{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-090316","form_type":"8-K","ticker":"AURA","cik":"0001501796","company_name":"Aura Biosciences, Inc.","filed_at":"2023-04-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:39.094899+00:00","generated_at":"2026-06-17T06:27:24.745006+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Aura Biosciences COO Mark De Rosch resigns effective April 30, 2023","bullets":["COO Mark De Rosch resigns, effective April 30, 2023.","De Rosch to provide transition services for 30 days, extendable by another 30 days at Company's option.","No successor named as of filing date."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-090316","json":"https://secwatch.observer/filing/0001193125-23-090316.json","markdown":"https://secwatch.observer/filing/0001193125-23-090316.md","text":"https://secwatch.observer/filing/0001193125-23-090316.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1501796/000119312523090316/0001193125-23-090316-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1501796/000119312523090316/d465749d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T06:27:24.745006+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"4f16c2c099","claim":"Mark De Rosch resigned as Chief Operating Officer at Aura Biosciences, Inc..","evidence_excerpt":"On April 3, 2023, Mark De Rosch informed Aura Biosciences, Inc. (the “Company”) of his intent to resign as Chief Operating Officer of the Company. Mr. De Rosch’s resignation will be effective on April 30, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1501796/000119312523090316/0001193125-23-090316-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}