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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
Amazon.Com, Inc. Stock 023135106   72,009,184 372,622 SH   SOLE 0 372,621 0 0
Rollins Inc Com Stock 775711104   228,484 4,683 SH   SOLE 0 4,683 0 0
Powershares Qqq Trust ETF 46090E103   835,635 1,744 SH   SOLE 0 1,744 0 0
Technology Select Sector Spdr Fund ETF 81369Y803   1,357,154 5,999 SH   SOLE 0 5,999 0 0
Starbucks Corporation Stock 855244109   470,556 6,044 SH   SOLE 0 6,044 0 0
Hecla Mng Co Com Stock 422704106   225,040 46,400 SH   SOLE 0 46,400 0 0
Dollar General Corporation Stock 256677105   4,603,756 34,816 SH   SOLE 0 34,816 0 0
Johnson & Johnson Stock 478160104   3,974,261 27,191 SH   SOLE 0 27,191 0 0
Kirby Corporation Stock 497266106   251,074 2,097 SH   SOLE 0 2,097 0 0
Wisdomtree Floating Rate Treasury Fund ETF 97717Y527   209,742 4,169 SH   SOLE 0 4,169 0 0
Costco Wholesale Corporation Stock 22160K105   432,645 509 SH   SOLE 0 509 0 0
Cabot Corporation Stock 127055101   6,217,645 67,664 SH   SOLE 0 67,664 0 0
Ishares Msci Emerging Markets Etf ETF 464287234   1,559,859 36,625 SH   SOLE 0 36,625 0 0
Las Vegas Sands Corp. Stock 517834107   442,500 10,000 SH   SOLE 0 10,000 0 0
Watsco, Inc. Stock 942622200   255,245 551 SH   SOLE 0 551 0 0
Yum! Brands, Inc. Stock 988498101   220,678 1,666 SH   SOLE 0 1,666 0 0
Procter & Gamble Company Stock 742718109   2,289,914 13,885 SH   SOLE 0 13,885 0 0
Coca-Cola Company Stock 191216100   5,972,264 93,830 SH   SOLE 0 93,829 0 0
Marriott International, Inc. Class A Stock 571903202   4,916,510 20,335 SH   SOLE 0 20,335 0 0
Powershares DB Commodity Index Tracking Fund ETF 46138B103   1,647,007 70,900 SH   SOLE 0 70,900 0 0
Cme Group Inc. Class A Stock 12572Q105   4,913,159 24,991 SH   SOLE 0 24,990 0 0
Fortive Corp. Stock 34959J108   29,177,182 393,754 SH   SOLE 0 393,754 0 0
Netflix, Inc. Stock 64110L106   1,349,760 2,000 SH   SOLE 0 2,000 0 0
Paychex, Inc. Stock 704326107   449,105 3,788 SH   SOLE 0 3,788 0 0
Tetra Tech Inc New Com Stock 88162G103   493,410 2,413 SH   SOLE 0 2,413 0 0
Pool Corporation Com Stock 73278L105   544,281 1,771 SH   SOLE 0 1,771 0 0
Merck & Co., Inc. Stock 58933Y105   5,183,135 41,867 SH   SOLE 0 41,867 0 0
Spdr S&P 500 Etf Trust ETF 78462F103   5,495,534 10,098 SH   SOLE 0 10,098 0 0
Mastercard Incorporated Class A Stock 57636Q104   523,657 1,187 SH   SOLE 0 1,187 0 0
Nordson Corp Com Stock 655663102   232,868 1,004 SH   SOLE 0 1,004 0 0
Allstate Corporation Stock 020002101   299,522 1,876 SH   SOLE 0 1,876 0 0
Ishares Core U.S. Reit Etf ETF 464288521   574,752 10,731 SH   SOLE 0 10,731 0 0
