{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-002826","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2023-02-15T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.559712+00:00","generated_at":"2026-06-19T12:47:27.132023+00:00","sec_items":["2.02","7.01","9.01"],"event_type":"earnings","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"low","headline":"Martin Marietta announces Q4/FY2022 results; specific figures not in filing text","bullets":["Press release issued on February 15, 2023, covering Q4 and full-year 2022 financial results.","Conference call held on February 15, 2023; replay available on company website.","Non-GAAP financial measures detail provided on investor relations page of martinmarietta.com."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-002826","json":"https://secwatch.observer/filing/0000950170-23-002826.json","markdown":"https://secwatch.observer/filing/0000950170-23-002826.md","text":"https://secwatch.observer/filing/0000950170-23-002826.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095017023002826/0000950170-23-002826-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095017023002826/mlm-20230215.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T12:47:27.132023+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":"f96548099f30be2c2a6981d7a4b7cff870852570","claim":"MARTIN MARIETTA MATERIALS INC reported financial results for December 2022 and year ended December 31, 2022.","evidence_excerpt":"On February 15, 2023, the Company announced financial results for the December 2022 and year ended December 31, 2022. The press release, dated February 15, 2023, is furnished as Exhibit 99.1 to this report and is incorporated by reference herein.","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/916076/000095017023002826/0000950170-23-002826-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"December 2022 and year ended December 31, 2022"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}