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
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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 59,941 18,404 SH   SOLE 0 18,404 0 0
Stericycle, Inc. Stock 858912108 938 13,525 SH   SOLE 0 13,525 0 0
Starbucks Corporation Stock 855244109 1,261 11,783 SH   SOLE 0 11,782 0 0
iShares Gold Trust ETF 464285105 795 43,875 SH   SOLE 0 43,875 0 0
Willis Towers Watson Plc Ltd Shs Stock G96629103 967 4,590 SH   SOLE 0 4,590 0 0
Johnson & Johnson Stock 478160104 3,949 25,092 SH   SOLE 0 25,092 0 0
Costco Wholesale Corporation Stock 22160K105 409 1,086 SH   SOLE 0 1,085 0 0
Cabot Corporation Stock 127055101 3,451 76,884 SH   SOLE 0 76,884 0 0
iShares MSCI Emerging Markets ETF ETF 464287234 2,247 43,495 SH   SOLE 0 43,495 0 0
Scotts Miracle-Gro Co. Stock 810186106 391 1,961 SH   SOLE 0 1,961 0 0
Boston Scientific Corporation Stock 101137107 23,980 667,048 SH   SOLE 0 667,048 0 0
Procter & Gamble Company Stock 742718109 1,118 8,032 SH   SOLE 0 8,031 0 0
Coca-Cola Company Stock 191216100 1,684 30,716 SH   SOLE 0 30,716 0 0
United Parcel Service, Inc. Class B Stock 911312106 557 3,306 SH   SOLE 0 3,306 0 0
PowerShares DB Commodity Index Tracking Fund ETF 46138B103 1,189 80,900 SH   SOLE 0 80,900 0 0
Cabot Microelectronics Corporation Stock 12571T100 4,363 28,840 SH   SOLE 0 28,840 0 0
Intel Corporation Stock 458140100 618 12,406 SH   SOLE 0 12,406 0 0
CME Group Inc. Class A Stock 12572Q105 22,722 124,811 SH   SOLE 0 124,811 0 0
State Street Corporation Stock 857477103 640 8,800 SH   SOLE 0 8,800 0 0
Medtronic Plc Stock G5960L103 652 5,570 SH   SOLE 0 5,570 0 0
Fortive Corp. Stock 34959J108 21,935 309,735 SH   SOLE 0 309,735 0 0
Netflix, Inc. Stock 64110L106 16,776 31,025 SH   SOLE 0 31,025 0 0
Paychex, Inc. Stock 704326107 1,343 14,410 SH   SOLE 0 14,410 0 0
Pool Corporation Com Stock 73278L105 628 1,687 SH   SOLE 0 1,687 0 0
Estee Lauder Companies Inc. Class A Stock 518439104 352 1,323 SH   SOLE 0 1,323 0 0
Merck & Co., Inc. Stock 58933Y105 1,314 16,061 SH   SOLE 0 16,061 0 0
SPDR S&P 500 ETF Trust ETF 78462F103 6,045 16,169 SH   SOLE 0 16,169 0 0
MasterCard Incorporated Class A Stock 57636Q104 415 1,163 SH   SOLE 0 1,163 0 0
First Republic Bank Stock 33616C100 27,072 184,249 SH   SOLE 0 184,248 0 0
Nordson Corp Com Stock 655663102 208 1,037 SH   SOLE 0 1,037 0 0
Diageo plc Sponsored ADR ADR 25243Q205 649 4,087 SH   SOLE 0 4,087 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100 606 2,563 SH   SOLE 0 2,563 0 0
Verizon Communications Inc. Stock 92343V104 1,796 30,566 SH   SOLE 0 30,566 0 0
Chubb Limited Stock H1467J104 307 1,996 SH   SOLE 0 1,996 0 0
FedEx Corporation Stock 31428X106 1,464 5,640 SH   SOLE 0 5,640 0 0
Sherwin-Williams Company Stock 824348106 35,064 47,712 SH   SOLE 0 47,712 0 0
