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Rarerising

Public charity · Grantmaker Menomonee Falls, WI EIN: 85-3253125 Website

Deliver patient-centered, evidence-based research, incubate emerging rare disease entities on their journey, and explore novel solutions to positively impact rare disease communities.

Key facts about Rarerising

EIN
85-3253125
Latest 990 filing
Form 990, 2025
Total assets
$89,210

Data from IRS Form 990, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990 · View filing

Total Assets

$89K

-8.4% YoY

Revenue

$257K

+41.0% YoY

Expenses

$267K

+9.2% YoY

About Rarerising

Based on IRS filings

Rarerising is a public charity focused on Health, based in Menomonee Falls, WI. IRS filing data is available from 2022 through 2025. As of 2025, the organization holds $89K in total assets.

Focus Areas

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

States

Cities

Martinez

Giving Over Time

Total grant dollars and number of grants per year

$0$5K$10K$15K$20K0 grants2022 1 grant2023 1 grant2024 0 grants2025

From 2023 to 2024, annual grant giving ranged from $20K (2023) to $20K (2024). In 2024 it made 1 grant totaling $20K.

Grant Insights

How this funder distributes its grants

Grant Size Distribution

2 grants across all recorded years

2<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 2 grants of 2 (100%).

Giving History

Grant recipients and amounts by year

No grants recorded for 2025.

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
$0$200K$400K$600K2022 2023 2024 2025
Metric202520242023
Total Assets$89,210$97,406$157,839
Revenue$257,106$182,325$370,330
Expenses$267,084$244,571$276,872

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2023 (received by the IRS October 28, 2024)
  2. Updated Form 990 for fiscal year 2024 (received by the IRS June 19, 2025)
  3. Added Form 990 for fiscal year 2025 (received by the IRS May 18, 2026)

Leadership & Key People

Officers and directors from IRS filings

Rarerising is led by Kimberly K. Haugstad, CEO & Director on every filing since 2022; none of the 5 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Kimberly K. Haugstad

    CEO & Director

    On filings since 2022

    11 hrs/week

    No compensation reported

  • Fernando Sanchez

    Board Member

    On filings since 2023

    11 hrs/week

    No compensation reported

  • Gabriela Prudencio

    Board Member

    On filings since 2023

    11 hrs/week

    No compensation reported

  • Mousumi Bose

    Board Member

    On filings since 2023

    11 hrs/week

    No compensation reported

  • Kimberly Ramseur JD MPH

    Board Member

    On filings since 2024

    11 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2022–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Rarerising

How large is Rarerising?

Rarerising reported $89K in total assets on its 2025 IRS Form 990. Its revenue that year was $257K.

What is Rarerising?

Rarerising is a public charity focused on Health, based in Menomonee Falls, WI. It holds $89K in total assets as of 2025.

Where does Rarerising operate?

Rarerising has awarded grants in California.

What is Rarerising's EIN?

Rarerising's EIN (Employer Identification Number) is 85-3253125. IRS Form 990 filing data is available on this page for 2022–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

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