2026-09-10T15:39:13-05:00 2025-10-31 135565207 KPMG LLP Two Manhattan West 375 9th Ave New York NY 10001 990PF 2024-11-01 731683871 CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp CHDI 9735972510 Lowenstein Sandler 1 Lowenstein Dr Roseland NJ 07068 KENNETH J SLUTSKY President 9735972510 2026-08-24 0 1 Jay Freedman P01758248 2127589700 2024 X 83060450 X 200000000 1572808 1572808 5892695 5892695 38000 60125250 38000 1378677 1378677 208882180 8882180 0 0 0 1552630 0 1403690 169115 156560 0 2014 0 0 111927 0 0 217396497 9802 214325793 219232183 166362 215729483 531050 531050 219763233 166362 216260533 -10881053 8715818 14585 13178 13178 89171708 40675102 40675102 2050844 2044822 2044822 0 39310156 39310156 80000 155000 155000 254629 862192 862192 91571766 83060450 83060450 34880887 37922568 8376 0 34889263 37922568 X 56682503 45137882 56682503 45137882 91571766 83060450 56682503 -10881053 0 45801450 663568 45137882 PUBLICLY TRADED SECURITIES P 60125250 60087250 38000 38000 38000 121150 0 121150 0 121150 164922 0 0 0 164922 0 43772 43772 0 0 0 0 0 0 0 0 0 0 0 1 1 FL 1 0 0 0 0 1 N/A Kenneth J Slutsky - TEIG 9735972510 Lowenstein Sandler One Lowenstein Drive Roseland NJ 07068 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Kenneth J Slutsky Attn TEIG Lowenstein Sandler One Lowenstein Drive Roseland NJ 07068 Dir./Pres/Asst Treas/Asst Sec 2.00 0 0 0 Christopher Austin 350 Seventh Ave Suite 200 New York NY 10001 Director 1.50 0 0 0 James Bradner 350 Seventh Ave Suite 200 New York NY 10001 Director 1.50 0 0 0 Elizabeth Fascitelli 350 Seventh Ave Suite 200 New York NY 10001 Director 1.50 0 0 0 Alexandra P Mansbach 350 Seventh Ave Suite 200 New York NY 10001 Director 2.00 0 0 0 John Maraganore 350 Seventh Ave Suite 200 New York NY 10001 Director 1.50 0 0 0 Thomas D Stern 350 Seventh Ave Suite 200 New York NY 10001 Director 1.50 0 0 0 Robi Blumenstein-pd thru CHDI Mgt I 350 Seventh Ave Suite 200 New York NY 10001 President CHDI Mgt Inc 39.00 600000 32939 0 Timothy Hentzel 350 Seventh Ave Suite 200 New York NY 10001 VP/Treasurer/Secretary 1.00 0 0 0 Triplet Investment Company LLC Attn TEIG Lowenstein Sandler One Lowenstein Drive Roseland NJ 07068 Member 9.00 0 0 0 NONE 0 CHDI Mgt Inc 350 Seventh Ave Suite 200 New York NY 10001 Direct pgrm svcs except for $3,987,392 of indr exp 49204536 SheppardMullinRichter & Hampton LLP 330 S Hope St 43rd Fl Los Angeles CA 90071 Legal 664096 Fasken Martineau DuMoulin LLP 333 Bay St Ste 2400 PO Box 20 Toronto Ontario CA Legal 552107 Charitable Services Partners LP 1350 Broadway Ste 2101 New York NY 10018 Legal, Accounting and Other Services 307515 Computer Packages Inc 9801 Washingtonian Blvd Ste 400 Gaithersburg MD 20878 Legal 187487 0 Medical (neurodegenerative) research performed on contract basis on behalf and at direction of Foundation, plus workshops, conferences, advice, and dissemination of data and information to research community. Does not include "programmatic payments" in Part VII. 165121257 0 124631953 37697550 155000 162484503 0 0 162484503 2437268 160047235 8002362 8002362 121150 121150 7881212 0 7881212 0 7881212 216260533 0 216260533 7881212 0 0 124799672 163190369 154840428 170782685 182191297 795804451 216260533 0 0 0 7881212 208379321 0 0 1004183772 0 0 0 0 0 200000000 0 804183772 87990041 154840428 170782685 182191297 208379321 Triplet Investment Company LLC X Gordon Research Conferences 5586 Post Rd G02 East Greenwich RI 02818 None PC Support for a conference 25000 Horizon Community Funds 209 Greenup St Suite 410 Covington KY 41011 None PC Support for fundraising 5000 Huntington's Disease Society of America 505 Eighth Ave Ste 1402 New York NY 10018 None PC Support for fellowship programs and convention 99950 Johns Hopkins University Suite 914 550 N Broadway Baltimore MD 21205 None PC Establish a medical center 330000 Factor-H 7917 Hollywood Boulevard Los Angeles CA 90046 None PC Support for non-for-profit activities 36000 Help 4 HD International Incorporated 6712 Folkstone Way Elk Grove CA 95758 None PC Support for a conference 15100 Huntington's Disease Youth Organization PO Box 530276 Livonia MI 48153 None PC Support for a meeting 20000 531050 0 14 1572808 14 5892695 14 1378677 14 38000 0 8882180 0 8882180 0 0 0 0 0 0 0 0 0 0 X X 1 NSN Foundation Inc C/O Lowenstein Sandler TEIG One Low Roseland NJ 07068 200000000 X Audit Fees 71020 71020 0 Accounting Fees 98095 85540 0 Compensation of Officers, Directors, Trustees, Etc. Form 990-PF, Part I, Line 13 Column A CHDI Foundation, Inc. paid a management services company for services provided by a person who had responsibilities or powers arguably similar to those of officers, directors, or trustees. This compensation has been reported in Part VII, but not on Part I, Line 13, Column (a) as it was paid to the services company and is included in Part I, Line 23, Column (a). 39310156 39310156 0 0 HD Genetics Investment AT COST 155000 155000 Legal Fees 1552630 0 1403690 Divd/Int Receivable 254629 861345 861345 Deferred Tax Assets 0 847 847 Unrealized Gain/Loss on Investments Carried at FMV 663568 Contract Research Expenses 167698323 0 165121257 Bank Charges 7414 0 0 Direct pgrm svcs except for $3,987,392 of indr exp 49680958 0 49204536 Custody Fees 9802 9802 0 Interest on repaid research contract 1378677 1378677 1378677 Deferred Tax Liabilities 8376 0 Other Service Fees 2014 0 0 Federal Taxes 111927 0 0