Ishares Msci Japan Etf ETF 46434G822   516,440 7,568 SH   SOLE 0 7,568 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100   1,062,120 2,266 SH   SOLE 0 2,266 0 0
Corning Incorporated Stock 219350105   258,858 6,663 SH   SOLE 0 6,663 0 0
Verizon Communications Inc. Stock 92343V104   205,128 4,974 SH   SOLE 0 4,974 0 0
Sherwin-Williams Company Stock 824348106   19,385,687 64,959 SH   SOLE 0 64,958 0 0
Pepsico, Inc. Stock 713448108   999,486 6,060 SH   SOLE 0 6,060 0 0
Honeywell International Inc. Stock 438516106   6,578,454 30,807 SH   SOLE 0 30,806 0 0
Home Depot, Inc. Stock 437076102   15,819,916 45,956 SH   SOLE 0 45,956 0 0
Automatic Data Processing, Inc. Stock 053015103   1,924,080 8,061 SH   SOLE 0 8,061 0 0
Fair Isaac Corp Com Stock 303250104   215,856 145 SH   SOLE 0 145 0 0
Cooper Cos Inc Com New Stock 216648501   252,472 2,892 SH   SOLE 0 2,892 0 0
Icici Bank Limited Sponsored Adr ADR 45104G104   394,985 13,710 SH   SOLE 0 13,710 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103   5,629,268 28,575 SH   SOLE 0 28,574 0 0
Ishares Russell 1000 Growth Etf ETF 464287614   323,685 888 SH   SOLE 0 888 0 0
Metropolitan Bk Hldg Corp Com Stock 591774104   3,000,344 71,284 SH   SOLE 0 71,284 0 0
Steris Plc Stock G8473T100   6,673,984 30,400 SH   SOLE 0 30,399 0 0
Banco Bilbao Vizcaya Argentaria, S.A. Sponsored Adr ADR 05946K101   105,857 10,554 SH   SOLE 0 10,554 0 0
Waste Connections, Inc. Stock 94106B101   38,758,390 221,022 SH   SOLE 0 221,021 0 0
Berkshire Hathaway Inc. Class B Stock 084670702   2,614,910 6,428 SH   SOLE 0 6,428 0 0
Adobe Systems Incorporated Stock 00724F101   28,294,208 50,931 SH   SOLE 0 50,931 0 0
Alphabet Inc. Class A Stock 02079K305   68,381,032 375,411 SH   SOLE 0 375,410 0 0
O'Reilly Automotive, Inc. Stock 67103H107   825,839 782 SH   SOLE 0 782 0 0
Constellation Brands, Inc. Class A Stock 21036P108   3,852,144 14,973 SH   SOLE 0 14,972 0 0
Comcast Corporation Class A Stock 20030N101   6,428,893 164,170 SH   SOLE 0 164,169 0 0
Ase Technology Hldg Co Ltd Sponsored Ads ADR 00215W100   152,857 13,385 SH   SOLE 0 13,385 0 0
Generac Holdings Inc. Stock 368736104   423,104 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104   91,953,595 205,736 SH   SOLE 0 205,735 0 0
Ameriprise Financial, Inc. Stock 03076C106   200,779 470 SH   SOLE 0 470 0 0
Merit Med Sys Inc Com Stock 589889104   412,904 4,804 SH   SOLE 0 4,804 0 0
Berkshire Hathaway Inc. Class A Stock 084670108   3,673,446 6 SH   SOLE 0 6 0 0
Boeing Company Stock 097023105   293,036 1,610 SH   SOLE 0 1,610 0 0
Vanguard Small-Cap Index Fund ETF 922908751   324,662 1,489 SH   SOLE 0 1,489 0 0
Vanguard Mid-Cap Index Fund ETF 922908629   1,944,789 8,033 SH   SOLE 0 8,033 0 0
Nextera Energy, Inc. Stock 65339F101   44,593,457 629,762 SH   SOLE 0 629,762 0 0
