Nonprofit · EIN 59-0735717
HOWARD HUGHES MEDICAL INSTITUTE
Also known as HEIDI HENNING
Tax-exempt · CHEVY CHASE, MD 20815
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 | $2,004,784,057 | $1,178,202,544 | $826,581,513 | $29,497,763,012 | $1,879,493,442 | $27,618,269,570 |
| August 31, 2024 | 990 | $1,760,221,928 | $1,152,447,870 | $607,774,058 | $27,296,895,597 | $1,735,903,595 | $25,560,992,002 |
| August 31, 2023 | 990 | $749,022,788 | $1,147,090,579 | -$398,067,791 | $25,892,499,538 | $1,715,409,329 | $24,177,090,209 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $1,783,098
- Program service revenue
- $4,608,732
- Investment income
- $1,966,414,132
- Royalties
- $31,586,061
- Net gain from sales of assets
- $1,697,993,974
- Tax-exempt bond proceeds
- $3,001,710
- Other revenue
- $31,978,095
Expenses
- Grants and similar amounts paid
- $63,319,232
- Compensation of officers, directors and key employees
- $11,960,511
- Other salaries and wages
- $378,317,566
- Salaries, compensation and benefits (total)
- $490,580,362
- Professional fundraising fees
- $0
- Legal fees
- $4,334,735
- Accounting fees
- $1,178,958
- Occupancy
- $93,416,098
- Travel
- $10,390,400
- Depreciation
- $114,802,329
- Program services (functional)
- $944,508,067
- Management and general (functional)
- $233,694,477
Balance sheet and other
- Total assets, start of year
- $27,296,895,597
- Total assets, end of year
- $29,497,763,012
- Total liabilities, end of year
- $1,879,493,442
- Net assets, end of year
- $27,618,269,570
- Land, buildings and equipment
- $759,927,096
- Publicly traded securities
- $5,409,644,608
- Net assets without donor restrictions
- $27,618,269,570
- Gross unrelated business income
- $69,894,676
- Gross receipts
- $20,140,663,337
- Employees
- 2,627
- Volunteers
- 0
- Year formed
- 1953
- State of legal domicile
- DE
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DONALD KOCH | VP & CHIEF INVESTMENT OFFICER Officer | 40 | $1,928,020 | $76,946 |
| ERIN K O'SHEA PHD | PRESIDENT Officer | 40 | $1,652,120 | $69,264 |
| MARK SPROLES | MANAGING DIRECTOR, PRIVATE MARKETS Highest-paid employee | 40 | $1,207,419 | $36,651 |
| KAREN EIFLER | MANAGING DIRECTOR, PUBLIC MARKETS Highest-paid employee | 40 | $1,160,055 | $36,152 |
| GLEN ZWICKER | MANAGING DIRECTOR & HEAD OF INVESTMENT OPERATIONS Highest-paid employee | 40 | $1,043,689 | $74,835 |
| HEIDI E HENNING ESQ | VP & GENERAL COUNSEL & SECRETARY Officer | 40 | $831,890 | $55,620 |
| RICHARD AXEL MD | INVESTIGATOR Highest-paid employee | 40 | $806,661 | $48,264 |
