· Public charity
Musculoskeletal Tumor Society
The mission of the MUSCULOSKELETAL TUMOR SOCIETY is to advance the science of orthopaedic oncology and to promote high standards of patient care.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
The 3 grants below total $170,000 — the rows itemised in this filing. The $198,137 headline is the total grant expense reported on the return, so the remaining $28,137 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2024
- $10k–50k2 grants · $70k
- $50k–250k1 grant · $100k
| Recipient | Amount |
|---|---|
| DUKE UNIVERSITY | $100,000 |
| MAYO CLINIC | $45,000 |
| CLEVELAND CLINIC FOUNDATION | $25,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 16%, against an area that typically sits at 13%. 77% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +14% since the first grant, against +4% for the ones you funded once.
6 repeat relationships — 1 still active in FY2024, 5 since wound down; 1 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 80% of grant dollars renewed an existing relationship; $25k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
DUKE UNIVERSITY3× · 2022–2024 · $150k · revenue +3%- AAAMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS2× · 2017–2018 · $62k · revenue +14%
- WVWEST VIRGINIA UNIVERSITY RESEARCH CORPORATION2× · 2019–2020 · $50k · revenue +34%
Funded once
- OROrthopaedic Research and Education Foundationone grant, 2017 · $100k · revenue -23%
- AEALBERT EINSTEIN COLLEGE OF MEDICINE INCone grant, 2017 · $100k
- UOUNIVERSITY OF CALIFORNIA DAVISone grant, 2022 · $25k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The mission of Rush is to improve the health of the individuals and diverse communities we serve through the integration of outstanding patient care, education, research and community partnerships.
Emory University's mission is to create, preserve, teach, and apply knowledge in the service of humanity. (See Schedule O for continuation)
University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
The rockefeller university (the university) is a world renowned center for research and graduate education in the biomedical sciences, chemistry, bioinformatics, and physics. the university's 73 laboratories conduct both clinical and basic…
Education, research, medical services and other public services.
Support of subsidiary tax-exempt healthcare, education and research organizations (see schedule o)
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
Thomas jefferson university ("tju") is a comprehensive university with preeminence in transdisciplinary, experiential professional education, research and discovery, delivering exceptional value for the 21st century students with…
The mission of hospital for special surgery is to provide the highest quality patient care, improve mobility, and enhance the quality of life for all and to advance the science of orthopedic surgery, rheumatology, and their related…
Healthcare, education, and research
For reference, the grantee most central to the portfolio’s shape is Memorial Sloan-Kettering Cancer Center and the most unlike its peers is Albert Einstein College of Medicine Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
10 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 10 of the 12 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds DUKE UNIVERSITY ↗
- Who funds Orthopaedic Research and Education Foundation ↗
- Who funds ALBERT EINSTEIN COLLEGE OF MEDICINE INC ↗
- Who funds AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS ↗
- Who funds WEST VIRGINIA UNIVERSITY RESEARCH CORPORATION ↗
- Who funds MAYO CLINIC ↗
- Who funds THE CLEVELAND CLINIC FOUNDATION ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Johns Hopkins University · The Trustees of Columbia University in the City of New York · Fidelity Investments Charitable Gift Fund
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Musculoskeletal Tumor Society funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Musculoskeletal Tumor Society?
Find your warmest path to Musculoskeletal Tumor Society through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.