The Gordon and Marilyn Macklin
EIN 522205133Total Given 2016–2025
$20.1M
48 grants · $2.0M avg/year
based on 10 yrs of IRS 990-PF records on file
$1M+/yr
mid-tier
capacity
$250K
typical big bets · $100K–$574K
grant size
44%
supporter · 7/16 multi-year
repeat
$59.1M
Assets (2025)
16
Distinct Recipients
Focus Areas
Application Information
Accepts Unsolicited Proposals
No. Preselected Only
Phone
(301) 652-6700
Financial Trends
Giving Over Time
Total Assets Over Time
View financial data as table
| Year | Total Giving | Total Assets | Revenue | Grants |
|---|---|---|---|---|
| 2016 | $2.5M | $30.8M | $2.4M | 8 |
| 2017 | $3.3M | $35.6M | $1.6M | 8 |
| 2018 | $2.1M | $34.7M | $722K | 9 |
| 2020 | $2.0M | $37.3M | $712K | 7 |
| 2021 | $2.2M | $48.8M | $884K | 5 |
| 2023 | $3.1M | $39.8M | $809K | 6 |
| 2024 | $2.1M | $51.5M | $915K | 3 |
| 2025 | $2.8M | $59.1M | $2.8M | 2 |
Grant Size Distribution
Based on 48 grants on record
Minimum
$2K
25th Pctl
$100K
Median
$250K
Average
$418K
75th Pctl
$574K
Maximum
$2.2M
Geographic Distribution
Officers & Directors
Grants Awarded (48 total)
| Purpose | ||||
|---|---|---|---|---|
| Johns Hopkins Ataxia Center | Baltimore, MD | $2,223,000 | JOHNS HOPKINS UNIVERSITY - FUNDING OF JOHNS HOPKINS ATAXIA CENTER - 2026-2030 | 2025 |
| Johns Hopkins University | Baltimore, MD | $1,627,000 | ATAXIA CLINIC | 2020 |
| Rady Childrens Hospital Foundation | San Diego, CA | $1,401,500 | KAWASAKI DISEASE RESEARCH CHALLENGE GRANT | 2021 |
| Rady Childrens Hospital Foundation | San Diego, CA | $1,070,000 | KAWASAKI DISEASE RESEARCH, CONTINGENT MATCHING GRANT | 2016 |
| Rady Childrens Hospital Foundation | San Diego, CA | $1,000,000 | ENDOWED CHAIR IN KAWASAKI DISEASE CARE AND RESEARCH | 2024 |
| Rady Childrens Hospital Foundation | San Diego, CA | $1,000,000 | 50% OF ENDOWED CHAIR IN KAWASAKI DISEASE CARE AND RESEARCH | 2023 |
| Rady Childrens Hospital Foundation | San Diego, CA | $1,000,000 | 50% OF ENDOWED CHAIR IN KAWASAKI DISEASE CARE AND RESEARCH | 2023 |
| Rady Childrens Hospital Foundation | San Diego, CA | $862,224 | 3-YEAR KAWASAKI DISEASE RESEARCH CHALLENGE GRANT - CELL-FREE RNA SIGNATURES FOR DIAGNOSIS OF KAWASAKI DISEASE | 2024 |
| Rady Childrens Hospital Foundation | San Diego, CA | $830,000 | KAWASAKI DISEASE RESEARCH | 2016 |
| Johns Hopkins University | Baltimore, MD | $613,000 | ATAXIA CENTER | 2017 |
| The National Ataxia Foundation | Minneapolis, MN | $612,043 | 3-YEAR CHALLENGE ATAXIA RESEARCH GRANT FUNDING. MRI IMAGING FOR CLINICAL RESEARCH CONSORTIUM SPINAL CEREBELLAR ATAXIA | 2023 |
| Rady Childrens Hospital Foundation | San Diego, CA | $611,000 | KAWASAKI DISEASE RESEARCH | 2017 |
| Medstar National Rehabilitation Hospital | Washington, DC | $561,103 | 4-YEAR PEER MENTOR AND WELLNESS PROGRAM CHALLENGE GRANT FOR SPINAL CORD INJURED PATIENTS | 2025 |
| The National Ataxia Foundation | Minneapolis, MN | $473,250 | CLINICAL RESEARCH CONSORTIUM, CONTINGENT MATCHING GRANT | 2017 |
| Rady Childrens Hospital Foundation | San Diego, CA | $463,000 | KAWASAKI DISEASE RESEARCH | 2018 |
| Rady Childrens Hospital Foundation | San Diego, CA | $459,000 | KAWASAKI DISEASE RESEARCH, CONTINGENT MATCHING GRANT | 2017 |
| Johns Hopkins University | Baltimore, MD | $449,000 | ATAXIA CENTER | 2018 |
| Johns Hopkins University | Baltimore, MD | $449,000 | THE ATAXIA CENTER | 2017 |
| Medstar National Rehabiliation Hospital | Washington, DC | $431,053 | SPINAL CORD INJURY - PEER MENTOR AND WELLNESS PROGRAM CHALLENGE GRANT | 2021 |
| The National Ataxia Foundation | Minneapolis, MN | $315,500 | RESEARCH | 2018 |
| Johns Hopkins University | Baltimore, MD | $310,000 | ATAXIA CENTER | 2016 |
| Yale University | New Haven, CT | $300,000 | 3-YEAR CHALLENGE GRANT - COMPUTATIONAL GENOMICS IN KAWASAKI DISEASE | 2023 |
| Worldwide Orphans Foundation | New York, NY | $268,783 | CHALLENGE GRANT TO PROVIDE TRAUMA RELATED SERVICES | 2024 |
| Johns Hopkins University | Baltimore, MD | $250,000 | SPINAL FUSION LABORATORY | 2018 |
| Johns Hopkins University | Baltimore, MD | $250,000 | SPINAL FUSION RESEARCH, CONTINGENT MATCHING GRANT | 2018 |