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   34,975,507 416,375 SH   SOLE 0 416,375 0 0
Technology Select Sector Spdr Fund ETF 81369Y803   396,964 3,190 SH   SOLE 0 3,190 0 0
Starbucks Corporation Stock 855244109   758,881 7,650 SH   SOLE 0 7,650 0 0
Alnylam Pharmaceuticals, Inc Stock 02043Q107   609,097 2,563 SH   SOLE 0 2,563 0 0
iShares Gold Trust ETF 464285204   758,801 21,937 SH   SOLE 0 21,937 0 0
Johnson & Johnson Stock 478160104   7,992,741 45,246 SH   SOLE 0 45,246 0 0
Costco Wholesale Corporation Stock 22160K105   273,631 599 SH   SOLE 0 599 0 0
Cabot Corporation Stock 127055101   4,522,662 67,664 SH   SOLE 0 67,664 0 0
Ishares Msci Emerging Markets Etf ETF 464287234   2,988,074 78,841 SH   SOLE 0 78,841 0 0
Las Vegas Sands Corp. Stock 517834107   801,760 16,679 SH   SOLE 0 16,679 0 0
Yum! Brands, Inc. Stock 988498101   213,381 1,666 SH   SOLE 0 1,666 0 0
Boston Scientific Corporation Stock 101137107   257,493 5,565 SH   SOLE 0 5,565 0 0
Procter & Gamble Company Stock 742718109   3,224,887 21,278 SH   SOLE 0 21,277 0 0
Coca-Cola Company Stock 191216100   4,614,139 72,538 SH   SOLE 0 72,537 0 0
Powershares Db Commodity Index Tracking Fund ETF 46138B103   1,747,685 70,900 SH   SOLE 0 70,900 0 0
Cme Group Inc. Class A Stock 12572Q105   3,157,656 18,778 SH   SOLE 0 18,777 0 0
Fortive Corp. Stock 34959J108   28,086,244 437,140 SH   SOLE 0 437,139 0 0
Netflix, Inc. Stock 64110L106   589,760 2,000 SH   SOLE 0 2,000 0 0
Paychex, Inc. Stock 704326107   1,234,296 10,681 SH   SOLE 0 10,681 0 0
Pool Corporation Com Stock 73278L105   535,426 1,771 SH   SOLE 0 1,771 0 0
Merck & Co., Inc. Stock 58933Y105   1,134,575 10,226 SH   SOLE 0 10,226 0 0
Spdr S&P 500 Etf Trust ETF 78462F103   5,779,080 15,111 SH   SOLE 0 15,111 0 0
First Republic Bank Stock 33616C100   12,335,875 101,205 SH   SOLE 0 101,204 0 0
Nordson Corp Com Stock 655663102   246,516 1,037 SH   SOLE 0 1,037 0 0
Allstate Corporation Stock 020002101   203,400 1,500 SH   SOLE 0 1,500 0 0
Vertex Pharmaceuticals Incorporated Stock 92532F100   688,163 2,383 SH   SOLE 0 2,383 0 0
Verizon Communications Inc. Stock 92343V104   691,943 17,562 SH   SOLE 0 17,562 0 0
Sherwin-Williams Company Stock 824348106   31,465,060 132,579 SH   SOLE 0 132,579 0 0
Pepsico, Inc. Stock 713448108   1,064,641 5,893 SH   SOLE 0 5,893 0 0
Te Connectivity Ltd. Stock H84989104   343,137 2,989 SH   SOLE 0 2,989 0 0
Honeywell International Inc. Stock 438516106   5,637,733 26,308 SH   SOLE 0 26,307 0 0
Xcel Energy Inc. Stock 98389B100   262,211 3,740 SH   SOLE 0 3,740 0 0
Home Depot, Inc. Stock 437076102   32,216,687 101,997 SH   SOLE 0 101,996 0 0
Automatic Data Processing, Inc. Stock 053015103   2,585,898 10,826 SH   SOLE 0 10,826 0 0
Icici Bank Limited Sponsored Adr ADR 45104G104   224,329 10,248 SH   SOLE 0 10,248 0 0
