MP MATERIALS CORP MP
COM CL A · Common Stock · CUSIP 553368101 · ISIN US5533681012
American Rare Earth materials company
- SectorMaterials
- IndustryMetal Mining
- HeadquartersLas Vegas, NV
- Websitempmaterials.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($5.7m this quarter). Holder counts are more reliable. Shares outstanding: 177.1m as of 2025-08-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $33.29. Options: 37 managers hold calls ($794.4m notional), 29 hold puts ($499.9m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 395 |
| Q4 2022 | 408 |
| Q1 2023 | 411 |
| Q2 2023 | 388 |
| Q3 2023 | 379 |
| Q4 2023 | 392 |
| Q1 2024 | 380 |
| Q2 2024 | 387 |
| Q3 2024 | 367 |
| Q4 2024 | 387 |
| Q1 2025 | 409 |
| Q2 2025 | 489 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 225 | 151 |
| Q4 2023 | 187 | 176 |
| Q1 2024 | 196 | 176 |
| Q2 2024 | 185 | 175 |
| Q3 2024 | 162 | 200 |
| Q4 2024 | 160 | 187 |
| Q1 2025 | 207 | 176 |
| Q2 2025 | 256 | 220 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $212.0m | $205.1m | 0.97 |
| Q4 2024 | $163.2m | $179.8m | 1.10 |
| Q1 2025 | $303.3m | $244.8m | 0.81 |
| Q2 2025 | $794.4m | $499.9m | 0.63 |
Biggest buyers
| CAXTON ASSOCIATES LLP | New | +4.0m |
| JPMORGAN CHASE & CO | Added | +2.7m |
| Walleye Trading LLC | Added | +2.4m |
| NATIONAL BANK OF CANADA /FI/ | Added | +2.0m |
| TWO SIGMA INVESTMENTS, LP | Added | +1.6m |
| MORGAN STANLEY | Added | +1.6m |
| BNP PARIBAS FINANCIAL MARKETS | Added | +1.3m |
| RENAISSANCE TECHNOLOGIES LLC | Added | +1.2m |
| TWO SIGMA ADVISERS, LP | Added | +1.1m |
| REAVES W H & CO INC | New | +965.0k |
Biggest sellers
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -5.0m |
| Driehaus Capital Management LLC | Sold out | -1.4m |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -1.3m |
| QVT Financial LP | Sold out | -1.3m |
| MARSHALL WACE, LLP | Reduced | -1.0m |
| ARS Investment Partners, LLC | Reduced | -896.1k |
| BlackRock, Inc. | Reduced | -709.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -604.7k |
| D. E. Shaw & Co., Inc. | Reduced | -603.4k |
| BANK OF NOVA SCOTIA | Reduced | -519.4k |
Biggest calls
| UBS Group AG | Unchanged | $228.8m6.9m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $171.0m5.1m shares |
| JANE STREET GROUP, LLC | Added | $62.8m1.9m shares |
| GROUP ONE TRADING LLC | Added | $44.1m1.3m shares |
| IMC-Chicago, LLC | Added | $42.6m1.3m shares |
| SIMPLEX TRADING, LLC | Added | $34.0m1.0m shares |
| PEAK6 LLC | Reduced | $29.1m876.0k shares |
| Walleye Trading LLC | Added | $28.8m864.4k shares |
| BARCLAYS PLC | Unchanged | $21.6m650.0k shares |
| CITADEL ADVISORS LLC | Added | $20.1m603.1k shares |
Biggest puts
| Squarepoint Ops LLC | Added | $136.7m4.1m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $68.5m2.1m shares |
| Parallax Volatility Advisers, L.P. | Added | $46.4m1.4m shares |
| TWO SIGMA INVESTMENTS, LP | Added | $39.1m1.2m shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $26.9m809.2k shares |
| CITADEL ADVISORS LLC | Added | $24.1m725.8k shares |
| IMC-Chicago, LLC | Added | $22.5m676.2k shares |
| JANE STREET GROUP, LLC | Added | $22.3m669.9k shares |
| Walleye Trading LLC | Added | $21.5m647.7k shares |
| GROUP ONE TRADING LLC | Added | $19.8m595.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.3 pts · filed 2026-10-27 | 8.0% |
| Litinsky James H. 13D · may seek influence -1.7 pts · filed 2026-01-13 | 7.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27), BANK OF NOVA SCOTIA (3.7%, 2026-01-27), Shenghe Resources Holding Co., Ltd. (3.1%, 2025-11-25)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 2 | $6.6m | $846.5k |
| Q3 2024 | 1 | $325.2k | 0 | — | — |
| Q4 2024 | 0 | — | 3 | $59.1m | $42.5m |
| Q1 2025 | 0 | — | 2 | $59.5m | $48.3m |
| Q2 2025 | 0 | — | 2 | $5.8m | $5.8m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-26 | Hoops Elliot Dean General Counsel and Secretary | Sold plan | $200.9k5.5k shares |
| 2025-06-13 | Hoops Elliot Dean General Counsel and Secretary · By Hoops Family Trust | Sold plan | $165.9k5.5k shares |
| 2025-06-12 | Hoops Elliot Dean General Counsel and Secretary · By Hoops Family Trust | Sold plan | $24.0k800 shares |
