0001168889-20-000008.txt : 20201027 0001168889-20-000008.hdr.sgml : 20201027 20201026181219 ACCESSION NUMBER: 0001168889-20-000008 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20200930 FILED AS OF DATE: 20201027 DATE AS OF CHANGE: 20201026 EFFECTIVENESS DATE: 20201027 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CARDEROCK CAPITAL MANAGEMENT INC CENTRAL INDEX KEY: 0001168889 IRS NUMBER: 521487670 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-10166 FILM NUMBER: 201261639 BUSINESS ADDRESS: STREET 1: 2 WISCONSIN CIRCLE STREET 2: SUITE 600 CITY: CHEVY CHASE STATE: MD ZIP: 20815-7003 BUSINESS PHONE: 3019515288 MAIL ADDRESS: STREET 1: 2 WISCONSIN CIRCLE STREET 2: SUITE 600 CITY: CHEVY CHASE STATE: MD ZIP: 20815-7003 FORMER COMPANY: FORMER CONFORMED NAME: MERSEREAU CO DATE OF NAME CHANGE: 20020311 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001168889 XXXXXXXX 09-30-2020 09-30-2020 CARDEROCK CAPITAL MANAGEMENT INC

2 WISCONSIN CIRCLE SUITE 600 CHEVY CHASE MD 20815-7003

13F HOLDINGS REPORT 028-10166 N James W Mersereau 3019515288 x102 James W. Mersereau Chevy Chase MD 10-26-2020 0 69 296033 false INFORMATION TABLE 2 Carderock13F-table-3Q2020.xml HOLDINGS TABLE Abbott Laboratories COM 002824100 6447 59237 SH SOLE 0 0 59237 Accenture PLC Cl A COM G1151C101 9613 42538 SH SOLE 0 0 42538 Adobe Inc COM 00724F101 9512 19395 SH SOLE 0 0 19395 Air Products & Chemicals COM 009158106 5309 17823 SH SOLE 0 0 17823 Alphabet Inc COM 02079K305 6400 4367 SH SOLE 0 0 4367 Amazon.com COM 023135106 217 69 SH SOLE 0 0 69 American Tower Corp COM 03027X100 4912 20322 SH SOLE 0 0 20322 Ametek COM 031100100 4110 41344 SH SOLE 0 0 41344 Amgen COM 031162100 6543 25742 SH SOLE 0 0 25742 Amphenol Corp COM 032095101 6464 59700 SH SOLE 0 0 59700 Ansys COM 03662Q105 8017 24499 SH SOLE 0 0 24499 Aon PLC COM G0403H108 5285 25617 SH SOLE 0 0 25617 Apple Computer COM 037833100 17117 147801 SH SOLE 0 0 147801 Aptargroup COM 038336103 2090 18464 SH SOLE 0 0 18464 Automatic Data Proc COM 053015103 3291 23594 SH SOLE 0 0 23594 Autozone COM 053332102 899 763 SH SOLE 0 0 763 Becton Dickinson & Co COM 075887109 4759 20455 SH SOLE 0 0 20455 Berkshire Hathaway Cl B COM 084670702 245 1150 SH SOLE 0 0 1150 Bristol-Myers Squibb COM 110122108 270 4475 SH SOLE 0 0 4475 Canadian National Railway Corp COM 136375102 1293 12149 SH SOLE 0 0 12149 Chevron Texaco Corp COM 166764100 269 3731 SH SOLE 0 0 3731 Church & Dwight COM 171340102 6390 68186 SH SOLE 0 0 68186 Cintas Corp COM 172908105 3080 9254 SH SOLE 0 0 9254 Clorox Co COM 189054109 384 1825 SH SOLE 0 0 1825 Comcast Corp Cl A COM 20030N101 2010 43448 SH SOLE 0 0 43448 Costar Group Com COM 22160N109 686 808 SH SOLE 0 0 808 Costco Wholesale COM 22160K105 5772 16260 SH SOLE 0 0 16260 Danaher Corp COM 235851102 7650 35526 SH SOLE 0 0 35526 Ecolab COM 278865100 5236 26200 SH SOLE 0 0 26200 Edward Lifesciences COM 28176E108 3613 45270 SH SOLE 0 0 45270 Enphase Energy Inc COM 29355A107 561 6791 SH SOLE 0 0 6791 Extra Space Storage COM 30225T102 218 2040 SH SOLE 0 0 2040 Fair Isaac Corp COM 303250104 2905 6829 SH SOLE 0 0 6829 Fiserv COM 337738108 5528 53647 SH SOLE 0 0 53647 Home Depot COM 437076102 6108 21993 SH SOLE 0 0 21993 Honeywell COM 438516106 4417 26835 SH SOLE 0 0 26835 Idexx Labs COM 45168D104 7626 19400 SH SOLE 0 0 19400 Illinois Tool Works COM 452308109 4808 24883 SH SOLE 0 0 24883 Intel Corp COM 458140100 3827 73917 SH SOLE 0 0 73917 Intuit COM 461202103 7055 21626 SH SOLE 0 0 21626 J P Morgan Chase COM 46625H100 2649 27514 SH SOLE 0 0 27514 Johnson & Johnson COM 478160104 484 3250 SH SOLE 0 0 3250 L3 Harris COM 502431109 3159 18601 SH SOLE 0 0 18601 Laboratory Corp COM 50540R409 4894 25996 SH SOLE 0 0 25996 Lauder Estee Cos Inc COM 518439104 4275 19588 SH SOLE 0 0 19588 Mastercard Worldwide COM 57636Q104 8689 25695 SH SOLE 0 0 25695 McCormick & Co COM 579780206 5973 30771 SH SOLE 0 0 30771 Merck & Co New COM 58933Y105 355 4275 SH SOLE 0 0 4275 Mettler Toledo Intl COM 592688105 5126 5308 SH SOLE 0 0 5308 Microsoft Corp COM 594918104 9633 45798 SH SOLE 0 0 45798 Moody's Corp COM 615369105 3818 13174 SH SOLE 0 0 13174 NextEra Energy COM 65339F101 2693 9703 SH SOLE 0 0 9703 Nike Cl B COM 654106103 7296 58119 SH SOLE 0 0 58119 O'Reilly Automotive New COM 67103H107 3354 7274 SH SOLE 0 0 7274 Paychex COM 704326107 467 5859 SH SOLE 0 0 5859 Roper Technologies Inc COM 776696106 4974 12590 SH SOLE 0 0 12590 S&P Global Inc COM 78409V104 2042 5662 SH SOLE 0 0 5662 Sherwin-Williams Co COM 824348106 4371 6274 SH SOLE 0 0 6274 Solaredge Tech COM 83417M104 1716 7199 SH SOLE 0 0 7199 Starbucks Corp COM 855244109 3412 39713 SH SOLE 0 0 39713 TRPrice Assoc COM 74144T108 1016 7925 SH SOLE 0 0 7925 Taiwan Semiconductor COM 874039100 10928 134803 SH SOLE 0 0 134803 Thermo Fisher Scientific COM 883556102 10480 23737 SH SOLE 0 0 23737 Toro Co COM 891092108 5143 61268 SH SOLE 0 0 61268 Union Pacific Corp COM 907818108 419 2130 SH SOLE 0 0 2130 UnitedHealth Grp COM 91324P102 3944 12650 SH SOLE 0 0 12650 Verizon Communication COM 92343v104 1860 31267 SH SOLE 0 0 31267 Waste Connections Inc COM 94106B101 1681 16190 SH SOLE 0 0 16190 SEI Mkt Gwth Strat ISHARES 784111494 245 10123 SH SOLE 0 0 10123