Becton, Dickinson And Company Stock 075887109   1,258,276 4,948 SH   SOLE 0 4,948 0 0
Broadridge Financial Solutions, Inc. Stock 11133T103   3,487,814 26,003 SH   SOLE 0 26,003 0 0
Ishares Russell 1000 Growth Etf ETF 464287614   1,919,278 8,959 SH   SOLE 0 8,958 0 0
Steris Plc Stock G8473T100   6,410,366 34,709 SH   SOLE 0 34,708 0 0
Centene Corporation Stock 15135B101   876,359 10,686 SH   SOLE 0 10,686 0 0
United Therapeutics Corp Del Com Stock 91307C102   695,225 2,500 SH   SOLE 0 2,500 0 0
Waste Connections, Inc. Stock 94106B101   34,168,340 257,758 SH   SOLE 0 257,757 0 0
Berkshire Hathaway Inc. Class B Stock 084670702   1,694,008 5,484 SH   SOLE 0 5,484 0 0
Adobe Systems Incorporated Stock 00724F101   22,197,519 65,960 SH   SOLE 0 65,960 0 0
Alphabet Inc. Class A Stock 02079K305   44,366,544 502,851 SH   SOLE 0 502,851 0 0
Fiserv Inc Com Stock 337738108   690,308 6,830 SH   SOLE 0 6,830 0 0
O'Reilly Automotive, Inc. Stock 67103H107   27,588,809 32,687 SH   SOLE 0 32,687 0 0
Constellation Brands, Inc. Class A Stock 21036P108   211,118 911 SH   SOLE 0 910 0 0
Comcast Corporation Class A Stock 20030N101   6,358,185 181,818 SH   SOLE 0 181,818 0 0
Generac Holdings Inc. Stock 368736104   322,112 3,200 SH   SOLE 0 3,200 0 0
Microsoft Corporation Stock 594918104   54,408,146 226,871 SH   SOLE 0 226,870 0 0
Schlumberger Nv Stock 806857108   448,583 8,391 SH   SOLE 0 8,391 0 0
Cvs Health Corporation Stock 126650100   711,972 7,640 SH   SOLE 0 7,640 0 0
Ameriprise Financial, Inc. Stock 03076C106   251,276 807 SH   SOLE 0 807 0 0
Cowen Inc Class A Stock 223622606   1,902,962 49,274 SH   SOLE 0 49,274 0 0
Berkshire Hathaway Inc. Class A Stock 084670108   3,749,688 8 SH   SOLE 0 8 0 0
Boeing Company Stock 097023105   2,690,481 14,124 SH   SOLE 0 14,124 0 0
Vanguard Mid-Cap Index Fund ETF 922908629   2,218,676 10,886 SH   SOLE 0 10,886 0 0
Nextera Energy, Inc. Stock 65339F101   340,754 4,076 SH   SOLE 0 4,076 0 0
Align Technology Inc Com Stock 016255101   13,692,683 64,925 SH   SOLE 0 64,925 0 0
Tesla Motors, Inc. Stock 88160R101   272,228 2,210 SH   SOLE 0 2,210 0 0
Moog Inc. Class A Stock 615394202   767,900 8,750 SH   SOLE 0 8,750 0 0
Reinsurance Group Amer Inc Com New Stock 759351604   256,046 1,802 SH   SOLE 0 1,802 0 0
Arch Cap Group Ltd Ord Stock G0450A105   283,766 4,520 SH   SOLE 0 4,520 0 0
Vanguard S&P 500 Index Fund ETF 922908363   294,423 838 SH   SOLE 0 838 0 0
Astrazeneca Plc Sponsored Adr ADR 046353108   228,418 3,369 SH   SOLE 0 3,369 0 0
Oncternal Therapeutics Inc Com Stock 68236P107   30,211 30,211 SH   SOLE 0 30,211 0 0
Spdr S&P Midcap 400 Etf Trust ETF 78467Y107   905,063 2,044 SH   SOLE 0 2,044 0 0
Booz Allen Hamilton Holding Corporation Class A Stock 099502106   38,136,930 364,877 SH   SOLE 0 364,876 0 0
Anterix Inc Com Stock 03676C100   319,448 9,930 SH   SOLE 0 9,930 0 0