| LESLIE B VOSSHALL PHD | VP & CHIEF SCIENTIFIC OFFICER Officer | 40 | $772,292 | $78,035 |
| BLANTON TOLBERT PHD | VP SCIENCE LEADERSHIP AND CULTURE (THRU 05/25)/LAB HEAD Officer | 40 | $778,489 | $54,879 |
| RONALD VALE PHD | SENIOR GROUP LEADER/FORMER VP & EXEC. DIR., JRC Highest-paid employee | 40 | $769,522 | $56,548 |
| NELSON SPRUSTON PHD | VP & EXEC DIR, JANELIA RESEARCH CAMPUS Officer | 40 | $643,812 | $71,571 |
| DAVID E CLAPHAM PHD | SENIOR GROUP LEADER/FORMER VP & CHIEF SCIENTIFIC OFFICER Former | 40 | $590,291 | $73,447 |
| GERALD M RUBIN PHD | SENIOR GROUP LEADER/FORMER VP & EXEC. DIR., JRC Former | 40 | $599,415 | $62,422 |
| SEAN B CARROLL PHD | INVESTIGATOR/FORMER VP SCI. & ED. MEDIA GROUP Former | 40 | $593,698 | $61,567 |
| SETH GROSSMAN ESQ | VP, CHIEF OPERATING OFFICER & SENIOR ADVISOR TO THE PRESIDENT Officer | 40 | $541,218 | $46,943 |
19 more people on this return
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| LYNNE LOCHTE | CHIEF FINANCIAL OFFICER & TREASURER Officer | 40 | $481,161 | $53,729 |
| KRISTINA HEIBERGER ESQ | DEPUTY GENERAL COUNSEL & ASSISTANT SECRETARY Officer | 40 | $425,011 | $82,272 |
| BODO STERN PHD | CHIEF OF STRATEGIC INITIATIVES Officer | 40 | $446,695 | $54,115 |
| NATASHA NEISES | SENIOR DIRECTOR, FINANCIAL PLANNING & ANALYSIS Former | 40 | $294,592 | $45,058 |
| JEREMY COMPTON | CONTROLLER Officer | 40 | $265,218 | $40,264 |
| KRISTIAN GREENE | DIRECTOR, TREASURY OPERATIONS & ASSISTANT TREASURER Officer | 40 | $176,055 | $55,676 |
| CLAYTON S ROSE PHD | TRUSTEE, CHAIR Trustee or director | 6 | $100,000 | $0 |
| CHARLENE BARSHEFSKY ESQ | TRUSTEE, CHAIR NOM & GOV COMM Trustee or director | 4 | $87,500 | $0 |
| ALISON F RICHARD PHD | TRUSTEE Trustee or director | 3 | $70,000 | $0 |
| DEBORA L SPAR PHD | TRUSTEE, CHAIR AUDIT & COMP Trustee or director | 4 | $70,000 | $0 |
| FRED R LUMMIS | TRUSTEE, CHAIR FINANCE COMM Trustee or director | 4 | $70,000 | $0 |
| JOSEPH L GOLDSTEIN MD | TRUSTEE Trustee or director | 3 | $70,000 | $0 |
| DAVID JULIUS PHD | TRUSTEE, CHAIR RESEARCH COMM Trustee or director | 3 | $60,000 | $0 |
| MARGARET D TUTWILER | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| PAUL M NURSE PHD | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| RISA LAVIZZO-MOUREY MD MBA | TRUSTEE, CHAIR EDUCATION COMM Trustee or director | 3 | $60,000 | $0 |
| KURT L SCHMOKE ESQ | TRUSTEE (THRU 10/24) Trustee or director | 2 | $50,000 | $0 |
| JAY JACOBS | TRUSTEE (AS OF 11/24) Trustee or director | 2 | $15,000 | $0 |
| EDITH HEARD PHD | TRUSTEE (AS OF 02/25)/ADVISORY BOARD MEMBER (2024) Trustee or director | 2 | $12,500 | $0 |