PepsiCo, Inc. Stock 713448108 495 3,337 SH   SOLE 0 3,337 0 0
Honeywell International Inc. Stock 438516106 2,283 10,732 SH   SOLE 0 10,731 0 0
Ingersoll-Rand Plc Stock G8994E103 276 1,900 SH   SOLE 0 1,900 0 0
Home Depot, Inc. Stock 437076102 20,623 77,640 SH   SOLE 0 77,639 0 0
Baxter International Inc. Stock 071813109 677 8,440 SH   SOLE 0 8,440 0 0
Automatic Data Processing, Inc. Stock 053015103 1,395 7,918 SH   SOLE 0 7,918 0 0
Canntrust Hldgs Inc Shs Stock 137800207 9 40,000 SH   SOLE 0 40,000 0 0
Cooper Cos Inc Com New Stock 216648402 224 616 SH   SOLE 0 616 0 0
Infosys Ltd Sponsored Adr ADR 456788108 179 10,565 SH   SOLE 0 10,565 0 0
Becton, Dickinson and Company Stock 075887109 1,846 7,377 SH   SOLE 0 7,377 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103 1,670 10,903 SH   SOLE 0 10,902 0 0
iShares Russell 1000 Growth ETF ETF 464287614 282 1,169 SH   SOLE 0 1,168 0 0
Steris Plc Stock G8473T100 1,438 7,589 SH   SOLE 0 7,588 0 0
Banco Bilbao Vizcaya Argentaria, S.A. Sponsored ADR ADR 05946K101 64 12,877 SH   SOLE 0 12,877 0 0
Waste Connections, Inc. Stock 94106B101 28,573 278,567 SH   SOLE 0 278,567 0 0
Berkshire Hathaway Inc. Class B Stock 084670702 1,888 8,144 SH   SOLE 0 8,144 0 0
Adobe Systems Incorporated Stock 00724F101 1,556 3,112 SH   SOLE 0 3,112 0 0
Alphabet Inc. Class A Stock 02079K305 44,412 25,340 SH   SOLE 0 25,340 0 0
Fiserv Inc Com Stock 337738108 806 7,080 SH   SOLE 0 7,080 0 0
O'Reilly Automotive, Inc. Stock 67103H107 626 1,383 SH   SOLE 0 1,383 0 0
Constellation Brands, Inc. Class A Stock 21036P108 510 2,327 SH   SOLE 0 2,326 0 0
Comcast Corporation Class A Stock 20030N101 2,793 53,305 SH   SOLE 0 53,305 0 0
Generac Holdings Inc. Stock 368736104 728 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104 40,905 183,907 SH   SOLE 0 183,907 0 0
Docusign Inc Com Stock 256163106 259 1,164 SH   SOLE 0 1,164 0 0
Schlumberger NV Stock 806857108 475 21,778 SH   SOLE 0 21,778 0 0
Ameriprise Financial, Inc. Stock 03076C106 336 1,728 SH   SOLE 0 1,728 0 0
Brown & Brown Inc Com Stock 115236101 639 13,475 SH   SOLE 0 13,475 0 0
Berkshire Hathaway Inc. Class A Stock 084670108 348 1 SH   SOLE 0 1 0 0
Copart Inc Com Stock 217204106 216 1,698 SH   SOLE 0 1,698 0 0
Vanguard Mid-Cap Index Fund ETF 922908629 1,830 8,851 SH   SOLE 0 8,851 0 0
NextEra Energy, Inc. Stock 65339F101 492 6,372 SH   SOLE 0 6,372 0 0
NIKE, Inc. Class B Stock 654106103 320 2,265 SH   SOLE 0 2,265 0 0
Msci Inc Com Stock 55354G100 301 675 SH   SOLE 0 675 0 0
Itau Unibanco Holding S.A. Sponsored ADR Pfd ADR 465562106 65 10,753 SH   SOLE 0 10,753 0 0
Vanguard Information Technology Index Fund ETF 92204A702 1,964 5,550 SH   SOLE 0 5,550 0 0
Amphenol Corporation Class A Stock 032095101 425 3,247 SH   SOLE 0 3,247 0 0
