Who Owns MP MATERIALS CORP (MP.WS)? -- Institutional Holders (2026-03-31)

11 institutions reported holding $191.5M of MP MATERIALS CORP (MP.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($90.8M), GROUP ONE TRADING LLC ($51.0M), SIMPLEX TRADING, LLC ($31.8M), JPMORGAN CHASE & CO ($9.1M), HRT FINANCIAL LP ($3.8M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1IMC-Chicago, LLC$90.8M1.9MTrimmed
2GROUP ONE TRADING LLC$51.0M1.1MTrimmed
3SIMPLEX TRADING, LLC$31.8M659,200Trimmed
4JPMORGAN CHASE & CO$9.1M200,000Trimmed
5HRT FINANCIAL LP$3.8M78,500Added
6OnyxPoint Global Management LP$3.7M77,100Hold
7Thomist Capital Management, LP$965,20020,000New
8All Terrain Financial Advisors, LLC$284,7345,900Hold
9SG Americas Securities, LLC$00Exited
10K2 PRINCIPAL FUND, L.P.$00Exited
11HITE Hedge Asset Management LLC$00Exited

Source: SEC Form 13F filings · as of 2026-03-31