2025-11-04T14:27:41-06:00 2024-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2024-01-01 200495820 The Pfeil Foundation Inc % Foundation Source PFEI 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 David P Pfeil President 8008391754 2025-10-31 true true Jeffrey D Haskell P01345770 8008391754 2024 2025-03-06 01:10:19Z X 5491182 X 44013 4092 4092 134079 134079 96678 3395602 96678 278862 234849 0 36170 36170 2743 1743 43295 282 43013 82208 38195 43013 300000 300000 382208 38195 343013 -103346 196654 0 95731 107196 107196 1413620 374956 351083 3194637 4118490 5032903 4703988 4600642 5491182 0 0 X 4703988 4600642 4703988 4600642 4703988 4600642 4703988 -103346 4600642 4600642 Publicly-traded Securities 3395602 3298924 96678 96678 96678 2733 2733 2733 2091 0 2091 X 0 642 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 David Pfeil Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres, Sec 1.0 0 0 0 Kelly Sepcic Pfeil Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, VP 1.0 0 0 0 5504697 99630 0 5604327 0 5604327 84065 5520262 276013 276013 2733 2733 273280 273280 273280 343013 0 0 0 0 343013 273280 2738293 789776 640380 528472 4696921 343013 273280 69733 4766654 0 2738293 2028361 789776 640380 528472 69733 David Pfeil X BETTER ANGELS SOCIETY INC 5185 MACARTHUR BLVD STE 570 WASHINGTON DC 20016 N/A PC Amy Berg Fund for Education 100000 GEORGIA TECH FOUNDATION INC 760 SPRING ST NW SUITE 400 ATLANTA GA 30308 N/A PC Faculty Endowment Fund 200000 300000 14 4092 14 134079 18 96678 234849 234849 false false false false false false false false false false X X 1 David P Pfeil Revocable Trust 6801 Glendenny Lane Plano TX 75024 20249 X 2 Pfeil David 6801 Glendenny Lane Plano TX 75024 23764 X ALBEMARLE CP 33926 28492 ALPHABET INC CL A 43185 76856 AMAZON COM 50534 98506 APPLIED MATERIALS INC 44056 37080 ASTRAZENECA 92070 84390 BAE SYSTEMS PLC 13787 20863 BLACKROCK INC 34197 39979 CADENCE DESIGN SYSTEMS INC 37646 39661 CANADIAN NATL RAILWAY CO 37507 31570 CBRE GROUP 64568 66039 CHEMICAL AND MINING CO OF CHIL 34382 31997 COPART INC 19227 39599 CSX CORP 52616 51503 DEUTSCHE BOERSE ADR 19317 22366 ELECTRONIC ARTS 36602 42720 EPAM SYSTEMS INC 32300 39516 EVERGY, INC. 27301 30529 EXTRA SPACE STORAGE 44193 38746 FISERV, INC 24187 32251 GILEAD SCIENCES INC 8023 9237 GLOBANT SA 16187 19941 HDFC BANK LTD ADR 34614 40168 HERMES INTL 10 ADR 18706 20079 INFINEON TECH ADS 72875 63044 INTERCONTINENTAL EXCHANGE, INC 15302 20265 INTUITIVE SURGICAL 8232 19834 INVESCO QQQ TRUST 179388 503562 JOHNSON & JOHNSON 35121 49171 L'AIR LIQUIDE ADR OTC 42941 37184 L3HARRIS TECHNOLOGIES 35736 39322 LONZA GROUP AG UNSP/ADR 20753 20514 LVMH MOET HENN UNSP 66249 62993 MANNING & NAPIER CORE BOND SER 893037 816347 MANNING & NAPIER OVERSEAS SERI 125654 159389 MANNING & NAPIER UNCONSTRAINED 441356 408560 MASCO CORP 15013 21408 MASTERCARD INC 32362 92150 MERCADOLIBRE, INC 30714 37410 META PLATFORMS INC 71506 118859 MICROSOFT CORP 91546 98210 MODERNA, INC 307499 51975 MOODYS CORP 22669 32663 MSCI INC 15961 19800 NASDAQ OMX GROUP 18975 19946 NORTHROP GRUMMAN CORP 29154 30504 NVIDIA CORP 22100 537159 PEPSICO INC 105000 152060 QUALCOMM INC 60000 153620 RIBBON COMMUNICATIONS INC 159363 24960 ROCHE HOLDING LTD ADR 40564 44332 S&P GLOBAL INC COM 16260 20917 SERVICE NOW 25683 39224 TAIWAN SEMICONDUCTOR MFG CO LT 29343 64974 TECHTRONIC INDS SPD ADR 42250 39104 THE COCA-COLA CO 55796 63879 THERMO FISHER SCIENTIFIC INC 41804 48381 TRANSUNION COM USD0.01 38906 39865 UNION PACIFIC 27189 29417 VERTEX PHARMCTLS INC 9728 18524 VISA INC 24451 60996 WEST FRASER TIMBER 28879 30293 374956 351083 Administrative Fees 42988 42988 Bank Charges 282 282 State or Local Filing Fees 25 25 Investment Management Services 36170 36170 990-PF Estimated Tax for 2024 1000 Foreign Tax Paid 1743 1743