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   69,216,632 383,727 SH   SOLE 0 383,726 0 0
Rollins Inc Com Stock 775711104   216,682 4,683 SH   SOLE 0 4,683 0 0
Powershares Qqq Trust ETF 46090E103   555,963 1,252 SH   SOLE 0 1,252 0 0
Technology Select Sector Spdr Fund ETF 81369Y803   1,268,156 6,089 SH   SOLE 0 6,089 0 0
Starbucks Corporation Stock 855244109   662,796 7,252 SH   SOLE 0 7,252 0 0
Dollar General Corporation Stock 256677105   4,978,146 31,899 SH   SOLE 0 31,898 0 0
Johnson & Johnson Stock 478160104   4,695,413 29,682 SH   SOLE 0 29,682 0 0
Costco Wholesale Corporation Stock 22160K105   658,275 899 SH   SOLE 0 898 0 0
Cabot Corporation Stock 127055101   6,238,621 67,664 SH   SOLE 0 67,664 0 0
Ishares Msci Emerging Markets Etf ETF 464287234   1,512,771 36,825 SH   SOLE 0 36,825 0 0
Las Vegas Sands Corp. Stock 517834107   517,000 10,000 SH   SOLE 0 10,000 0 0
Watsco, Inc. Stock 942622200   238,015 551 SH   SOLE 0 551 0 0
Yum! Brands, Inc. Stock 988498101   230,991 1,666 SH   SOLE 0 1,666 0 0
Boston Scientific Corporation Stock 101137107   258,139 3,769 SH   SOLE 0 3,769 0 0
Procter & Gamble Company Stock 742718109   3,284,756 20,245 SH   SOLE 0 20,245 0 0
Coca-Cola Company Stock 191216100   5,768,989 94,295 SH   SOLE 0 94,295 0 0
Marriott International, Inc. Class A Stock 571903202   5,125,236 20,313 SH   SOLE 0 20,313 0 0
Powershares DB Commodity Index Tracking Fund ETF 46138B103   1,628,573 70,900 SH   SOLE 0 70,900 0 0
Cme Group Inc. Class A Stock 12572Q105   5,295,553 24,597 SH   SOLE 0 24,597 0 0
Fortive Corp. Stock 34959J108   34,615,629 402,414 SH   SOLE 0 402,413 0 0
Netflix, Inc. Stock 64110L106   1,214,660 2,000 SH   SOLE 0 2,000 0 0
Paychex, Inc. Stock 704326107   502,743 4,094 SH   SOLE 0 4,094 0 0
Integer Holdings Corporation Stock 45826H109   264,397 2,266 SH   SOLE 0 2,266 0 0
Tetra Tech Inc New Com Stock 88162G103   445,705 2,413 SH   SOLE 0 2,413 0 0
Pool Corporation Com Stock 73278L105   714,599 1,771 SH   SOLE 0 1,771 0 0
Merck & Co., Inc. Stock 58933Y105   4,463,737 33,829 SH   SOLE 0 33,829 0 0
Spdr S&P 500 Etf Trust ETF 78462F103   5,700,467 10,898 SH   SOLE 0 10,898 0 0
Mastercard Incorporated Class A Stock 57636Q104   576,439 1,197 SH   SOLE 0 1,197 0 0
Nordson Corp Com Stock 655663102   275,638 1,004 SH   SOLE 0 1,004 0 0
Allstate Corporation Stock 020002101   324,567 1,876 SH   SOLE 0 1,876 0 0
Ishares Core U.S. REIT ETF ETF 464288521   572,809 10,647 SH   SOLE 0 10,647 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100   947,211 2,266 SH   SOLE 0 2,266 0 0
Verizon Communications Inc. Stock 92343V104   233,507 5,565 SH   SOLE 0 5,565 0 0
Sherwin-Williams Company Stock 824348106   35,004,500 100,782 SH   SOLE 0 100,781 0 0
Pepsico, Inc. Stock 713448108   913,213 5,218 SH   SOLE 0 5,218 0 0
Honeywell International Inc. Stock 438516106   6,039,277 29,424 SH   SOLE 0 29,424 0 0
Home Depot, Inc. Stock 437076102   35,741,461 93,174 SH   SOLE 0 93,173 0 0
Automatic Data Processing, Inc. Stock 053015103   2,013,154 8,061 SH   SOLE 0 8,061 0 0
Cooper Cos Inc Com New Stock 216648501   293,422 2,892 SH   SOLE 0 2,892 0 0