Tesla Motors, Inc. Stock 88160R101   499,647 2,525 SH   SOLE 0 2,525 0 0
Linde Plc Com Stock G54950103   323,842 738 SH   SOLE 0 738 0 0
Blackrock Tax Municipal Bd Tr Shs CEF 09248X100   657,940 40,241 SH   SOLE 0 40,241 0 0
Moog Inc. Class A Stock 615394202   6,231,950 37,250 SH   SOLE 0 37,250 0 0
Arch Cap Group Ltd Ord Stock G0450A105   612,301 6,069 SH   SOLE 0 6,069 0 0
Kkr & Co. L.P. Stock 48251W104   210,480 2,000 SH   SOLE 0 2,000 0 0
Vanguard S&P 500 Index Fund ETF 922908363   396,603 793 SH   SOLE 0 793 0 0
Astrazeneca Plc Sponsored Adr ADR 046353108   277,020 3,552 SH   SOLE 0 3,552 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106   32,001,709 207,938 SH   SOLE 0 207,938 0 0
Teradyne, Inc. Stock 880770102   296,580 2,000 SH   SOLE 0 2,000 0 0
Anterix Inc Com Stock 03676C100   393,129 9,930 SH   SOLE 0 9,930 0 0
Ishares Russell Top 200 Etf ETF 464289446   803,700 6,000 SH   SOLE 0 6,000 0 0
Wabtec Corporation Stock 929740108   36,260,413 229,424 SH   SOLE 0 229,423 0 0
Eli Lilly And Company Stock 532457108   3,104,548 3,429 SH   SOLE 0 3,429 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714   1,673,667 21,858 SH   SOLE 0 21,858 0 0
Ishares Russell 2000 Etf ETF 464287655   3,782,478 18,643 SH   SOLE 0 18,643 0 0
Micron Technology, Inc. Stock 595112103   245,040 1,863 SH   SOLE 0 1,863 0 0
Carrier Global Corporation Stock 14448C104   1,965,510 31,159 SH   SOLE 0 31,159 0 0
Sysco Corporation Stock 871829107   333,034 4,665 SH   SOLE 0 4,665 0 0
Warner Music Group Corp Stock 934550203   5,164,183 168,489 SH   SOLE 0 168,488 0 0
Coherent Corp. Stock 19247G107   905,025 12,490 SH   SOLE 0 12,490 0 0
American Electric Power Company, Inc. Stock 025537101   326,744 3,724 SH   SOLE 0 3,724 0 0
Cnx Resources Corp. Stock 12653C108   15,518,709 638,630 SH   SOLE 0 638,630 0 0
Brown-Forman Corporation Class B Stock 115637209   1,379,964 31,951 SH   SOLE 0 31,951 0 0
Bentley Sys Inc Com Cl B Stock 08265T208   310,129 6,283 SH   SOLE 0 6,283 0 0
Chemed Corporation Stock 16359R103   500,259 922 SH   SOLE 0 922 0 0
Eastern Bankshares Inc Com Stock 27627N105   150,718 10,781 SH   SOLE 0 10,781 0 0
Regeneron Pharmaceuticals, Inc. Stock 75886F107   244,890 233 SH   SOLE 0 233 0 0
Atlassian Corporation Stock 049468101   236,312 1,336 SH   SOLE 0 1,336 0 0
Xylem Inc. Stock 98419M100   420,453 3,100 SH   SOLE 0 3,100 0 0
Cambridge Bancorp Com Stock 132152109   749,133 10,857 SH   SOLE 0 10,857 0 0
Visa Inc. Class A Stock 92826C839   52,738,504 200,932 SH   SOLE 0 200,931 0 0
Hershey Company Stock 427866108   928,342 5,050 SH   SOLE 0 5,050 0 0
Zurn Elkay Water Solns Corp Com Stock 98983L108   215,002 7,313 SH   SOLE 0 7,313 0 0
