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
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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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
Amazon.Com, Inc. Stock 023135106   43,291,223 419,123 SH   SOLE 0 419,123 0 0
Technology Select Sector Spdr Fund ETF 81369Y803   466,621 3,090 SH   SOLE 0 3,090 0 0
Starbucks Corporation Stock 855244109   890,695 8,554 SH   SOLE 0 8,553 0 0
Alnylam Pharmaceuticals, Inc Stock 02043Q107   407,651 2,035 SH   SOLE 0 2,035 0 0
Johnson & Johnson Stock 478160104   7,096,822 45,786 SH   SOLE 0 45,785 0 0
Costco Wholesale Corporation Stock 22160K105   342,691 690 SH   SOLE 0 689 0 0
Cabot Corporation Stock 127055101   5,185,769 67,664 SH   SOLE 0 67,664 0 0
Ishares Msci Emerging Markets Etf ETF 464287234   1,453,115 36,825 SH   SOLE 0 36,825 0 0
Las Vegas Sands Corp. Stock 517834107   958,209 16,679 SH   SOLE 0 16,679 0 0
Yum! Brands, Inc. Stock 988498101   220,045 1,666 SH   SOLE 0 1,666 0 0
Boston Scientific Corporation Stock 101137107   212,377 4,245 SH   SOLE 0 4,245 0 0
Procter & Gamble Company Stock 742718109   3,162,314 21,268 SH   SOLE 0 21,267 0 0
Coca-Cola Company Stock 191216100   5,014,316 80,837 SH   SOLE 0 80,836 0 0
Powershares DB Commodity Index Tracking Fund ETF 46138B103   1,683,166 70,900 SH   SOLE 0 70,900 0 0
Cme Group Inc. Class A Stock 12572Q105   4,019,829 20,989 SH   SOLE 0 20,989 0 0
Fortive Corp. Stock 34959J108   29,523,261 433,083 SH   SOLE 0 433,082 0 0
Netflix, Inc. Stock 64110L106   690,960 2,000 SH   SOLE 0 2,000 0 0
Paychex, Inc. Stock 704326107   536,396 4,681 SH   SOLE 0 4,681 0 0
Medical Pptys Trust Inc Com REIT 58463J304   82,200 10,000 SH   SOLE 0 10,000 0 0
Pool Corporation Com Stock 73278L105   606,461 1,771 SH   SOLE 0 1,771 0 0
Merck & Co., Inc. Stock 58933Y105   1,086,880 10,216 SH   SOLE 0 10,216 0 0
Spdr S&P 500 Etf Trust ETF 78462F103   5,874,094 14,348 SH   SOLE 0 14,348 0 0
Nordson Corp Com Stock 655663102   223,149 1,004 SH   SOLE 0 1,004 0 0
Diageo Plc Sponsored Adr ADR 25243Q205   202,197 1,116 SH   SOLE 0 1,116 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100   750,812 2,383 SH   SOLE 0 2,383 0 0
Verizon Communications Inc. Stock 92343V104   573,004 14,734 SH   SOLE 0 14,733 0 0
Sherwin-Williams Company Stock 824348106   29,793,310 132,550 SH   SOLE 0 132,550 0 0
Pepsico, Inc. Stock 713448108   1,074,306 5,893 SH   SOLE 0 5,893 0 0
Te Connectivity Ltd. Stock H84989104   392,007 2,989 SH   SOLE 0 2,989 0 0
Honeywell International Inc. Stock 438516106   5,063,971 26,496 SH   SOLE 0 26,496 0 0
Xcel Energy Inc. Stock 98389B100   250,877 3,720 SH   SOLE 0 3,720 0 0
Home Depot, Inc. Stock 437076102   30,351,228 102,844 SH   SOLE 0 102,843 0 0
Automatic Data Processing, Inc. Stock 053015103   2,456,945 11,036 SH   SOLE 0 11,036 0 0
Cooper Cos Inc Com New Stock 216648402   275,913 739 SH   SOLE 0 739 0 0
