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
MercadoLibre Inc COM 58733R102 1,721 4,830 SH   SOLE   4,830 0 0
Intercontinental Exchange Inc COM 45866F104 24,448 337,118 SH   SOLE   337,118 0 0
Salesforce Com COM 79466L302 22,167 190,605 SH   SOLE   190,605 0 0
Progressive Corp Ohio COM 743315103 21,227 348,390 SH   SOLE   348,390 0 0
Abiomed Inc COM 003654100 19,953 68,569 SH   SOLE   68,569 0 0
Affiliated Managers Group COM 008252108 19,410 102,382 SH   SOLE   102,382 0 0
Costar Group Inc COM 22160N109 19,162 52,835 SH   SOLE   52,835 0 0
Amazon.Com Inc COM 023135106 18,480 12,768 SH   SOLE   12,768 0 0
Schwab Charles Corp New COM 808513105 17,960 343,927 SH   SOLE   343,927 0 0
Edwards Lifesciences Corp COM 28176E108 17,770 127,367 SH   SOLE   127,367 0 0
Dynavax Technologies COM 268158201 17,322 872,658 SH   SOLE   872,658 0 0
Watsco Inc COM 942622200 17,020 94,050 SH   SOLE   94,050 0 0
Realpage Inc COM 75606N109 16,986 329,831 SH   SOLE   329,831 0 0
Ultimate Software Group Inc COM 90385D107 16,378 67,206 SH   SOLE   67,206 0 0
Zoetis Inc COM 98978V103 16,371 196,032 SH   SOLE   196,032 0 0
Alliance Data Sys Corp COM 018581108 16,106 75,666 SH   SOLE   75,666 0 0
Lululemon Athletica Inc COM 550021109 15,571 174,719 SH   SOLE   174,719 0 0
Inogen Inc COM 45780L104 15,014 122,222 SH   SOLE   122,222 0 0
Apple Inc COM 037833100 13,702 81,664 SH   SOLE   81,664 0 0
Fair Isaac Corp COM 303250104 13,566 80,094 SH   SOLE   80,094 0 0
Lowes Cos Inc COM 548661107 13,365 152,308 SH   SOLE   152,308 0 0
IDEXX Laboratories Inc COM 45168D104 12,969 67,763 SH   SOLE   67,763 0 0
Fastenal Co COM 311900104 11,916 218,289 SH   SOLE   218,289 0 0
Dexcom Inc COM 252131107 11,585 156,213 SH   SOLE   156,213 0 0
Morningstar Inc COM 617700109 10,632 111,306 SH   SOLE   111,306 0 0
Grubhub Inc COM 400110102 10,412 102,614 SH   SOLE   102,614 0 0
Blackline Inc COM 09239B109 10,125 258,236 SH   SOLE   258,236 0 0
Financial Engines Inc COM 317485100 9,485 270,994 SH   SOLE   270,994 0 0
Wageworks Inc COM 930427109 9,393 207,819 SH   SOLE   207,819 0 0
Wright Med Group N V Ord Shs 0.03 Par COM N96617118 8,671 437,067 SH   SOLE   437,067 0 0
Exelixis Inc COM 30161Q104 8,321 375,671 SH   SOLE   375,671 0 0
Costco Wholesale Corp COM 22160K105 8,255 43,808 SH   SOLE   43,808 0 0
Cotiviti Hldgs Inc COM 22164K101 7,402 214,933 SH   SOLE   214,933 0 0
Accelerate Diagnostics Inc COM 00430H102 6,593 288,536 SH   SOLE   288,536 0 0
Burlington Stores Inc COM 122017106 6,549 49,185 SH   SOLE   49,185 0 0
Johnson & Johnson COM 478160104 6,092 47,535 SH   SOLE   47,535 0 0
Microsoft Corp COM 594918104 5,845 64,043 SH   SOLE   64,043 0 0
