2021-11-09T09:11:30-06:00 2020-12-31 FOUNDATION SOURCE ONE HOLLOW LN STE 212 LAKE SUCCESS NY 11042 990PF 2020-01-01 061331577 The Mayer-Phillips Foundation Inc % Foundation Source MAYE 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 barbara meyer president 8008391754 2021-11-02 true barbara meyer 999009999 Jeffrey D Haskell P01345770 8008391754 2020 2022-09-23 18:48:47Z X 9729143 X 350354 860 860 179356 179356 153988 2852231 413512 1717 1717 686275 595445 35000 35000 2993 2993 21343 21343 9580 48471 4986 43485 117387 26329 81478 372500 372500 489887 26329 453978 196388 569116 109723 101477 101477 6682261 6724683 8996914 25440 25440 31934 259213 421425 598818 7076637 7273025 9729143 0 0 X 7076637 7273025 7076637 7273025 7076637 7273025 7076637 196388 7273025 7273025 Publicly-traded Securities 2852231 2448356 403875 403875 Passthrough K1 Capital Gain/(Loss) 15775 FS STOCK ESCROW P 2020-01-27 2020-12-29 6138 -6138 -6138 413512 7911 7911 7911 11479 0 11479 X 3568 3568 false false false false false false false true true CT true false false false false true Foundation Source 8008391754 501 Silverside Road Suite 123 Wilmington DE 198091377 false false false false true false false false false false false false false false false false false false false false false false Alessandra Mayer Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, VP 12.0 35000 316 0 Barbara P Mayer Foundation Source 501 Silverside Rd Wilmington DE 198091377 Pres, Dir 1.0 0 0 0 Christa A Mayer Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir 1.0 0 0 0 John A Mayer Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Sec 1.0 0 0 0 Timothy P Mayer Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Treas 1.0 0 0 0 8134341 202114 589254 8925709 0 8925709 133886 8791823 439591 439591 7911 7911 431680 431680 431680 453978 0 0 0 0 453978 0 453978 431680 256274 2018 2017 2016 453978 256274 197704 0 0 233976 0 0 Barbara P Mayer John A Mayer X 5280 HIGH SCHOOL 899 N BROADWAY DENVER CO 80203 N/A PC General & Unrestricted 50000 ACTIVATE WORK INC 1700 LINCOLN ST 17TH FL DENVER CO 80203 N/A PC General & Unrestricted 25000 BIDWELL TRAINING CENTER INC 1815 METROPOLITAN ST PITTSBURGH PA 15233 N/A PC General & Unrestricted 1500 CAPITAL SISTERS INTERNATIONAL INC 227 LAMB LN GOLDEN CO 80401 N/A PC General & Unrestricted 1000 CAREERWISE COLORADO 400 S COLORADO BLVD STE 700 DENVER CO 80246 N/A PC General & Unrestricted 50000 CHALLENGE FOUNDATION INC 4545 S UNIVERSITY BLVD ENGLEWOOD CO 80113 N/A PC General & Unrestricted 2500 COLORADO ASSOCIATION OF FUNDERS PO BOX 48149 DENVER CO 80204 N/A PC General & Unrestricted 200 COLORADO THERAPEUTIC RIDING CENTER 11968 MINERAL RD LONGMONT CO 80504 N/A PC General & Unrestricted 500 ELEVATE NEW YORK INC 1065 6TH AVE FL 17 NEW YORK NY 10018 N/A PC General & Unrestricted 1000 FII - NATIONAL 1203 PRESERVATION PARK WAY OAKLAND CA 94612 N/A PC Up Together Partner Fund 50000 MEDICINE HORSE PROGRAM 9143 VALMONT RD BOULDER CO 80301 N/A PC General & Unrestricted 3500 MEDICINE HORSE PROGRAM 9143 VALMONT RD BOULDER CO 80301 N/A PC Colorado Gives Day program 5000 MILE HIGH UNITED WAY INC 711 PARK AVE W DENVER CO 80205 N/A PC Colorado COVID-19 Relief Fund 25000 ONE WORLD CHILDRENS FUND 3108 GLENDALE BLVD 506 LOS ANGELES CA 90039 N/A PC Empowering Youth in Cambodia 1000 ONE WORLD CHILDRENS FUND 3108 GLENDALE BLVD 506 LOS ANGELES CA 90039 N/A PC Empowering Youth in Cambodia 3500 ST VRAIN VALLEY SCHOOL DISTRICT 395 S PRATT PKWY LONGMONT CO 80501 N/A PC General & Unrestricted 75000 THE CUBE CORP 3399 HOLLY ST DENVER CO 80207 N/A GOV General & Unrestricted 50000 THE GATHERING PLACE A REFUGE FOR REBUILDING LIVES 1535 HIGH ST DENVER CO 80218 N/A PC General & Unrestricted 300 THORNE ECOLOGICAL INSTITUTE PO BOX 19107 BOULDER CO 80308 N/A PC General & Unrestricted 2500 THORNE ECOLOGICAL INSTITUTE PO BOX 19107 BOULDER CO 80308 N/A PC Nature Kids Lafayette 25000 372500 14 860 14 179356 18 153988 K-1 Inc/Loss 14 1717 335921 335921 false false false false false false false false false false X X 1 Mayer John A 7 Upland Drive Greenwich CT 06831 350354 X X 1 FOUNDATION SOURCE INC. SERIES AA 350997XV9, 240240 sh. 235038 2020-01-09 1 FOUNDATION SOURCE INC SERIES BB 350998XY1, 84005 sh. 105478 2020-01-09 1 FOUNDATION SOURCE PHILANTHROPIC SERVICE 412509XX4, 1511 sh. 865 2020-01-09 JPMORGAN CHASE - 7.900% - 12/3 25440 31934 FIDELITY 500 INDEX FUND 1175652 1472511 FIDELITY INTERNATL INDEX INSTL 54353 59095 ISHARES 20+ YR TREAS BD 148314 150632 ISHARES CORE MSCI EAFE ETF 214501 236564 ISHARES CORE MSCI EMERGING MAR 159795 179296 ISHARES TRUST MSCI EAFE INDEX 478945 602868 JPMORGAN BETA BUILDERS EUROPE 321050 350426 JPMORGAN BETABUILDERS CANADA E 228957 263524 JPMORGAN BETABUILDERS DEVELOPE 84206 85888 JPMORGAN BETABUILDERS JAPAN ET 144866 176316 JPMORGAN U.S. LARGE CAP CORE P 69757 59932 JPMORGAN US I&G DOMESTIC REIT 970 1000 MFS INTERNATIONAL VALUE FUND C 12379 20070 PIMCO HIGH-YIELD INSTL 172532 189890 PRUDENTIAL HIGH YIELD FUND CLA 232094 271472 SPDR S&P 500 ETF TRUST 2055620 3645330 VANGUARD INTERMEDIATE TERM COR 75512 76838 VANGUARD MORTGAGE-BACKED SEC I 75850 75752 VANGUARD TOT INTL BOND IX ADMI 670777 699964 VANGUARD TOTAL BOND MARKET IND 348553 379546 HPS CORE SR LENDING OFFSHORE F 12500 13833 JPM US RE I&G DOMESTIC LP 189721 277151 ORBIMED ROYALTIES III PRVTE IN 110175 197878 PEG GLOBAL PRIVATE EQUITY VIII 109029 109956 Administrative Fees 42840 42840 Bank Charges 96 96 Foundation Dues & Memberships 595 595 K-1 Exp JPM US RE I&G DOMESTIC 4890 4890 State or Local Filing Fees 50 50 K-1 Inc/Loss JPM US RE I&G DOMESTIC LP 1717 1717 Investment Management Services 21343 21343 990-PF Estimated Tax for 2020 5000 990-PF Extension for 2019 4580