{"schema_version":"secwatch.filing_event.v1","accession":"0000815556-25-000077","form_type":"8-K","ticker":"FAST","cik":"0000815556","company_name":"FASTENAL CO","filed_at":"2025-04-10T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.380876+00:00","generated_at":"2026-05-23T17:47:34.692702+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Fastenal appoints Sheryl Lisowski as interim CFO, effective April 17","bullets":["Sheryl Lisowski, 57, previously EVP – Chief Accounting Officer and Treasurer, adds interim CFO role.","Base salary increased from $320,000 to $440,000 effective April 17, 2025.","Quarterly cash incentive bonus tied to pre-tax and net income growth over prior-year quarter.","Appointment continues until a permanent CFO is named; no additional stock options granted.","Lisowski previously served as interim CFO from Jan to Aug 2016."],"urls":{"canonical":"https://secwatch.observer/filing/0000815556-25-000077","json":"https://secwatch.observer/filing/0000815556-25-000077.json","markdown":"https://secwatch.observer/filing/0000815556-25-000077.md","text":"https://secwatch.observer/filing/0000815556-25-000077.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/815556/000081555625000077/0000815556-25-000077-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/815556/000081555625000077/fast-20250410.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T17:47:34.692702+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":"9f72599906","claim":"Sheryl A. Lisowski was appointed as interim Chief Financial Officer at FASTENAL CO.","evidence_excerpt":"appointed Sheryl A. Lisowski, the Company's Executive Vice President – Chief Accounting Officer and Treasurer, to serve in the additional role of interim Chief Financial Officer of the Company, effective April 17, 2025","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/815556/000081555625000077/0000815556-25-000077-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"}