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 ($3.8m this quarter). Holder counts are more reliable. Shares outstanding: 163.5m as of 2025-05-02, 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 ≈ $24.34. Options: 22 managers hold calls ($303.3m notional), 23 hold puts ($244.8m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 230 | 175 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $141.1m | $124.6m | 0.88 |
| Q3 2024 | $212.0m | $205.1m | 0.97 |
| Q4 2024 | $163.2m | $179.8m | 1.10 |
| Q1 2025 | $303.3m | $244.8m | 0.81 |
Biggest buyers
| BANK OF AMERICA CORP /DE/ | Added | +2.5m |
| Driehaus Capital Management LLC | New | +1.4m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +1.3m |
| MARSHALL WACE, LLP | Added | +946.1k |
| VANGUARD GROUP INC | Added | +942.1k |
| D. E. Shaw & Co., Inc. | Added | +681.0k |
| FMR LLC | Added | +591.0k |
| Invesco Ltd. | Added | +536.5k |
| Brevan Howard Capital Management LP | New | +532.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +528.5k |
Biggest sellers
| UBS Group AG | Reduced | -1.2m |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -1.1m |
| Greencape Capital Pty Ltd | Sold out | -1.0m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -948.2k |
| BlackRock, Inc. | Reduced | -753.6k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | -256.3k |
| QVT Financial LP | Reduced | -227.4k |
| Polar Capital Holdings Plc | Reduced | -193.5k |
| BAILLIE GIFFORD & CO | Reduced | -177.6k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -170.6k |
Biggest calls
| UBS Group AG | Unchanged | $167.8m6.9m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $29.7m1.2m shares |
| PEAK6 LLC | Added | $23.7m969.8k shares |
| BARCLAYS PLC | New | $15.9m650.0k shares |
| Caption Management, LLC | New | $12.8m525.0k shares |
| SIMPLEX TRADING, LLC | Added | $10.0m408.1k shares |
| IMC-Chicago, LLC | Added | $8.5m348.9k shares |
| GROUP ONE TRADING LLC | Reduced | $6.5m265.6k shares |
| CITADEL ADVISORS LLC | Reduced | $5.8m235.7k shares |
| BANK OF AMERICA CORP /DE/ | New | $5.1m207.2k shares |
Biggest puts
| Squarepoint Ops LLC | Reduced | $99.3m4.1m shares |
| Parallax Volatility Advisers, L.P. | Added | $31.4m1.3m shares |
| TWO SIGMA INVESTMENTS, LP | Added | $26.5m1.1m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $18.5m758.3k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | $16.8m689.2k shares |
| CITADEL ADVISORS LLC | Reduced | $7.7m313.4k shares |
| JANE STREET GROUP, LLC | Added | $6.8m276.7k shares |
| GROUP ONE TRADING LLC | Added | $6.6m271.0k shares |
| PEAK6 LLC | Added | $5.0m203.3k shares |
| IMC-Chicago, LLC | Reduced | $4.3m176.3k 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2023 | 1 | $924.0k | 1 | $14.1m | — |
| 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 |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-03-26 | 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 | $500.0k18.5k shares |
| 2025-03-25 | 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 | $10.7m396.3k shares |
| 2025-03-20 | 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 | $2.6m95.6k shares |
| 2025-03-19 | 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 | $4.3m161.2k shares |
| 2025-03-18 | 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 | $17.1m639.3k shares |
| 2025-03-17 | 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 | $13.1m489.9k shares |
| 2025-03-17 | Corbett Ryan Chief Financial Officer | Sold plan | $405.0k15.0k shares |
| 2025-03-14 | Corbett Ryan Chief Financial Officer | Sold plan | $1.5m60.0k shares |
| 2025-02-04 | 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 | $9.3m386.2k 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, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 15.5m $378.3m | Reduced -753.6k |
| Hancock Prospecting Pty Ltd 13.37% of their portfolio | 13.9m $338.4m | Unchanged |