Vanguard Growth Index Fund ETF 922908736   2,920,270 7,808 SH   SOLE 0 7,808 0 0
Nu Hldgs Ltd Ord Shs Cl A Stock G6683N103   136,737 10,608 SH   SOLE 0 10,608 0 0
Ads Tec Energy Plc Shs Stock G0085J117   188,250 15,000 SH   SOLE 0 15,000 0 0
American Tower Corporation REIT 03027X100   32,180,905 165,557 SH   SOLE 0 165,556 0 0
Zebra Technologies Corp Cl A Stock 989207105   223,356 723 SH   SOLE 0 723 0 0
Ishares Core S&P Total U.S. Stock Market Etf ETF 464287150   438,655 3,693 SH   SOLE 0 3,693 0 0
Meta Platforms Inc. Stock 30303M102   48,794,725 96,773 SH   SOLE 0 96,772 0 0
Asml Holding Nv Adr ADR N07059210   312,955 306 SH   SOLE 0 306 0 0
Lpl Finl Hldgs Inc Com Stock 50212V100   1,244,282 4,455 SH   SOLE 0 4,455 0 0
Palo Alto Networks, Inc. Stock 697435105   348,841 1,029 SH   SOLE 0 1,029 0 0
Epam Sys Inc Com Stock 29414B104   12,820,261 68,153 SH   SOLE 0 68,153 0 0
Haleon Plc Spon Ads ADR 405552100   103,936 12,583 SH   SOLE 0 12,583 0 0
Mondelez Intl Inc. Class A Stock 609207105   6,360,833 97,201 SH   SOLE 0 97,201 0 0
Broadcom Limited Stock 11135F101   35,726,443 22,252 SH   SOLE 0 22,252 0 0
Canadian Pacific Railway Limited Stock 13646K108   203,045 2,579 SH   SOLE 0 2,579 0 0
Ishares Core Msci Eafe Etf ETF 46432F842   262,448 3,613 SH   SOLE 0 3,613 0 0
Accenture Plc Stock G1151C101   457,239 1,507 SH   SOLE 0 1,507 0 0
Equifax Inc. Stock 294429105   315,198 1,300 SH   SOLE 0 1,300 0 0
Blackrock Aaa Clo Etf ETF 092528504   432,193 8,321 SH   SOLE 0 8,321 0 0
Nice Systems Ltd. Sponsored Adr ADR 653656108   687,880 4,000 SH   SOLE 0 4,000 0 0
Nvidia Corporation Stock 67066G104   2,501,994 20,253 SH   SOLE 0 20,252 0 0
Abbvie, Inc. Stock 00287Y109   539,087 3,143 SH   SOLE 0 3,143 0 0
S&P Global Inc. Stock 78409V104   38,008,912 85,222 SH   SOLE 0 85,221 0 0
Interactive Brokers Group Inc Com Cl A Stock 45841N107   233,798 1,907 SH   SOLE 0 1,907 0 0
Cabot Oil & Gas Corporation Stock 127097103   570,311 21,384 SH   SOLE 0 21,384 0 0
Lennox Intl Inc Com Stock 526107107   339,177 634 SH   SOLE 0 634 0 0
Zoetis, Inc. Class A Stock 98978V103   322,970 1,863 SH   SOLE 0 1,863 0 0
Icon Plc Shs Stock G4705A100   228,206 728 SH   SOLE 0 728 0 0
Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored Adr ADR 874039100   1,178,953 6,783 SH   SOLE 0 6,783 0 0
INTEGER HLDGS CORP COM Stock 45826H109   262,380 2,266 SH   SOLE 0 2,266 0 0
Blackstone Group L.P. Stock 09260D107   45,814,988 370,073 SH   SOLE 0 370,072 0 0
Factset Resh Sys Inc Com Stock 303075105   398,063 975 SH   SOLE 0 975 0 0
Simpson Mfg Inc Com Stock 829073105   431,605 2,561 SH   SOLE 0 2,561 0 0
Stryker Corporation Stock 863667101   499,487 1,468 SH   SOLE 0 1,468 0 0
