Hemostasis and Thrombosis Research Society Inc
The Hemostasis and Thrombosis Research Society, inc. (HTRS) is the leading North American professional society dedicated to research, mentoring, workforce development, and continuing medical education for physicians, investigators, and all health care professionals interested in advancing care for people with hemostatic and thrombotic disorders.
Hemostasis and Thrombosis Research Society Inc at a glance
In short: Hemostasis and Thrombosis Research Society Inc gave $701K across 8 grants in 2024 (avg $88K), top state Massachusetts. Source: 2024 IRS Form 990.
- Annual giving (2024)
- $701,324
- -23.2% vs 2023
- Grants made (2024)
- 8
- -50.0% vs 2023
- Average grant
- $87,666
- +53.6% vs 2023
- Median grant
- $82,500
- Total assets
- $4,365,753
- +6.1% vs 2023
- Primary geography
- Massachusetts (21% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who Hemostasis and Thrombosis Research Society Inc funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2024
The largest 2024 recipient was Beth Israel Deaconess Medical Center Inc ($149K). Together the top 8 received $701K.
Grant Size Distribution
66 grants across all recorded years
The most common grant size was in the $50–100K range: 35 grants of 66 (53%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 8 itemized grants.
States
Cities
How Hemostasis and Thrombosis Research Society Inc gives
- Giving held roughly steady from 2021 to 2024 (+0%). Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $699K (2021) to $1.5M (2020). In 2024 it made 8 grants totaling $701K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Beth Israel Deaconess Medical Center Inc Boston, MA | Research | $148,500 |
| Rutgers the State University Sandyston, NJ | Research | $108,000 |
| The State University of Iowa Iowa City, IA | Research | $82,500 |
| Cleveland Clinic Foundation Independence, OH | Research | $82,500 |
| Oregon Health and Science University Portland, OR | Research | $82,500 |
| Johns Hopkins University Baltimore, MD | Research | $77,724 |
| The Regents of the University of California Oakland, CA | Research | $59,800 |
| University of Miami Coral Gables, FL | Research | $59,800 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2024 | $4,365,753 | $1,702,831 | $1,825,354 | $701,324 | 8 | $122,095 |
| 2023 | $4,113,604 | $2,668,617 | $2,549,675 | $913,351 | 16 | $85,940 |
| 2022 | $4,139,914 | $1,771,378 | $1,814,608 | $925,397 | 11 | $39,198 |
| 2021 | $4,175,317 | $1,582,781 | $1,761,702 | $698,948 | 13 | $35,262 |
| 2020 | $4,199,965 | $1,534,178 | $2,101,091 | $1,482,334 | 18 | $11,609 |
About Hemostasis and Thrombosis Research Society Inc
Based on IRS filings
Hemostasis and Thrombosis Research Society Inc is a public charity, based in Milwaukee, WI. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.4M in total assets. In 2024, it awarded 8 grants totaling $701K. Net investment income was $122K.
Leadership & Key People
Officers and directors from IRS filings
Hemostasis and Thrombosis Research Society Inc is led by Lorilyn Jacobsen-Tews, Executive Director on every filing since 2020; 3 of 16 officers listed in 2024 are compensated.
