EntityWire/Massachusetts business entity search →/KEROS THERAPEUTICS
Employer with a benefit plan
KEROS THERAPEUTICS
The Employer Identification Number (EIN) for KEROS THERAPEUTICS is 81-1173868.
At a glance
- EIN
- 81-1173868 · 811173868
- Legal name
- KEROS THERAPEUTICS
- Address on file
- 1050 WALTHAM ST, LEXINGTON, MA 02421
- Records show
- SEC filer; employer with a benefit plan
- Latest record
- 2026-08-20
SEC records
SEC EDGAR company filings · records as of 2026-08-20
- SEC CIK
- 0001664710
- Source: SEC · as of 2026-08-20
- Industry (SIC)
- Pharmaceutical Preparations (2834)
- Source: SEC · as of 2026-08-20
- Ticker
- KROS
- Source: SEC · as of 2026-08-20
- Latest SEC filing
- 4 2026-08-20
- Source: SEC · as of 2026-08-20
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2026-01-27
- Benefit plan 501, 2024 filing
- KEROS THERAPEUTICS, INC. EMPLOYEE BENEFITS PLAN
- Source: DOL 5500 · as of 2026-01-27
- Participants (start of year)
- 150
- Source: DOL 5500 · as of 2026-01-27
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision; Long-term disability; Other
- Source: DOL 5500 · as of 2026-01-27
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2026-01-27
- Business code (NAICS)
- 541700
- Source: DOL 5500 · as of 2026-01-27
- Benefit plan 1, 2024 filing
- KEROS THERAPEUTICS
- Source: DOL 5500 · as of 2025-10-15
- Participants (start of year)
- 160
- Source: DOL 5500 · as of 2025-10-15
- Plan features
- Profit-sharing; ERISA 404(c) plan; Participant-directed; 401(k) feature; 401(m) matching; Automatic enrollment
- Source: DOL 5500 · as of 2025-10-15
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2025-10-15
- Business code (NAICS)
- 541700
- Source: DOL 5500 · as of 2025-10-15
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2), DOL Form 5500-SF filings (EFAST2) and SEC EDGAR company filings), shown as filed. Nothing is scraped from the IRS, and a public-record match is not IRS TIN validation.
What it is not
Registry status, formation date, and registered agent come from the Secretary of the Commonwealth, Corporations Division; see the Massachusetts business entity search.
If something is wrong
A name, address, or classification here is what the source published. To correct the source, file with it; to have this page removed, see corrections and removal.
Other Massachusetts businesses on file
- TSCAN THERAPEUTICS INC.EIN 82-5282075
- MICRON SOLUTIONS, INC.EIN 72-0925679
- ENTRADA THERAPEUTICS, INC.EIN 81-3983399
- DYNE THERAPEUTICS INCEIN 36-4883909
- AWARE, INC.EIN 04-2911026
- ALLOVIR INC.EIN 83-1971007
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