| VANGUARD GROUP INC 0.01% of their portfolio | 13.7m $333.5m | Added +942.1k |
| STATE STREET CORP 0.01% of their portfolio | 6.9m $168.4m | Reduced -89.9k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 5.7m $138.8m | Added +2.5m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 5.6m $136.4m | Reduced -948.2k |
| UBS Group AG 0.02% of their portfolio | 4.1m $100.2m | Reduced -1.2m |
| COOPERMAN LEON G 3.49% of their portfolio | 3.6m $87.9m | Unchanged |
| Invesco Ltd. 0.01% of their portfolio | 2.7m $64.8m | Added +536.5k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.5m $61.0m | Added +290.6k |
| MORGAN STANLEY 0.00% of their portfolio | 2.4m $59.7m | Reduced -5.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.0m $49.4m | Added +69.6k |
| VAN ECK ASSOCIATES CORP 0.06% of their portfolio | 1.8m $43.2m | Reduced -122.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 1.7m $40.5m | First filing |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 1.6m $37.8m | Added +1.3m |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.5m $37.8m | Reduced -123.5k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.5m $36.5m | Reduced -134.4k |
| Driehaus Capital Management LLC 0.33% of their portfolio | 1.4m $34.3m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio | 1.4m $33.2m | Reduced -1.1m |
| BAILLIE GIFFORD & CO 0.03% of their portfolio | 1.3m $31.9m | Reduced -177.6k |
| QVT Financial LP 3.03% of their portfolio | 1.3m $31.8m | Reduced -227.4k |
| MARSHALL WACE, LLP 0.04% of their portfolio | 1.3m $31.4m | Added +946.1k |
| SEGALL BRYANT & HAMILL, LLC 0.44% of their portfolio | 1.2m $28.6m | Reduced -63.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.1m $26.7m | Added +13.4k |
| BANK OF NOVA SCOTIA 0.06% of their portfolio | 1.1m $26.4m | Added +206.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.0m $25.5m | Added +64.8k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 971.4k $23.7m | Added +681.0k |
| ARS Investment Partners, LLC 1.36% of their portfolio | 961.1k $15.0m | Reduced -240 |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 904.4k $22.1m | Reduced -136.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 890.3k $21.7m | Reduced -9.4k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 759.9k $18.5m | Reduced -170.6k |
| PINNACLE ASSOCIATES LTD 0.23% of their portfolio | 653.8k $16.0m | Reduced -28.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 625.6k $15.3m | Added +528.5k |
| FMR LLC 0.00% of their portfolio | 622.3k $15.2m | Added +591.0k |
| Clearbridge Investments, LLC 0.01% of their portfolio | 596.8k $14.6m | Reduced -133.0k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 583.0k $14.2m | Reduced -102.8k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.15% of their portfolio | 579.3k $14.1m | Reduced -16.7k |
| Gotham Asset Management, LLC 0.12% of their portfolio | 570.9k $13.9m | Added +38.2k |
| MACQUARIE GROUP LTD 0.02% of their portfolio | 536.8k $13.1m | Reduced -144.0k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 536.5k $13.1m | Added +182.4k |
| Brevan Howard Capital Management LP 0.36% of their portfolio | 532.9k $13.0m | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio | 493.6k $12.0m | Reduced -256.3k |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 479.9k $11.7m | Added +24.7k |
| Granite Investment Partners, LLC 0.59% of their portfolio | 479.6k $11.7m | Added +130.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 469.2k $11.5m | Added +415.4k |
| HSBC HOLDINGS PLC 0.01% of their portfolio | 463.3k $11.1m | Reduced -3.9k |
| Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio | 426.4k $10.4m | Added +134.7k |
| Bernzott Capital Advisors 4.98% of their portfolio | 414.5k $10.1m | Reduced -12.3k |
| Sicart Associates LLC 3.45% of their portfolio | 408.6k $10.0m | Added +37.8k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 383.0k $9.3m | Added +82.1k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 371.9k $9.1m | Reduced -30.9k |