| 2025-04-14 | Litinsky James H. Chairman and CEO, director · Held by James Henry Litinsky, Trustee of James Henry Litinsky Revocable Trust u/a/d 10/19/2011 | Sold plan | $5.4m199.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 14.8m $491.9m | Reduced -709.6k |
| Hancock Prospecting Pty Ltd 14.66% of their portfolio | 13.9m $461.2m | Unchanged |
| VANGUARD GROUP INC 0.01% of their portfolio | 13.7m $454.4m | Reduced -6.0k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 6.6m $221.2m | Added +964.6k |
| STATE STREET CORP 0.01% of their portfolio | 6.5m $216.5m | Reduced -389.4k |
| UBS Group AG 0.04% of their portfolio | 5.1m $168.1m | Added +949.7k |
| MORGAN STANLEY 0.01% of their portfolio | 4.0m $133.7m | Added +1.6m |
| CAXTON ASSOCIATES LLP 3.42% of their portfolio | 4.0m $132.2m | New |
| COOPERMAN LEON G 3.79% of their portfolio | 3.2m $107.8m | Reduced -360.0k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 3.2m $106.4m | Added +2.7m |
| Invesco Ltd. 0.02% of their portfolio | 3.0m $100.9m | Added +378.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.08% of their portfolio | 2.9m $97.2m | Added +1.3m |
| Walleye Trading LLC 1.98% of their portfolio | 2.4m $80.9m | Added +2.4m |
| TWO SIGMA INVESTMENTS, LP 0.14% of their portfolio | 2.4m $79.9m | Added +1.6m |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.2m $72.9m | Reduced -305.1k |
| NATIONAL BANK OF CANADA /FI/ 0.07% of their portfolio | 2.0m $67.0m | Added +2.0m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.0m $65.6m | Reduced -51.7k |
| VAN ECK ASSOCIATES CORP 0.07% of their portfolio | 1.7m $57.6m | Reduced -37.2k |
| TWO SIGMA ADVISERS, LP 0.11% of their portfolio | 1.6m $54.0m | Added +1.1m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.5m $48.7m | Reduced -33.2k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.3m $44.6m | Reduced -208.5k |
| BAILLIE GIFFORD & CO 0.03% of their portfolio | 1.3m $43.8m | Added +13.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.05% of their portfolio | 1.2m $40.9m | Added +1.2m |
| SEGALL BRYANT & HAMILL, LLC 0.56% of their portfolio | 1.2m $39.8m | Added +23.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 1.1m $37.8m | Reduced -413.4k |
| FMR LLC 0.00% of their portfolio | 1.1m $36.2m | Added +464.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.0m $33.8m | Reduced -77.4k |
| REAVES W H & CO INC 0.71% of their portfolio | 965.0k $32.1m | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 926.2k $30.8m | Reduced -116.9k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 830.7k $27.6m | Reduced -73.7k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 786.0k $26.2m | Added +476.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 663.4k $22.1m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 624.1k $20.8m | Reduced -5.0m |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 621.1k $20.7m | Added +588.8k |
| GROUPAMA ASSET MANAGMENT 0.02% of their portfolio | 600.0k $1.0m | New |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 596.5k $19.8m | Reduced -293.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 569.1k $18.9m | Added +334.9k |
| BANK OF NOVA SCOTIA 0.04% of their portfolio | 560.5k $18.6m | Reduced -519.4k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.17% of their portfolio | 538.9k $17.9m | Reduced -40.5k |
| HSBC HOLDINGS PLC 0.01% of their portfolio | 525.3k $17.4m | Added +61.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 511.6k $17.0m | Added +264.7k |
| Alyeska Investment Group, L.P. 0.06% of their portfolio | 503.9k $16.8m | New |
| Gotham Asset Management, LLC 0.10% of their portfolio | 499.4k $16.6m | Reduced -71.5k |
| PINNACLE ASSOCIATES LTD 0.23% of their portfolio | 485.8k $16.2m | Reduced -168.1k |
| Man Group plc 0.03% of their portfolio | 485.1k $16.1m | New |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 475.1k $15.8m | Reduced -107.9k |
| Granite Investment Partners, LLC 0.72% of their portfolio | 445.3k $14.8m | Reduced -34.2k |
| Clearbridge Investments, LLC 0.01% of their portfolio | 433.3k $14.4m | Reduced -163.6k |
| Public Sector Pension Investment Board 0.06% of their portfolio | 412.4k $13.7m | Added +29.4k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 408.4k $13.6m | New |
