secwatch.observer — SEC 8-K summary ====================================== Issuer: GIBRALTAR INDUSTRIES, INC. (ROCK) CIK: 0000912562 Form: 8-K/A Filed at: 2021-11-19T23:59:59+00:00 Accession: 0000912562-21-000044 Event type: other_material Sentiment: neutral Materiality: 0.30 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Gibraltar corrects Agtech historical EBITDA and margin growth in investor presentation -------------------------------------------------------------------------------- - Agtech Adjusted EBITDA Margin growth corrected from ~880 bps to ~680 bps on slide 3 (page 76). - Agtech 2020 EBITDA corrected from $19,085 to $20,352; margin corrected from 9.1% to 9.7% on slide 12. - Corrected investor presentation filed as Exhibit 99.1 and posted on gibraltar1.com. - No impact on previously reported consolidated financial statements. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/912562/000091256221000044/0000912562-21-000044-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/912562/000091256221000044/rock-20211119.htm HTML page: https://secwatch.observer/filing/0000912562-21-000044 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer