# MP MATERIALS CORP COM CL A

MP MATERIALS CORP COM CL A is a security (CUSIP 553368101) tracked across SEC portfolio filings. 773 institutional managers reported $9.6B on Form 13F as of 2026-06-30; 45 registered fund positions totaling $507.4M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MP MATERIALS CORP
- Class: COM CL A
- CUSIP: 553368101
- Asset category: EC
- 13F holders: 773
- 13F value: $9.6B
- 13F period: 2026-06-30
- N-PORT fund positions: 45
- N-PORT value: $507.4M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 773 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| UBS Group AG | Zurich, V8 | $1.8B | 3,474,972 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $731.5M | 14,479,787 |
| Hancock Prospecting Pty Ltd | West Perth, C3 | $717.2M | 14,861,212 |
| BlackRock, Inc. | New York, NY | $711.7M | 14,746,925 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $548.1M | 367,942 |
| STATE STREET CORP | BOSTON, MA | $357.0M | 7,397,227 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $289.9M | 297,114 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $289.3M | 257,413 |
| MORGAN STANLEY | NEW YORK, NY | $268.0M | 5,552,307 |
| D. E. Shaw & Co., Inc. | New York, NY | $243.8M | 3,149,152 |
| REAVES W H & CO INC | JERSEY CITY, NJ | $146.0M | 2,606,844 |
| COOPERMAN LEON G | BOCA RATON, FL | $144.8M | 3,000,000 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $133.1M | 2,919,294 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $121.6M | 2,519,805 |
| PEAK6 LLC | CHICAGO, IL | $116.9M | 210,191 |

## Top fund holders (N-PORT)

_Showing 15 of 45 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $196.0M | 80.92% |
| Reaves Utility Income Fund | Reaves Utility Income Fund | $162.2M | 400.18% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $72.6M | 8.90% |
| [ALGER SPECTRA FUND](https://search.stillhousedata.com/fund/S000009190) | ALGER FUNDS II | $18.9M | 43.97% |
| [AB DISCOVERY GROWTH FUND, INC.](https://search.stillhousedata.com/fund/S000010117) | AB DISCOVERY GROWTH FUND, INC. | $18.8M | 69.71% |
| [LORD ABBETT DEVELOPING GROWTH FUND INC](https://search.stillhousedata.com/fund/S000006834) | LORD ABBETT DEVELOPING GROWTH FUND, INC. | $10.9M | 49.20% |
| [T. Rowe Price New Era Fund](https://search.stillhousedata.com/fund/S000002105) | T. ROWE PRICE NEW ERA FUND, INC. | $10.2M | 31.87% |
| [T. Rowe Price Real Assets Fund, Inc.](https://search.stillhousedata.com/fund/S000029428) | T. ROWE PRICE REAL ASSETS FUND, INC. | $9.7M | 9.23% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $6.2M | 24.50% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $4.3M | 0.74% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $3.8M | 1.06% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $3.7M | 1.22% |
| [BNY Mellon Midcap Index Fund, Inc.](https://search.stillhousedata.com/fund/S000000078) | BNY MELLON MIDCAP INDEX FUND, INC. | $3.6M | 25.81% |
| [T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002073) | T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC. | $3.4M | 7.95% |
| [AGF U.S. Market Neutral Anti-Beta Fund](https://search.stillhousedata.com/fund/S000033013) | AGF Investments Trust | $2.7M | 66.43% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/553368101.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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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.