# MP MATERIALS CORP COM CL A

MP MATERIALS CORP COM CL A is a security (CUSIP 553368951) tracked across SEC portfolio filings. 6 institutional managers reported $98.9M on Form 13F as of 2026-06-30.

## Summary

- Issuer: MP MATERIALS CORP
- Class: COM CL A
- CUSIP: 553368951
- 13F holders: 6
- 13F value: $98.9M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| IMC-Chicago, LLC | CHICAGO, IL | $61.5M | — |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $22.1M | — |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $10.4M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $4.6M | — |
| [All Terrain Financial Advisors, LLC](https://search.stillhousedata.com/firm/286683) | COON RAPIDS, MN | $285K | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |

## More

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.