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
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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
Amazon.com, Inc. Stock 023135106 49,413 17,911 SH   SOLE 0 17,911 0 0
Starbucks Corporation Stock 855244109 952 12,933 SH   SOLE 0 12,932 0 0
iShares Gold Trust ETF 464285105 576 33,875 SH   SOLE 0 33,875 0 0
Johnson & Johnson Stock 478160104 3,787 26,927 SH   SOLE 0 26,926 0 0
Kirby Corporation Stock 497266106 221 4,117 SH   SOLE 0 4,117 0 0
Costco Wholesale Corporation Stock 22160K105 326 1,074 SH   SOLE 0 1,074 0 0
Cabot Corporation Stock 127055101 2,849 76,884 SH   SOLE 0 76,884 0 0
iShares MSCI Emerging Markets ETF ETF 464287234 1,739 43,495 SH   SOLE 0 43,495 0 0
Scotts Miracle-Gro Co. Stock 810186106 264 1,961 SH   SOLE 0 1,961 0 0
Boston Scientific Corporation Stock 101137107 22,026 627,343 SH   SOLE 0 627,343 0 0
Procter & Gamble Company Stock 742718109 1,065 8,907 SH   SOLE 0 8,907 0 0
Coca-Cola Company Stock 191216100 1,197 26,788 SH   SOLE 0 26,788 0 0
PowerShares DB Commodity Index Tracking Fund ETF 46138B103 996 80,900 SH   SOLE 0 80,900 0 0
Cabot Microelectronics Corporation Stock 12709P103 4,024 28,840 SH   SOLE 0 28,840 0 0
Intel Corporation Stock 458140100 812 13,566 SH   SOLE 0 13,566 0 0
CME Group Inc. Class A Stock 12572Q105 18,965 116,681 SH   SOLE 0 116,680 0 0
State Street Corporation Stock 857477103 559 8,800 SH   SOLE 0 8,800 0 0
Medtronic Plc Stock G5960L103 500 5,450 SH   SOLE 0 5,450 0 0
Netflix, Inc. Stock 64110L106 1,444 3,174 SH   SOLE 0 3,174 0 0
Paychex, Inc. Stock 704326107 532 7,020 SH   SOLE 0 7,020 0 0
Pool Corporation Com Stock 73278L105 459 1,687 SH   SOLE 0 1,687 0 0
Estee Lauder Companies Inc. Class A Stock 518439104 272 1,440 SH   SOLE 0 1,440 0 0
Merck & Co., Inc. Stock 58933Y105 1,366 17,671 SH   SOLE 0 17,671 0 0
SPDR S&P 500 ETF Trust ETF 78462F103 4,954 16,066 SH   SOLE 0 16,065 0 0
MasterCard Incorporated Class A Stock 57636Q104 299 1,012 SH   SOLE 0 1,012 0 0
First Republic Bank Stock 33616C100 17,965 169,494 SH   SOLE 0 169,494 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100 1,336 4,603 SH   SOLE 0 4,603 0 0
Verizon Communications Inc. Stock 92343V104 1,525 27,668 SH   SOLE 0 27,668 0 0
Chubb Limited Stock H1467J104 237 1,871 SH   SOLE 0 1,871 0 0
Sherwin-Williams Company Stock 824348106 27,160 47,003 SH   SOLE 0 47,002 0 0
PepsiCo, Inc. Stock 713448108 368 2,782 SH   SOLE 0 2,782 0 0
Honeywell International Inc. Stock 438516106 1,665 11,512 SH   SOLE 0 11,512 0 0
Home Depot, Inc. Stock 437076102 18,487 73,799 SH   SOLE 0 73,798 0 0
Baxter International Inc. Stock 071813109 819 9,510 SH   SOLE 0 9,510 0 0
Automatic Data Processing, Inc. Stock 053015103 1,334 8,958 SH   SOLE 0 8,958 0 0
Canntrust Hldgs Inc Shs Stock 137800207 14 40,000 SH   SOLE 0 40,000 0 0
Infosys Ltd Sponsored Adr ADR 456788108 137 14,148 SH   SOLE 0 14,148 0 0
Becton, Dickinson and Company Stock 075887109 1,570 6,561 SH   SOLE 0 6,560 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103 1,268 10,052 SH   SOLE 0 10,052 0 0
iShares Russell 1000 Growth ETF ETF 464287614 241 1,257 SH   SOLE 0 1,257 0 0
Steris Plc Stock G8473T100 1,052 6,853 SH   SOLE 0 6,852 0 0
