2025-05-13T15:02:01-05:00 2024-12-31 030498867 LOVETT BOOKMAN HARMON MARKS LLP 1001 LIBERTY AVENUE SUITE 1150 PITTSBURGH PA 15222 990PF 2024-01-01 202502389 MATHIESON FAMILY FOUNDATION MATH 4129636160 103 BRILLIANT AVENUE SUITE A PITTSBURGH PA 15215 PETER F MATHIESON DIRECTOR & PRESIDENT 4129636160 2025-05-07 1 0 ROBERT S LANG P00144610 4123922220 2024 2025-03-06 01:10:19Z X 1647774 X X 55 55 14348 14348 103896 321198 103896 118299 118299 0 0 0 3761 0 3761 3000 0 3000 6761 0 6761 66000 66000 72761 0 72761 45538 118299 13572 76831 76831 752581 777078 1534232 72831 33954 36304 231 407 407 839215 888270 1647774 0 0 X 0 3517 0 0 839215 884753 839215 888270 839215 888270 839215 45538 3517 888270 0 888270 500 SHS ANHEUSER BUSCH INC P 2023-08-02 2024-01-03 31873 28074 3799 3799 650 SHS ADVANCE AUTO PARTS P 2023-08-02 2024-01-03 39784 42216 -2432 -2432 50 SHS NORTHERN TRUST CO P 2016-03-10 2024-02-01 3948 3155 793 793 50 SHS JOHNSON & JOHNSON P 2005-07-15 2024-02-13 7845 3251 4594 4594 300 SHS NORTHERN TRUST CO P 2013-06-19 2024-02-13 23362 17555 5807 5807 150 SHS NORTHERN TRUST CO P 2016-03-10 2024-02-13 11681 9465 2216 2216 50 SHS JOHNSON & JOHNSON P 2005-07-15 2024-05-13 7525 3251 4274 4274 100 SHS JOHNSON & JOHNSON P 2005-12-29 2024-05-13 15050 6029 9021 9021 1,600 SHS FIRST TRUST NORTH P 2017-11-22 2024-06-04 48631 38877 9754 9754 25 SHS JOHNSON & JOHNSON P 2005-12-29 2024-07-17 3913 1507 2406 2406 350 SHS EBAY P 2022-03-21 2024-10-08 23581 19406 4175 4175 150 SHS EXPEDIA INC P 2024-02-13 2024-10-08 22918 20207 2711 2711 50 SHS BERKSHIRE HATHAWAY CL B P 2018-10-12 2024-10-08 22679 10330 12349 12349 300 SHS BLACKSTONE GROUP P 2019-10-09 2024-11-25 58408 13979 44429 44429 103896 1644 0 1644 0 1644 1187 0 0 0 1187 0 457 0 0 0 0 0 0 0 0 0 0 0 1 PA 1 0 0 0 0 1 N/A PETER F MATHIESON 4129636160 103 BRILLIANT AVENUE SUITE A PITTSBURGH PA 15215 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PETER F MATHIESON 103 BRILLIANT AVENUE - SUITE A PITTSBURGH PA 15215 DIRECTOR & PRESIDENT 1.00 0 0 0 ANDREW F MATHIESON 300 DRAKES LANDING ROAD SUITE 250 GREENBRAE CA 94904 DIRECTOR & VICE PRESIDENT 1.00 0 0 0 MARGARET M CONVER 15 PASTERN LANE BLUE BELL PA 19422 DIRECTOR & TREASURER/ SECRETARY 1.00 0 0 0 NONE 0 NONE 0 0 1480604 26128 0 1506732 0 0 1506732 22601 1484131 74207 74207 1644 1644 72563 0 72563 0 72563 72761 0 72761 72563 759 0 0 72761 759 0 0 72002 0 0 0 0 0 0 0 0 561 0 0 0 X BETSY'S PARK PO BOX 688 HOLDERNESS NH 03245 NONE PUBLIC CHARITY GENERAL SUPPORT 1000 BIG SKY YOUTH EMPOWERMENT 225 E MENDENHALL STREET BOZEMAN MT 59715 NONE PUBLIC CHARITY GENERAL SUPPORT 5000 BUCKNELL UNIVERSITY ONE DENT DRIVE LEWISBURG PA 17837 NONE EDUCATION AW & AR MATHIESON SCHOLARSHIP 2500 BUCKNELL UNIVERSITY ONE DENT DRIVE LEWISBURG PA 17837 NONE EDUCATION AW & AR MATHIESON SCHOLARSHIP 2500 CONNECTICUT COLLEGE 270 MOHEGAN AVE NEW LONDON CT 06320 NONE EDUCATION SCHOLARSHIP FUND 2500 DEERWOOD FOUNDATION 133 EDGEWOOD ROAD CORNWALL CT 05753 NONE PUBLIC CHARITY FOREVER SQUAM / ANUAL SUPPORT 5000 FRIENDS OF HOLDERNESS LIBRARY 866 US ROUTE 3 HOLDERNESS NH 03245 NONE PUBLIC CHARITY GENERAL SUPPORT 2500 GALLATIN RIVER TASK FORCE PO BOX 160513 BIG SKY MT 59716 NONE PUBLIC CHARITY GENERAL SUPPORT 2500 PITTSBURGH CULTURAL TRUST 4165 BLAIR STREET PITTSBURGH PA 15207 NONE PUBLIC CHARITY GENERAL SUPPORT 5000 SQUAM LAKES ASSOCIATION 534 US ROUTE 3 HOLDERNESS NH 03245 NONE PUBLIC CHARITY GENERAL SUPPORT 2500 SQUAM LAKES CONSERVATION SOCIETY PO BOX 696 HOLDERNESS NH 03245 NONE PUBLIC CHARITY GENERAL SUPPORT 5000 SQUAM LAKES NATURAL SCIENCE CENTER 23 SCIENCE CENTER ROAD HOLDERNESS NH 03245 NONE PUBLIC CHARITY GENERAL SUPPORT 2500 STENTON 4601 N 18TH STREET PHILADELPHIA PA 19140 NONE PUBLIC CHARITY CAPITAL CAMPAIGN 5000 SWEETWATER SPECTRUM 369 FIFTH STREET WEST SONOMA CA 95476 NONE PUBLIC CHARITY GENERAL SUPPORT 5000 THE ARTS COUNCIL OF BIG SKY PO BOX 160308 BIG SKY MT 59716 NONE PUBLIC CHARITY PROGRAM SUPPORT 5000 THE BIG SKY COMMUNITY ORGANIZATION 285 RIVER AVENUE PITTSBURGH PA 15215 NONE PUBLIC CHARITY GENERAL SUPPORT 2000 THE SAVOY COMPANY ENDOWMENT 730 ASTOR PLACE NORRISTOWN PA 19401 NONE PUBLIC CHARITY GENERAL SUPPORT 7000 UNITED SOUTH END SETTLEMENTS 48 RUTLAND STREET BOSTON MA 02118 NONE PUBLIC CHARITY CAMP HALE PROGRAM 1000 YELLOW DOG COMMUNITY & CONSERVATION FOUNDATION 213 SOUTH WILSON AVE BOZEMAN MT 59715 NONE PUBLIC CHARITY GENERAL SUPPORT 2500 66000 0 14 55 14 14348 18 103896 0 118299 0 118299 0 0 0 0 0 0 0 0 0 0 BOOKKEEPING 3000 0 3000 CORPORATE STOCKS 777078 1534232 OTHER ASSETS AT COST 33954 36304 LBHM 3761 0 3761 ACCRUED INCOME 231 407 407 COST BASIS ADJUSTMENT 3517