It's just a standard/template that most companies reuse.
https://www.figma.com/blog/s1-confidential-submission
https://www.prnewswire.com/news-releases/gemini-announces-co...
https://investors.navan.com/news-releases/news-release-detai...
https://www.round1-group.co.jp/docs/pdf/2026/20260507_news_e...
It's a required public disclosure following a format traditionally used in mandatory public disclosures.