2026-06-12T10:16:01-05:00 2025-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2025-01-01 203367664 The Timothy and Susanne Sullivan Family Foundation % Foundation Source TIMO 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 TIMOTHY SULLIVAN PRESIDENT 8008391754 2026-06-10 true Jeffrey D Haskell P01345770 8008391754 2025 2025-03-06 01:10:19Z X 20423283 X 0 X 1450 1450 784786 784786 1507 2084184 1507 787743 787743 0 20207 20207 280956 69396 69396 370559 20207 69396 1405000 1405000 1775559 20207 1474396 -987816 767536 0 54216 370554 370554 20735929 19431775 20052729 20790145 19802329 20423283 0 0 X 20790145 19802329 20790145 19802329 20790145 19802329 20790145 -987816 19802329 19802329 Publicly-traded Securities 2084184 2082677 1507 1507 1507 10669 10669 10669 11000 0 11000 X 0 331 331 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 Susanne Sullivan Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, VP 1.0 0 0 0 Timothy P Sullivan Foundation Source 501 Silverside Rd Wilmington DE 198091377 Pres, Dir, Sec 1.0 0 0 0 Foundation Source 55 Walls Drive Ste 302 Fairfield CT 06824 Administrative 69371 21118921 143682 0 21262603 0 21262603 318939 20943664 1047183 1047183 10669 10669 1036514 1036514 1036514 1474396 0 0 0 0 1474396 1036514 2023 2022 2021 245052 96454 1398970 1740476 1474396 1036514 437882 2178358 0 245052 1933306 96454 1398970 437882 Susanne Sullivan Timothy P Sullivan X BIG SHOULDERS FUND 212 W VAN BUREN ST STE 900 CHICAGO IL 60607 N/A PC Sullivan Fellows Program and Covered Schools 775000 COME TO BELIEVE FOUNDATION PO BOX 786 NEW YORK NY 10150 N/A PC General & Unrestricted 25000 CRISTO REY JESUIT HIGH SCHOOL 1852 W 22ND PL CHICAGO IL 60608 N/A PC General & Unrestricted 25000 EVANSTON NORTHWESTERN HEALTHCARE 1001 UNIVERSITY PL STE 248 EVANSTON IL 60201 N/A PC General & Unrestricted 25000 JOSEPHINUM ACADEMY 1501 N OAKLEY BLVD CHICAGO IL 60622 N/A PC General & Unrestricted 25000 NEIGHBORHOOD HEALTH CLINIC INC 88 12TH ST N UNIT 100 NAPLES FL 34102 N/A PC Raven Pathology Building campaign 10000 NORTHLIGHT THEATRE INC 820 CHURCH ST FL 4 EVANSTON IL 60201 N/A PC Interplay fund 100000 NORTHWESTERN MEMORIAL FOUNDATION 541 N FAIRBANKS COURT STE 800 CHICAGO IL 60611 N/A PC Ruchim Endowment fund 100000 NORTHWESTERN UNIVERSITY 1201 DAVIS ST 3RD FLOOR EVANSTON IL 60208 N/A PC Shapiro Hall fund 125000 OLD ST PATRICKS CHURCH 711 W MONROE ST CHICAGO IL 60661 N/A PC General & Unrestricted 10000 ONE ACRE FUND 2070 GREEN BAY RD 183 HIGHLAND PARK IL 60035 N/A PC General & Unrestricted 10000 REHABILITATION INSTITUTE OF CHICAGO 355 E ERIE ST STE 10-2145 CHICAGO IL 60611 N/A PC RISE Climb fund 25000 UNITED STATES NAVAL ACADEMY FOUNDATION INC PO BOX 79169 BALTIMORE MD 21279 N/A PC Athletics and General Support fund 50000 UNIVERSITY OF CHICAGO 5235 S HARPER COURT 4TH FL CHICAGO IL 60615 N/A PC Biological Sciences Division Research fund 100000 1405000 14 1450 14 784786 18 1507 787743 787743 false false false false false false false false false false ISHARES S&P MIDCAP 400 BARRA V 36634 126984 ISHARES S&P MIDCAP 400 GROWTH 38110 191435 OPTION CARE HEALTH INC 1516922 1815861 VANGUARD S&P 500 ETF 161104 241445 WISDOMTREE FLOATING RATE TREAS 17679005 17677004 Administrative Fees 69371 69371 State or Local Filing Fees 25 25 Investment Management Services 20207 20207 990-PF Estimated Tax for 2025 11000 990-PF Excise Tax for 2024 269956