990 for the year ended August 31, 2024: 34 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DONALD KOCH | VP & CHIEF INVESTMENT OFFICER Officer | 40 | $3,592,895 | $71,621 |
| MARK SPROLES | MANAGING DIRECTOR, PRIVATE MARKETS Highest-paid employee | 40 | $1,625,452 | $67,452 |
| ERIN K O'SHEA PHD | PRESIDENT Officer | 40 | $1,596,598 | $64,040 |
| GLEN ZWICKER | MANAGING DIRECTOR & HEAD OF INVESTMENT OPERATIONS Highest-paid employee | 40 | $1,454,312 | $70,597 |
| RICHARD A PENDER | MANAGING DIRECTOR, PUBLIC MARKETS (THRU 4/23) Highest-paid employee | 40 | $1,107,827 | $32,888 |
| BLANTON TOLBERT PHD | VP SCIENCE LEADERSHIP AND CULTURE Officer | 40 | $1,060,174 | $53,029 |
| KAREN EIFLER | MANAGING DIRECTOR, PUBLIC MARKETS Highest-paid employee | 40 | $989,382 | $34,649 |
| HEIDI E HENNING ESQ | VP & GENERAL COUNSEL & SECRETARY Officer | 40 | $889,582 | $62,773 |
| SEAN B CARROLL PHD | INVESTIGATOR/ FORMER VP SCI. & ED.MEDIA GROUP (THRU 11/23) Officer | 40 | $848,487 | $56,709 |
| JUSTIN GALEN | MANAGING DIRECTOR, PRIVATE MARKETS (THRU 4/24) Highest-paid employee | 40 | $827,774 | $66,420 |
| LESLIE B VOSSHALL PHD | VP & CHIEF SCIENTIFIC OFFICER Officer | 40 | $811,829 | $68,447 |
| RONALD VALE PHD | VP & EXEC DIR, JANELIA RESEARCH CAMPUS (THRU 07/24) Officer | 40 | $749,798 | $57,920 |
| NELSON SPRUSTON PHD | VP & EXEC DIR, JANELIA RESEARCH CAMPUS (AS OF 08/24) Officer | 40 | $667,816 | $72,818 |
| DANIEL A CRONIN PHD | VP & CHIEF FINANCIAL & OPERATING OFFICER (THRU 01/23) Former | 40 | $684,626 | $4,035 |
| GERALD M RUBIN PHD | SENIOR GROUP LEADER/FORMER VP&EXEC DIR, JRC Former | 40 | $588,673 | $57,539 |
| DAVID E CLAPHAM PHD | SENIOR GROUP LEADER/FORMER VP & CHIEF SCIENTIFIC OFFICER Former | 40 | $566,820 | $68,522 |
| DENNIS MCKEARIN PHD | SENIOR SCIENTIFIC OFFICER/FORMER VICE PRESIDENT OF OPERATIONS Former | 40 | $459,095 | $55,722 |
| BODO STERN PHD | CHIEF OF STRATEGIC INITIATIVES Officer | 40 | $431,266 | $50,208 |
| KRISTINA HEIBERGER ESQ | DEPUTY GENERAL COUNSEL & ASSISTANT SECRETARY Officer | 40 | $397,542 | $72,740 |
| LYNNE LOCHTE | CHIEF FINANCIAL OFFICER & TREASURER Officer | 40 | $406,686 | $50,902 |
| NATASHA NEISES | SENIOR DIRECTOR, FINANCIAL PLANNING & ANALYSIS Officer | 40 | $282,740 | $43,594 |
| JEREMY COMPTON | ASSOCIATE CONTROLLER (THRU 7/24)/CONTROLLER & ASSISTANT TREASURER (AS OF 08/24) Officer | 40 | $242,127 | $35,468 |
| CLAYTON S ROSE PHD | TRUSTEE, CHAIR Trustee or director | 6 | $100,000 | $0 |
| ALISON F RICHARD PHD | TRUSTEE, CHAIR EDUCATION COMM Trustee or director | 4 | $70,000 | $0 |
| CHARLENE BARSHEFSKY ESQ | TRUSTEE, CHAIR NOM & GOV COMM Trustee or director | 4 | $70,000 | $0 |
| DEBORA L SPAR PHD | TRUSTEE, CHAIR AUDIT & COMP Trustee or director | 4 | $70,000 | $0 |
| FRED R LUMMIS | TRUSTEE, CHAIR FINANCE COMM Trustee or director | 4 | $70,000 | $0 |
| JOSEPH L GOLDSTEIN MD | TRUSTEE, CHAIR RESEARCH COMM Trustee or director | 4 | $70,000 | $0 |
| DAVID JULIUS PHD | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| KURT L SCHMOKE ESQ | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| MARGARET D TUTWILER | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| PAUL M NURSE PHD | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| RISA LAVIZZO-MOUREY MD MBA | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| SETH GROSSMAN ESQ | VP, CHIEF OPERATING OFFICER & SENIOR ADVISOR TO THE PRESIDENT (AS OF 5/24) Officer | 40 | $0 | $0 |
990 for the year ended August 31, 2023: 35 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DONALD KOCH | VP & CHIEF INVESTMENT OFFICER Officer | 40 | $2,471,389 | $69,294 |
| GREGORY DENINNO | MANAGING DIRECTOR, PRIVATE MARKETS (THRU 9/22) Highest-paid employee | 40 | $2,164,572 | $47,533 |
| RICHARD A PENDER | MANAGING DIRECTOR, PUBLIC MARKETS (THRU 4/23) Highest-paid employee | 40 | $1,624,385 | $61,873 |
| ERIN K O'SHEA PHD | PRESIDENT Officer | 40 | $1,579,347 | $60,541 |
| GLEN ZWICKER | MANAGING DIRECTOR & HEAD OF INVESTMENT OPS Highest-paid employee | 40 | $1,370,091 | $67,763 |
| MARK SPROLES | MANAGING DIRECTOR, PRIVATE MARKETS Highest-paid employee | 40 | $950,676 | $32,177 |
| SEAN B CARROLL PHD | VP FOR SCIENCE & EDUCATIONAL MEDIA GROUP Officer | 40 | $830,494 | $53,551 |
| HEIDI E HENNING ESQ | VP & GENERAL COUNSEL & SECRETARY Officer | 40 | $743,698 | $67,468 |
| RICHARD AXEL PHD | INVESTIGATOR Highest-paid employee | 40 | $750,671 | $54,145 |
| RONALD VALE PHD | VP & EXEC DIR, JANELIA RESEARCH CAMPUS Officer | 40 | $723,393 | $61,864 |
| LESLIE B VOSSHALL PHD | VP & CHIEF SCIENTIFIC OFFICER Officer | 40 | $672,222 | $65,705 |
| DANIEL A CRONIN PHD | VP & CHIEF FINANCIAL & OPERATING OFFICER (THRU 1/23) Officer | 40 | $671,153 | $46,419 |
| DAVID E CLAPHAM PHD | SENIOR GROUP LEADER/FORMER VP & CHIEF SCIENCE OFFICER Former | 40 | $633,140 | $64,480 |
| GERALD M RUBIN PHD | SENIOR GROUP LEADER/FORMER VP&EXEC DIR, JRC Former | 40 | $566,244 | $55,467 |
| DENNIS MCKEARIN PHD | SENIOR SCIENTIFIC OFFICER/FORMER VP OF OPERATIONS Former | 40 | $473,061 | $52,389 |
| BODO STERN PHD | CHIEF OF STRATEGIC INITIATIVES Officer | 40 | $412,714 | $47,118 |
