2026-09-03T09:19:56-00:00 2025-12-31 363314633 Rosetree & Company 8831 Kenneth Skokie IL 60076 990EZ 2025-01-01 300512492 Glenbrook High School Foundation GLEN 3801 W Lake Ave Glenview IL 600265806 Mathew Saffer President 2026-09-03 true Richard Rosenbaum P01082660 8476734010 2026-09-03 2025 X www.glenbrookfoundation.org X X 39689 X 20431 463 4662 13844 19170 -5326 289 20519 45072 45072 -24553 146074 121521 146074 121521 146074 121521 146074 121521 Support the activities of Glenbrook High School Scholarships to graduating students 10000 Innovation grants to teachers 4982 Other 14456 29438 Adam Mathein Secretary 001.00 0 Paul Pryma Trustee 001.00 0 Bill Knapp Trustee 001.00 0 Gabrielle Two Trustee 001.00 0 Matthew Saffar Chairman 001.00 0 Neale Williams Trustee 001.00 0 Charles Johns Superintendent 001.00 0 Maren Okrzynski Treasurer 001.00 0 Monique Collin Trustee 001.00 0 Ed Leszynski Trustee 001.00 0 Timothy Heublein Trustee 001.00 0 Michael Kupfer Trustee 001.00 0 false false false false false false 0 0 0 false false Maren Okrzynski 3801 W Lake Glenview IL 60026 6122377467 false false false false false false false false false false NONE NONE true X 58919 27699 80649 32274 35027 234568 58919 27699 80649 32274 35027 234568 234568 12 220 2722 4825 4662 12441 247009 0.94960 0.96740 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED X X X X false IL Form 990-EZ, Part I, Line 8, Other Revenue Miscellaneous 289 Form 990-EZ, Part I, Line 16, Other Expenses Administrative expenses 9,018 Form 990-EZ, Part I, Line 16, Other Expenses Advertising 5,062 Form 990-EZ, Part I, Line 16, Other Expenses Innovation grants 4,982 Form 990-EZ, Part I, Line 16, Other Expenses Bank charges 555 Form 990-EZ, Part I, Line 16, Other Expenses Distinguished Alumni award 1,000 Form 990-EZ, Part I, Line 16, Other Expenses Student club competition 4,862 Form 990-EZ, Part I, Line 16, Other Expenses Student scholarships 10,000 Form 990-EZ, Part I, Line 16, Other Expenses Other programs 8,593 Form 990-EZ, Part I, Line 16, Other Expenses Miscellaneous 1,000