Icici Bank Limited Sponsored Adr ADR 45104G104   362,081 13,710 SH   SOLE 0 13,710 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103   5,844,597 28,530 SH   SOLE 0 28,529 0 0
Ishares Russell 1000 Growth Etf ETF 464287614   494,168 1,466 SH   SOLE 0 1,466 0 0
Metropolitan Bk Hldg Corp Com Stock 591774104   2,744,434 71,284 SH   SOLE 0 71,284 0 0
Steris Plc Stock G8473T100   6,848,128 30,460 SH   SOLE 0 30,460 0 0
Saia Inc Com Stock 78709Y105   241,605 413 SH   SOLE 0 413 0 0
Henry Jack & Assoc Inc Com Stock 426281101   207,781 1,196 SH   SOLE 0 1,196 0 0
Banco Bilbao Vizcaya Argentaria, S.A. Sponsored Adr ADR 05946K101   124,959 10,554 SH   SOLE 0 10,554 0 0
Waste Connections, Inc. Stock 94106B101   38,881,871 226,044 SH   SOLE 0 226,044 0 0
Berkshire Hathaway Inc. Class B Stock 084670702   2,755,668 6,553 SH   SOLE 0 6,553 0 0
Adobe Systems Incorporated Stock 00724F101   25,774,463 51,079 SH   SOLE 0 51,079 0 0
Alphabet Inc. Class A Stock 02079K305   59,109,441 391,635 SH   SOLE 0 391,634 0 0
O'Reilly Automotive, Inc. Stock 67103H107   20,429,906 18,098 SH   SOLE 0 18,097 0 0
Intuit Inc. Stock 461202103   200,850 309 SH   SOLE 0 309 0 0
Constellation Brands, Inc. Class A Stock 21036P108   4,057,171 14,929 SH   SOLE 0 14,929 0 0
Comcast Corporation Class A Stock 20030N101   7,163,585 165,250 SH   SOLE 0 165,249 0 0
Ase Technology Hldg Co Ltd Sponsored Ads ADR 00215W100   147,101 13,385 SH   SOLE 0 13,385 0 0
Generac Holdings Inc. Stock 368736104   403,648 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104   88,126,281 209,465 SH   SOLE 0 209,465 0 0
Ameriprise Financial, Inc. Stock 03076C106   234,565 535 SH   SOLE 0 535 0 0
Merit Med Sys Inc Com Stock 589889104   363,903 4,804 SH   SOLE 0 4,804 0 0
Berkshire Hathaway Inc. Class A Stock 084670108   4,441,080 7 SH   SOLE 0 7 0 0
Boeing Company Stock 097023105   310,714 1,610 SH   SOLE 0 1,610 0 0
Vanguard Mid-Cap Index Fund ETF 922908629   2,063,344 8,258 SH   SOLE 0 8,258 0 0
Nextera Energy, Inc. Stock 65339F101   40,043,767 626,565 SH   SOLE 0 626,564 0 0
Tesla Motors, Inc. Stock 88160R101   443,870 2,525 SH   SOLE 0 2,525 0 0
Linde Plc Com Stock G54950103   325,024 700 SH   SOLE 0 700 0 0
Thor Industries, Inc. Stock 885160101   245,475 2,092 SH   SOLE 0 2,092 0 0
Moog Inc. Class A Stock 615394202   7,012,156 43,922 SH   SOLE 0 43,922 0 0
Arch Cap Group Ltd Ord Stock G0450A105   567,859 6,143 SH   SOLE 0 6,143 0 0
Kkr & Co. L.P. Stock 48251W104   201,160 2,000 SH   SOLE 0 2,000 0 0
Astrazeneca Plc Sponsored Adr ADR 046353108   221,068 3,263 SH   SOLE 0 3,263 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106   39,720,215 267,584 SH   SOLE 0 267,584 0 0
Teradyne, Inc. Stock 880770102   225,660 2,000 SH   SOLE 0 2,000 0 0
Anterix Inc Com Stock 03676C100   333,747 9,930 SH   SOLE 0 9,930 0 0
Ishares Russell Top 200 Etf ETF 464289446   762,720 6,000 SH   SOLE 0 6,000 0 0
Wabtec Corporation Stock 929740108   34,304,061 235,475 SH   SOLE 0 235,475 0 0
Eli Lilly And Company Stock 532457108   2,860,559 3,677 SH   SOLE 0 3,677 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714   1,718,913 21,858 SH   SOLE 0 21,858 0 0
Draftkings Inc Com Cl A Stock 26142V105   209,749 4,619 SH   SOLE 0 4,619 0 0
Ishares Russell 2000 Etf ETF 464287655   3,902,889 18,559 SH   SOLE 0 18,558 0 0
Micron Technology, Inc. Stock 595112103   219,629 1,863 SH   SOLE 0 1,863 0 0
Carrier Global Corporation Stock 14448C104   1,831,502 31,507 SH   SOLE 0 31,507 0 0
Sysco Corporation Stock 871829107   378,705 4,665 SH   SOLE 0 4,665 0 0
Warner Music Group Corp Stock 934550203   5,560,489 168,398 SH   SOLE 0 168,397 0 0
Ii-Vi Incorporated Stock 19247G107   651,059 10,740 SH   SOLE 0 10,740 0 0
American Electric Power Company, Inc. Stock 025537101   347,930 4,041 SH   SOLE 0 4,041 0 0
Brown-Forman Corporation Class B Stock 115637209   1,649,311 31,951 SH   SOLE 0 31,951 0 0
Bentley Sys Inc Com Cl B Stock 08265T208   328,098 6,283 SH   SOLE 0 6,283 0 0
Chemed Corporation Stock 16359R103   591,859 922 SH   SOLE 0 922 0 0
Eastern Bankshares Inc Com Stock 27627N105   148,562 10,781 SH   SOLE 0 10,781 0 0
Regeneron Pharmaceuticals, Inc. Stock 75886F107   224,260 233 SH   SOLE 0 233 0 0
Atlassian Corporation Stock 049468101   260,667 1,336 SH   SOLE 0 1,336 0 0
Xylem Inc. Stock 98419M100   400,644 3,100 SH   SOLE 0 3,100 0 0
Cambridge Bancorp Com Stock 132152109   740,013 10,857 SH   SOLE 0 10,857 0 0
Visa Inc. Class A Stock 92826C839   57,095,337 204,584 SH   SOLE 0 204,584 0 0
Hershey Company Stock 427866108   982,225 5,050 SH   SOLE 0 5,050 0 0
Zurn Elkay Water Solns Corp Com Stock 98983L108   211,296 6,313 SH   SOLE 0 6,313 0 0
Vanguard Growth Index Fund ETF 922908736   2,781,760 8,082 SH   SOLE 0 8,081 0 0
Nu Hldgs Ltd Ord Shs Cl A Stock G6683N103   126,553 10,608 SH   SOLE 0 10,608 0 0
Ads Tec Energy Plc Shs Stock G0085J117   157,200 15,000 SH   SOLE 0 15,000 0 0
American Tower Corporation REIT 03027X100   33,529,411 169,692 SH   SOLE 0 169,691 0 0
Zebra Technologies Corp Cl A Stock 989207105   217,941 723 SH   SOLE 0 723 0 0
Ishares Core S&P Total U.S. Stock Market Etf ETF 464287150   425,803 3,693 SH   SOLE 0 3,693 0 0
Meta Platforms Inc. Stock 30303M102   45,860,895 94,446 SH   SOLE 0 94,445 0 0
Asml Holding Nv Adr ADR N07059210   363,926 375 SH   SOLE 0 375 0 0
Lpl Finl Hldgs Inc Com Stock 50212V100   1,177,011 4,455 SH   SOLE 0 4,455 0 0
Palo Alto Networks, Inc. Stock 697435105   209,972 739 SH   SOLE 0 739 0 0
Epam Sys Inc Com Stock 29414B104   20,409,052 73,903 SH   SOLE 0 73,903 0 0
Haleon Plc Spon Ads ADR 405552100   106,830 12,583 SH   SOLE 0 12,583 0 0
Gentherm Incorporated Stock 37253A103   203,833 3,540 SH   SOLE 0 3,540 0 0
Mondelez Intl Inc. Class A Stock 609207105   6,172,460 88,178 SH   SOLE 0 88,178 0 0
Broadcom Limited Stock 11135F101   11,496,034 8,674 SH   SOLE 0 8,673 0 0
Canadian Pacific Railway Limited Stock 13646K108   266,362 3,021 SH   SOLE 0 3,021 0 0
Ishares Core Msci Eafe Etf ETF 46432F842   268,157 3,613 SH   SOLE 0 3,613 0 0
Accenture Plc Stock G1151C101   808,641 2,333 SH   SOLE 0 2,333 0 0
Equifax Inc. Stock 294429105   347,776 1,300 SH   SOLE 0 1,300 0 0
Nice Systems Ltd. Sponsored Adr ADR 653656108   1,042,480 4,000 SH   SOLE 0 4,000 0 0
Nvidia Corporation Stock 67066G104   1,401,766 1,551 SH   SOLE 0 1,551 0 0
Abbvie, Inc. Stock 00287Y109   494,402 2,715 SH   SOLE 0 2,715 0 0
S&P Global Inc. Stock 78409V104   36,990,572 86,945 SH   SOLE 0 86,944 0 0
Interactive Brokers Group Inc Com Cl A Stock 45841N107   213,031 1,907 SH   SOLE 0 1,907 0 0
Cabot Oil & Gas Corporation Stock 127097103   596,186 21,384 SH   SOLE 0 21,384 0 0
Lennox Intl Inc Com Stock 526107107   309,874 634 SH   SOLE 0 634 0 0
Icon Plc Shs Stock G4705A100   254,314 757 SH   SOLE 0 757 0 0
Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored Adr ADR 874039100   599,028 4,403 SH   SOLE 0 4,403 0 0
Blackstone Group L.P. Stock 09260D107   55,771,249 424,536 SH   SOLE 0 424,535 0 0
Factset Resh Sys Inc Com Stock 303075105   443,030 975 SH   SOLE 0 975 0 0
Simpson Mfg Inc Com Stock 829073105   525,466 2,561 SH   SOLE 0 2,561 0 0
Stryker Corporation Stock 863667101   548,615 1,533 SH   SOLE 0 1,533 0 0
Qualcomm Incorporated Stock 747525103   206,546 1,220 SH   SOLE 0 1,220 0 0
General Dynamics Corporation Stock 369550108   451,984 1,600 SH   SOLE 0 1,600 0 0
Resmed Inc. Stock 761152107   202,387 1,022 SH   SOLE 0 1,022 0 0
Mcdonald'S Corporation Stock 580135101   4,093,125 14,517 SH   SOLE 0 14,517 0 0
Cisco Systems, Inc. Stock 17275R102   699,888 14,023 SH   SOLE 0 14,023 0 0
Autodesk, Inc. Stock 052769106   19,932,417 76,540 SH   SOLE 0 76,539 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819   2,305,786 30,581 SH   SOLE 0 30,580 0 0
Charter Communications, Inc. Class A Stock 16119P108   26,650,044 91,698 SH   SOLE 0 91,697 0 0
Gaming And Leisure Properties, Inc. REIT 36467J108   5,113,483 110,994 SH   SOLE 0 110,993 0 0
Ambev Sa Sponsored Adr ADR 02319V103   40,722 16,420 SH   SOLE 0 16,420 0 0
Ishares Core S&P 500 Etf ETF 464287200   12,983,585 24,696 SH   SOLE 0 24,696 0 0
Mettler-Toledo International Inc. Stock 592688105   785,461 590 SH   SOLE 0 590 0 0
Siteone Landscape Supply Inc Com Stock 82982L103   755,452 4,328 SH   SOLE 0 4,328 0 0
Union Pacific Corporation Stock 907818108   842,802 3,427 SH   SOLE 0 3,427 0 0
Carmax Inc Com Stock 143130102   22,769,596 261,389 SH   SOLE 0 261,389 0 0
Charles Riv Labs Intl Inc Com Stock 159864107   285,039 1,052 SH   SOLE 0 1,052 0 0
Salesforce.Com, Inc. Stock 79466L302   41,271,750 137,034 SH   SOLE 0 137,033 0 0
Idexx Laboratories, Inc. Stock 45168D104   587,444 1,088 SH   SOLE 0 1,088 0 0
Thermo Fisher Scientific Inc. Stock 883556102   34,473,875 59,314 SH   SOLE 0 59,313 0 0
Lockheed Martin Corporation Stock 539830109   1,706,233 3,751 SH   SOLE 0 3,751 0 0
Jpmorgan Chase & Co. Stock 46625H100   3,760,740 18,776 SH   SOLE 0 18,775 0 0
Pros Holdings Inc Com Stock 74346Y103   434,979 11,973 SH   SOLE 0 11,973 0 0
Chevron Corporation Stock 166764100   1,088,721 6,902 SH   SOLE 0 6,902 0 0
Conocophillips Stock 20825C104   325,582 2,558 SH   SOLE 0 2,558 0 0
Vanguard Ftse Developed Markets Etf ETF 921943858   1,977,350 39,413 SH   SOLE 0 39,413 0 0
Danaher Corporation Stock 235851102   3,164,742 12,673 SH   SOLE 0 12,673 0 0
Wal-Mart Stores, Inc. Stock 931142103   568,667 9,451 SH   SOLE 0 9,451 0 0
Oracle Corporation Stock 68389X105   7,611,943 60,600 SH   SOLE 0 60,599 0 0
Raytheon Technologies Corporation Stock 75513E101   1,474,068 15,114 SH   SOLE 0 15,114 0 0
Vanguard Ftse Emerging Markets Etf ETF 922042858   3,079,603 73,728 SH   SOLE 0 73,727 0 0
