,370 SH   SOLE   3,370 0 0
V F CORPORATION COM 918204108 5,967 90,363 SH   SOLE   90,363 0 0
VISA COM 92826c839 320 1,500 SH   SOLE   1,500 0 0
WABTEC COM 929740108 3,242 40,000 SH   SOLE   40,000 0 0
WALGREEN CO. COM 931422109 948 16,000 SH   SOLE   16,000 0 0
WALT DISNEY CO. (HOLDING CO.) COM 254687106 472 5,300 SH   SOLE   5,300 0 0
WATERS CORP. COM 941848103 287 2,900 SH   SOLE   2,900 0 0