Icici Bank Limited Sponsored Adr ADR 45104G104   295,689 13,702 SH   SOLE 0 13,702 0 0
Becton, Dickinson And Company Stock 075887109   230,707 932 SH   SOLE 0 932 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103   3,928,600 26,804 SH   SOLE 0 26,803 0 0
Metropolitan Bk Hldg Corp Com Stock 591774104   2,415,815 71,284 SH   SOLE 0 71,284 0 0
Steris Plc Stock G8473T100   6,277,266 32,817 SH   SOLE 0 32,817 0 0
Banco Bilbao Vizcaya Argentaria, S.A. Sponsored Adr ADR 05946K101   74,406 10,554 SH   SOLE 0 10,554 0 0
United Therapeutics Corp Del Com Stock 91307C102   559,900 2,500 SH   SOLE 0 2,500 0 0
Waste Connections, Inc. Stock 94106B101   36,287,291 260,928 SH   SOLE 0 260,928 0 0
Berkshire Hathaway Inc. Class B Stock 084670702   1,677,856 5,434 SH   SOLE 0 5,434 0 0
Adobe Systems Incorporated Stock 00724F101   32,514,438 84,372 SH   SOLE 0 84,372 0 0
Alphabet Inc. Class A Stock 02079K305   51,948,794 500,808 SH   SOLE 0 500,807 0 0
Fiserv Inc Com Stock 337738108   771,995 6,830 SH   SOLE 0 6,830 0 0
O'Reilly Automotive, Inc. Stock 67103H107   23,342,705 27,495 SH   SOLE 0 27,495 0 0
Constellation Brands, Inc. Class A Stock 21036P108   205,820 911 SH   SOLE 0 911 0 0
Comcast Corporation Class A Stock 20030N101   6,421,944 169,400 SH   SOLE 0 169,399 0 0
Ase Technology Hldg Co Ltd Sponsored Ads ADR 00215W100   139,834 17,545 SH   SOLE 0 17,545 0 0
Generac Holdings Inc. Stock 368736104   345,632 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104   65,722,997 227,967 SH   SOLE 0 227,967 0 0
Schlumberger Nv Stock 806857108   417,497 8,503 SH   SOLE 0 8,503 0 0
Ameriprise Financial, Inc. Stock 03076C106   219,761 717 SH   SOLE 0 717 0 0
Berkshire Hathaway Inc. Class A Stock 084670108   3,724,800 8 SH   SOLE 0 8 0 0
Boeing Company Stock 097023105   697,620 3,284 SH   SOLE 0 3,284 0 0
Vanguard Mid-Cap Index Fund ETF 922908629   2,148,642 10,187 SH   SOLE 0 10,187 0 0
Nextera Energy, Inc. Stock 65339F101   14,740,702 191,239 SH   SOLE 0 191,239 0 0
Align Technology Inc Com Stock 016255101   21,854,427 65,405 SH   SOLE 0 65,405 0 0
Tesla Motors, Inc. Stock 88160R101   458,487 2,210 SH   SOLE 0 2,210 0 0
Linde Plc Com Stock G54950103   255,206 718 SH   SOLE 0 718 0 0
Moog Inc. Class A Stock 615394202   4,554,929 45,210 SH   SOLE 0 45,210 0 0
Arch Cap Group Ltd Ord Stock G0450A105   306,772 4,520 SH   SOLE 0 4,520 0 0
Vanguard S&P 500 Index Fund ETF 922908363   279,796 744 SH   SOLE 0 744 0 0
Astrazeneca Plc Sponsored Adr ADR 046353108   230,372 3,319 SH   SOLE 0 3,319 0 0
Oncternal Therapeutics Inc Com Stock 68236P107   23,716 30,211 SH   SOLE 0 30,211 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106   33,801,420 364,672 SH   SOLE 0 364,671 0 0
Teradyne, Inc. Stock 880770102   215,020 2,000 SH   SOLE 0 2,000 0 0
Anterix Inc Com Stock 03676C100   328,087 9,930 SH   SOLE 0 9,930 0 0
Ishares Russell Top 200 Etf ETF 464289446   583,860 6,000 SH   SOLE 0 6,000 0 0
Inmode Ltd Shs Stock M5425M103   17,810,765 557,283 SH   SOLE 0 557,283 0 0
Wabtec Corporation Stock 929740108   28,712,295 284,111 SH   SOLE 0 284,111 0 0
Eli Lilly And Company Stock 532457108   1,218,798 3,549 SH   SOLE 0 3,549 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714   1,460,333 21,858 SH   SOLE 0 21,858 0 0
Ishares Russell 2000 Etf ETF 464287655   1,805,408 10,120 SH   SOLE 0 10,120 0 0
Carrier Global Corporation Stock 14448C104   1,452,746 31,754 SH   SOLE 0 31,754 0 0
Sysco Corporation Stock 871829107   537,907 6,965 SH   SOLE 0 6,965 0 0
Warner Music Group Corp Stock 934550203   5,881,302 176,245 SH   SOLE 0 176,245 0 0
Ii-Vi Incorporated Stock 19247G107   408,979 10,740 SH   SOLE 0 10,740 0 0
American Electric Power Company, Inc. Stock 025537101   439,884 4,834 SH   SOLE 0 4,834 0 0
Brown-Forman Corporation Class B Stock 115637209   3,358,172 52,251 SH   SOLE 0 52,251 0 0
Bentley Sys Inc Com Cl B Stock 08265T208   270,106 6,283 SH   SOLE 0 6,283 0 0
Eastern Bankshares Inc Com Stock 27627N105   164,199 13,011 SH   SOLE 0 13,011 0 0
Atlassian Corporation Stock 049468101   219,782 1,284 SH   SOLE 0 1,284 0 0
Xylem Inc. Stock 98419M100   324,570 3,100 SH   SOLE 0 3,100 0 0
Marriott Vacations Worldwide Corp. Stock 57164Y107   3,006,291 22,292 SH   SOLE 0 22,291 0 0
Cambridge Bancorp Com Stock 132152109   784,655 12,107 SH   SOLE 0 12,107 0 0
Neogen Corporation Stock 640491106   222,240 12,000 SH   SOLE 0 12,000 0 0
Visa Inc. Class A Stock 92826C839   50,450,398 223,767 SH   SOLE 0 223,766 0 0
Hershey Company Stock 427866108   1,418,336 5,575 SH   SOLE 0 5,575 0 0
Vanguard Growth Index Fund ETF 922908736   2,443,801 9,797 SH   SOLE 0 9,797 0 0
Ads Tec Energy Plc Shs Stock G0085J117   40,500 15,000 SH   SOLE 0 15,000 0 0
American Tower Corporation REIT 03027X100   34,512,740 168,899 SH   SOLE 0 168,898 0 0
Zebra Technologies Corp Cl A Stock 989207105   229,914 723 SH   SOLE 0 723 0 0
Ishares Core S&P Total U.S. Stock Market Etf ETF 464287150   414,085 4,573 SH   SOLE 0 4,573 0 0
Meta Platforms Inc. Stock 30303M102   27,151,633 128,110 SH   SOLE 0 128,110 0 0
Lpl Finl Hldgs Inc Com Stock 50212V100   901,692 4,455 SH   SOLE 0 4,455 0 0
Aspen Technology Inc Com Stock 29109X106   218,800 956 SH   SOLE 0 956 0 0
Palo Alto Networks, Inc. Stock 697435105   253,270 1,268 SH   SOLE 0 1,268 0 0
Mondelez Intl Inc. Class A Stock 609207105   5,938,660 85,179 SH   SOLE 0 85,178 0 0
Broadcom Limited Stock 11135F101   9,213,938 14,362 SH   SOLE 0 14,362 0 0
Vanguard Short-Term Inflation-Protected Securities Etf ETF 922020805   382,560 8,000 SH   SOLE 0 8,000 0 0
Canadian Pacific Railway Limited Stock 13646K108   201,198 2,615 SH   SOLE 0 2,615 0 0
Martin Marietta Materials, Inc. Stock 573284106   682,425 1,922 SH   SOLE 0 1,922 0 0
Ishares Core Msci Eafe Etf ETF 46432F842   211,981 3,171 SH   SOLE 0 3,171 0 0
Accenture Plc Stock G1151C101   372,696 1,304 SH   SOLE 0 1,304 0 0
Equifax Inc. Stock 294429105   263,692 1,300 SH   SOLE 0 1,300 0 0
Nice Systems Ltd. Sponsored Adr ADR 653656108   1,648,008 7,200 SH   SOLE 0 7,200 0 0
Nvidia Corporation Stock 67066G104   235,862 849 SH   SOLE 0 849 0 0
Abbvie, Inc. Stock 00287Y109   413,406 2,594 SH   SOLE 0 2,594 0 0
S&P Global Inc. Stock 78409V104   33,974,060 98,541 SH   SOLE 0 98,541 0 0
Interactive Brokers Group Inc Com Cl A Stock 45841N107   214,656 2,600 SH   SOLE 0 2,600 0 0
Cabot Oil & Gas Corporation Stock 127097103   524,763 21,384 SH   SOLE 0 21,384 0 0
Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored Adr ADR 874039100   318,128 3,420 SH   SOLE 0 3,420 0 0
Blackstone Group L.P. Stock 09260D107   40,522,262 461,319 SH   SOLE 0 461,319 0 0
Ansys, Inc. Stock 03662Q105   233,293 701 SH   SOLE 0 701 0 0
Church & Dwight Co., Inc. Stock 171340102   888,963 10,055 SH   SOLE 0 10,055 0 0
Stryker Corporation Stock 863667101   421,068 1,475 SH   SOLE 0 1,475 0 0
General Dynamics Corporation Stock 369550108   365,136 1,600 SH   SOLE 0 1,600 0 0
Mcdonald'S Corporation Stock 580135101   416,131 1,488 SH   SOLE 0 1,488 0 0
Cisco Systems, Inc. Stock 17275R102   735,767 14,075 SH   SOLE 0 14,074 0 0
Autodesk, Inc. Stock 052769106   22,634,069 108,734 SH   SOLE 0 108,734 0 0
At&T Inc. Stock 00206R102   336,625 17,487 SH   SOLE 0 17,487 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819   2,506,076 32,657 SH   SOLE 0 32,656 0 0
Charter Communications, Inc. Class A Stock 16119P108   25,057,017 70,068 SH   SOLE 0 70,068 0 0
Gaming And Leisure Properties, Inc. REIT 36467J108   4,756,315 91,362 SH   SOLE 0 91,362 0 0
Ambev Sa Sponsored Adr ADR 02319V103   47,534 16,856 SH   SOLE 0 16,856 0 0
Ishares Core S&P 500 Etf ETF 464287200   8,650,895 21,044 SH   SOLE 0 21,044 0 0
Mettler-Toledo International Inc. Stock 592688105   1,002,288 655 SH   SOLE 0 655 0 0
Siteone Landscape Supply Inc Com Stock 82982L103   650,133 4,750 SH   SOLE 0 4,750 0 0
Union Pacific Corporation Stock 907818108   214,342 1,065 SH   SOLE 0 1,065 0 0
Carmax Inc Com Stock 143130102   15,628,461 243,131 SH   SOLE 0 243,131 0 0
Salesforce.Com, Inc. Stock 79466L302   35,783,794 179,116 SH   SOLE 0 179,116 0 0
Idexx Laboratories, Inc. Stock 45168D104   534,085 1,068 SH   SOLE 0 1,068 0 0
Thermo Fisher Scientific Inc. Stock 883556102   29,380,258 50,975 SH   SOLE 0 50,974 0 0
Lockheed Martin Corporation Stock 539830109   2,930,891 6,200 SH   SOLE 0 6,199 0 0
Jpmorgan Chase & Co. Stock 46625H100   4,534,180 34,795 SH   SOLE 0 34,795 0 0
Chevron Corporation Stock 166764100   1,113,255 6,823 SH   SOLE 0 6,823 0 0
Vanguard Ftse Developed Markets Etf ETF 921943858   1,811,046 40,094 SH   SOLE 0 40,094 0 0
Danaher Corporation Stock 235851102   3,003,854 11,918 SH   SOLE 0 11,918 0 0
Wal-Mart Stores, Inc. Stock 931142103   748,406 5,076 SH   SOLE 0 5,075 0 0
Oracle Corporation Stock 68389X105   369,822 3,980 SH   SOLE 0 3,980 0 0
Raytheon Technologies Corporation Stock 75513E101   1,668,825 17,041 SH   SOLE 0 17,041 0 0