Ishares Russell Top 200 Etf ETF 464289446   539,820 6,000 SH   SOLE 0 6,000 0 0
Wabtec Corporation Stock 929740108   28,274,237 283,281 SH   SOLE 0 283,280 0 0
Eli Lilly And Company Stock 532457108   1,235,076 3,376 SH   SOLE 0 3,376 0 0
Vanguard Russell 1000 Value Index Fund ETF 92206C714   1,455,306 21,858 SH   SOLE 0 21,858 0 0
Ishares Russell 2000 Etf ETF 464287655   1,954,576 11,210 SH   SOLE 0 11,210 0 0
Carrier Global Corporation Stock 14448C104   1,309,853 31,754 SH   SOLE 0 31,754 0 0
Sysco Corporation Stock 871829107   532,474 6,965 SH   SOLE 0 6,965 0 0
Warner Music Group Corp Stock 934550203   6,483,859 185,147 SH   SOLE 0 185,147 0 0
Ii-Vi Incorporated Stock 19247G107   376,974 10,740 SH   SOLE 0 10,740 0 0
American Electric Power Company, Inc. Stock 025537101   439,138 4,625 SH   SOLE 0 4,624 0 0
Brown-Forman Corporation Class B Stock 115637209   3,431,846 52,251 SH   SOLE 0 52,251 0 0
Eastern Bankshares Inc Com Stock 27627N105   380,725 22,071 SH   SOLE 0 22,071 0 0
Xylem Inc. Stock 98419M100   342,767 3,100 SH   SOLE 0 3,100 0 0
Marriott Vacations Worldwide Corp. Stock 57164Y107   2,584,449 19,202 SH   SOLE 0 19,202 0 0
Cambridge Bancorp Com Stock 132152109   1,005,607 12,107 SH   SOLE 0 12,107 0 0
Neogen Corporation Stock 640491106   182,760 12,000 SH   SOLE 0 12,000 0 0
Visa Inc. Class A Stock 92826C839   50,730,557 244,179 SH   SOLE 0 244,178 0 0
Hershey Company Stock 427866108   1,291,003 5,575 SH   SOLE 0 5,575 0 0
Vanguard Growth Index Fund ETF 922908736   2,087,767 9,797 SH   SOLE 0 9,796 0 0
Ads Tec Energy Plc Shs Stock G0085J117   46,800 15,000 SH   SOLE 0 15,000 0 0
American Tower Corporation REIT 03027X100   35,751,075 168,749 SH   SOLE 0 168,748 0 0
Ishares Core S&P Total U.S. Stock Market Etf ETF 464287150   387,790 4,573 SH   SOLE 0 4,573 0 0
Meta Platforms Inc. Stock 30303M102   15,282,699 126,996 SH   SOLE 0 126,996 0 0
Lpl Finl Hldgs Inc Com Stock 50212V100   1,198,663 5,545 SH   SOLE 0 5,545 0 0
Mondelez Intl Inc. Class A Stock 609207105   5,655,793 84,858 SH   SOLE 0 84,858 0 0
Broadcom Limited Stock 11135F101   7,916,601 14,159 SH   SOLE 0 14,158 0 0
Unifirst Corporation Stock 904708104   209,780 1,087 SH   SOLE 0 1,087 0 0
Vanguard Short-Term Inflation-Protected Securities Etf ETF 922020805   373,680 8,000 SH   SOLE 0 8,000 0 0
Canadian Pacific Railway Limited Stock 13645T100   200,573 2,689 SH   SOLE 0 2,689 0 0
Martin Marietta Materials, Inc. Stock 573284106   649,578 1,922 SH   SOLE 0 1,922 0 0
Ishares Core Msci Eafe Etf ETF 46432F842   260,059 4,219 SH   SOLE 0 4,219 0 0
Accenture Plc Stock G1151C101   230,402 863 SH   SOLE 0 863 0 0
Equifax Inc. Stock 294429105   252,668 1,300 SH   SOLE 0 1,300 0 0
Nice Systems Ltd. Sponsored Adr ADR 653656108   1,384,560 7,200 SH   SOLE 0 7,200 0 0
Abbvie, Inc. Stock 00287Y109   419,216 2,594 SH   SOLE 0 2,594 0 0
