HHMI Gilliam Fellowship: Eligibility & Award

The HHMI Gilliam Fellows Program is a fellowship awarded by the Howard Hughes Medical Institute (HHMI) that funds a PhD student and their faculty thesis advisor together, as a pair, rather than funding the student alone. It supports advanced graduate study in the basic biological and biomedical sciences and requires the advisor to complete a structured mentorship-development program alongside the student’s research training. That dual structure — student funding paired with a mentorship obligation for the advisor — is what distinguishes Gilliam from most individual predoctoral fellowships, including NIH’s F31.

HHMI established the Gilliam Fellowships in 2004 in honor of James H. Gilliam, Jr., a charter Trustee of the Institute and chair of its Audit and Compensation Committee, who was known for his work advancing diversity and inclusion in science and education. The program’s stated purpose has remained consistent since: supporting scientific excellence together with the development of inclusive mentorship and training environments in graduate biomedical science.

What the program actually funds

Gilliam is a paired award: HHMI selects a PhD student and their faculty thesis advisor together as a “Gilliam pair,” and both have obligations under the award. The student receives:

A multi-year stipend and cost-of-education allowance supporting up to three years of PhD research.
A discretionary allowance for professional development (conference travel, coursework, skills training).
An institutional allowance that offsets tuition, university-sponsored health insurance, and fees.

For the 2027 competition cycle, HHMI has published a total award value of $65,000 per year per fellow, broken down as a $50,000 annual stipend, a $5,000 discretionary allowance, and a $10,000 institutional allowance. Award figures are set by HHMI for each competition cycle and should be confirmed against the current year’s HHMI Gilliam Fellows Program page rather than assumed to carry over unchanged from year to year.

Students who complete their PhD and pursue an academic research career may also apply to continue as Gilliam Postdoc Fellows, a second phase (added as the program expanded into what HHMI now calls its PhD and Postdoc Transition Program) providing further years of mentored postdoctoral support. The PhD phase and postdoc phase are separate applications with separate eligibility windows, not an automatic continuation.

Eligibility: the student side

To apply, a student must generally be:

Enrolled in a PhD program in the basic biological or biomedical sciences (dual-degree students, such as MD-PhD or DVM-PhD candidates, are eligible) at an HHMI-eligible degree-granting institution in the United States.
In the second or third year of the PhD program as of the application deadline, with at least two full years of the program remaining after the award would begin.
Applying jointly with their PhD thesis advisor, who must formally participate in the application (not merely provide a letter of support).

Citizenship is not a restrictive eligibility criterion in the way it is for some federal fellowships: HHMI states that U.S. citizens, permanent residents, DACA recipients, and international students otherwise eligible to study and receive funding at their institution can apply. Students should still confirm the current cycle’s exact language, since eligibility criteria are revisited by HHMI each competition year.

Eligibility and obligations: the thesis advisor side

Because Gilliam funds a mentoring relationship as much as a research project, the advisor carries real, binding obligations, not just a nominal role:

The advisor and the student must be based at the same institution, or at institutions with a shared financial agreement permitting joint administration of the award.
The advisor is required to complete a year-long HHMI mentorship-development course as part of the award — this is a defining feature of the program, not an optional add-on.
Student and advisor jointly write part of the application, including a statement addressing how the pair will navigate conflict and communication over the course of the fellowship — an unusual requirement among grant/fellowship applications, and one that signals how seriously HHMI treats the mentoring relationship itself as a funded deliverable.

A research sponsor or research development office advising faculty on this program should flag the mentorship-course time commitment early: unlike a standard training-grant mentor role, this is a structured, ongoing HHMI-run program the advisor is expected to complete, not a one-time letter or form. Offices that already ask advisors to complete a mentoring agreement for other training awards should treat HHMI’s requirement as a separate, more substantial commitment, not something the same document satisfies. See also CASRAI’s guide to NIH mentoring plans and K-award mentorship requirements for how Gilliam’s advisor obligations compare to the mentored-award norms most research offices already administer.

Application components

Based on HHMI’s published applicant guidance, the student-facing application generally includes:

Responses to leadership prompts describing specific experiences that shaped the applicant’s commitment to advancing excellence and inclusion in science, what those experiences taught them about themselves as an emerging leader, and how they are putting those lessons into practice in their own research environment.
A career statement covering scientific and professional goals, the plan for pursuing them during the PhD (including the advisor’s role in that development), and how the fellowship specifically would support the applicant’s growth as a researcher and future scientific leader.
A joint statement, written together with the thesis advisor, on the conflict-resolution strategies the pair will use over the course of the fellowship.
Standard supporting materials (transcripts, letters, and institutional endorsement through the research/graduate school office, per each cycle’s specific instructions).