Global Pmts Inc COM 37940X102 3,055 27,398 SH   SOLE   27,398 0 0
Albireo Pharma Inc COM 01345P106 2,958 90,831 SH   SOLE   90,831 0 0
Illinois Tool Works COM 452308109 2,629 16,780 SH   SOLE   16,780 0 0
At&t Inc Usd1 COM 00206R102 2,293 64,316 SH   SOLE   64,316 0 0
Exxon Mobil Corp COM 30231G102 2,020 27,081 SH   SOLE   27,081 0 0
Pfizer Inc COM 717081103 1,982 55,835 SH   SOLE   55,835 0 0
Abbvie Inc COM 00287Y109 1,944 20,535 SH   SOLE   20,535 0 0
Paychex Inc COM 704326107 1,864 30,263 SH   SOLE   30,263 0 0
Lilly Eli &Co COM 532457108 1,761 22,764 SH   SOLE   22,764 0 0
General Electric Co COM 369604103 1,691 125,447 SH   SOLE   125,447 0 0
United Technologies Corp COM 913017109 1,624 12,906 SH   SOLE   12,906 0 0
JPMorgan Chase & Co COM 46625H100 1,611 14,653 SH   SOLE   14,653 0 0
Bp Plc Sponsored Adr COM 055622104 1,524 37,601 SH   SOLE   37,601 0 0
Verizon Communications COM 92343V104 1,508 31,534 SH   SOLE   31,534 0 0
Northern Tr Corp COM 665859104 1,482 14,375 SH   SOLE   14,375 0 0
Amgen Inc COM 031162100 1,397 8,193 SH   SOLE   8,193 0 0
McDonalds Corp COM 580135101 1,380 8,822 SH   SOLE   8,822 0 0
Pepsico Inc COM 713448108 1,338 12,256 SH   SOLE   12,256 0 0
Bristol Myers Squibb COM 110122108 1,308 20,677 SH   SOLE   20,677 0 0
Intel Corp COM 458140100 1,260 24,197 SH   SOLE   24,197 0 0
Procter And Gamble Co COM 742718109 1,254 15,814 SH   SOLE   15,814 0 0
Paypal Hldgs Inc COM 70450Y103 1,216 16,024 SH   SOLE   16,024 0 0
Mb Financial Inc COM 55264U108 1,215 30,026 SH   SOLE   30,026 0 0
3M Co COM 88579Y101 1,091 4,971 SH   SOLE   4,971 0 0
Altria Group Inc COM 02209S103 1,091 17,500 SH   SOLE   17,500 0 0
Ecolab Inc COM 278865100 1,066 7,775 SH   SOLE   7,775 0 0
Chevron Corp COM 166764100 1,029 9,020 SH   SOLE   9,020 0 0
Home Depot Inc COM 437076102 982 5,511 SH   SOLE   5,511 0 0
Teladoc Inc COM 87918A105 971 24,100 SH   SOLE   24,100 0 0
Walgreens Boots Alliance Inc COM 931427108 957 14,615 SH   SOLE   14,615 0 0
Teleflex Inc COM 879369106 892 3,500 SH   SOLE   3,500 0 0
Abbott Laboratories COM 002824100 891 14,875 SH   SOLE   14,875 0 0
Starbucks Corp COM 855244109 873 15,080 SH   SOLE   15,080 0 0
Merck & Co Inc COM 58933Y105 831 15,264 SH   SOLE   15,264 0 0
Packaging Corp Amer COM 695156109 745 6,609 SH   SOLE   6,609 0 0
Automatic Data Processing Inc COM 053015103 694 6,117 SH   SOLE   6,117 0 0
Duke Energy Corp COM 26441C204 687 8,866 SH   SOLE   8,866 0 0
Vital Therapies Inc COM 92847R104 677 99,500 SH   SOLE   99,500 0 0
Kimberly Clark Corp COM 494368103 662 6,015 SH   SOLE   6,015 0 0
Intl Business Mach COM 459200101 654 4,263 SH   SOLE   4,263 0 0