| ANN K BATLLE ESQ | DEPUTY GENERAL COUNSEL & ASSISTANT SECRETARY (THRU 2/23) Officer | 40 | $379,750 | $64,069 |
| KRISTINA HEIBERGER | DEPUTY GENERAL COUNSEL & ASSISTANT SECRETARY (AS OF 2/23) Officer | 40 | $286,350 | $72,870 |
| NATASHA NEISES | SENIOR DIRECTOR, FINANCIAL PLANNING & ANALYSIS Officer | 40 | $268,438 | $39,228 |
| MONIQUE L MARCUS | CONTROLLER (THRU 9/22) Officer | 40 | $240,170 | $43,263 |
| JEREMY COMPTON | ASSOCIATE CONTROLLER & ASSISTANT TREASURER Officer | 40 | $216,469 | $33,018 |
| SUSAN S PLOTNICK | DIRECTOR OF FINANCE & ASSISTANT TREASURER (THRU 6/22) Former | 40 | $165,867 | $23,545 |
| BLANTON TOLBERT PHD | VICE PRESIDENT OF SCIENCE LEADERSHIP AND CULTURE (AS OF 11/22) Officer | 40 | $118,714 | $11,711 |
| LYNNE LOCHTE | CHIEF FINANCIAL OFFICER & TREASURER (AS OF 8/23) Officer | 40 | $84,619 | $18,038 |
| CLAYTON S ROSE PHD | TRUSTEE, CHAIR Trustee or director | 6 | $100,000 | $0 |
| ALISON F RICHARD PHD | TRUSTEE, CHAIR EDUCATION COMM Trustee or director | 4 | $70,000 | $0 |
| CHARLENE BARSHEFSKY ESQ | TRUSTEE, CHAIR NOM & GOV COMM Trustee or director | 4 | $70,000 | $0 |
| DEBORA L SPAR PHD | TRUSTEE, CHAIR AUDIT & COMP Trustee or director | 4 | $70,000 | $0 |
| FRED R LUMMIS | TRUSTEE, CHAIR FINANCE COMM Trustee or director | 4 | $70,000 | $0 |
| JOSEPH L GOLDSTEIN MD | TRUSTEE, CHAIR RESEARCH COMM Trustee or director | 4 | $70,000 | $0 |
| DAVID JULIUS PHD | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| KURT L SCHMOKE ESQ | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| MARGARET D TUTWILER | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| RISA LAVIZZO-MOUREY MD MBA | TRUSTEE Trustee or director | 2 | $60,000 | $0 |
| PAUL M NURSE PHD | TRUSTEE Trustee or director | 2 | $30,000 | $0 |
Address and contacts
- Address (IRS master file)
- 4000 JONES BRIDGE RD, CHEVY CHASE, MD 20815-6720
- Principal officer (990 for 2024)
- Erin O'Shea, 4000 JONES BRIDGE ROAD, CHEVY CHASE, MD 208156789
- Signed the 990
- LYNNE LOCHTE, CFO & Treasurer
- Phone
- (301) 215-8500
- Website
- WWW.HHMI.ORG
- Return prepared by
- PWC US TAX LLP
Mission
THE MISSION OF THE INSTITUTE HAS REMAINED CONSTANT SINCE ITS FOUNDING IN 1953. AS ITS RESTATED ARTICLES OF INCORPORATION STATE THE PRIMARY PURPOSE AND OBJECTIVE OF THE HOWARD HUGHES MEDICAL INSTITUTE SHALL BE THE PROMOTION OF HUMAN KNOWLEDGE BY CONDUCTING DISCOVERY RESEARCH AND SCIENCE EDUCATION, PRINCIPALLY WITHIN FIELDS ASSOCIATED WITH BASIC BIOMEDICAL SCIENCES, AND THE DISSEMINATION AND APPLICATION OF THAT KNOWLEDGE FOR THE BENEFIT OF HUMANITY.
