EntityWire

EntityWire / EIN 27-5414423

Employer with a benefit plan

ANNEXON, INC.

EIN 27-5414423. 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 2026-08-13.

Employer with a benefit plan ยท SEC filer

ANNEXON, INC.

1400 SIERRA POINT PKWY, BUILDING C, BRISBANE, CA 94005

EIN

27-5414423

SEC CIK

0001528115

SEC · 2026-08-13

Industry (SIC)

Pharmaceutical Preparations (2834)

SEC · 2026-08-13

State of incorporation

DE

SEC · 2026-08-13

Ticker

ANNX

SEC · 2026-08-13

Latest SEC filing

144 2026-08-13

SEC · 2026-08-13

Benefit plan 1, 2024 filing

ANNEXON BIOSCIENCES 401(K) RETIREMENT PLAN

DOL · 2025-07-31

Participants (start of year)

108

DOL · 2025-07-31

Plan features

code 2F2E2G2J2K2T3D

DOL · 2025-07-31

Plan type

Single-employer plan

DOL · 2025-07-31

Business code (NAICS)

541700

DOL · 2025-07-31

Benefit plan 1, 2023 filing

ANNEXON BIOSCIENCES 401(K) RETIREMENT PLAN

DOL · 2024-07-25

Participants (start of year)

107

DOL · 2024-07-25

Plan features

code 2F2E2G2J2K2T3D

DOL · 2024-07-25

Plan type

Single-employer plan

DOL · 2024-07-25

From DOL Form 5500 filings (EFAST2) · SEC EDGAR company filings. Latest record 2026-08-13.

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