Michael Stuart Rosenthal bought $543K of MP Materials (MP)
Executed Jun 9, disclosed Jun 10, 1 day later.
Over the 21 trading sessions from the disclosed entry session (Jun 10), the stock returned -3.4% (delay-adjusted); from the execution session (Jun 9), -10.7%. Derived: entry at the session's open, exit at the close 20 sessions later.
Michael Stuart Rosenthal (Chief Operating Officer) filed 2 Form 4 reports in the trailing twelve months (2 purchases, 0 sales), most often in MP Materials Corp. (MP). Across 2 priced purchase filings, the average 21-session return was -1.7% from execution and +2.0% from disclosure (delay-adjusted; derived). The largest single filing was $963K of MP (17,000 sh × $56.62, as filed), executed May 20.
Basic Materials · MP Materials Corp., together with its subsidiaries, produces rare earth materials in the Western Hemisphere
More Basic Materials filings→ Insider filings, newest first→ View the original filing at www.sec.gov→17,000 sh × $56.62
Exec May 20
Filed May 20 · 9:03 PM ET MPSALE MP Materials Corp. $10.8M
150,000 sh across 3 lots
Exec Aug 29 2025
Filed Aug 29 2025 · 5:30 PM ET