Program accomplishments
- MEDICAL RESEARCH ORGANIZATION ACTIVITIES THE HHMI INVESTIGATOR PROGRAM THE HOWARD HUGHES MEDICAL INSTITUTE'S APPROACH TO BIOMEDICAL RESEARCH CAN BE SUMMARIZED IN THREE WORDS: PEOPLE, NOT PROJECTS. THIS COMMITMENT IS REFLECTED IN THE HHMI INVESTIGATOR PROGRAM. RATHER THAN AWARDING RESEARCH GRANTS, THIS PROGRAM EMPLOYS SCIENTISTS,PROVIDING THEM WITH LONG-TERM, FLEXIBLE FUNDING THAT THEY MAY USE TO PURSUE THEIR SCIENTIFIC INTERESTS. HHMI BELIEVES THAT SCIENTISTS OF EXCEPTIONAL TALENT AND IMAGINATION WILL MAKE FUNDAMENTAL DISCOVERIES OF LASTING SCIENTIFIC VALUE ANDTHATBENEFITHUMAN HEALTHIF THEY ARE GIVEN THE RESOURCES, TIME, AND FREEDOM TO PURSUE CHALLENGING QUESTIONS. HHMI INVESTIGATORS RECEIVE A SEVEN-YEAR APPOINTMENT, WHICH ISRENEWABLEPENDING FAVORABLE SCIENTIFIC REVIEW. AMONG THE MORE THAN265 CURRENT HHMI INVESTIGATORS, 16 ARENOBEL LAUREATES ANDNEARLY150AREMEMBERS OF THE NATIONAL ACADEMY OF SCIENCES. HHMI INVESTIGATORS DIRECT HHMI RESEARCH LABORATORIESLOCATEDON THE CAMPUSES OFMORE THAN 55HOSPITALS,UNIVERSITIES,AND OTHER RESEARCHINSTITUTIONSTHROUGHOUT THE UNITED STATES. SINCE THE EARLY 1990S, INVESTIGATORS HAVE BEEN SELECTED THROUGH RIGOROUS NATIONAL COMPETITIONS. THE INSTITUTESOLICITSAPPLICATIONS DIRECTLY FROM SCIENTISTS AT RESEARCH INSTITUTIONS IN THE UNITED STATES, WITH THE AIM OFIDENTIFYINGTHOSE WHO HAVE THE POTENTIAL TO MAKE SIGNIFICANT CONTRIBUTIONS TO SCIENCE. HHMI EMPLOYS AN OPEN APPLICATION PROCESS TO ENSURE THAT IT SELECTS ITS RESEARCHERS FROM A BROAD AND DEEP POOL OF SCIENTIFIC TALENT. JANELIA RESEARCH CAMPUS HHMI'S JANELIA RESEARCH CAMPUS IN ASHBURN, VIRGINIA, INNOVATES RESEARCH PRACTICES, TOOLS, AND TECHNOLOGIES TO SOLVE BIOLOGY'S DEEPEST MYSTERIES. AT JANELIA, INTEGRATED TEAMS OF LAB SCIENTISTS AND TOOL-BUILDERS PURSUE A SMALL NUMBER OF KEY SCIENTIFIC QUESTIONS WITH THE POTENTIAL FOR TRANSFORMATIVE IMPACT. TO DRIVE SCIENCE, THESE DISCOVERIES ARE SHARED OPENLY WITH THE SCIENTIFIC COMMUNITY. IN FY24, HHMI ANNOUNCED AI@HHMI, A 10-YEAR, $500 MILLION INVESTMENT TO SUPPORT AI-DRIVEN PROJECTS AND EMBED AI SYSTEMS THROUGHOUT EVERY STAGE OF THE SCIENTIFIC PROCESS. IN FY25, THE INSTITUTE ANNOUNCED SIX AMBITIOUS AI PROJECTS SPEARHEADED BY BOTH HHMI INVESTIGATORS AND JANELIA GROUP LEADERS. IN THE CURRENT FISCAL YEAR, THERE WERE27GROUP LEADERS,16SENIOR GROUP LEADERS, AND8JANELIA SCHOLARS AT JANELIA, IN ADDITION TO GRADUATE STUDENTS, POSTDOCS, AND VISITING SCIENTISTS. JANELIA ALSO HOSTS A VIBRANT SCIENTIFIC CONFERENCE PROGRAM, WHICH BRINGS MANY SCIENTISTS TO ITS CAMPUS EACH YEAR FOR EDUCATIONAL MEETINGS. THE FREEMAN HRABOWSKI SCHOLARS PROGRAM THE FREEMAN HRABOWSKI SCHOLARS PROGRAM SUPPORTS OUTSTANDING EARLY CAREER BASIC RESEARCHERS WHO HAVE STRONG POTENTIAL TO BECOME LEADERS IN THEIR FIELDS. SCHOLARS PRIORITIZE