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Mount Sinai Health System: endowment and investment office
Mount Sinai Health System has a selected audited endowment balance of $811,784,000 at December 31, 2024. Mount Sinai Health System consolidated restricted endowment assets: $644,954,000 permanent endowment assets plus $166,830,000 accumulated restricted returns. The 2024 report adopts consolidated reporting and includes Icahn School of Medicine. Dated balance source
Key facts
- Public institution or system
- Mount Sinai Health System
- Legal filer in linked tax return
- THE MOUNT SINAI HOSPITAL
- Institution type
- hospital
- Location of filer
- New York, NY
- EIN
- 13-1624096
- Selected financial measure
- donor-restricted endowment including accumulated returns
- Closing value
- $811,784,000
- Actual fiscal period end
- December 31, 2024
- Compiled list position
- 18 of 541
Reporting entity and financial scope
Mount Sinai Health System consolidated restricted endowment assets: $644,954,000 permanent endowment assets plus $166,830,000 accumulated restricted returns. The 2024 report adopts consolidated reporting and includes Icahn School of Medicine. Entity and reporting scope
This figure follows the filer's endowment definition. It does not establish how much cash is available for general hospital operations. Endowment disclosure
Endowment size and annual history
| Fiscal period end | Endowment net assets, USD | Basis |
|---|---|---|
| 2023-12-31 | $766,220,000 | Consolidated audit |
| 2024-12-31 | $811,784,000 | Consolidated audit |
The reported endowment moved from $766,220,000 at December 31, 2023 to $811,784,000 at December 31, 2024. That is a rise of $45,564,000, or 5.95% of the earlier closing balance. This arithmetic describes the change in the reported fund size. Gifts and amounts spent can also change the balance, so the percentage is not an investment performance result. Annual balance evidence
The Form 990 uses a separate reporting boundary. Its own rolling history is shown below so the tax-filing series remains visible. A consolidated audit observation is not appended to the filer-only series as though it measured the same portfolio. Separate tax-filing history
| Fiscal period end | Filer Schedule D closing balance, USD |
|---|---|
| 2020-12-31 | $194,397,512 |
| 2021-12-31 | $281,194,048 |
| 2022-12-31 | $290,728,000 |
| 2023-12-31 | $261,040,000 |
| 2024-12-31 | $232,212,000 |
Reading the reported balances
The displayed 2-date series begins at $766,220,000 on December 31, 2023 and ends at $811,784,000 on December 31, 2024. Across those observations, the closing fund balance increased by $45,564,000. The smallest reported amount is $766,220,000 at December 31, 2023; the largest is $811,784,000 at December 31, 2024. Annual balance evidence
Both observations use the audited endowment boundary stated above. The December 31, 2023 comparison retains the earlier year's amount and its own measurement date. It gives a dated starting point for reading the later balance. Annual balance evidence
The separately displayed tax-filing endowment ends at $232,212,000 for December 31, 2024, under EIN 13-1624096. That tax record remains a separate series from the selected audit. The audit's consolidation boundary and financial-statement classifications determine the headline measure; the difference is not attributed to investment performance. Tax-filing entries
Endowment flows and spending
The restricted endowment roll-forward reports $18,345,000 appropriated for expenditure during 2024. The system describes a 4% spending rate based on three-year average fund values. Audited endowment note
For the tax period ending December 31, 2024, Schedule D begins with $261,040,000 in endowment. It records $25,262,117 in contributions. The earnings line is a dollar accounting amount. Calculating a time-weighted return would require information about the timing of external cash flows and the portfolio's return calculation. Schedule D roll-forward
The same Schedule D reports $54,090,117 for other expenditures for facilities and programs. These retain the tax form's labels. Their dollar amounts do not establish an annual spending policy based on average portfolio values. Disclosed endowment uses
Portfolio disclosure and investment oversight
Schedule D classifies the closing endowment as board-designated or quasi-endowment 59.62%, permanent endowment 40.38%, term endowment 0%. These percentages classify the legal restrictions on endowment funds. They do not describe investments in stocks, bonds or other asset classes. Restriction categories
Hospital finances and community benefit
The Form 990 for the period ending December 31, 2024 reports $5,887,180,821 in total assets, $4,653,204,635 in total revenue, $4,538,893,967 in total expenses. These are filer-wide figures. Total assets can include property, patient receivables and operating resources outside the endowment. Revenue and expenses describe annual activity; the endowment figure is a closing stock of assets. Tax-filing financial snapshot
No community-benefit dollar amount is assigned from this filer's available Schedule H fields. A hospital foundation can support care without operating a licensed hospital itself. Endowment expenditures therefore do not automatically equal the hospital's financial assistance or its total community-benefit expense. Filer financial record
The IRS explains that organizations operating tax-exempt hospital facilities face additional requirements under Section 501(r). Those requirements concern community health needs assessments, financial assistance, limits on charges and billing and collection. The rules apply at the facility level. IRS hospital requirements
Comparison with our compiled hospital list
Mount Sinai Health System is number 18 in our compiled list of 541 hospital-related endowment records. The entries below are nearby by selected dollar size. This is our own compilation of public disclosures. It is not a NACUBO peer group, a ranking of investment skill or a comparison of clinical outcomes. Full compiled list
| Reporting entity | Selected balance, USD | Fiscal end |
|---|---|---|
| Children's Hospital Los Angeles | $816,536,194 | 2025-06-30 |
| Boston Medical Center | $824,874,290 | 2025-09-30 |
| Houston Methodist Hospital | $793,833,291 | 2024-12-31 |
The institutions have different reporting dates and legal boundaries. Some records cover a system, while others cover an operating hospital or supporting foundation. Their investment pools can overlap. The table gives scale context only; its balances should not be added together as a national endowment total. Comparison evidence
Sources
Related profiles
- Children's Hospital Los Angeles (USD 816.5 million)
- Boston Medical Center (USD 824.9 million)
- Houston Methodist Hospital (USD 793.8 million)
- Seattle Children's (USD 887.2 million)
- City of Hope (USD 701.2 million)
- Johns Hopkins Health System (USD 692.7 million)
