{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-253468","form_type":"8-K","ticker":"LUNG","cik":"0001127537","company_name":"Pulmonx Corp","filed_at":"2023-10-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:28.298307+00:00","generated_at":"2026-06-10T02:01:30.311577+00:00","sec_items":["2.02","5.02","7.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Pulmonx CFO Sung resigns; McKune interim CFO; Q3 revenue prelim ~$17.6M (+30% YoY)","bullets":["CFO Derrick Sung resigned effective Oct 10, 2023 to pursue other opportunity; no disagreement with company.","John McKune (VP, Corp Controller) appointed Interim CFO; receives $75k cash bonus and $75k RSU grant.","Preliminary Q3 2023 revenue ~$17.6M, up ~30% YoY, a record quarter.","Search for permanent CFO initiated; Sung remains advisory through Oct 31, then consulting through Mar 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-253468","json":"https://secwatch.observer/filing/0001193125-23-253468.json","markdown":"https://secwatch.observer/filing/0001193125-23-253468.md","text":"https://secwatch.observer/filing/0001193125-23-253468.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1127537/000119312523253468/0001193125-23-253468-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1127537/000119312523253468/d503275d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T02:01:30.311577+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":"27e866a48abdc0bab0600b436ce8ba6beac2771c","claim":"Pulmonx Corp reported third quarter 2023 results: revenue approximately $17.6 million.","evidence_excerpt":"Preliminary, unaudited third quarter 2023 revenue expected to be approximately $17.6 million","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1127537/000119312523253468/0001193125-23-253468-index.htm","confidence":0.95,"family_label":"Earnings Releases","details":[{"label":"Period","value":"third quarter 2023"},{"label":"Revenue","value":"approximately $17.6 million"},{"label":"Result","value":"preliminary results"}],"fact_type":"earnings_release"},{"claim_id":"0d61f5416a","claim":"Derrick Sung resigned as Chief Financial Officer at Pulmonx Corp.","evidence_excerpt":"On October 6, 2023, Derrick Sung, Ph.D., Chief Financial Officer of the Company, stepped down from his position, effective October 10, 2023 (the “ Effective Date ”), to pursue a new business opportunity.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1127537/000119312523253468/0001193125-23-253468-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"35d0f60e76","claim":"John McKune was appointed as Interim Chief Financial Officer at Pulmonx Corp.","evidence_excerpt":"John McKune, Vice President, Corporate Controller of the Company, was appointed by the Board of Directors of the Company (the “ Board ”) to serve as the Interim Chief Financial Officer of the Company, effective as of the Effective Date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1127537/000119312523253468/0001193125-23-253468-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}