WEISENBURGER RANDALL J 4

What Happened Randall J. Weisenburger, a director of MP Materials Corp. (MP), was awarded 3,038 restricted stock units (RSUs) on June 9, 2026. The award was reported as an acquisition (code A) with an acquisition price of $0.00 — meaning no cash was paid by the insider. This is a derivative award (RSUs) rather than an open-market purchase or sale.

Key Details

• Transaction date: 2026-06-09; Form 4 filed 2026-06-10 (timely filing).
• Award: 3,038 RSUs; acquisition price reported $0.00.
• Post-transaction beneficial ownership: not specified in the filing.
• Instrument: RSUs — each represents a contingent right to one share of MP common stock.
• Vesting/settlement (per footnote): RSUs vest on the earlier of (i) June 15, 2027 or (ii) the next annual meeting, contingent on continued service; they are settled on the earlier to occur of (x) June 15 following the fifth anniversary of the vesting date, (y) a change in control (per IRC §409A), or (z) the director’s separation from service. RSUs fully vest on a change in control or upon the director’s death or disability.

Context This is a standard director compensation award (derivative RSUs), not a cash purchase or sale. Such grants are routine for board members and are tied to service and corporate events; they do not by themselves indicate the insider’s short-term trading sentiment.