Because two of the core components are explicitly about mentorship practice and leadership in advancing inclusion, rather than a conventional research proposal alone, applicants coming from a standard NIH F-series or NSF GRFP application background should expect a different framing, not simply a shorter version of those applications.

Timeline and competitiveness

For the 2027 cohort, HHMI opened the application on September 1, 2026, with a close date of October 27, 2026 at 11:59 PM ET. Application windows shift slightly year to year, so institutions supporting applicants should confirm the current cycle’s dates directly on HHMI’s program page rather than reusing a prior year’s calendar.

The program is highly selective. Recent competition cycles have drawn several hundred applications nationally for a cohort HHMI describes in the several-dozen range of selected student-advisor pairs — cohort size has varied across years as the program itself has expanded (HHMI’s own program announcements in recent cycles have described cohorts as large as 50 new fellows in one year and around 30 pairs selected from over 800 applicants in another), so a research office quoting a specific acceptance rate to a prospective applicant should pull the current cycle’s own published numbers rather than an older figure.

How Gilliam fits among HHMI’s other early-career science programs

HHMI runs several distinct programs supporting different career stages, and “HHMI fellowship” as a search term can refer to any of them. Gilliam is specifically the PhD-student-plus-advisor program; it is not the same as:

HHMI Hanna Gray Fellows Program — supports early-career scientists transitioning from postdoctoral training into independent faculty positions, with an emphasis on scientists from backgrounds underrepresented in academic science.
HHMI Freeman Hrabowski Scholars Program — supports early-career faculty already running their own labs, with funding tied to building inclusive research and training environments.
HHMI Investigator Program — HHMI’s most senior and selective award, supporting already-established, typically tenured faculty at PhD-granting research institutions; it funds the person, not a specific project, for a renewable term.

A research administrator fielding a general “HHMI fellowship” question should first confirm which career stage the researcher is at — graduate student, postdoc-to-faculty transition, early-career faculty, or established faculty — since HHMI’s early-career and faculty programs have materially different eligibility, application structure, and funding models from Gilliam specifically. Gilliam’s explicit focus on diversity and inclusion in the training relationship also makes it a useful complement, not a substitute, to NIH mechanisms with a similar goal, such as the NIH Diversity Supplement.

Institutional administration notes

A few points matter specifically for the sponsored programs or graduate school office administering a Gilliam award, distinct from a standard federal training fellowship:

Because the award is made to a student-advisor pair rather than to the institution as a project grant, internal routing should confirm early who signs for the advisor’s mentorship-course commitment, since it is a real time obligation that a department chair or dean may need to account for in the advisor’s service load.
The institutional allowance is intended to offset tuition, university-sponsored health insurance, and fees — offices should confirm HHMI’s current-cycle rules on how any gap between that allowance and actual institutional costs is handled, since this varies by institution’s own graduate-funding policy.
Because eligible institutions and eligible fields (basic biological and biomedical sciences) are both defined by HHMI, not self-determined, a graduate school or department should verify current eligibility before advising a student to apply, rather than assuming a prior year’s eligibility still holds.

Frequently asked questions

Is the HHMI Gilliam Fellowship the same as an NIH fellowship?

No. Gilliam is a private foundation award from the Howard Hughes Medical Institute, entirely separate from NIH’s F-series fellowships (such as the F31). It is not subject to NIH’s NRSA payback or service requirements, and its application, review, and funding mechanics are HHMI’s own, not part of the federal grants system.

Can a student apply without their advisor’s participation?

No. The advisor is a required co-applicant, not an optional reference. Both the student’s and advisor’s participation, including the advisor’s mentorship-course commitment and the jointly written conflict-resolution statement, are required parts of the application.

What happens if the student changes thesis advisors during the fellowship term?

Because the award is structured around the specific student-advisor pair, a change in thesis advisor during the funding period is a significant change of circumstance that the fellowship institution should report to HHMI promptly, following the current award terms published for that cycle, rather than treated as a routine internal change.

Does Gilliam fund research costs, or only the student’s stipend?

Gilliam funds the student directly (stipend, discretionary allowance, institutional allowance) rather than functioning as a project or research grant to the lab. It is a training/career-development award, not a research-project mechanism, and should be planned for accordingly in a lab’s overall budget.

Is there a version of Gilliam for postdocs?

Yes, indirectly. PhD Fellows who complete the program and pursue an academic research career may apply separately to continue as Gilliam Postdoc Fellows under HHMI’s broader PhD and Postdoc Transition Program, but this is a distinct, later application, not an automatic extension of the PhD-phase award.