Texas Instruments Incorporated Stock 882508104   378,558 2,173 SH   SOLE 0 2,173 0 0
Pfizer Inc. Stock 717081103   219,919 7,925 SH   SOLE 0 7,925 0 0
Morgan Stanley Stock 617446448   5,354,884 56,870 SH   SOLE 0 56,870 0 0
Caterpillar Inc. Stock 149123101   1,657,046 4,522 SH   SOLE 0 4,522 0 0
Alphabet Inc. Class C Stock 02079K107   7,668,118 50,362 SH   SOLE 0 50,362 0 0
American Express Company Stock 025816109   41,305,596 181,412 SH   SOLE 0 181,411 0 0
Amgen Inc. Stock 031162100   738,095 2,596 SH   SOLE 0 2,596 0 0
Applied Materials, Inc. Stock 038222105   7,159,893 34,718 SH   SOLE 0 34,718 0 0
Otis Worldwide Corporation Stock 68902V107   4,407,342 44,398 SH   SOLE 0 44,397 0 0
Analog Devices, Inc. Stock 032654105   520,755 2,633 SH   SOLE 0 2,632 0 0
Paycom Software, Inc. Stock 70432V102   22,145,596 111,279 SH   SOLE 0 111,278 0 0
Transdigm Group Inc Com Stock 893641100   216,762 176 SH   SOLE 0 176 0 0
Williams Companies, Inc. Stock 969457100   4,470,479 114,716 SH   SOLE 0 114,715 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844   710,312 3,890 SH   SOLE 0 3,889 0 0
Healthequity Inc Stock 42226A107   33,560,868 411,134 SH   SOLE 0 411,134 0 0
Trimble Inc. Stock 896239100   328,558 5,105 SH   SOLE 0 5,105 0 0
Badger Meter Inc Com Stock 056525108   453,553 2,803 SH   SOLE 0 2,803 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827   918,583 11,981 SH   SOLE 0 11,981 0 0
Littelfuse, Inc. Stock 537008104   273,371 1,128 SH   SOLE 0 1,128 0 0
Philip Morris International Inc. Stock 718172109   924,537 10,091 SH   SOLE 0 10,091 0 0
Bristol-Myers Squibb Company Stock 110122108   375,380 6,922 SH   SOLE 0 6,922 0 0
W R Berkley Corporation Com Stock 084423102   273,810 3,096 SH   SOLE 0 3,096 0 0
Altria Group, Inc. Stock 02209S103   538,969 12,356 SH   SOLE 0 12,356 0 0
Loews Corp Com Stock 540424108   813,668 10,393 SH   SOLE 0 10,393 0 0
Cadence Design System Inc Com Stock 127387108   246,534 792 SH   SOLE 0 792 0 0
Exxon Mobil Corporation Stock 30231G102   328,477 2,826 SH   SOLE 0 2,825 0 0
Unitedhealth Group Incorporated Stock 91324P102   41,023,272 82,926 SH   SOLE 0 82,925 0 0
Travelers Companies, Inc. Stock 89417E109   1,100,069 4,780 SH   SOLE 0 4,780 0 0
Deere & Company Stock 244199105   329,003 801 SH   SOLE 0 801 0 0
Novo Nordisk A/S Sponsored Adr Class B ADR 670100205   317,790 2,475 SH   SOLE 0 2,475 0 0
Charles Schwab Corporation Stock 808513105   49,106,293 678,826 SH   SOLE 0 678,826 0 0
Toronto-Dominion Bank Stock 891160509   483,040 8,000 SH   SOLE 0 8,000 0 0
Blackrock, Inc. Stock 09247X101   717,816 861 SH   SOLE 0 861 0 0
Apple Inc. Stock 037833100   47,457,850 276,754 SH   SOLE 0 276,754 0 0
Abbott Laboratories Stock 002824100   7,548,595 66,414 SH   SOLE 0 66,413 0 0
Walt Disney Company Stock 254687106   603,270 4,930 SH   SOLE 0 4,930 0 0
Booking Holdings Inc Stock 09857L108   31,426,579 8,663 SH   SOLE 0 8,662 0 0
Ishares Russell 1000 Etf ETF 464287622   573,528 1,991 SH   SOLE 0 1,991 0 0
Ishares Russell 1000 Value Etf ETF 464287598   4,891,218 27,308 SH   SOLE 0 27,308 0 0
Ferrari N V Com Stock N3167Y103   271,155 622 SH   SOLE 0 622 0 0