2026-05-09T11:09:12-00:00 2025-06-30 275088537 LPG CONSULTING 11 HODGES STREET NO ANDOVER MA 01845 990 2024-07-01 046035973 BOSTON LATIN SCHOOL ASSOCIATION BOST 6174241635 300 FENWAY STE A375 Boston MA 02115 FELIPE FLORES HERRERA CHIEF FINANCIAL OFFICER 6174241635 2026-05-09 true LEWIS GACK P01086651 9782582993 2026-05-09 X 2024 2025-03-06 01:10:19Z FELIPE FLORES HERRERA 300 FENWAY STE B313 Boston MA 02115 14840007 false X WWW.BLSA.ORG X 1905 MA THE ASSOCIATION EXISTS TO PRESERVE AND SUPPORT THE MISSION AND EXCELLENCE OF THE BOSTON LATIN SCHOOL, TO BUILD AND MAINTAIN RELATIONSHIPS WITH ALUMNI, TO RAISE FUNDS FOR THESE ACTIVITIES 24 23 25 145 0 4745067 4258893 355482 156874 987256 1040957 11689934 9383283 17777739 14840007 2726775 3093099 0 1830403 2129484 0 785533 772269 771944 5329447 5994527 12448292 8845480 90999998 100121080 2204047 2479649 88795951 97641431 X THE ASSOCIATION EXISTS TO PRESERVE AND SUPPORT THE MISSION AND EXCELLENCE OF THE BOSTON LATIN SCHOOL, TO BUILD AND MAINTAIN RELATIONSHIPS WITH ALUMNI, TO RAISE FUNDS FOR THESE ACTIVITIIES. false false 3220147 BOSTON LATIN SCHOOL SUPPORT IS DESIGNED TO SUPPLEMENT FUNDING OF PROGRAMS IN TECHNOLOGY, LIBRARY, THE ARTS, MUSIC, DRAMA, ATHLETICS AND THE GENERAL ACADEMIC PROGRAM AT BOSTON LATIN SCHOOL, A PUBLIC SECONDARY SCHOOL. 876155 STUDENT SCHOLARSHIPS ARE GRANTS FROM THE ASSOCIATION TO FUND COLLEGE SCHOLARSHIPS AND SUPPORTING GRADUATING SENIORS. 378388 COMMUNICATIONS AND PUBLICATIONS TO INFORM AND ENGAGE AND ALUMNI AND TO DISSEMINATE ALUMNI ACTIVITIES 188094 4662784 true true false false false false false false false true true false false false false true true false false false false false false true false false false true true true false false false false false false false false false false false false false false false false false false false false true 140 0 25 true false false false false false false false false false false false false false X 24 23 false false false false false false false true true false false true true true true true true true true false MA X X X FELIPE FLORES HERRERA 6179337935 300 Fenway A375 BOSTON MA 02115 PETER KELLY PRESIDENT 040.00 X X X X 312546 0 44470 PATRICK HOURIGAN DIRECTOR OF TECHNOLOGY 040.00 X 122857 0 33552 FELIPE FLORES HERRERA CHIEF FINANCIAL OFFICER 040.00 X 144000 0 12250 JOHN OWENS DIR OF ATHLETICS 040.00 X 112225 0 31026 MARY BETH OSKOWSKI SR. DIRECTOR OF DEVELOPMENT 040.00 X 117584 0 17587 KENNETH CROTTY CHAIR X X 0 0 0 MICHAEL CONTOMPASIS TRUSTEE X 0 0 0 LAWRENCE KEEGAN TRUSTEE X 0 0 0 NANCY PRIOR TRUSTEE X 0 0 0 THOMAS SPERA TRUSTEE X 0 0 0 CHARLOTTE HEMR TRUSTEE X 0 0 0 YVETTE PHILIP TRUSTEE X 0 0 0 MATTHEW O'MALLEY TRUSTEE X 0 0 0 LAURA MACDONALD TRUSTEE X 0 0 0 NATASHA TELESFORD WILLIAMS TRUSTEE X 0 0 0 WILLIAM SINNOTT TRUSTEE X 0 0 0 FRANCIS CHIN TRUSTEE X 0 0 0 JASON GALLAGHER HEAD OF SCHOOL X X 0 0 0 JOHN FITZGERALD CLERK X X 0 0 0 MICHAEL BOWERS TRUSTEE X 0 0 0 ROSAURYS SOSA TREASURER X X 0 0 0 CATHERINE WONG TRUSTEE X 0 0 0 