S&P Global Inc. Stock 78409V104   32,824,451 98,001 SH   SOLE 0 98,000 0 0
Vanguard Ftse All-World Ex-Us Index Fund ETF 922042775   1,331,267 26,551 SH   SOLE 0 26,551 0 0
Cabot Oil & Gas Corporation Stock 127097103   525,405 21,384 SH   SOLE 0 21,384 0 0
Casella Waste Sys Inc Cl A Stock 147448104   302,568 3,815 SH   SOLE 0 3,815 0 0
Blackstone Group L.P. Stock 09260D107   31,642,226 426,503 SH   SOLE 0 426,502 0 0
Church & Dwight Co., Inc. Stock 171340102   810,534 10,055 SH   SOLE 0 10,055 0 0
Stryker Corporation Stock 863667101   404,631 1,655 SH   SOLE 0 1,655 0 0
General Dynamics Corporation Stock 369550108   396,976 1,600 SH   SOLE 0 1,600 0 0
Mcdonald'S Corporation Stock 580135101   426,720 1,619 SH   SOLE 0 1,619 0 0
Ametek, Inc. Stock 031100100   466,665 3,340 SH   SOLE 0 3,340 0 0
Cisco Systems, Inc. Stock 17275R102   1,166,757 24,491 SH   SOLE 0 24,491 0 0
Autodesk, Inc. Stock 052769106   20,200,086 108,097 SH   SOLE 0 108,097 0 0
At&T Inc. Stock 00206R102   229,886 12,487 SH   SOLE 0 12,487 0 0
Vanguard Intermediate Term Bond Index Fund ETF 921937819   2,557,999 34,419 SH   SOLE 0 34,418 0 0
Charter Communications, Inc. Class A Stock 16119P108   21,962,829 64,768 SH   SOLE 0 64,768 0 0
Gaming And Leisure Properties, Inc. REIT 36467J108   4,543,839 87,231 SH   SOLE 0 87,230 0 0
Ishares Core S&P 500 Etf ETF 464287200   7,316,581 19,043 SH   SOLE 0 19,043 0 0
Mettler-Toledo International Inc. Stock 592688105   949,661 657 SH   SOLE 0 657 0 0
Siteone Landscape Supply Inc Com Stock 82982L103   557,270 4,750 SH   SOLE 0 4,750 0 0
Charles Riv Labs Intl Inc Com Stock 159864107   209,620 962 SH   SOLE 0 962 0 0
Salesforce.Com, Inc. Stock 79466L302   20,893,532 157,580 SH   SOLE 0 157,580 0 0
Idexx Laboratories, Inc. Stock 45168D104   452,020 1,108 SH   SOLE 0 1,108 0 0
Thermo Fisher Scientific Inc. Stock 883556102   28,054,914 50,945 SH   SOLE 0 50,945 0 0
Lockheed Martin Corporation Stock 539830109   3,041,922 6,253 SH   SOLE 0 6,252 0 0
Jpmorgan Chase & Co. Stock 46625H100   4,559,004 33,997 SH   SOLE 0 33,997 0 0
Chevron Corporation Stock 166764100   1,175,168 6,547 SH   SOLE 0 6,547 0 0
Vanguard Ftse Developed Markets Etf ETF 921943858   2,219,416 52,881 SH   SOLE 0 52,881 0 0
Danaher Corporation Stock 235851102   2,696,710 10,160 SH   SOLE 0 10,160 0 0
Wal-Mart Stores, Inc. Stock 931142103   719,632 5,075 SH   SOLE 0 5,075 0 0
Oracle Corporation Stock 68389X105   325,325 3,980 SH   SOLE 0 3,980 0 0
Raytheon Technologies Corporation Stock 75513E101   1,776,898 17,607 SH   SOLE 0 17,607 0 0
Vanguard Ftse Emerging Markets Etf ETF 922042858   2,864,913 73,497 SH   SOLE 0 73,497 0 0
Texas Instruments Incorporated Stock 882508104   570,835 3,455 SH   SOLE 0 3,455 0 0
Pfizer Inc. Stock 717081103   694,574 13,555 SH   SOLE 0 13,555 0 0
Morgan Stanley Stock 617446448   4,681,703 55,066 SH   SOLE 0 55,065 0 0
Caterpillar Inc. Stock 149123101   1,391,685 5,809 SH   SOLE 0 5,809 0 0
Alphabet Inc. Class C Stock 02079K107   6,836,824 77,052 SH   SOLE 0 77,052 0 0
American Express Company Stock 025816109   29,472,480 199,475 SH   SOLE 0 199,475 0 0
Amgen Inc. Stock 031162100   308,339 1,174 SH   SOLE 0 1,174 0 0
Applied Materials, Inc. Stock 038222105   3,249,243 33,367 SH   SOLE 0 33,366 0 0
Otis Worldwide Corporation Stock 68902V107   3,623,557 46,272 SH   SOLE 0 46,271 0 0
Analog Devices, Inc. Stock 032654105   374,828 2,285 SH   SOLE 0 2,285 0 0
Williams Companies, Inc. Stock 969457100   4,928,159 149,792 SH   SOLE 0 149,792 0 0
Vanguard Dividend Appreciation Index Fund ETF 921908844   1,519,411 10,006 SH   SOLE 0 10,006 0 0
Healthequity Inc Stock 42226A107   24,637,077 399,693 SH   SOLE 0 399,693 0 0
Ipg Photonics Corporation Stock 44980X109   378,680 4,000 SH   SOLE 0 4,000 0 0
Vanguard Short-Term Bond Index Fund ETF 921937827   438,807 5,829 SH   SOLE 0 5,829 0 0
Philip Morris International Inc. Stock 718172109   1,836,350 18,144 SH   SOLE 0 18,143 0 0
Pnc Financial Services Group, Inc. Stock 693475105   1,146,171 7,257 SH   SOLE 0 7,257 0 0
Bristol-Myers Squibb Company Stock 110122108   3,044,034 42,308 SH   SOLE 0 42,307 0 0
W R Berkley Corporation Com Stock 084423102   304,431 4,195 SH   SOLE 0 4,195 0 0
Altria Group, Inc. Stock 02209S103   605,535 13,247 SH   SOLE 0 13,247 0 0
Loews Corp Com Stock 540424108   781,214 13,393 SH   SOLE 0 13,393 0 0
American Water Works Company, Inc. Stock 030420103   32,982,019 216,389 SH   SOLE 0 216,389 0 0
Agilent Technologies, Inc. Stock 00846U101   328,482 2,195 SH   SOLE 0 2,195 0 0
Exxon Mobil Corporation Stock 30231G102   2,516,368 22,814 SH   SOLE 0 22,813 0 0
Unitedhealth Group Incorporated Stock 91324P102   32,883,055 62,022 SH   SOLE 0 62,022 0 0
Travelers Companies, Inc. Stock 89417E109   1,111,816 5,930 SH   SOLE 0 5,930 0 0
Deere & Company Stock 244199105   737,896 1,721 SH   SOLE 0 1,721 0 0
Paypal Holdings Inc. Stock 70450Y103   20,578,093 288,937 SH   SOLE 0 288,936 0 0
Charles Schwab Corporation Stock 808513105   49,383,225 593,121 SH   SOLE 0 593,120 0 0
Toronto-Dominion Bank Stock 891160509   537,508 8,300 SH   SOLE 0 8,300 0 0
Blackrock, Inc. Stock 09247X101   414,549 585 SH   SOLE 0 585 0 0
Ishares Msci Eafe Etf ETF 464287465   1,003,833 15,293 SH   SOLE 0 15,293 0 0
Apple Inc. Stock 037833100   45,698,347 351,715 SH   SOLE 0 351,715 0 0
Abbott Laboratories Stock 002824100   7,828,434 71,304 SH   SOLE 0 71,303 0 0
Walt Disney Company Stock 254687106   695,120 8,001 SH   SOLE 0 8,000 0 0
Booking Holdings Inc Stock 09857L108   27,224,418 13,509 SH   SOLE 0 13,508 0 0
Ishares Russell 1000 Value Etf ETF 464287598   3,917,271 25,831 SH   SOLE 0 25,831 0 0