2025-11-17T13:30:28-06:00 2024-12-31 ERNST & YOUNG US LLP 99 WOOD AVENUE SOUTH ISELIN NJ 08830 990PF 2024-01-01 451742989 Siegel Family Endowment % LYUDMILA KOYENOVA SIEG 2033921495 1245 Broadway 16th FL New York NY 10001 KATHLEEN KNIGHT President & Exec Dir 6468604789 2025-11-17 true true michael sales P01770943 7325164200 2025-11-12 2024 2025-03-06 01:10:19Z X 568077763 X 0 X 3453156 3453156 5444732 5444732 0 0 30823007 58653364 52781455 67551252 92502350 0 3151570 3151570 344659 344659 31362 0 0 31362 44178 26507 0 17671 809792 809792 3667558 148125 285675 285675 6438 6438 697970 697970 9187327 26507 0 5345137 27792259 27792259 36979586 26507 0 33137396 30571666 92475843 0 128024 610942 610942 143959799 171113457 171113457 3685 332303233 35799289 35799289 886900 337768533 337768533 23087487 305654 22916340 22781833 22781833 0 3709 3709 500197981 568077763 568077763 23637 28069 23637 28069 X 500174344 568049694 500174344 568049694 500197981 568077763 500174344 30571666 37303684 568049694 568049694 FUND 1 P 30824795 30824795 30824795 FUND 4 P 1788 -1788 -1788 30823007 1285414 1285414 1285414 1073125 0 990000 2063125 X 0 777711 777711 false false false 0 0 0 false false true true false true true DE NY true false false true false true http://www.siegelendowment.org LYUDMILA KOYENOVA 2033921495 1245 BROADWAY 16TH FL NEW YORK NY 10001 false false false true true false false false false false false false false false false false false false false false false false false DAVID M SIEGEL 1245 Broadway 16th FL New York NY 10001 DIRECTOR, CHAIRMAN 8.0 0 0 0 SHERI VAMMEN 1245 Broadway 16th FL New York NY 10001 VICE CHAIR, SECRETARY 2.5 0 0 0 Richard A Sauer 1245 Broadway 16th FL New York NY 10001 treasurer 3.0 0 0 0 Kathleen Knight 1245 Broadway 16th FL New York NY 10001 E.D./President 50.0 0 0 0 Anzu Enterprises LLC 1245 Broadway 16th FL New York NY 10001 0 0 561000 27181 0 JOHN STEVEN IRONS JR 1245 BROADWAY 16TH FL NEW YORK NY 10001 SR VP & HEAD OF RSCH 40.0 374000 34768 MELBA J SONG 1245 BROADWAY 16TH FL NEW YORK NY 10001 VP & COO 40.0 308000 14635 JOSHUA L ELDER 1245 BROADWAY 16TH FL NEW YORK NY 10001 DIR & HEAD OF GRANTS 40.0 281000 14903 LAURA MAHER 1245 BROADWAY 16TH FL NEW YORK NY 10001 MGR/HEAD OF EXT ENG 0 184500 23710 ALEXANDRA M CHIN 1245 BROADWAY 16TH FL NEW YORK NY 10001 MANAGER GRANTMAKING 40.0 135000 21990 15 Common Group 548 Market St SAN FRANCISCO CA 94104 CONSULTING 293000 WHITEBOARD ADVISORS LLC 1000 POTOMAC STREET NW SUITE 150 WASHINGTON DC 20007 CONSULTING 195665 LENNY VAKNINE 10809 Nashville DrIVE COOPER CITY FL 33026 IT Services 62850 SOCAP GLOBAL 447 Sutter St Ste 405 713 SAN FRANCISCO CA 94108 CONSULTING 60000 NONE 45994724 159612692 307075290 512682706 0 512682706 7690241 504992465 25249623 25249623 1285414 2051199 3336613 21913010 21913010 21913010 33137396 0 21395 0 0 33158791 21913010 0 2022 2021 2020 0 0 22284921 10056856 11586223 11363703 55291703 33158791 0 21913010 11245781 66537484 0 0 0 0 0 66537484 22284921 10056856 11586223 11363703 11245781 DAVID M SIEGEL NONE X SEE Attachment 22 SEE Attachment 22 SEE Attachment NY 00000 SEE Attachment 22 27792259 27792259 SEE Attachment 23 SEE Attachment 23 SEE Attachment NY 00000 SEE Attachment 23 0 25100000 14 3453156 14 5444732 PARTNERSHIP INCOME 901101 10854017 14 -10854017 58653364 10854017 -1956129 58653364 67551252 false false false false false false false false false false TAX PREPARATION FEES 44178 26507 0 17671 VANGUARD S&P 500 ETF 34547959 34547959 RECURSION PHARMACEUTICALS INC. 1251330 1251330 FUND 1 AT COST 336426344 336426344 FUND 2 AT COST 883726 883726 FUND 3 AT COST 458463 458463 LEGAL FEES 31362 31362 SECURITY DEPOSIT 0 3545 3545 DUE FROM OTHERS 0 164 164 SPONSORSHIPS 212500 212500 IT EXPENSES 161276 161276 EVENT EXPENSES 88357 88357 REPAIRS AND MAINTENANCE 63400 63400 DUES AND SUBSCRIPTION 46907 46907 UTILITIES EXPENSES 38150 38150 INSURANCE 33218 33218 OFFICE EXPENSES 26282 26282 RECRUITMENT 8138 8138 SUPPLIES 5042 5042 PROFESSIONAL DEVELOPMENT 5028 5028 ADVERTISING 4725 4725 LICENSES AND FEES 2834 2834 INTERIOR DESIGNER 2113 2113 Partnership Income 58653364 52781455 CHANGE IN UNREALIZED 37303684 APPRECIATION ON ASSETS PER BOOKS 0 CREDIT CARD PAYABLE 28069 CONSULTING FEES 659390 659390 TSI SERVICE COSTS* 71377 71377 IT TECH CONSULTING 62850 62850 PHOTOGRAPHER 11750 11750 ARCHITECT 2850 2850 TECH FEE 1325 1325 ADMIN FEE 250 250 FEDERAL INCOME TAXES 3100000 FEDERAL EXCISE TAXES 567558 MANABU STRATEGIES LTD 190 ELGIN AVENUE GEORGE TOWN GRAND CAYMAN CJ 981576593 NONTAXABLE DISTRIBUTION (INVESTMENT IS NOT AN EXCESS BUSINESS HOLDING) 348491596 348491596 INQUISITIONIS HOLDINGS LLC 1245 BROADWAY 16TH FLOOR new york NY 10001 852420920 CAPITAL CONTRIBUTION (INVESTMENT IS NOT AN EXCESS BUSINESS HOLDING) 50000 50000