Oncternal Therapeutics Inc Com Stock 68236P107 344 70,211 SH   SOLE 0 70,211 0 0
Western Union Company Stock 959802109 260 11,863 SH   SOLE 0 11,863 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106 19,470 223,326 SH   SOLE 0 223,325 0 0
Teradyne, Inc. Stock 880770102 347 2,898 SH   SOLE 0 2,898 0 0
Zogenix Inc Com New Stock 98978L204 325 16,250 SH   SOLE 0 16,250 0 0
Booking Holdings Inc. Stock 09857L108 21,747 9,764 SH   SOLE 0 9,764 0 0
Leidos Holdings, Inc. Stock 525327102 28,666 272,697 SH   SOLE 0 272,696 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714 1,310 10,929 SH   SOLE 0 10,929 0 0
Vanguard Total International Stock ETF ETF 921909768 738 12,260 SH   SOLE 0 12,260 0 0
Lear Corporation Stock 521865204 207 1,300 SH   SOLE 0 1,300 0 0
iShares Russell 2000 ETF ETF 464287655 1,100 5,609 SH   SOLE 0 5,609 0 0
Twilio Inc. Class A Stock 90138F102 17,027 50,300 SH   SOLE 0 50,300 0 0
Fidelity National Information Services, Inc. Stock 31620M106 228 1,612 SH   SOLE 0 1,611 0 0
Sysco Corporation Stock 871829107 1,281 17,255 SH   SOLE 0 17,255 0 0
Ishares Floating Rate Bond Etf ETF 46429B655 2,242 44,200 SH   SOLE 0 44,200 0 0
II-VI Incorporated Stock 902104108 816 10,740 SH   SOLE 0 10,740 0 0
Vontier Corp Com Stock 928881101 16,134 483,044 SH   SOLE 0 483,044 0 0
Eastern Bankshares Inc Com Stock 27627N105 734 45,000 SH   SOLE 0 45,000 0 0
Xylem Inc. Stock 98419M100 316 3,100 SH   SOLE 0 3,100 0 0
Marriott Vacations Worldwide Corp. Stock 57164Y107 1,248 9,094 SH   SOLE 0 9,094 0 0
Cambridge Bancorp Com Stock 132152109 844 12,107 SH   SOLE 0 12,107 0 0
Neogen Corporation Stock 640491106 476 6,000 SH   SOLE 0 6,000 0 0
Visa Inc. Class A Stock 92826C839 48,476 221,625 SH   SOLE 0 221,625 0 0
SVB Financial Group Stock 78486Q101 450 1,160 SH   SOLE 0 1,160 0 0
Vanguard Growth Index Fund ETF 922908736 2,481 9,793 SH   SOLE 0 9,793 0 0
American Tower Corporation REIT 03027X100 31,095 138,531 SH   SOLE 0 138,530 0 0
Zebra Technologies Corp Cl A Stock 989207105 278 723 SH   SOLE 0 723 0 0
Facebook, Inc. Class A Stock 30303M102 19,126 70,018 SH   SOLE 0 70,018 0 0
ASML Holding NV ADR ADR N07059210 231 473 SH   SOLE 0 473 0 0
Lpl Finl Hldgs Inc Com Stock 50212V100 610 5,850 SH   SOLE 0 5,850 0 0
Mondelez Intl Inc. Class A Stock 609207105 1,431 24,479 SH   SOLE 0 24,478 0 0
Broadcom Limited Stock 11135F101 2,800 6,394 SH   SOLE 0 6,394 0 0
UniFirst Corporation Stock 904708104 459 2,167 SH   SOLE 0 2,167 0 0
Novartis AG Sponsored ADR ADR 66987V109 342 3,619 SH   SOLE 0 3,619 0 0
SL Green Realty Corp. REIT 78440X804 1,080 18,130 SH   SOLE 0 18,130 0 0
Accenture Plc Stock G1151C101 616 2,357 SH   SOLE 0 2,357 0 0
Equifax Inc. Stock 294429105 251 1,300 SH   SOLE 0 1,300 0 0
NICE Systems Ltd. Sponsored ADR ADR 653656108 2,076 7,320 SH   SOLE 0 7,320 0 0
