EntityWire

EntityWire / EIN 81-4301284

Employer with a benefit plan

GENERATION BIO CO.

EIN 81-4301284. What DOL Form 5500 filings (EFAST2) and SEC EDGAR company filings say about this entity, with the source and date on every fact. Latest record 2026-05-14.

Employer with a benefit plan ยท SEC filer

GENERATION BIO CO.

301 BINNEY STREET, CAMBRIDGE, MA 02142

EIN

81-4301284

SEC CIK

0001733294

SEC · 2026-05-14

Industry (SIC)

Pharmaceutical Preparations (2834)

SEC · 2026-05-14

Latest SEC filing

SCHEDULE 13G/A 2026-05-14

SEC · 2026-05-14

Benefit plan 501, 2024 filing

GENERATION BIO CO. HEALTH AND WELFARE BENEFIT PLAN

DOL · 2025-09-11

Participants (start of year)

133

DOL · 2025-09-11

Plan features

code 4A4B4D4E4F4H4L4Q

DOL · 2025-09-11

Plan type

Single-employer plan

DOL · 2025-09-11

Business code (NAICS)

325410

DOL · 2025-09-11

Benefit plan 1, 2024 filing

GENERATION BIO 401(K) PLAN

DOL · 2025-07-22

Participants (start of year)

227

DOL · 2025-07-22

Plan features

code 2E2G2F2J2K2T3D

DOL · 2025-07-22

Plan type

Single-employer plan

DOL · 2025-07-22

Business code (NAICS)

325410

DOL · 2025-07-22

Benefit plan 501, 2023 filing

GENERATION BIO CO. HEALTH AND WELFARE BENEFIT PLAN

DOL · 2024-10-18

From DOL Form 5500 filings (EFAST2) · SEC EDGAR company filings. Latest record 2026-05-14.

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