Qualcomm Incorporated Stock 747525103   266,901 1,340 SH   SOLE 0 1,340 0 0
General Dynamics Corporation Stock 369550108   705,040 2,430 SH   SOLE 0 2,430 0 0
Mcdonald'S Corporation Stock 580135101   3,521,634 13,819 SH   SOLE 0 13,819 0 0
Cisco Systems, Inc. Stock 17275R102   562,186 11,833 SH   SOLE 0 11,833 0 0
Autodesk, Inc. Stock 052769106   18,411,146 74,404 SH   SOLE 0 74,403 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819   2,886,882 38,548 SH   SOLE 0 38,548 0 0
Charter Communications, Inc. Class A Stock 16119P108   25,711,606 86,004 SH   SOLE 0 86,003 0 0
Gaming And Leisure Properties, Inc. REIT 36467J108   5,338,515 118,083 SH   SOLE 0 118,082 0 0
Ambev Sa Sponsored Adr ADR 02319V103   33,661 16,420 SH   SOLE 0 16,420 0 0
Ishares Core S&P 500 Etf ETF 464287200   13,455,134 24,588 SH   SOLE 0 24,587 0 0
Allegion Plc Stock G0176J109   201,209 1,703 SH   SOLE 0 1,703 0 0
Mettler-Toledo International Inc. Stock 592688105   824,578 590 SH   SOLE 0 590 0 0
Siteone Landscape Supply Inc Com Stock 82982L103   525,462 4,328 SH   SOLE 0 4,328 0 0
Union Pacific Corporation Stock 907818108   915,900 4,048 SH   SOLE 0 4,048 0 0
Carmax Inc Com Stock 143130102   23,752,332 323,866 SH   SOLE 0 323,866 0 0
Charles Riv Labs Intl Inc Com Stock 159864107   217,322 1,052 SH   SOLE 0 1,052 0 0
Salesforce.Com, Inc. Stock 79466L302   34,851,874 135,558 SH   SOLE 0 135,557 0 0
Idexx Laboratories, Inc. Stock 45168D104   510,586 1,048 SH   SOLE 0 1,048 0 0
Thermo Fisher Scientific Inc. Stock 883556102   32,297,429 58,404 SH   SOLE 0 58,404 0 0
Lockheed Martin Corporation Stock 539830109   1,752,108 3,751 SH   SOLE 0 3,751 0 0
Jpmorgan Chase & Co. Stock 46625H100   3,482,151 17,216 SH   SOLE 0 17,216 0 0
Pros Holdings Inc Com Stock 74346Y103   343,026 11,973 SH   SOLE 0 11,973 0 0
Chevron Corporation Stock 166764100   1,196,926 7,652 SH   SOLE 0 7,652 0 0
Vanguard Ftse Developed Markets Etf ETF 921943858   1,943,481 39,326 SH   SOLE 0 39,325 0 0
Danaher Corporation Stock 235851102   3,278,072 13,120 SH   SOLE 0 13,120 0 0
Tjx Companies, Inc. Stock 872540109   247,064 2,244 SH   SOLE 0 2,244 0 0
Wal-Mart Stores, Inc. Stock 931142103   650,084 9,601 SH   SOLE 0 9,601 0 0
Oracle Corporation Stock 68389X105   8,612,674 60,996 SH   SOLE 0 60,996 0 0
Raytheon Technologies Corporation Stock 75513E101   1,517,294 15,114 SH   SOLE 0 15,114 0 0
Vanguard Ftse Emerging Markets Etf ETF 922042858   3,200,254 377,760 SH   SOLE 0 377,759 0 0
Texas Instruments Incorporated Stock 882508104   374,470 1,925 SH   SOLE 0 1,925 0 0
Morgan Stanley Stock 617446448   5,495,344 56,542 SH   SOLE 0 56,542 0 0
Caterpillar Inc. Stock 149123101   1,391,692 4,178 SH   SOLE 0 4,178 0 0