Banco Bilbao Vizcaya Argentaria, S.A. Sponsored ADR ADR 05946K101 44 12,877 SH   SOLE 0 12,877 0 0
Waste Connections, Inc. Stock 94106B101 25,074 267,338 SH   SOLE 0 267,337 0 0
Berkshire Hathaway Inc. Class B Stock 084670702 1,892 10,598 SH   SOLE 0 10,598 0 0
Adobe Systems Incorporated Stock 00724F101 1,314 3,019 SH   SOLE 0 3,019 0 0
Evolus Inc Com Stock 30052C107 55 10,300 SH   SOLE 0 10,300 0 0
Alphabet Inc. Class A Stock 02079K305 34,599 24,399 SH   SOLE 0 24,399 0 0
Fiserv Inc Com Stock 337738108 907 9,290 SH   SOLE 0 9,290 0 0
O'Reilly Automotive, Inc. Stock 67103H107 583 1,383 SH   SOLE 0 1,383 0 0
Intuit Inc. Stock 461202103 293 989 SH   SOLE 0 989 0 0
Constellation Brands, Inc. Class A Stock 21036P108 591 3,376 SH   SOLE 0 3,376 0 0
Comcast Corporation Class A Stock 20030N101 1,933 49,584 SH   SOLE 0 49,583 0 0
Generac Holdings Inc. Stock 368736104 390 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104 36,210 177,925 SH   SOLE 0 177,925 0 0
Docusign Inc Com Stock 256163106 355 2,061 SH   SOLE 0 2,061 0 0
Schlumberger NV Stock 806857108 402 21,838 SH   SOLE 0 21,838 0 0
Ameriprise Financial, Inc. Stock 03076C106 304 2,028 SH   SOLE 0 2,028 0 0
Berkshire Hathaway Inc. Class A Stock 084670108 267 1 SH   SOLE 0 1 0 0
Boeing Company Stock 097023105 779 4,250 SH   SOLE 0 4,250 0 0
Copart Inc Com Stock 217204106 231 2,770 SH   SOLE 0 2,770 0 0
Vanguard Mid-Cap Index Fund ETF 922908629 1,068 6,518 SH   SOLE 0 6,518 0 0
NextEra Energy, Inc. Stock 65339F101 391 1,628 SH   SOLE 0 1,628 0 0
NIKE, Inc. Class B Stock 654106103 222 2,265 SH   SOLE 0 2,265 0 0
Msci Inc Com Stock 55354G100 225 675 SH   SOLE 0 675 0 0
Itau Unibanco Holding S.A. Sponsored ADR Pfd ADR 465562106 50 10,753 SH   SOLE 0 10,753 0 0
Financial Select Sector SPDR Fund ETF 81369Y605 620 26,780 SH   SOLE 0 26,780 0 0
Vanguard Information Technology Index Fund ETF 92204A702 1,547 5,550 SH   SOLE 0 5,550 0 0
Thor Industries, Inc. Stock 885160101 224 2,099 SH   SOLE 0 2,099 0 0
Amphenol Corporation Class A Stock 032095101 311 3,247 SH   SOLE 0 3,247 0 0
Moog Inc. Class A Stock 615394202 715 13,500 SH   SOLE 0 13,500 0 0
Oncternal Therapeutics Inc Com Stock 68236P107 199 70,211 SH   SOLE 0 70,211 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106 16,459 211,584 SH   SOLE 0 211,583 0 0
Teradyne, Inc. Stock 880770102 245 2,898 SH   SOLE 0 2,898 0 0
Zogenix Inc Com New Stock 98978L204 439 16,250 SH   SOLE 0 16,250 0 0
Booking Holdings Inc. Stock 09857L108 15,259 9,583 SH   SOLE 0 9,583 0 0
Leidos Holdings, Inc. Stock 525327102 21,992 234,779 SH   SOLE 0 234,778 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714 1,080 10,929 SH   SOLE 0 10,929 0 0
Vanguard Total International Stock ETF ETF 921909768 603 12,268 SH   SOLE 0 12,268 0 0
iShares Russell 2000 ETF ETF 464287655 597 4,172 SH   SOLE 0 4,172 0 0
Twilio Inc. Class A Stock 90138F102 20,453 93,214 SH   SOLE 0 93,214 0 0
Ishares Floating Rate Bond Etf ETF 46429B655 2,236 44,200 SH   SOLE 0 44,200 0 0
II-VI Incorporated Stock 902104108 507 10,740 SH   SOLE 0 10,740 0 0
Xylem Inc. Stock 98419M100 201 3,100 SH   SOLE 0 3,100 0 0
Cambridge Bancorp Com Stock 132152109 717 12,107 SH   SOLE 0 12,107 0 0
Neogen Corporation Stock 640491106 466 6,000 SH   SOLE 0 6,000 0 0
Visa Inc. Class A Stock 92826C839 39,862 206,358 SH   SOLE 0 206,358 0 0
SVB Financial Group Stock 78486Q101 250 1,160 SH   SOLE 0 1,160 0 0
Vanguard Growth Index Fund ETF 922908736 2,398 11,868 SH   SOLE 0 11,867 0 0
Phillips 66 Stock 718546104 4,309 59,933 SH   SOLE 0 59,933 0 0
American Tower Corporation REIT 03027X100 33,353 129,006 SH   SOLE 0 129,006 0 0
Facebook, Inc. Class A Stock 30303M102 14,971 65,933 SH   SOLE 0 65,933 0 0
Mondelez Intl Inc. Class A Stock 609207105 1,147 22,440 SH   SOLE 0 22,439 0 0
Broadcom Limited Stock 11135F101 1,828 5,792 SH   SOLE 0 5,791 0 0
UniFirst Corporation Stock 904708104 388 2,167 SH   SOLE 0 2,167 0 0
Novartis AG Sponsored ADR ADR 66987V109 339 3,884 SH   SOLE 0 3,884 0 0
Accenture Plc Stock G1151C101 659 3,070 SH   SOLE 0 3,070 0 0
NICE Systems Ltd. Sponsored ADR ADR 653656108 1,363 7,200 SH   SOLE 0 7,200 0 0
AbbVie, Inc. Stock 00287Y109 223 2,269 SH   SOLE 0 2,269 0 0
S&P Global Inc. Stock 78409V104 19,019 57,724 SH   SOLE 0 57,724 0 0
SPDR S&P Biotech ETF ETF 78464A870 204 1,820 SH   SOLE 0 1,820 0 0
iShares Core MSCI Emerging Markets ETF ETF 46434G103 357 7,500 SH   SOLE 0 7,500 0 0
Cabot Oil & Gas Corporation Stock 127097103 367 21,384 SH   SOLE 0 21,384 0 0
PTC Inc. Stock 69370C100 321 4,131 SH   SOLE 0 4,131 0 0
Zoetis, Inc. Class A Stock 98978V103 18,171 132,599 SH   SOLE 0 132,598 0 0
Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR 874039100 415 7,308 SH   SOLE 0 7,308 0 0
Blackstone Group L.P. Stock 09260D107 36,582 645,632 SH   SOLE 0 645,632 0 0
ANSYS, Inc. Stock 03662Q105 581 1,990 SH   SOLE 0 1,990 0 0
Church & Dwight Co., Inc. Stock 171340102 521 6,742 SH   SOLE 0 6,742 0 0
Stryker Corporation Stock 863667101 929 5,155 SH   SOLE 0 5,155 0 0
General Dynamics Corporation Stock 369550108 239 1,600 SH   SOLE 0 1,600 0 0
McDonald's Corporation Stock 580135101 407 2,205 SH   SOLE 0 2,204 0 0
Dover Corporation Stock 260003108 231 2,390 SH   SOLE 0 2,390 0 0
Cisco Systems, Inc. Stock 17275R102 1,566 33,574 SH   SOLE 0 33,574 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819 2,917 31,305 SH   SOLE 0 31,305 0 0
Science Applications International Corp. Stock 808625107 883 11,361 SH   SOLE 0 11,360 0 0
RE/MAX Holdings, Inc. Stock 75524W108 16,591 527,856 SH   SOLE 0 527,856 0 0
Charter Communications, Inc. Class A Stock 16119P108 26,233 51,433 SH   SOLE 0 51,433 0 0
Gaming and Leisure Properties, Inc. REIT 36467J108 1,263 36,510 SH   SOLE 0 36,509 0 0
Ambev SA Sponsored ADR ADR 02319V103 36 13,745 SH   SOLE 0 13,745 0 0
Lululemon Athletica Inc Stock 550021109 205 656 SH   SOLE 0 656 0 0
iShares Core S&P 500 ETF ETF 464287200 6,147 19,850 SH   SOLE 0 19,850 0 0
Mettler-Toledo International Inc. Stock 592688105 17,582 21,826 SH   SOLE 0 21,826 0 0
Siteone Landscape Supply Inc Com Stock 82982L103 564 4,949 SH   SOLE 0 4,949 0 0
Union Pacific Corporation Stock 907818108 230 1,361 SH   SOLE 0 1,361 0 0
Ecolab Inc. Stock 278865100 396 1,988 SH   SOLE 0 1,988 0 0
salesforce.com, inc. Stock 79466L302 22,369 119,411 SH   SOLE 0 119,411 0 0
Flir Systems Inc Stock 302445101 203 5,000 SH   SOLE 0 5,000 0 0
