2026-05-13T21:50:29-04:00 2025-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2025-01-01 880874875 The S Lee Family Foundation % Foundation Source SLEE 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 Sabrina Hsu President 8008391754 2026-05-06 true Jeffrey D Haskell P01345770 8008391754 2025 2025-03-06 01:10:19Z X 7010841 X 5802351 7983 7983 123554 123554 4374 54374 4374 5938262 135911 0 12697 12697 1017 476 16547 16547 30261 13173 16547 0 0 30261 13173 16547 5908001 122738 0 108859 1067328 1067328 312810 5312282 5943513 49940 471609 6379610 7010841 0 0 X 471609 6379610 471609 6379610 471609 6379610 471609 5908001 6379610 6379610 Publicly-traded Securities 54374 50000 4374 4374 4374 1706 1706 1706 300 0 300 X 0 1406 0 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 DE 198091377 false false false false false false false false false false false false false false false false false false false false false Chanel Hsu Foundation Source 501 Silverside Rd Wilmington DE 198091377 Sec, Treas 1.0 0 0 0 Sabrina Hsu Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres, Sec, Treas 1.0 0 0 0 Susan L Tang Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres 1.0 0 0 0 3542692 636538 0 4179230 0 4179230 62688 4116542 205827 205827 1706 1706 204121 204121 204121 16547 0 0 0 0 16547 204121 2552 6346 8898 16547 16547 0 8898 8898 178676 Susan L Tang X 14 7983 14 123554 18 4374 135911 135911 false false false false false false false false false false X X 1 Tang Susan L 5104 Bellemede LN Alexandria VA 22311 5802351 X X 1 VANGUARD INDEX TR VANGUARD TOTAL STOCK VTSAX, 8032.98 sh. 1158516 2025-06-23 1 VANGUARD 500 INDEX FUND ADM VFIAX, 969.647 sh. 540656 2025-06-23 1 VANGUARD EUROPEAN STOCK INDEX FUND ADMI VEUSX, 549.673 sh. 51829 2025-06-23 1 JANUS FORTY FUND CLASS I SHS JCAPX, 1698.907 sh. 100185 2025-06-23 1 VANGUARD UTLTS ETF VPU, 770 sh. 136290 2025-06-23 1 VANGUARD HEALTH CARE FD ADMIRAL VGHAX, 2743.13 sh. 197862 2025-06-23 1 VANGUARD TOTAL INT ST IDX-AD VTIAX, 8311.012 sh. 299113 2025-06-23 1 VANGUARD EXTENDED MARKET INDEX ADMIRAL VEXAX, 652.857 sh. 93287 2025-06-23 1 JANUS VENTURE FUND CL I JVTIX, 1127.94 sh. 94927 2025-06-23 1 PROSHARES S&P 500 DIVIDEND ARISTOCRATS NOBL, 4039 sh. 404667 2025-06-23 1 VANGUARD TAX MANAGED CAPITAL APPRECIATI VTCLX, 426.127 sh. 131903 2025-06-23 1 PROSHARES S&P MIDCAP 400 DIVIDEND ARIST REGL, 2146 sh. 175013 2025-06-23 1 PROSHARES RUSSELL 2000 DIVIDEND GROWERS SMDV, 2158 sh. 140335 2025-06-23 1 INVESCO QQQ TRUST QQQ, 230 sh. 122280 2025-06-23 1 JANUS HENDERSON RESEARCH FUND CLASS I JRAIX, 1024.529 sh. 74965 2025-06-23 1 CAPITAL GROUP DIVIDEND VALUE CGDV, 7500 sh. 286987 2025-06-23 1 Capital Group International Focus Equit CGXU, 4800 sh. 126032 2025-06-23 1 CAPITAL GROUP GLOBAL GROWTH EQUITY ETF CGGO, 12875 sh. 396260 2025-06-23 1 BROOKFIELD CORP ORD SHS CL A BN, 5334 sh. 314133 2025-06-23 1 BROOKFIELD ASSET MANAGEMENT LTD BAM, 1083 sh. 58111 2025-06-23 AMCAP FUND, INC., CLASS F-2 SH 91854 119818 AMERICAN FUNDS MULTI-SECTOR IN 100020 103943 AMPLIFY CWP ENHANCED DIVIDEND 50274 62300 AMPLIFY INTERNATIONAL ENHANCED 49141 57525 BROOKFIELD ASSET MANAGEMENT LT 58111 56738 BROOKFIELD CORP ORD SHS CL A 314133 367166 CAPITAL GROUP DIVIDEND VALUE 286987 327300 CAPITAL GROUP GLOBAL GROWTH EQ 396260 446119 CAPITAL GROUP INTERNATIONAL FO 126032 141840 INVESCO QQQ TRUST 122280 141291 JANUS FORTY FUND CLASS I SHS 112021 114284 JANUS HENDERSON RESEARCH FUND 85861 102643 JANUS VENTURE FUND CL I 100265 103651 PRINCIPAL FDS, INC. MIDCAP FD 85849 101076 PROSHARES RUSSELL 2000 DIVIDEN 140335 142601 PROSHARES S&P 500 DIVIDEND ARI 404667 420339 PROSHARES S&P MIDCAP 400 DIVID 175013 180736 VANGUARD 500 INDEX FUND ADM 540656 612662 VANGUARD EUROPEAN STOCK INDEX 51829 57430 VANGUARD EXTENDED MARKET INDEX 93287 103556 VANGUARD HEALTH CARE FD ADMIRA 201585 240327 VANGUARD INDEX TR VANGUARD TOT 1158516 1310982 VANGUARD TAX MANAGED CAPITAL A 131903 149860 VANGUARD TOTAL INT ST IDX-AD 299113 336845 VANGUARD UTLTS ETF 136290 142481 Administrative Fees 16522 16522 STATE OR LOCAL FILING FEES 25 25 Investment Management Services 12697 12697 990-PF Estimated Tax for 2025 300 990-PF Excise Tax for 2024 241 Foreign Tax Paid 476 476