Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Apr 1980.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
73 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
Something off? Claim to add context
Who runs it and what they're paid
41 people listed on the 990; $1.4M paid to officers and key staff.
Tatiana Toro’s $331K as Director is at the 33rd percentile of top reported officer pay among 139 $10–100M science & technology nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Tatiana Toro | $331,194 | $317,962 | $176,415 | — | — | — |
| Helene Barcelo | $244,389 | $306,008 | $315,947 | $293,194 | $289,215 | $268,468 |
| Annie Averitt | $232,388 | $231,725 | $241,646 | $223,308 | $207,566 | $201,632 |
| David Eisenbud | — | — | $214,237 | $175,185 | $181,450 | $134,476 |
| Aaron Hale | — | — | — | $203,951 | $196,035 | $187,395 |
| Stefanie Yurus | $178,750 | $176,246 | $176,732 | $151,145 | $148,765 | $144,599 |
| Demaur Owens | $148,207 | $147,321 | $145,679 | $120,433 | $105,410 | — |
| Arthur Bosse | $140,223 | $143,312 | $141,900 | $128,918 | $138,333 | $123,957 |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
See Simons Laufer Mathematical Sciences Institute executive salaries →On this list? Claim this org
Something off? Claim to add context
Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2Yes
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Fosters mathematical research by bringing together top scientists for creative collaboration.
Questions for Simons Laufer Mathematical Sciences Institute
Your first name shows with your question. Simons Laufer Mathematical Sciences Institute answers here, for everyone.
Know this org? Add your story
Scientific Programs
Msri conducts broadly-based research programs in the mathematical sciences and closely related fields. In any given year, msri conducts between two and four thematic research programs, each lasting either 5 months or 10 months.
Computing and Communication
Msri provides information technology (it) resources and services to its researchers and the broader math community worldwide. Msri maintains an it platform that features the most advanced mathematical software and that grants access to and supports virtual collaborative research amongst mathematicians at the institute.
Math and Society Programs
Msri sponsors a large number of programs and activities whose goal is to enhance k-12 mathematics education and the public understanding of and appreciation for mathematics. These include supporting mathematics related events for children (the bay area mathematics olympiad); critical issues in mathematics education (a forum for exchange…
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2021 990, line by line.
Download 990
| Line | Start FY21 | End FY21 |
|---|---|---|
| Cash and savingsLn 1–2 | $4.7M | $6.9M |
| InvestmentsLn 11–13 | $28.6M | $33.6M |
| Land, buildings, equipmentLn 10c | $7.0M | $6.6M |
| Total assetsLn 16 | $45.4M | $85.4M |
| LiabilitiesLn 26 | $449K | $667K |
| Net assetsLn 32 | $44.9M | $84.8M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic organizationsLn 1 | $18K | $18K | ||
| Grants to domestic individualsLn 2 | $1.1M | $1.1M | ||
| Grants and assistance to foreign recipientsLn 3 | $507K | $507K | ||
| Pay of current officers, directors and key staffLn 5 | $1.0M | $563K | $291K | $150K |
| Other salaries and wagesLn 7 | $1.9M | $1.0M | $542K | $280K |
| Pension plan contributionsLn 8 | $161K | $86K | $58K | $17K |
| Other employee benefitsLn 9 | $292K | $155K | $106K | $31K |
| Payroll taxesLn 10 | $187K | $101K | $63K | $23K |
| Legal feesLn 11b | $7K | $2K | $4K | $141 |
| Accounting feesLn 11c | $80K | $80K | ||
| Investment management feesLn 11f | $231K | $231K | ||
| Other fees for servicesLn 11g | $35K | $19K | $4K | $12K |
| Office expensesLn 13 | $109K | $78K | $13K | $18K |
| Information technologyLn 14 | $377K | $376K | $804 | |
| OccupancyLn 16 | $162K | $144K | $14K | $4K |
| TravelLn 17 | $12K | $1K | $164 | $11K |
| Depreciation, depletion and amortizationLn 22 | $678K | $601K | $66K | $11K |
| InsuranceLn 23 | $168K | $145K | $20K | $3K |
| Other expenses (24a–d)Ln 24 | $1.4M | $1.2M | $45K | $134K |
| All other expensesLn 24e | $30K | $21K | $9K | $670 |
| Total functional expensesLn 25 | $8.4M | $6.2M | $1.5M | $695K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $19.1M | $13.4M | $5.8M | $120.9M | 990 PDF |
| FY2024 | $22.5M | $14.2M | $8.3M | $110.1M | 990 PDF |
| FY2023 | $21.9M | $14.0M | $7.8M | $99.8M | 990 PDF |
| FY2022 | $21.4M | $13.3M | $8.1M | $89.2M | 990 PDF |
| FY2021 Viewing | $45.8M | $8.4M | $37.4M | $84.8M | 990 PDF |
| FY2020 | $9.3M | $10.6M | −$1.3M | $44.9M | 990 PDF |
More to add? Claim this org
Schedules filed Part IV
See the full FY2021 990 (6 parts)
Part I · Summary $45,786,463 revenue, 12 lines filed
Part VI · Governance 33 of 35 board members independent, 1 to look at
Part VIII · Statement of revenue $45,786,463 across 9 lines filed
Part IX · Statement of functional expenses $8,428,419 across 20 lines filed
Part X · Balance sheet $85,421,811 assets, 17 lines filed
Part XI · Reconciliation of net assets $84,754,469 net assets at year end
Form 990 e-file (XML) FY2021 from the IRS · Classification, formation year and address from the IRS Business Master File
Similar organizations you could support · Compare with another nonprofit
Names, privacy, and removal requests More
The names, titles, and compensation shown on this page are reproduced from IRS Form 990 filings, which are public records.
Philanthropy.org does not alter the content of those filings. All information appears exactly as reported by the filing organization for the tax year shown.
We publish only information contained in the public IRS filing — and less than the filing contains. Our profile pages do not display street addresses, telephone numbers, personal email addresses, or other personal contact information, even where the filing includes them.
Many people share the same name. A name shown on this page reflects only what one organization reported in one IRS filing for one tax year. It should not be interpreted as identifying any other individual with the same or a similar name.
If you are no longer affiliated with the organization, your name will generally stop appearing in future IRS filings once the organization no longer reports you. Pages for tax years in which you were reported remain published because those filings remain part of the public record.
Philanthropy.org does not alter or remove IRS filing records. Removing a page from this website would not remove the underlying IRS filing, which remains publicly available from the IRS and other publishers of the same information.
If you believe the IRS filing itself is inaccurate, corrections must be made by the filing organization or the IRS directly.
Your org? Add context
Made it to the end? Claim this org