Grants paid by William Townsend Porter Foundation C/O Hemenway & Barnes
EIN 04-2104293 · Boston, MA · Form 990-PF, Part XV
William Townsend Porter Foundation C/O Hemenway & Barnes of Boston, MA (EIN 04-2104293) reported 23 grants paid totaling $1,149,967 to 8 recipients in tax years 2019–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$1,149,967
23 grants
Recipients
8
distinct organizations
Tax years
2019–2025
7 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2019 | 3 | $149,300 | — |
| 2020 | 3 | $149,300 | — |
| 2021 | 2 | $126,500 | — |
| 2022 | 3 | $176,000 | — |
| 2023 | 3 | $166,000 | — |
| 2024 | 3 | $185,500 | — |
| 2025 | 6 | $197,367 | — |
Top recipients
The 8 recipients receiving the most from William Townsend Porter Foundation C/O Hemenway & Barnes, by grants paid, out of 8 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| The American Physiological Society 53-0204660 | C | Bethesda, MD | 7 | $816,500 | 2025 |
| Marine Biological Laboratory 04-2104690 | B | Woods Hole, MA | 6 | $190,000 | 2025 |
| Cold Springs Harbor Lab | U | Cold Spring Harbor, NY | 3 | $64,100 | 2021 |
| Cold Springs Harbor Laboratory 11-2013303 | C | Cold Spring Harbor, NY | 3 | $40,500 | 2024 |
| Meharry Medical College 62-0488046 | B | Nashville, TN | 1 | $10,000 | 2025 |
| University of Louisville Research Foundation 61-1029626 | B | Louisville, KY | 1 | $10,000 | 2025 |
| Indiana University 20-2804389 | C | Bloomington, IN | 1 | $9,871 | 2025 |
| The Board of Trustees of the Leland Stanford Junior University 94-1156365 | C | Redwood City, CA | 1 | $8,996 | 2025 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 23 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | American Physiological Society Bethesda, MD | C | $141,500 | paid | SUPPORT | 202502239349100725 |
| 2025 | Marine Biological Laboratory Woods Hole, MA | B | $17,000 | paid | SUPPORT | 202502239349100725 |
| 2025 | University of Louisville Research Foundation Louisville, KY | B | $10,000 | paid | SUPPORT | 202502239349100725 |
| 2025 | Meharry Medical College Nashville, TN | B | $10,000 | paid | SUPPORT | 202502239349100725 |
| 2025 | Indiana University Bloomington, IN | C | $9,871 | paid | SUPPORT | 202502239349100725 |
| 2025 | The Board of Trustees of the Leland Stanford Junior University Redwood City, CA | C | $8,996 | paid | SUPPORT | 202502239349100725 |
| 2024 | American Physiological Society Bethesda, MD | C | $155,000 | paid | SUPPORT | 202423479349100617 |
| 2024 | Marine Biological Laboratory Woods Hole, MA | B | $17,000 | paid | SUPPORT | 202423479349100617 |
| 2024 | Cold Springs Harbor Laboratory Cold Spring Harbor, NY | C | $13,500 | paid | SUPPORT | 202423479349100617 |
| 2023 | American Physiological Society Rockville, MD | B | $141,500 | paid | SUPPORT | 202313399349101111 |
| 2023 | Cold Springs Harbor Laboratory Cold Spring Harbor, NY | C | $13,500 | paid | SUPPORT | 202313399349101111 |
| 2023 | Marine Biological Laboratory Woods Hole, MA | B | $11,000 | paid | SUPPORT | 202313399349101111 |
| 2022 | The American Physiological Society Bethesda, MD | C | $141,500 | paid | SUPPORT | 202222159349101012 |
| 2022 | Marine Biological Laboratory Woods Hole, MA | B | $21,000 | paid | SUPPORT | 202222159349101012 |
| 2022 | Cold Springs Harbor Laboratory Cold Spring Harbor, NY | C | $13,500 | paid | SUPPORT | 202222159349101012 |
| 2021 | The American Physiological Society Bethesda, MD | C | $113,000 | paid | SUPPORT | 202133169349103478 |
| 2021 | Cold Springs Harbor Lab Cold Spring Harbor, NY | U | $13,500 | paid | SUPPORT | 202133169349103478 |
| 2020 | The American Physiological Society Bethesda, MD | C | $113,000 | paid | SUPPORT | 202042239349100114 |
| 2020 | Cold Springs Harbor Lab Cold Spring Harbor, NY | U | $25,300 | paid | SUPPORT | 202042239349100114 |
| 2020 | Marine Biological Laboratory Woods Hole, MA | B | $11,000 | paid | SUPPORT | 202042239349100114 |
| 2019 | Marine Biological Laboratory Woods Hole, MA | B | $113,000 | paid | SUPPORT | 201932219349100208 |
| 2019 | Cold Springs Harbor Lab Cold Spring Harbor, NY | U | $25,300 | paid | SUPPORT | 201932219349100208 |
| 2019 | The American Physiological Society Bethesda, MD | C | $11,000 | paid | SUPPORT | 201932219349100208 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-03-31 | not stated | 2024v5.2 | 202502239349100725 |
| 990PF | 2024 | 2024-03-31 | not stated | 2023v5.1 | 202423479349100617 |
| 990PF | 2023 | 2023-03-31 | not stated | 2022v5.0 | 202313399349101111 |
| 990PF | 2022 | 2022-03-31 | not stated | 2021v4.2 | 202222159349101012 |
| 990PF | 2021 | 2021-03-31 | not stated | 2020v4.1 | 202133169349103478 |
| 990PF | 2020 | 2020-03-31 | not stated | 2019v5.1 | 202042239349100114 |
| 990PF | 2019 | 2019-03-31 | not stated | 2018v3.1 | 201932219349100208 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/042104293.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.