MAGDA HERNANDEZ VICE CHAIR X X 0 0 0 RACHEL SKERRITT TRUSTEE X 0 0 0 CAMERON CASEY TRUSTEE X 0 0 0 VINCENT LETTERI TRUSTEE X 0 0 0 MARCUS HUGHES TRUSTEE X 0 0 0 SEAN KEOHANE TRUSTEE X 0 0 0 809212 138885 5 false true false 4258893 4258893 EVENTS 900099 128852 128852 OTHER 900099 28022 28022 156874 1040957 REALIZED AND UNREALIZED GAINS 900099 9383283 9383283 14840007 156874 2216944 2216944 876155 876155 0 0 0 0 1711379 1081213 247964 382202 0 260635 142671 39268 78696 157470 101650 21990 33830 0 0 78045 2500 52201 23344 0 148397 75000 73397 0 0 35694 26980 8714 82545 13090 11190 58265 0 64137 18486 20055 25596 8337 6912 1425 0 80343 55159 25184 0 0 3938 1280 886 1772 6551 6551 Printing and Publications 38717 20701 18016 Appeals Cultivation 35293 35293 Miscellaneous 33120 13321 19799 Reunion Expenses 132935 132935 23892 23892 5994527 4662784 546210 785533 X 582262 565366 437524 391473 625718 605079 14463 8580 8059 5883 89346435 98553279 90999998 100121080 1493168 1824296 710879 655353 2204047 2479649 X 2647973 3085121 86147978 94556310 88795951 97641431 90999998 100121080 8845480 X false X true X true false X 2080118 2925053 3665280 4745067 4258893 17674411 2080118 2925053 3665280 4745067 4258893 17674411 17674411 493342 638529 614676 987256 1059707 3793510 42361 167780 406924 355482 231874 1204421 22672342 0.77960 0.79830 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED false 86147978 2943288 9947272 3625244 856984 94556310 73769711 3543611 12405654 2843631 727367 86147978 67160558 2299536 7634118 2657678 666823 73769711 80135233 1575284 -10968640 2788445 792874 67160558 63064773 781215 19239034 2337002 612787 80135233 0.31000 0.69000 false false 14463 8580 5883 5883 Financial derivatives and other financial products Closely-held equity interests Federal income taxes THE ASSOCIATION HAS NO UNCERTAIN TAX POSITIONS NOTE 13 14765007 14765007 75000 75000 14840007 5919527 5919527 75000 75000 5994527 X X X X X false MA false false false true BOSTON LATIN SCHOOL AVE LOUIS PASTEUR BOSTON MA 02115 3220147 Book PROGRAM ASSISTANCE 1 SCHOLARSHIPS 397 876155 Book Part II Line 1 THE ASSOXCIATION MONITORS PROGRAM EXPENSES PROVIDED TO THE BOSTON LATIN SCHOOL THROUGH STRICT OVERSIGHT OF SAID PROGRAMS true X X false false false false false false false false false PETER KELLY PRESIDENT 262565 49981 18380 26090 357016 FELIPE FLORES HERRERA CHIEF FINANCIAL OFFICER 139000 5000 9730 2520 156250 PATRICK HOURIGAN DIRECTOR OF TECHNOLOGY 121357 1500 8495 25057 156409 Form 990, Part III, Line 4d Program Service Expenses 188,094, Grants and allocations 0, Revenue 0 THE ASSOCIATION ORGANIZES EVENTS TO ENGAGE ALUMNI AND FRIENDS BOTH LOCALLY AND REGIONALLY. Form 990, Part VI, Section B, Line 11A THE BOARD REVIEWS THE RETURN BEFORE FILING Form 990, Part VI, Section C, Line 19 POLICIES MUST BE REQUESTED IN WRITING Form 990, Part X, Section D, Line 25 THE ASSOCIATION HAS NO KNOWLEDGE OF UNCERTAIN TAX POSITIONS THAT QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE.