--- title: "MP Materials Chief Operating Officer Purchased Shares Worth Over $962K" type: "News" locale: "en" url: "https://longbridge.com/en/news/287138146.md" description: "Michael Stuart Rosenthal, an officer serving as Chief Operating Officer, purchased 17,000 shares at $56.62 per share. The total purchase amount reported is $962,540. Following the transaction, Rosenthal directly owns 1,333,673 shares and indirectly owns 126,622 shares through the Rosenthal Family Trust.Reporter NameRosenthal Michael StuartRelationshipChief Operating OfficerTypePurchaseAmount$962,540SEC FilingForm 4DisclaimerThis is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC." datetime: "2026-05-21T01:10:00.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/287138146.md) - [en](https://longbridge.com/en/news/287138146.md) - [zh-HK](https://longbridge.com/zh-HK/news/287138146.md) --- # MP Materials Chief Operating Officer Purchased Shares Worth Over $962K Michael Stuart Rosenthal, an officer serving as Chief Operating Officer, purchased 17,000 shares at $56.62 per share. The total purchase amount reported is $962,540. Following the transaction, Rosenthal directly owns 1,333,673 shares and indirectly owns 126,622 shares through the Rosenthal Family Trust. Reporter Name Rosenthal Michael Stuart Relationship Chief Operating Officer Type Purchase Amount $962,540 SEC Filing Form 4 **Disclaimer** This is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC. ### Related Stocks - [MP.US](https://longbridge.com/en/quote/MP.US.md) - [MPL.US](https://longbridge.com/en/quote/MPL.US.md) - [MPG.US](https://longbridge.com/en/quote/MPG.US.md) ## Related News & Research - [Is AI a bubble? It’s starting to get soapy](https://longbridge.com/en/news/286937439.md) - [Koru Medical Systems Chief Executive Officer Purchased Shares Worth Over $1.4M](https://longbridge.com/en/news/287112815.md) - [Google's latest AI flex came with Silicon Valley's new favorite word](https://longbridge.com/en/news/286951990.md) - [Leonardo DRS Director Purchased Shares Worth Over $1.0M](https://longbridge.com/en/news/286968127.md) - [Charter Communications Director Purchased Shares Worth Over $1.3M](https://longbridge.com/en/news/286816047.md)