# MP MATERIALS CORP (MPWS)

> Institutional ownership reported to the SEC as of Q1 2021, from Form 13F filings. Source: https://holderbook.com/stocks/MPWS/

- Reporting holders: 27
- Reported value: $160.2M
- Held through calls: 13.3%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Athanor Capital, LP](https://holderbook.com/funds/1730574-athanor-capital-lp/) | $77.4M | 2,152,092 | 1.8% | 1 |
| [ARISTEIA CAPITAL LLC](https://holderbook.com/funds/1080171-aristeia-capital-llc/) | $18.2M | 753,675 | 0.4% | 2 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $12.1M | 0 | 0.0% | 2 |
| [MARSHALL WACE, LLP](https://holderbook.com/funds/1318757-marshall-wace-llp/) | $9.2M | 0 | 0.0% | 2 |
| [Jefferies Group LLC](https://holderbook.com/funds/1084580-jefferies-group-llc/) | $8.3M | 344,418 | 0.1% | 2 |
| [LMR Partners LLP](https://holderbook.com/funds/1578621-lmr-partners-llp/) | $5.9M | 245,321 | 0.1% | 2 |
| [Aequim Alternative Investments LP](https://holderbook.com/funds/1728201-aequim-alternative-investments-lp/) | $4.8M | 200,000 | 0.3% | 2 |
| [ExodusPoint Capital Management, LP](https://holderbook.com/funds/1736225-exoduspoint-capital-management-lp/) | $4.8M | 200,000 | 0.1% | 2 |
| [BOOTHBAY FUND MANAGEMENT, LLC](https://holderbook.com/funds/1549230-boothbay-fund-management-llc/) | $3.1M | 85,554 | 0.1% | 2 |
| [Blackstone Group Inc.](https://holderbook.com/funds/1393818-blackstone-group-inc/) | $2.5M | 105,158 | 0.0% | 1 |
| [MORGAN STANLEY](https://holderbook.com/funds/895421-morgan-stanley/) | $2.4M | 100,385 | 0.0% | 2 |
| [Marathon Trading Investment Management LLC](https://holderbook.com/funds/1572748-marathon-trading-investment-management-llc/) | $2.0M | 82,862 | 0.2% | 2 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $1.8M | 73,128 | 0.0% | 2 |
| [Walleye Capital LLC](https://holderbook.com/funds/1758720-walleye-capital-llc/) | $1.6M | 65,266 | 0.1% | 2 |
| [Whitebox Advisors LLC](https://holderbook.com/funds/1257391-whitebox-advisors-llc/) | $1.5M | 60,000 | 0.0% | 2 |
| [Monashee Investment Management LLC](https://holderbook.com/funds/1627608-monashee-investment-management-llc/) | $967.0K | 40,000 | 0.1% | 2 |
| [ARS Investment Partners, LLC](https://holderbook.com/funds/733020-ars-investment-partners-llc/) | $770.0K | 31,845 | 0.1% | 1 |
| [Black Maple Capital Management LP](https://holderbook.com/funds/1588959-black-maple-capital-management-lp/) | $668.0K | 27,619 | 0.5% | 1 |
| [WOLVERINE ASSET MANAGEMENT LLC](https://holderbook.com/funds/1279891-wolverine-asset-management-llc/) | $644.0K | 26,638 | 0.0% | 2 |
| [Context Capital Management, LLC](https://holderbook.com/funds/1301396-context-capital-management-llc/) | $566.0K | 23,418 | 0.1% | 1 |
| [FineMark National Bank & Trust](https://holderbook.com/funds/1537720-finemark-national-bank-trust/) | $306.0K | 12,667 | 0.0% | 2 |
| [BLUEFIN CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1144208-bluefin-capital-management-llc/) | $300.0K | 12,395 | 0.0% | 1 |
| [COWEN AND COMPANY, LLC](https://holderbook.com/funds/48966-cowen-and-company-llc/) | $267.0K | 11,031 | 0.0% | 2 |
| [Tower Research Capital LLC (TRC)](https://holderbook.com/funds/1533421-tower-research-capital-llc-trc/) | $30.0K | 1,251 | 0.0% | 2 |
| [ROYAL BANK OF CANADA](https://holderbook.com/funds/1000275-royal-bank-of-canada/) | $14.0K | 566 | 0.0% | 2 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q1 2021 | 27 | $160.2M |
| Q4 2020 | 35 | $92.5M |