Alphabet Inc. Class C Stock 02079K107   9,032,034 49,242 SH   SOLE 0 49,242 0 0
American Express Company Stock 025816109   37,934,865 163,830 SH   SOLE 0 163,830 0 0
Amgen Inc. Stock 031162100   659,582 2,111 SH   SOLE 0 2,111 0 0
Applied Materials, Inc. Stock 038222105   8,154,870 34,556 SH   SOLE 0 34,556 0 0
Otis Worldwide Corporation Stock 68902V107   4,201,850 43,651 SH   SOLE 0 43,651 0 0
Paycom Software, Inc. Stock 70432V102   3,680,058 25,727 SH   SOLE 0 25,727 0 0
Transdigm Group Inc Com Stock 893641100   222,304 174 SH   SOLE 0 174 0 0
Williams Companies, Inc. Stock 969457100   4,814,639 113,286 SH   SOLE 0 113,285 0 0
Agnico-Eagle Mines Limited Stock 008474108   388,868 5,946 SH   SOLE 0 5,946 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844   635,233 3,480 SH   SOLE 0 3,479 0 0
Healthequity Inc Stock 42226A107   38,444,424 445,991 SH   SOLE 0 445,991 0 0
Trimble Inc. Stock 896239100   285,472 5,105 SH   SOLE 0 5,105 0 0
Badger Meter Inc Com Stock 056525108   522,339 2,803 SH   SOLE 0 2,803 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827   910,199 11,867 SH   SOLE 0 11,867 0 0
Littelfuse, Inc. Stock 537008104   288,306 1,128 SH   SOLE 0 1,128 0 0
Philip Morris International Inc. Stock 718172109   1,022,521 10,091 SH   SOLE 0 10,091 0 0
W R Berkley Corporation Com Stock 084423102   243,284 3,096 SH   SOLE 0 3,096 0 0
Altria Group, Inc. Stock 02209S103   562,816 12,356 SH   SOLE 0 12,356 0 0
Loews Corp Com Stock 540424108   776,773 10,393 SH   SOLE 0 10,393 0 0
Cadence Design System Inc Com Stock 127387108   243,738 792 SH   SOLE 0 792 0 0
Exxon Mobil Corporation Stock 30231G102   317,369 2,757 SH   SOLE 0 2,756 0 0
Unitedhealth Group Incorporated Stock 91324P102   41,764,389 82,010 SH   SOLE 0 82,009 0 0
Travelers Companies, Inc. Stock 89417E109   983,759 4,838 SH   SOLE 0 4,838 0 0
Novo Nordisk A/S Sponsored Adr Class B ADR 670100205   353,282 2,475 SH   SOLE 0 2,475 0 0
Charles Schwab Corporation Stock 808513105   49,084,290 666,092 SH   SOLE 0 666,091 0 0
Toronto-Dominion Bank Stock 891160509   439,680 8,000 SH   SOLE 0 8,000 0 0
Blackrock, Inc. Stock 09247X101   745,592 947 SH   SOLE 0 947 0 0
Apple Inc. Stock 037833100   56,487,688 268,197 SH   SOLE 0 268,197 0 0
Abbott Laboratories Stock 002824100   6,456,718 62,138 SH   SOLE 0 62,137 0 0
Walt Disney Company Stock 254687106   489,528 4,930 SH   SOLE 0 4,930 0 0
Booking Holdings Inc Stock 09857L108   37,533,378 9,475 SH   SOLE 0 9,474 0 0
Ishares Russell 1000 Etf ETF 464287622   469,221 1,577 SH   SOLE 0 1,577 0 0
Ishares Russell 1000 Value Etf ETF 464287598   4,756,576 27,263 SH   SOLE 0 27,263 0 0
Ferrari N V Com Stock N3167Y103   229,504 562 SH   SOLE 0 562 0 0