2025-04-03T07:44:11-05:00 2024-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2024-01-01 932210335 Tassopoulos Family Foundation % Foundation Source TASS 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 Timothy Tassopoulos President 8008391754 2025-03-26 true true Jeffrey D Haskell P01345770 8008391754 2024 2025-03-06 01:10:19Z X 5740933 X 610881 3419 3419 208776 208776 34365 1059668 375879 857441 588074 0 34614 34614 23400 4971 4971 62985 34614 4971 0 0 62985 34614 4971 794456 553460 57747 249466 249466 4439038 5041775 5491467 4496785 5291241 5740933 0 0 X 4496785 5291241 4496785 5291241 4496785 5291241 4496785 794456 5291241 5291241 Publicly-traded Securities 1059668 683789 375879 375879 375879 7693 7693 7693 1283 0 1283 X 0 6410 false false false false false false false true true DE true false false false false true Foundation Source 8008391754 501 Silverside Road Suite 123 Wilmington CT 198091377 false false false false false false false false false false false false false false false false false false false false false Maria C Tassopoulos Foundation Source 501 Silverside Rd Wilmington DE 198091377 Sec, Treas 1.0 0 0 0 Timothy P Tassopoulos Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres 1.0 0 0 0 4976672 112585 0 5089257 0 5089257 76339 5012918 250646 250646 7693 7693 242953 242953 242953 4971 0 0 0 0 4971 242953 2461 2461 4971 4971 0 2461 2461 235521 Maria C Tassopoulos Timothy P Tassopoulos X 14 3419 14 208776 18 34365 246560 246560 false false false false false false false false false false X X 1 Tassopoulos Timothy P 1611 Nancy Creek Ridge Atlanta GA 30327 610881 X 1 JP MORGAN CHASE JPM, 1200 sh. 287874 2024-11-07 1 MONDELEZ INTERNATIONAL INC MDLZ, 400 sh. 26434 2024-11-07 1 WHEATON PRECIOUS METALS CORP WPM, 3000 sh. 191355 2024-11-07 1 VANGUARD SM-CAP ETF VB, 200 sh. 50334 2024-11-07 1 VANGUARD MID-CAP ETF VO, 200 sh. 54884 2024-11-07 AMERICAN FUNDS NEW PERSPECTIVE 463904 506076 BLACKROCK STRAT INC OPP PORTFO 411493 422189 DFA U.S. SMALL CAP PORTFOLIO 197217 238402 DIMENSIONAL U S SMALL CAP ETF 2667 2473 DODGE & COX FDS GLOBAL STK 520852 495162 DODGE & COX GLOBAL BOND FUND 213444 206268 DODGE & COX INCOME FUND 412085 415479 MATTHEWS ASIA DIVIDEND FUND IN 118412 126409 MFS RESEARCH BOND FD CL I 411042 416746 MFS RESEARCH INTERNATIONAL FUN 183181 190126 NEW WORLD FUND CLASS F3 121815 126831 PIMCO INCOME FUND 414567 420692 SPROTT PHYSICAL GOLD AND SILVE 222310 282150 VANGUARD LG-CAP ETF 742185 943681 VANGUARD MID-CAP ETF 396618 485735 VANGUARD SHORT TERM INFLATION 209983 213048 Administrative Fees 4946 4946 State or Local Filing Fees 25 25 Investment Management Services 34614 34614 990-PF Estimated Tax for 2024 1200 990-PF Extension for 2023 22200