SCIENTIFIC EXCELLENCE IN THEIR OWN RESEARCH WHILE CREATING LAB CLIMATES IN WHICH EVERYONE CAN THRIVE. LIKE HHMI INVESTIGATORS, SCHOLARS ARE EMPLOYEES OF THE INSTITUTEBASED AT HOSPITALS, UNIVERSITIES, AND OTHER RESEARCH INSTITUTES IN THE UNITED STATES,ANDAREPROVIDED WITH LONG-TERM, FLEXIBLE FUNDING TO PURSUE THEIR BOLDEST IDEAS. EACH SCHOLAR IS APPOINTED FOR UP TO TWO FIVE-YEAR TERMS. INTHE SUMMER OF 2025, HHMI ANNOUNCED ITS SECOND COHORT OF FREEMAN HRABOWSKI SCHOLARS: 30 EXCEPTIONAL SCIENTISTS FROM 23 U.S. RESEARCH INSTITUTIONS. ONCE APPOINTED, THEY WILL JOIN THE 31 INAUGURAL FREEMAN HRABOWSKI SCHOLARS.THE PROGRAM IS NAMED AFTER FREEMAN A. HRABOWSKI III, PRESIDENT EMERITUS OF THE UNIVERSITY OF MARYLAND, BALTIMORE COUNTY.Expenses $832,476,143 · grants $184,008 · revenue $4,559,258
- SCIENCE EDUCATION, FELLOWSHIPS, AND MEDIA PROGRAMS THROUGH ITS SCIENCE EDUCATION, FELLOWSHIPS, AND MEDIA PROGRAMS, HHMI INVESTS IN INDIVIDUALS, INITIATIVES, AND MEDIA THAT ADVANCE LEARNING AND PROMOTE SUCCESS IN SCIENCE ACROSS EDUCATIONAL AND CAREER STAGES. SCIENCE EDUCATION PROGRAMS INFY25,HHMIREFOCUSEDITSSCIENCE EDUCATION EFFORTSAROUND STUDENT-CENTEREDINITIATIVES.DURING THE 2024-2025 ACADEMIC YEAR, THESCIENCE EDUCATION ALLIANCE (SEA)PROGRAMSUPPORTED7,779 STUDENTS TOPARTICIPATEINSEA-PHAGES, A TWO-SEMESTERDISCOVERY BASEDCOURSETHATIMMERSES STUDENTS IN HANDS-ONSCIENTIFICRESEARCH.BIOINTERACTIVE, A MULTIMEDIA RESOURCE FOR HIGH SCHOOL AND COLLEGE-LEVEL INTRODUCTORY BIOLOGY,CONTINUED TO PROVIDE HIGH-QUALITY EDUCATIONAL MATERIALSAND PROFESSIONAL DEVELOPMENT WORKSHOPSAT NO CHARGETO BIOLOGY INSTRUCTORS THROUGHOUT THE COUNTRY, REACHINGMORE THAN 70% OF HIGH SCHOOL AND COLLEGE BIOLOGY CLASSROOMS.HHMIALSOANNOUNCEDA NEW PROGRAM CALLEDSUCCESS IN SCIENCE,WHICHPROVIDES GRANTSTO12INSTITUTIONSFOR IMPLEMENTINGPROGRAMSDESIGNED TOINCREASE UNDERGRADUATE PERSISTENCE IN SCIENCE. FELLOWSHIP PROGRAMS FOUNDED IN 2004, THE GILLIAM FELLOWS PROGRAM SUPPORTSEXCEPTIONALBIOMEDICAL PHD STUDENTS AND THEIR ADVISORSTO ADVANCECUTTING-EDGERESEARCHAND FOSTER THE DEVELOPMENT OF INCLUSIVE SCIENTIFIC TRAINING ENVIRONMENTS. IN FY25, 30 GRADUATE STUDENTS WERE SELECTED,REPRESENTING23 DIFFERENT INSTITUTIONS ACROSS THE US.SINCE 2017,THE HANNA H. GRAY FELLOWS PROGRAMHASSUPPORTEDOUTSTANDINGPOSTDOCS AS THEY TRANSITION INTO THEIR FIRST FACULTY POSITION.THE INSTITUTEWELCOMED25POSTDOCSIN FY25 AS MEMBERS OF THE NEWESTCOHORT.IN MAY,HHMITEMPORARILYPAUSEDCOMPETITIONSFORBOTHPROGRAMSIN ORDER TODEVOTEADDITIONALRESOURCES TO CURRENT HHMI SCIENTISTS. TANGLED BANK STUDIOS TANGLEDBANK STUDIOS, LLC, CAPTURES COMPELLING STORIES ACROSS ALL BRANCHES OF SCIENTIFIC DISCOVERY. IN FY25, TANGLED BANK RELEASED 23 DOCUMENTARY FEATURES AND SHORTS, WHICH RECEIVED A RANGE OF AWARDS, INCLUDING THE 2025 SCIENCE & TECHNOLOGY DOCUMENTARY EMMY AWARD FOR THE "HUNT FOR THE OLDEST DNA," FIVE GIANT SCREEN CINEMA ASSOCIATION AWARDS FOR "BLUE WHALES: RETURN OF THE GIANTS, THE GRAND TETON AWARD AT THE JACKSON WILD MEDIA AWARDS FOR "TURTLE WALKER." THE STUDIO ALSO LAUNCHED THESCIENCE@MYLIBRARYIMPACT INITIATIVE, WHICH BRINGS LOCAL SCIENCE STORIES AND ACTIVITIES TO MORE THAN 250 PUBLIC LIBRARIES AROUND THE COUNTRY.Expenses $112,031,924 · grants $63,135,224 · revenue $49,474
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 59-0735717
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Hospital or medical research organization
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1957
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Medical research (H920)
- Assets (IRS master file)
- $29,497,763,012
- Income (IRS master file)
- $20,140,663,337
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | $2,004,784,057 | $1,178,202,544 | $29,497,763,012 | XML |
| 990-T | August 2025 | – | – | – | IRS |
| 990 | August 2024 | $1,760,221,928 | $1,152,447,870 | $27,296,895,597 | XML |
| 990-T | August 2024 | – | – | – | IRS |
| 990 | August 2023 | $749,022,788 | $1,147,090,579 | $25,892,499,538 | XML |
| 990-T | August 2023 | – | – | – | IRS |
| 990 | August 2022 | $2,117,477,557 | $986,289,955 | $25,877,392,654 | IRS |
| 990-T | August 2022 | – | – | – | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990-T | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 2019 | – | – | – | IRS |
| 990 | August 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 59-0735717).
Questions about HOWARD HUGHES MEDICAL INSTITUTE
- What is the EIN of HOWARD HUGHES MEDICAL INSTITUTE?
- The employer identification number (EIN) of HOWARD HUGHES MEDICAL INSTITUTE is 59-0735717.
- Is HOWARD HUGHES MEDICAL INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1957.
- Are donations to HOWARD HUGHES MEDICAL INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does HOWARD HUGHES MEDICAL INSTITUTE file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of HOWARD HUGHES MEDICAL INSTITUTE due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did HOWARD HUGHES MEDICAL INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of HOWARD HUGHES MEDICAL INSTITUTE?
- The 990 for the year ended August 31, 2025 names Erin O'Shea.
- Who are the officers and directors of HOWARD HUGHES MEDICAL INSTITUTE?
- The 990 for the year ended August 31, 2025 lists 34 people; 34 received compensation from the organization, the highest $1,928,020 (DONALD KOCH, VP & CHIEF INVESTMENT OFFICER).
- How much revenue does HOWARD HUGHES MEDICAL INSTITUTE have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $2,004,784,057, expenses of $1,178,202,544 and total assets of $29,497,763,012 at year end.
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