Northrop Grumman Corporation Stock 666807102 638 2,075 SH   SOLE 0 2,075 0 0
IDEXX Laboratories, Inc. Stock 45168D104 1,627 4,928 SH   SOLE 0 4,928 0 0
Thermo Fisher Scientific Inc. Stock 883556102 22,196 61,257 SH   SOLE 0 61,257 0 0
JPMorgan Chase & Co. Stock 46625H100 2,512 26,710 SH   SOLE 0 26,710 0 0
Markel Corp Com Stock 570535104 268 290 SH   SOLE 0 290 0 0
Vanguard FTSE Developed Markets ETF ETF 921943858 2,394 61,704 SH   SOLE 0 61,704 0 0
Danaher Corporation Stock 235851102 4,826 27,290 SH   SOLE 0 27,290 0 0
TJX Companies, Inc. Stock 872540109 306 6,045 SH   SOLE 0 6,045 0 0
Raytheon Technologies Corporation Stock 75513E101 887 14,391 SH   SOLE 0 14,391 0 0
Vanguard FTSE Emerging Markets ETF ETF 922042858 2,439 61,568 SH   SOLE 0 61,567 0 0
Texas Instruments Incorporated Stock 882508104 270 2,125 SH   SOLE 0 2,125 0 0
Vanguard High Dividend Yield Index Fund ETF 921946406 523 6,641 SH   SOLE 0 6,641 0 0
3M Company Stock 88579Y101 759 4,866 SH   SOLE 0 4,866 0 0
Gilead Sciences, Inc. Stock 375558103 204 2,647 SH   SOLE 0 2,647 0 0
2U Inc Com Stock 90214J101 228 6,000 SH   SOLE 0 6,000 0 0
Alphabet Inc. Class C Stock 02079K107 3,207 2,269 SH   SOLE 0 2,269 0 0
Amgen Inc. Stock 031162100 3,906 16,561 SH   SOLE 0 16,561 0 0
Applied Materials, Inc. Stock 038222105 2,320 38,383 SH   SOLE 0 38,383 0 0
Analog Devices, Inc. Stock 032654105 241 1,961 SH   SOLE 0 1,961 0 0
Williams Companies, Inc. Stock 969457100 387 20,345 SH   SOLE 0 20,344 0 0
IHS Markit Ltd. Stock G47567105 1,035 13,710 SH   SOLE 0 13,710 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844 382 3,260 SH   SOLE 0 3,260 0 0
HealthEquity Inc Stock 42226A107 15,614 266,128 SH   SOLE 0 266,128 0 0
iShares Asia 50 ETF ETF 464288430 273 4,200 SH   SOLE 0 4,200 0 0
IPG Photonics Corporation Stock 44980X109 642 4,000 SH   SOLE 0 4,000 0 0
Alibaba Group Holding Ltd. Sponsored ADR ADR 01609W102 24,207 112,227 SH   SOLE 0 112,227 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827 1,044 12,565 SH   SOLE 0 12,565 0 0
Roper Technologies, Inc. Stock 776696106 202 520 SH   SOLE 0 520 0 0
Bristol-Myers Squibb Company Stock 110122108 322 5,470 SH   SOLE 0 5,470 0 0
American Water Works Company, Inc. Stock 030420103 23,637 183,721 SH   SOLE 0 183,720 0 0
Exxon Mobil Corporation Stock 30231G102 3,069 68,638 SH   SOLE 0 68,638 0 0
UnitedHealth Group Incorporated Stock 91324P102 2,083 7,064 SH   SOLE 0 7,063 0 0
Lowe's Companies, Inc. Stock 548661107 573 4,243 SH   SOLE 0 4,243 0 0
Shopify Inc Cl A Stock 82509L107 232 244 SH   SOLE 0 244 0 0
Glaukos Corp Com Stock 377322102 221 5,751 SH   SOLE 0 5,751 0 0
PayPal Holdings Inc. Stock 70450Y103 44,419 254,943 SH   SOLE 0 254,943 0 0
Charles Schwab Corporation Stock 808513105 14,484 429,272 SH   SOLE 0 429,272 0 0
Apple Inc. Stock 037833100 44,469 121,901 SH   SOLE 0 121,900 0 0
Abbott Laboratories Stock 002824100 3,479 38,047 SH   SOLE 0 38,047 0 0
Walt Disney Company Stock 254687106 993 8,908 SH   SOLE 0 8,907 0 0
iShares Russell 1000 ETF ETF 464287622 214 1,246 SH   SOLE 0 1,246 0 0
Marsh & McLennan Companies, Inc. Stock 571748102 18,753 174,662 SH   SOLE 0 174,661 0 0
iShares Russell 1000 Value ETF ETF 464287598 2,115 18,784 SH   SOLE 0 18,784 0 0