Vanguard Ftse Emerging Markets Etf ETF 922042858   3,345,241 82,803 SH   SOLE 0 82,803 0 0
Texas Instruments Incorporated Stock 882508104   779,010 4,188 SH   SOLE 0 4,188 0 0
Pfizer Inc. Stock 717081103   459,176 11,254 SH   SOLE 0 11,254 0 0
Morgan Stanley Stock 617446448   5,067,534 57,717 SH   SOLE 0 57,716 0 0
Caterpillar Inc. Stock 149123101   1,329,805 5,811 SH   SOLE 0 5,811 0 0
Alphabet Inc. Class C Stock 02079K107   4,743,856 45,614 SH   SOLE 0 45,614 0 0
American Express Company Stock 025816109   32,878,284 199,323 SH   SOLE 0 199,322 0 0
Amgen Inc. Stock 031162100   278,738 1,153 SH   SOLE 0 1,153 0 0
Applied Materials, Inc. Stock 038222105   4,389,369 35,735 SH   SOLE 0 35,735 0 0
Otis Worldwide Corporation Stock 68902V107   4,337,523 51,392 SH   SOLE 0 51,392 0 0
Analog Devices, Inc. Stock 032654105   493,814 2,504 SH   SOLE 0 2,503 0 0
Williams Companies, Inc. Stock 969457100   4,686,733 156,957 SH   SOLE 0 156,956 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844   638,217 4,144 SH   SOLE 0 4,144 0 0
Healthequity Inc Stock 42226A107   26,504,571 451,449 SH   SOLE 0 451,449 0 0
Ipg Photonics Corporation Stock 44980X109   493,240 4,000 SH   SOLE 0 4,000 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827   897,993 11,740 SH   SOLE 0 11,740 0 0
Philip Morris International Inc. Stock 718172109   1,765,138 18,151 SH   SOLE 0 18,150 0 0
Pnc Financial Services Group, Inc. Stock 693475105   922,365 7,257 SH   SOLE 0 7,257 0 0
Bristol-Myers Squibb Company Stock 110122108   2,936,665 42,370 SH   SOLE 0 42,370 0 0
Altria Group, Inc. Stock 02209S103   591,663 13,260 SH   SOLE 0 13,260 0 0
Loews Corp Com Stock 540424108   777,062 13,393 SH   SOLE 0 13,393 0 0
American Water Works Company, Inc. Stock 030420103   26,877,483 183,477 SH   SOLE 0 183,476 0 0
Agilent Technologies, Inc. Stock 00846U101   303,656 2,195 SH   SOLE 0 2,195 0 0
Exxon Mobil Corporation Stock 30231G102   2,612,962 23,828 SH   SOLE 0 23,827 0 0
Unitedhealth Group Incorporated Stock 91324P102   33,477,269 70,838 SH   SOLE 0 70,837 0 0
Travelers Companies, Inc. Stock 89417E109   1,016,461 5,930 SH   SOLE 0 5,930 0 0
Deere & Company Stock 244199105   710,566 1,721 SH   SOLE 0 1,721 0 0
Novo Nordisk A/S Sponsored Adr Class B ADR 670100205   211,020 1,326 SH   SOLE 0 1,326 0 0
Paypal Holdings Inc. Stock 70450Y103   22,510,666 296,427 SH   SOLE 0 296,427 0 0
Charles Schwab Corporation Stock 808513105   32,111,085 613,041 SH   SOLE 0 613,040 0 0
Toronto-Dominion Bank Stock 891160509   497,170 8,300 SH   SOLE 0 8,300 0 0
Blackrock, Inc. Stock 09247X101   424,222 634 SH   SOLE 0 634 0 0
Apple Inc. Stock 037833100   52,913,566 320,883 SH   SOLE 0 320,882 0 0
Abbott Laboratories Stock 002824100   6,934,997 68,487 SH   SOLE 0 68,487 0 0
Walt Disney Company Stock 254687106   801,132 8,001 SH   SOLE 0 8,000 0 0
Booking Holdings Inc Stock 09857L108   30,578,309 11,528 SH   SOLE 0 11,528 0 0
Ishares Russell 1000 Value Etf ETF 464287598   3,933,028 25,831 SH   SOLE 0 25,831 0 0