{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-190795","form_type":"8-K","ticker":null,"cik":"0001524741","company_name":"U.S. SILICA HOLDINGS, INC.","filed_at":"2024-08-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:13.369546+00:00","generated_at":"2026-05-31T13:47:58.241523+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"U.S. Silica appoints Alan Schultz as EVP & CFO, replacing Kevin Hough","bullets":["Alan Schultz appointed EVP and Chief Financial Officer effective August 1, 2024.","Schultz, 43, previously served as SVP, Strategy at U.S. Silica since 2016.","Kevin Hough stepped down as interim EVP and CFO, effective August 1, 2024.","Schultz holds a BS from Northwestern and an MBA from Harvard; no familial ties to officers."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-190795","json":"https://secwatch.observer/filing/0001193125-24-190795.json","markdown":"https://secwatch.observer/filing/0001193125-24-190795.md","text":"https://secwatch.observer/filing/0001193125-24-190795.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1524741/000119312524190795/0001193125-24-190795-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1524741/000119312524190795/d866526d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T13:47:58.241523+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":"4dee517a36","claim":"Kevin Hough departed as interim Executive Vice President and Chief Financial Officer at U.S. SILICA HOLDINGS, INC..","evidence_excerpt":"Kevin Hough, who has stepped down, effective August 1, 2024, from his role as interim Executive Vice President and Chief Financial Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1524741/000119312524190795/0001193125-24-190795-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"stepped down"},{"label":"Role","value":"interim Executive Vice President and Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"e1c3fbb456","claim":"Alan Schultz was appointed as Executive Vice President and Chief Financial Officer at U.S. SILICA HOLDINGS, INC..","evidence_excerpt":"appointed Alan Schultz to serve as the Company’s Executive Vice President and Chief Financial Officer, effective August 1, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1524741/000119312524190795/0001193125-24-190795-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Executive Vice President and 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"}