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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 25-1320493

HIGHMARK HEALTH

Also known as ALLEGHENY-SINGER RESEARCH INSTITUTE

Tax-exempt · PITTSBURGH, PA 15222

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990T on file
2023December 31, 2023May 15, 2024990T on file

File the 2025 990-EZ for HIGHMARK HEALTH

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
25-1320493
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
2015
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E21)
Group exemption
6169: HIGHMARK HEALTH

Filing history

FormYear endedRevenueExpensesAssets
990TDecember 2024–––
990TDecember 2023–––
990TDecember 2022–––
990TDecember 2021–––
990TDecember 2020–––

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF: e-filed returns processed since 2019; amounts from the IRS Statistics of Income extracts where available.

Other organizations in PITTSBURGH