AbbVie, Inc. Stock 00287Y109 224 2,089 SH   SOLE 0 2,089 0 0
S&P Global Inc. Stock 78409V104 19,629 59,710 SH   SOLE 0 59,710 0 0
SPDR S&P Biotech ETF ETF 78464A870 256 1,820 SH   SOLE 0 1,820 0 0
iShares Core MSCI Emerging Markets ETF ETF 46434G103 465 7,500 SH   SOLE 0 7,500 0 0
Cabot Oil & Gas Corporation Stock 127097103 348 21,384 SH   SOLE 0 21,384 0 0
PTC Inc. Stock 69370C100 456 3,811 SH   SOLE 0 3,811 0 0
Zoetis, Inc. Class A Stock 98978V103 22,620 136,674 SH   SOLE 0 136,674 0 0
Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR 874039100 660 6,056 SH   SOLE 0 6,056 0 0
Artisan Partners Asset Mgmt In Cl A Stock 04316A108 446 8,850 SH   SOLE 0 8,850 0 0
Blackstone Group L.P. Stock 09260D107 44,499 686,610 SH   SOLE 0 686,609 0 0
ANSYS, Inc. Stock 03662Q105 724 1,990 SH   SOLE 0 1,990 0 0
Church & Dwight Co., Inc. Stock 171340102 436 5,000 SH   SOLE 0 5,000 0 0
Stryker Corporation Stock 863667101 1,075 4,385 SH   SOLE 0 4,385 0 0
General Dynamics Corporation Stock 369550108 238 1,600 SH   SOLE 0 1,600 0 0
ResMed Inc. Stock 761152107 204 961 SH   SOLE 0 961 0 0
McDonald's Corporation Stock 580135101 450 2,096 SH   SOLE 0 2,095 0 0
Cisco Systems, Inc. Stock 17275R102 1,195 26,708 SH   SOLE 0 26,708 0 0
Autodesk, Inc. Stock 052769106 221 723 SH   SOLE 0 723 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819 2,608 28,083 SH   SOLE 0 28,083 0 0
Science Applications International Corp. Stock 808625107 1,223 12,923 SH   SOLE 0 12,922 0 0
RE/MAX Holdings, Inc. Stock 75524W108 20,058 552,109 SH   SOLE 0 552,109 0 0
Charter Communications, Inc. Class A Stock 16119P108 35,974 54,379 SH   SOLE 0 54,379 0 0
Gaming and Leisure Properties, Inc. REIT 36467J108 1,767 41,677 SH   SOLE 0 41,676 0 0
Ambev SA Sponsored ADR ADR 02319V103 42 13,745 SH   SOLE 0 13,745 0 0
iShares Core S&P 500 ETF ETF 464287200 6,336 16,879 SH   SOLE 0 16,879 0 0
Mettler-Toledo International Inc. Stock 592688105 24,917 21,863 SH   SOLE 0 21,863 0 0
Siteone Landscape Supply Inc Com Stock 82982L103 785 4,949 SH   SOLE 0 4,949 0 0
Union Pacific Corporation Stock 907818108 213 1,022 SH   SOLE 0 1,022 0 0
Ecolab Inc. Stock 278865100 269 1,245 SH   SOLE 0 1,245 0 0
Charles Riv Labs Intl Inc Com Stock 159864107 249 997 SH   SOLE 0 997 0 0
salesforce.com, inc. Stock 79466L302 27,337 122,846 SH   SOLE 0 122,846 0 0
IDEXX Laboratories, Inc. Stock 45168D104 1,599 3,198 SH   SOLE 0 3,198 0 0
Thermo Fisher Scientific Inc. Stock 883556102 29,904 64,202 SH   SOLE 0 64,202 0 0
JPMorgan Chase & Co. Stock 46625H100 3,498 27,527 SH   SOLE 0 27,526 0 0
Markel Corp Com Stock 570535104 248 240 SH   SOLE 0 240 0 0
Vanguard FTSE Developed Markets ETF ETF 921943858 2,625 55,613 SH   SOLE 0 55,613 0 0
Danaher Corporation Stock 235851102 5,721 25,753 SH   SOLE 0 25,753 0 0