Officers on the 2024 filing
Lorilyn Jacobsen-Tews
Executive Director
On filings since 2020
40 hrs/week
$99K (2020) → $123K (2024)
Jordan Shavit MD PhD
President
Director → Vice President & President Elect, 2022
Vice President & President Elect → President, 2024
On filings since 2020
12 hrs/week
No compensation reported
Benjamin Samelson Jones MD PhD
Director
New on the 2024 filing
2 hrs/week
$1K (2024)
Lauren Amos Md Ms
Director
New on the 2024 filing
2 hrs/week
$1K (2024)
Alisa S. Wolberg PhD
Director
On filings since 2020
2 hrs/week
No compensation reported
Adam Cuker Md Ms
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Anandi Krishnan PhD
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Joshua Muia PhD
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Riten Kumar Md Msc
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Robert Flaumenhaft MD PhD
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Shruti Chaturvedi Mbbs Msci
Director
New on the 2024 filing
2 hrs/week
No compensation reported
Lynn Malec Md Msc
Treasurer
On filings since 2020
8 hrs/week
No compensation reported
Shannon Meeks MD MBA
Immediate Past President
Vice President & President Elect → President, 2022
President → Immediate Past President, 2024
On filings since 2020
4 hrs/week
No compensation reported
Allison Wheeler Md Msci
Vice President & President Elect
New on the 2024 filing
8 hrs/week
No compensation reported
Bryce Kerlin Md Faap
Research & Awards Officer
New on the 2024 filing
8 hrs/week
No compensation reported
Ming Lim Mbbch Ms
Education Officer
New on the 2024 filing
8 hrs/week
No compensation reported
Former officers (18)
- Former: Alan Mast MD PhD (2020–2023) — Director
- Former: Brian Branchford MD (2020–2023) — Director
- Former: Bryce Kerlin MD (2020–2023) — Research & Awards Officer
- Former: Deborah Siegal Md Msc Frcpc (2020–2023) — Director
- Former: Gowthami Arepally MD (2020–2023) — Director
- Former: Mary Cushman Md Msc (2020–2023) — Director
- Former: Shannon Carpenter Md Ms (2020–2023) — Immediate Past President
- Former: Wolfgang Bergmeier PhD (2020–2023) — Director
- Former: Ayesha Zia Md Mscr (2021–2023) — Director
- Former: Ming Lim Mbbchir Mscr (2021–2023) — Director
- Former: Arash Mahajerin Md Mscr (2022–2023) — Education Officer
- Former: A. Koneti Rao Md Facp Faha (2020–2022) — Secretary
- Former: Rebecca Kruse-Jarres MD MPH (2020–2022) — Immediate Past President
- Former: Margaret Ragni MD MPH (2020–2021) — Director
- Former: Barbara Furie PhD (2020) — Director
- Former: Cindy Leissinger MD (2020) — Immediate Past President
- Former: Leonardo Brandao Md Msc (2020) — Director
- Former: Rodney Camire PhD (2020) — Secretary
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $123K, to Lorilyn Jacobsen-Tews (Executive Director). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Hemostasis and Thrombosis Research Society Inc
How much does Hemostasis and Thrombosis Research Society Inc give each year?
Hemostasis and Thrombosis Research Society Inc gave $701K across 8 grants in 2024, according to its 2024 IRS Form 990. In 2023 it gave $913K across 16 grants.
What is Hemostasis and Thrombosis Research Society Inc's typical grant size?
Hemostasis and Thrombosis Research Society Inc's median grant in 2024 was $82,500, and its average grant was $87,666, across 8 grants on its 2024 IRS Form 990.
Where does Hemostasis and Thrombosis Research Society Inc give grants?
Hemostasis and Thrombosis Research Society Inc's top state is Massachusetts, with 21% of the grant dollars itemized on its 2024 IRS Form 990. The next largest states were New Jersey (15%) and Iowa (12%).
Does Hemostasis and Thrombosis Research Society Inc give general operating support?
Not in 2024: none of the 8 grants with a stated purpose on Hemostasis and Thrombosis Research Society Inc's 2024 IRS Form 990 were described as general or operating support. Recurring purposes include "Research" (8 grants).
Who are Hemostasis and Thrombosis Research Society Inc's largest grantees?
Hemostasis and Thrombosis Research Society Inc's largest 2024 grantees include Beth Israel Deaconess Medical Center Inc ($148,500), Rutgers the State University ($108,000) and The State University of Iowa ($82,500), according to its 2024 IRS Form 990. Together they received 48% of its itemized 2024 grant dollars.
How large is Hemostasis and Thrombosis Research Society Inc?
Hemostasis and Thrombosis Research Society Inc reported $4.4M in total assets on its 2024 IRS Form 990. Its revenue that year was $1.7M.
What is Hemostasis and Thrombosis Research Society Inc's EIN?
Hemostasis and Thrombosis Research Society Inc's EIN (Employer Identification Number) is 39-1796672. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS September 21, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS November 3, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS September 6, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS August 30, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS November 17, 2025)
- IRS filings on file for fiscal years 2020–2024
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