Marsh & Mclennan Companies Inc COM 571748102 595 7,200 SH   SOLE   7,200 0 0
Honeywell International Inc COM 438516106 591 4,091 SH   SOLE   4,091 0 0
Waste Management Inc COM 94106L109 555 6,599 SH   SOLE   6,599 0 0
American Express Co COM 025816109 553 5,928 SH   SOLE   5,928 0 0
American Elec Pwr Co COM 025537101 519 7,560 SH   SOLE   7,560 0 0
Air Products & Chem COM 009158106 489 3,075 SH   SOLE   3,075 0 0
Wells Fargo Co COM 949746101 453 8,651 SH   SOLE   8,651 0 0
Coca Cola Co COM 191216100 450 10,350 SH   SOLE   10,350 0 0
Franklin Street Properties Corp COM 35471R106 447 53,193 SH   SOLE   53,193 0 0
Anthem Inc COM 036752103 439 2,000 SH   SOLE   2,000 0 0
O'Reilly Automotive Inc COM 67103H107 425 1,720 SH   SOLE   1,720 0 0
Disney Walt Co COM 254687106 414 4,119 SH   SOLE   4,119 0 0
Lockheed Martin Corp COM 539830109 412 1,220 SH   SOLE   1,220 0 0
Emerson Electric Co COM 291011104 410 6,000 SH   SOLE   6,000 0 0
Kellogg Co COM 487836108 410 6,300 SH   SOLE   6,300 0 0
Dominion Energy Inc COM 25746U109 402 5,969 SH   SOLE   5,969 0 0
Wec Energy Group Inc COM 92939U106 396 6,318 SH   SOLE   6,318 0 0
Boeing Co COM 097023105 396 1,207 SH   SOLE   1,207 0 0
Corning Inc COM 219350105 391 14,025 SH   SOLE   14,025 0 0
Union Pacific Corp COM 907818108 390 2,900 SH   SOLE   2,900 0 0
Dte Energy Holding Co COM 233331107 381 3,645 SH   SOLE   3,645 0 0
Bank Of America Corp COM 060505104 370 12,331 SH   SOLE   12,331 0 0
Aon PLC COM G0408V102 365 2,600 SH   SOLE   2,600 0 0
Halliburton Co COM 406216101 348 7,423 SH   SOLE   7,423 0 0
Baxter Intl Inc COM 071813109 344 5,295 SH   SOLE   5,295 0 0
Caterpillar Inc COM 149123101 340 2,310 SH   SOLE   2,310 0 0
Intuit Com COM 461202103 335 1,930 SH   SOLE   1,930 0 0
Cisco Sys Inc COM 17275R102 330 7,703 SH   SOLE   7,703 0 0
Netflix Com COM 64110L106 310 1,050 SH   SOLE   1,050 0 0
Deluxe Corp COM 248019101 296 4,000 SH   SOLE   4,000 0 0
Snap-on Inc COM 833034101 295 2,000 SH   SOLE   2,000 0 0
Stryker Corp COM 863667101 290 1,800 SH   SOLE   1,800 0 0
Whirlpool Corp COM 963320106 280 1,830 SH   SOLE   1,830 0 0
Pool Corp COM 73278L105 276 1,888 SH   SOLE   1,888 0 0
Time Warner Inc COM 887317303 269 2,848 SH   SOLE   2,848 0 0
Express Scripts Hldg Co COM 30219G108 262 3,786 SH   SOLE   3,786 0 0
DowDuPont Inc COM 26078J100 259 4,064 SH   SOLE   4,064 0 0
Wal-Mart Stores Inc COM 931142103 244 2,748 SH   SOLE   2,748 0 0
International Paper Co COM 460146103 235 4,400 SH   SOLE   4,400 0 0
US Bancorp COM 902973304 229 4,543 SH   SOLE   4,543 0 0
Monsanto Co New COM 61166W101 229 1,960 SH   SOLE   1,960 0 0