TJX Companies, Inc. Stock 872540109 211 3,091 SH   SOLE 0 3,091 0 0
Raytheon Technologies Corporation Stock 75513E101 560 7,830 SH   SOLE 0 7,830 0 0
Vanguard FTSE Emerging Markets ETF ETF 922042858 2,971 59,289 SH   SOLE 0 59,289 0 0
Texas Instruments Incorporated Stock 882508104 243 1,480 SH   SOLE 0 1,480 0 0
Vanguard High Dividend Yield Index Fund ETF 921946406 653 7,133 SH   SOLE 0 7,133 0 0
3M Company Stock 88579Y101 461 2,637 SH   SOLE 0 2,637 0 0
Alphabet Inc. Class C Stock 02079K107 3,924 2,240 SH   SOLE 0 2,240 0 0
American Express Company Stock 025816109 1,739 14,380 SH   SOLE 0 14,380 0 0
Amgen Inc. Stock 031162100 2,808 12,215 SH   SOLE 0 12,214 0 0
Applied Materials, Inc. Stock 038222105 3,312 38,383 SH   SOLE 0 38,383 0 0
Analog Devices, Inc. Stock 032654105 272 1,842 SH   SOLE 0 1,842 0 0
Williams Companies, Inc. Stock 969457100 508 25,340 SH   SOLE 0 25,340 0 0
HDFC Bank Limited Sponsored ADR ADR 40415F101 231 3,190 SH   SOLE 0 3,190 0 0
IHS Markit Ltd. Stock G47567105 1,552 17,281 SH   SOLE 0 17,281 0 0
Mercadolibre Inc Com Stock 58733R102 271 162 SH   SOLE 0 162 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844 679 4,809 SH   SOLE 0 4,809 0 0
HealthEquity Inc Stock 42226A107 19,804 284,098 SH   SOLE 0 284,098 0 0
IPG Photonics Corporation Stock 44980X109 895 4,000 SH   SOLE 0 4,000 0 0
Alibaba Group Holding Ltd. Sponsored ADR ADR 01609W102 27,089 116,398 SH   SOLE 0 116,398 0 0
C.H. Robinson Worldwide, Inc. Stock 12541W209 662 7,050 SH   SOLE 0 7,050 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827 942 11,365 SH   SOLE 0 11,365 0 0
Roper Technologies, Inc. Stock 776696106 263 609 SH   SOLE 0 609 0 0
PNC Financial Services Group, Inc. Stock 693475105 1,401 9,400 SH   SOLE 0 9,400 0 0
American Water Works Company, Inc. Stock 030420103 29,413 191,651 SH   SOLE 0 191,651 0 0
Exxon Mobil Corporation Stock 30231G102 2,044 49,599 SH   SOLE 0 49,598 0 0
UnitedHealth Group Incorporated Stock 91324P102 28,182 80,365 SH   SOLE 0 80,365 0 0
Lowe's Companies, Inc. Stock 548661107 621 3,868 SH   SOLE 0 3,868 0 0
Glaukos Corp Com Stock 377322102 411 5,465 SH   SOLE 0 5,465 0 0
PayPal Holdings Inc. Stock 70450Y103 52,383 223,669 SH   SOLE 0 223,669 0 0
Charles Schwab Corporation Stock 808513105 21,688 408,890 SH   SOLE 0 408,890 0 0
Activision Blizzard, Inc. Stock 00507V109 201 2,160 SH   SOLE 0 2,160 0 0
Apple Inc. Stock 037833100 54,806 413,041 SH   SOLE 0 413,040 0 0
Abbott Laboratories Stock 002824100 4,246 38,779 SH   SOLE 0 38,779 0 0
Walt Disney Company Stock 254687106 1,277 7,047 SH   SOLE 0 7,046 0 0
iShares Russell 1000 ETF ETF 464287622 262 1,239 SH   SOLE 0 1,239 0 0
Marsh & McLennan Companies, Inc. Stock 571748102 20,436 174,669 SH   SOLE 0 174,669 0 0
iShares Russell 1000 Value ETF ETF 464287598 2,568 18,784 SH   SOLE 0 18,784 0 0