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Annexon Inc. NasdaqGS:ANNX Annexon, Inc., a clinical-stage biopharmaceutical company, discovers and develops medicines for treating inflammatory-related diseases. The company's lead candidate is ANX005, an investigational full-length monoclonal antibody, which is in Phase 3 clinical trial for the treatment of patients with guillain-barré syndrome; completed Phase II clinical trial for treating Huntington's disease; and in Phase 2a clinical trial for the treatment of amyotrophic lateral sclerosis. The company is also developing ANX007, an antigen-binding fragment (Fab) that is in Phase 3 program for the treatment of patients with geographic atrophy; and ANX1502, a novel oral small molecule inhibitor, which is in Phase 1 clinical trials for autoimmune indications. In addition, it develops ANX009, a C1q-blocking Fab that is in Phase I clinical trial for treating patients with lupus nephritis. The company was incorporated in 2011 and is headquartered in Brisbane, California.

Location: 1400 Sierra Point Parkway, Brisbane, CA, 94005, United States | Website: https://www.annexonbio.com | Industry: Biotechnology | Sector: Healthcare

Market Cap

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52 Wk Range

$ - $

Previous Close

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Day Range

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Volume

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Avg Volume

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Enterprise Value

3.789M

Cash

263.7M

Avg Qtr Burn

-34.95M

Short % of Float

12.29%

Insider Ownership

0.57%

Institutional Own.

Qtr Updated

03/31/25

Drug Pipeline

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Drug & Indication	Stage & Event	Catalyst Date
Tanruprubart (ANX005) (IV) Details Guillian-Barre syndrome	BLA Submission	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ANX007 (IVT) Details Geographic atrophy	Phase 3 Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Tanruprubart (ANX005) (IV) Details Huntington's disease, Brain disease	Phase 3 Initiation	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Tanruprubart (ANX005) (IV) Details Amyotrophic lateral sclerosis, Neurodegenerative disease	Phase 2a Update	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ANX009 Details Lupus nephritis	Phase 1b Update	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ANX105 Details Autoimmune disease, Neurodegenerative disease	Phase 1 Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ANX1502 Details Cold agglutinin disease	Phase 1a Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ANX005 (IV) Details Warm autoimmune hemolytic anemia, Autoimmune disease	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.