Oracle Corp COM 68389X105 224 4,900 SH   SOLE   4,900 0 0
Moody s Corporation COM 615369105 216 1,337 SH   SOLE   1,337 0 0
LyondellBasell Industries NV COM N53745100 211 2,000 SH   SOLE   2,000 0 0
Southern Co COM 842587107 209 4,680 SH   SOLE   4,680 0 0
Iron Mountain Inc Npv COM 46284V101 11,511 350,317 SH   SOLE   350,317 0 0
Weyerhaeuser Co Com COM 962166104 432 12,354 SH   SOLE   12,354 0 0
Visa Inc Cl A COM CL A 92826C839 25,559 213,665 SH   SOLE   213,665 0 0
Veeva Sys Inc Cl A Com COM CL A 922475108 17,732 242,839 SH   SOLE   242,839 0 0
Workday Inc COM CL A 98138H101 17,168 135,067 SH   SOLE   135,067 0 0
Facebook Inc Cl A COM CL A 30303M102 16,577 103,741 SH   SOLE   103,741 0 0
Carvana Co Cl A COM CL A 146869102 14,134 616,406 SH   SOLE   616,406 0 0
Alphabet Inc Cap Stk Cl A COM CL A 02079K305 13,819 13,324 SH   SOLE   13,324 0 0
Evolent Health Inc Cl A COM CL A 30050B101 12,254 859,914 SH   SOLE   859,914 0 0
Msc Industrial Direct Co Inc COM CL A 553530106 11,311 123,334 SH   SOLE   123,334 0 0
Mastercard Inc A COM CL A 57636Q104 5,878 33,560 SH   SOLE   33,560 0 0
Premier Inc Cl A COM CL A 74051N102 5,011 160,055 SH   SOLE   160,055 0 0
Zebra Technologies Corp Cl A COM CL A 989207105 4,026 28,925 SH   SOLE   28,925 0 0
Comcast Corp New Cl A COM CL A 20030N101 722 21,130 SH   SOLE   21,130 0 0
Marriott International Inc COM CL A 571903202 618 4,545 SH   SOLE   4,545 0 0
Alphabet Inc Cap Stk Cl C COM CL A 02079K107 536 519 SH   SOLE   519 0 0
Royal Dutch Shell ADR COM CL A 780259206 221 3,468 SH   SOLE   3,468 0 0
SPROTT PHYSICAL GOLD & SILVER TR UNIT 85208R101 330 24,930 SH   SOLE   24,930 0 0
Berkshire Hathaway Inc B COM CL B 084670702 5,386 27,001 SH   SOLE   27,001 0 0
Unilever NV N Y SHS 904784709 361 6,400 SH   SOLE   6,400 0 0
Kornit Digital Ltd SHS M6372Q113 8,758 678,912 SH   SOLE   678,912 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 270 28,828 SH   SOLE   28,828 0 0
ETFS GOLD TR SHS 26922Y105 317 2,474 SH   SOLE   2,474 0 0
ISHARES INC CORE S&P 500 ETF 464287200 2,311 8,707 SH   SOLE   8,707 0 0
ISHARES INC MSCI EMG MKT ETF 464287234 252 5,220 SH   SOLE   5,220 0 0
ISHARES INC RUS 1000 GRW ETF 464287614 363 2,664 SH   SOLE   2,664 0 0
ISHARES INC RUSSELL 2000 ETF 464287655 414 2,728 SH   SOLE   2,728 0 0
ISHARES INC RUS 2000 GRW ETF 464287648 596 3,129 SH   SOLE   3,129 0 0
ISHARES INC S&P US PFD STK 464288687 476 12,670 SH   SOLE   12,670 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 693 2,635 SH   SOLE   2,635 0 0
SPROTT PHYSICAL GOLD TRUST UNIT 85207H104 870 80,916 SH   SOLE   80,916 0 0
VANGUARD INTL EQUITY INDEX F FTSE EUROPE ETF 922042874 1,171 20,130 SH   SOLE   20,130 0 0