| Sicart Associates LLC 4.60% of their portfolio | 395.5k $13.2m | Reduced -13.1k |
| HRT FINANCIAL LP 0.07% of their portfolio | 373.4k $12.4m | New |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 368.0k $12.2m | Reduced -603.4k |
| Rockefeller Capital Management L.P. 0.01% of their portfolio | 354.0k $11.8m | Added +277.9k |
| Connor, Clark & Lunn Investment Management Ltd. 0.04% of their portfolio | 348.8k $11.6m | Reduced -77.6k |
| Legal & General Group Plc 0.00% of their portfolio | 333.6k $11.1m | Added +7.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 313.3k $10.4m | Reduced -58.6k |
| Bernzott Capital Advisors 5.26% of their portfolio | 309.6k $10.3m | Reduced -104.9k |
| Rheos Capital Works Inc. 0.57% of their portfolio | 300.0k $10.0m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 280.3k $9.3m | Added +86.3k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 270.9k $9.0m | Reduced -6.5k |
| Philadelphia Financial Management of San Francisco, LLC 1.96% of their portfolio | 265.3k $8.8m | New |
| MARSHALL WACE, LLP 0.01% of their portfolio | 247.7k $8.2m | Reduced -1.0m |
| Nuveen, LLC 0.00% of their portfolio | 245.4k $8.2m | Added +15.7k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.22% of their portfolio | 243.8k $8.1m | Unchanged |
| Swiss National Bank 0.00% of their portfolio | 234.2k $7.8m | Reduced -2.9k |
| EXCHANGE TRADED CONCEPTS, LLC 0.10% of their portfolio | 224.8k $7.5m | New |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 208.1k $6.9m | Added +4.6k |
| Squarepoint Ops LLC 0.01% of their portfolio | 194.8k $6.5m | New |
| Polar Capital Holdings Plc 0.03% of their portfolio | 193.5k $6.4m | Reduced -95.0k |
| Baird Financial Group, Inc. 0.01% of their portfolio | 193.0k $6.4m | Reduced -51.7k |
| Verition Fund Management LLC 0.04% of their portfolio | 188.5k $6.3m | Added +129.7k |
| MACQUARIE GROUP LTD 0.01% of their portfolio | 187.5k $6.2m | Reduced -349.2k |
| Y-Intercept (Hong Kong) Ltd 0.15% of their portfolio | 179.8k $6.0m | New |
| Monolith Management Ltd 2.05% of their portfolio | 174.4k $5.8m | New |
| SHELL ASSET MANAGEMENT CO 0.18% of their portfolio | 157.3k $5.2m | Added +10.7k |
| LPL Financial LLC 0.00% of their portfolio | 155.8k $5.2m | Added +23.0k |
| SIH Partners, LLLP 0.49% of their portfolio | 154.6k $5.1m | New |
| Lisanti Capital Growth, LLC 1.38% of their portfolio | 149.6k $5.0m | Added +12.9k |
| CITIGROUP INC 0.00% of their portfolio | 149.1k $5.0m | Added +38.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 146.7k $4.9m | Reduced -45.3k |
| Skylands Capital, LLC 0.67% of their portfolio | 138.5k $4.6m | Reduced -39.0k |
| BROWN ADVISORY INC 0.01% of their portfolio | 138.0k $4.6m | Added +1.2k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 136.5k $4.5m | Reduced -36.2k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.03% of their portfolio | 136.2k $4.5m | Reduced -157.0k |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio | 131.7k $4.4m | Reduced -63.3k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 128.6k $4.3m | Reduced -5.1k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 127.8k $4.0m | Added +119.3k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 122.6k $4.1m | Reduced -4.5k |
| FLPUTNAM INVESTMENT MANAGEMENT CO 0.07% of their portfolio | 121.1k $4.0m | Reduced -56.2k |
| HITE Hedge Asset Management LLC 0.23% of their portfolio | 119.2k $4.0m | Reduced -144.7k |
| Cetera Investment Advisers 0.01% of their portfolio | 117.7k $3.9m | Reduced -5.7k |
| Prescott Group Capital Management, L.L.C. 0.46% of their portfolio | 117.2k $3.9m | Reduced -80.0k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 108.8k $3.6m | Added +54.6k |
| Aberdeen Group plc 0.01% of their portfolio | 107.0k $3.6m | Added +9.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 106.9k $3.6m | Reduced -8.0k |
| RPg Family Wealth Advisory, LLC 0.94% of their portfolio | 106.2k $3.5m | Added +6.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 103.7k $3.5m | Unchanged |
| SWS Partners 0.92% of their portfolio | 102.8k $3.4m | Reduced -26.8k |
| Polymer Capital Management (US) LLC 0.54% of their portfolio | 100.0k $3.3m | New |