2026-04-10T13:52:22-05:00 2025-12-31 Foundation Source 3333 New Hyde Park Rd Ste 406 New Hyde Park NY 11042 990PF 2025-01-01 822768926 The SS Mack Family Foundation % Foundation Source SSMA 8008391754 Foundation Source 501 Silverside Rd Wilmington DE 198091377 Molly Shafer Mack President 8008391754 2026-03-24 true Jeffrey D Haskell P01345770 8008391754 2025 2025-03-06 01:10:19Z X 902016 X 173220 369 369 27021 27021 2951 196436 42634 203561 70024 0 4520 4520 1000 6288 6288 11808 4520 6288 49300 49300 61108 4520 55588 142453 65504 0 24368 13319 13319 592316 745818 888697 616684 759137 902016 0 0 X 616684 759137 616684 759137 616684 759137 616684 142453 759137 759137 Publicly-traded Securities 196436 153802 42634 42634 42634 911 911 911 524 0 524 X 0 387 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 Molly Shafer Mack Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Pres 2.0 0 0 0 Thomas W Mack Foundation Source 501 Silverside Rd Wilmington DE 198091377 Dir, Sec, Treas 1.0 0 0 0 685625 21016 0 706641 0 706641 10600 696041 34802 34802 911 911 33891 33891 33891 55588 0 0 0 0 55588 33891 36650 21471 17120 19142 7075 101458 55588 33891 21697 123155 0 36650 86505 21471 17120 19142 7075 21697 Molly Shafer Mack Thomas W Mack X ARUNA PROJECT 316 W 4TH ST STE 300 CINCINNATI OH 45202 N/A PC General & Unrestricted 500 Bay High School 29230 WOLF RD Bay Village OH 44140 N/A GOV True Friend Award Scholarship Fund 1000 BAY PRESBYTERIAN CHURCH 25415 LAKE RD BAY VILLAGE OH 44140 N/A PC General & Unrestricted 5000 BAY VILLAGE EDUCATIONAL FOUNDATION INC PO BOX 40262 BAY VILLAGE OH 44140 N/A PC Special Education projects 1000 CHRIS AND OWEN KEDAS MEMORIAL FOUNDATION 338 CENTER ST HURON OH 44839 N/A PC General & Unrestricted 2000 CONNECTING FOR KIDS OF WESTLAKE OHIO 1730 COES POST RUN WESTLAKE OH 44145 N/A PC General & Unrestricted 3500 FEEDING SOULS MINISTRIES 4655 W 228TH ST FAIRVIEW PARK OH 44126 N/A PC General & Unrestricted 3000 HUMANE SOCIETY OF MADISON COUNTY 2020 PLAIN CITY GEORGESVILLE RD N WEST JEFFERSON OH 43162 N/A PC General & Unrestricted 250 ISLAND COMMUNITY CHURCH INC 83400 OVERSEAS HWY ISLAMORADA FL 33036 N/A PC Christmas Eve collection for Islamorada food bank 1000 LAKE ERIE FOUNDATION 236 WALNUT AVE LAKESIDE OH 43440 N/A PC General & Unrestricted 2500 LEUKEMIA & LYMPHOMA SOCIETY INC 6111 OAK TREE BLVD STE 130 INDEPENDENCE OH 44131 N/A PC The BAY VILLAGE Leukemia & Lymphoma Society "Visionaries of the Year" Campaign 1000 NATHANIELS HOPE INC 5210 S ORANGE AVE ORLANDO FL 32809 N/A PC General & Unrestricted 1500 NEW PERSPECTIVE FOUNDATION 12850 HWY 9 N STE 600 PMB 239 ALPHARETTA GA 30004 N/A PC General & Unrestricted 300 NUHOP CENTER FOR EXPERIENTIAL LEARNING 1077 TOWNSHIP RD 2916 PERRYSVILLE OH 44864 N/A PC General & Unrestricted 1500 OH-GO 3616 PLUM BROOK CIR SANDUSKY OH 44870 N/A PC General & Unrestricted 3000 SADDLEBACK VALLEY COMMUNITY CHURCH 1 SADDLEBACK PKWY LAKE FOREST CA 92630 N/A PC Daily Hope Ministry 500 SANDUSKY AREA MARITIME ASSOCIATION 125 MEIGS ST SANDUSKY OH 44870 N/A PC General & Unrestricted 500 THE BAY VILLAGE FOUNDATION PO BOX 40122 BAY VILLAGE OH 44140 N/A PC General & Unrestricted 500 THE CHAPEL 4444 GALLOWAY RD SANDUSKY OH 44870 N/A PC Colombia Mission Trip 250 THE CHAPEL 4444 GALLOWAY RD SANDUSKY OH 44870 N/A PC General & Unrestricted 6000 TRANSFORMATIONS BY AUSTIN ANGELS 25935 DETROIT RD PMB 220 CLEVELAND OH 44145 N/A PC General & Unrestricted 1000 UNIVERSITY OF DAYTON 300 COLLEGE PARK AVE DAYTON OH 45469 N/A PC Parent Leadership Council Pledge to OneDayOneDayton Wellness Center Fund 1000 VILLAGE PROJECT PO BOX 40023 BAY VILLAGE OH 44140 N/A PC General & Unrestricted 500 YOUNG LIFE 27070 DETROIT RD WESTLAKE OH 44145 N/A PC Year End Campaign for Bay Village 2000 YOUNG LIFE PO BOX 337 HURON OH 44839 N/A PC General & Unrestricted 4000 YOUNG LIFE 27070 DETROIT RD WESTLAKE OH 44145 N/A PC General & Unrestricted 3500 YOUNG LIFE 27070 DETROIT RD WESTLAKE OH 44145 N/A PC Charitable Event 2500 49300 14 369 14 27021 18 2951 30341 30341 false false false false false false false false false false X X 1 Mack Thomas W 26600 Jefferson Court Bay Village OH 44140 173220 X 1 NVIDIA CORP NVDA, 1000 sh. 173220 2025-12-17 BROWN CAPITAL MANAGEMENT SMALL 22565 13371 CHARLES SCHWAB INTRNTNL EQ 27373 39858 COHEN AND STEERS REALTY INCOME 19024 20420 DEUTSCHE ENHANCED COMMODITY ST 3665 3655 DODGE & COX INCOME FUND 62066 64864 FMI INTERNATIONAL FUND INSTITU 8887 10456 INVESCO QQQ TRUST 85940 160335 ISHARE MSCI EMU INDX 6899 11089 ISHARES TR S & P MIDCAP 400 IN 9182 14454 MFS MID CAP VALUE I 18471 21360 NEW WORLD FUND, INC (F2) 14084 19045 NVIDIA CORP 220970 252522 OAKMARK INTL SMALL CAP FD ADV 7918 10193 PACER US CASH COWS 100 ETF 27738 29303 PIMCO INCOME FUND P CLASS 66740 65062 VANGUARD FTSE EMERGING MARKETS 13514 18386 VANGUARD ST BOND ETF 33887 35070 VANGUARD TOTAL BOND MARKET ETF 96895 99254 Administrative Fees 6263 6263 State or Local Filing Fees 25 25 Investment Management Services 4520 4520 990-PF Estimated Tax for 2025 500 990-PF Extension for 2024 500