2025-09-25T07:28:45-05:00 2024-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2024-01-01 844445567 The Mathews Legacy Foundation % Foundation Source MATH 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 Karen Matthews President 8008391754 2025-09-04 true true Jeffrey D Haskell P01345770 8008391754 2024 2025-03-06 01:10:19Z X 717919 X 80680 49 49 3963 3963 20908 166834 30916 105600 34928 0 2087 2087 172 10 11185 11185 13444 2097 11185 15000 15000 28444 2097 26185 77156 32831 0 10389 16665 16665 491674 562554 701254 502063 579219 717919 0 0 X 502063 579219 502063 579219 502063 579219 502063 77156 579219 579219 Publicly-traded Securities 166834 135918 30916 30916 30916 456 456 456 0 500 500 44 44 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 Connor Mathew Golembeski Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir 1.0 0 0 0 Megan Elizabeth Golembeski Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir 1.0 0 0 0 Karin L Mathews Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres, Sec, Treas 1.0 0 0 0 594225 13536 0 607761 0 607761 9116 598645 29932 29932 456 456 29476 29476 29476 26185 0 0 0 0 26185 29476 10582 35006 2163 47751 26185 26185 0 3291 3291 44460 0 44460 7291 35006 2163 NONE X TREEHOUSE 2100 24TH AVE S STE 200 SEATTLE WA 98144 N/A PC General & Unrestricted 15000 15000 14 49 14 3963 18 20908 24920 24920 false false false false false false false false false false X X 1 2011 Karin L Mathews Irrevocable Tr 304 S Jones Blvd 811 Las Vegas NV 89107 80680 X 1 APPLE INC AAPL, 320 sh. 80680 2024-12-30 ABBOTT LABS 6177 5203 ADOBE SYSTEMS, INC 10059 8004 ADVANCED MICRO DEVICES INC 8290 7731 ALPHABET INC CL A 20372 28584 AMAZON COM 37374 48046 AMERICAN TOWER REIT INC 8485 6236 AMERIPRISE FINANCIAL INC 3460 5857 APPLE INC 112650 125461 ASML HOLDING NV NY REG SHS 9348 8317 BOSTON SCIENTIFIC 3825 8217 BROADCOM INC 16307 31067 CHIPOTLE MEX GRILL 7478 8864 ELI LILLY & CO 13545 17756 INTUIT 7434 8171 INTUITIVE SURGICAL 5592 9395 MASTERCARD INC 12226 14744 META PLATFORMS INC 19491 34545 MICROSOFT CORP 58257 69969 MORGAN STANLEY FINANCE T-GEARS 60188 82867 NVIDIA CORP 40531 48479 O'REILLY AUTOMOTIVE INC 4777 7115 ORACLE CORP 10646 10498 PALO ALTO NETWORKS INC 6938 8006 PARKER HANNIFIN CP 5402 7632 PROGRESSIVE CORP OHIO 8679 9584 S&P GLOBAL INC COM 4250 4980 SALESFORCE.COM 7324 11033 SHERWIN-WILLIAMS CO 7413 8158 THERMO FISHER SCIENTIFIC INC 6566 5723 TJX COMPANIES INC 7179 12323 TRANSDIGM GRP INC 5720 6336 UNION PACIFIC 6503 5929 UNITEDHEALTH GROUP INC 7922 8094 VISA INC 12146 18330 Administrative Fees 9210 9210 Foundation Dues & Memberships 1000 1000 State or Local Filing Fees 25 25 TRAINING & PROF DEVELOPMENT 950 950 Investment Management Services 2087 2087 990-PF Excise Tax for 2023 162 Foreign Tax Paid 10 10