{"filing":{"accession_number":"0001193125-26-326199","cik":"0001528115","ticker":"ANNX","company_name":"Annexon, Inc.","form":"8-K","filing_date":"2026-07-30","report_date":"2026-07-30","primary_document":"d113783d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1528115/000119312526326199/d113783d8k.htm"},"events":[{"id":22210,"run_id":20080,"accession_number":"0001193125-26-326199","anchor_item_number":"2.03","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"Annexon entered into a Loan and Security Agreement with Oxford Finance LLC providing for term loans in an aggregate principal amount of up to $200 million, with an initial $50 million tranche funded on July 30, 2026, and an additional $100 million available upon achievement of certain milestones. The facility carries an interest rate of SOFR + 4.6% (floor 7.60%), matures in 2031–2032 depending on milestones, and is secured by substantially all of the company's assets.","company_name":"Annexon, Inc.","ticker":"ANNX","filing_date":"2026-07-30","form":"8-K","submitted_at":null,"items":[{"id":22084,"accession_number":"0001193125-26-326199","item_number":"1.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a Loan and Security Agreement with Oxford Finance LLC providing for term loans in an aggregate principal amount of up to $200 million, with an initial $50 million tranche funded on July 30, 2026. This is a material creation of a new direct financial obligation—a senior secured debt facility—distinct from covenant breach or other debt-related events. The filing explicitly discloses the interest rate (SOFR + 4.6%, floor 7.60%), maturity dates (2031–2032 depending on milestones), repayment terms, and security interest in substantially all assets, all hallmarks of a material debt issuance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"","ticker":null,"filing_date":""},{"id":22085,"accession_number":"0001193125-26-326199","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a strategic credit facility agreement with Oxford Finance for up to $200 million, with an initial $50 million drawn at closing. This creates a new direct financial obligation—a senior secured loan facility—which is the core disclosure required under Item 2.03. The facility is material to the company's capital structure and financial position, particularly as a non-dilutive financing source to fund clinical development of vonaprument and tanruprubart.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"","ticker":null,"filing_date":""},{"id":22086,"accession_number":"0001193125-26-326199","item_number":"8.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a strategic credit facility agreement with Oxford Finance for up to $200 million, with an initial $50 million drawn at closing and an additional $100 million available upon achievement of certain milestones. This constitutes creation of a new direct financial obligation—a senior secured loan facility—which is a material debt issuance event. The non-dilutive nature of the capital and its significance to the company's financial capacity support materiality.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":22084,"accession_number":"0001193125-26-326199","item_number":"1.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a Loan and Security Agreement with Oxford Finance LLC providing for term loans in an aggregate principal amount of up to $200 million, with an initial $50 million tranche funded on July 30, 2026. This is a material creation of a new direct financial obligation—a senior secured debt facility—distinct from covenant breach or other debt-related events. The filing explicitly discloses the interest rate (SOFR + 4.6%, floor 7.60%), maturity dates (2031–2032 depending on milestones), repayment terms, and security interest in substantially all assets, all hallmarks of a material debt issuance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"Annexon, Inc.","ticker":"ANNX","filing_date":"2026-07-30"},{"id":22085,"accession_number":"0001193125-26-326199","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a strategic credit facility agreement with Oxford Finance for up to $200 million, with an initial $50 million drawn at closing. This creates a new direct financial obligation—a senior secured loan facility—which is the core disclosure required under Item 2.03. The facility is material to the company's capital structure and financial position, particularly as a non-dilutive financing source to fund clinical development of vonaprument and tanruprubart.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"Annexon, Inc.","ticker":"ANNX","filing_date":"2026-07-30"},{"id":22086,"accession_number":"0001193125-26-326199","item_number":"8.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Annexon entered into a strategic credit facility agreement with Oxford Finance for up to $200 million, with an initial $50 million drawn at closing and an additional $100 million available upon achievement of certain milestones. This constitutes creation of a new direct financial obligation—a senior secured loan facility—which is a material debt issuance event. The non-dilutive nature of the capital and its significance to the company's financial capacity support materiality.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-31T00:15:10.934540+00:00","company_name":"Annexon, Inc.","ticker":"ANNX","filing_date":"2026-07-30"}]}