| Legal & General Group Plc 0.00% of their portfolio | 325.7k $8.0m | Reduced -6.1k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 309.6k $7.6m | Added +19.5k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.05% of their portfolio | 293.2k $7.2m | Reduced -12 |
| Polar Capital Holdings Plc 0.04% of their portfolio | 288.5k $7.0m | Reduced -193.5k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 277.4k $6.8m | Reduced -9.7k |
| HITE Hedge Asset Management LLC 0.40% of their portfolio | 263.9k $6.4m | Reduced -121.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 246.9k $6.0m | Added +9.9k |
| Baird Financial Group, Inc. 0.01% of their portfolio | 244.6k $6.0m | Added +168.6k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.10% of their portfolio | 243.8k $6.0m | Unchanged |
| Swiss National Bank 0.00% of their portfolio | 237.1k $5.8m | Reduced -6.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 234.2k $5.7m | Added +1.1k |
| Nuveen, LLC 0.00% of their portfolio | 229.7k $5.6m | First filing |
| ARDSLEY ADVISORY PARTNERS LP 1.24% of their portfolio | 220.0k $5.4m | Reduced -10.0k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 203.5k $5.0m | Added +1.3k |
| Yaupon Capital Management LP 0.36% of their portfolio | 202.9k $5.0m | New |
| Pekin Hardy Strauss, Inc. 0.59% of their portfolio | 200.0k $4.9m | Reduced -35.4k |
| Prescott Group Capital Management, L.L.C. 0.70% of their portfolio | 197.2k $4.8m | Unchanged |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio | 195.0k $4.8m | Added +11.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 193.9k $4.7m | Added +51.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 192.0k $4.7m | Added +159.6k |
| Cutter & CO Brokerage, Inc. 1.05% of their portfolio | 181.0k $4.4m | Reduced -6.7k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 179.1k $4.4m | New |
| Skylands Capital, LLC 0.63% of their portfolio | 177.5k $4.3m | Reduced -31.5k |
| FLPUTNAM INVESTMENT MANAGEMENT CO 0.08% of their portfolio | 177.3k $4.3m | Added +152.7k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 172.7k $4.2m | Reduced -1.2k |
| BARCLAYS PLC 0.00% of their portfolio | 162.0k $4.0m | Added +40.7k |
| PHILADELPHIA TRUST CO 0.32% of their portfolio | 154.5k $3.8m | Unchanged |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 151.6k $3.7m | Reduced -72.3k |
| SHELL ASSET MANAGEMENT CO 0.17% of their portfolio | 146.5k $3.6m | Reduced -6.3k |
| TUDOR INVESTMENT CORP ET AL 0.03% of their portfolio | 141.2k $3.4m | New |
| BROWN ADVISORY INC 0.00% of their portfolio | 136.8k $3.3m | Unchanged |
| Lisanti Capital Growth, LLC 0.99% of their portfolio | 136.7k $3.3m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 133.7k $3.3m | Reduced -12.7k |
| LPL Financial LLC 0.00% of their portfolio | 132.8k $3.2m | Added +6.4k |
| SWS Partners 1.04% of their portfolio | 129.6k $3.2m | Reduced -32.9k |
| GROUP ONE TRADING LLC 0.13% of their portfolio | 127.3k $3.1m | Added +34.5k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 127.2k $3.1m | Added +7.8k |
| Cetera Investment Advisers 0.01% of their portfolio | 123.5k $3.0m | Added +81.3k |
| SAPIENT CAPITAL LLC 0.06% of their portfolio | 121.7k $3.0m | Reduced -250 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 114.9k $2.8m | Reduced -1.7k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 112.9k $2.8m | Added +13.0k |
| Informed Momentum Co LLC 0.47% of their portfolio | 111.5k $2.7m | New |
| CITIGROUP INC 0.00% of their portfolio | 110.8k $2.7m | Added +12.3k |
| Quantbot Technologies LP 0.09% of their portfolio | 110.3k $2.7m | New |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 105.5k $2.6m | Added +21.0k |
| Private Advisor Group, LLC 0.02% of their portfolio | 105.3k $2.6m | Reduced -143.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 103.7k $2.5m | Added +15.0k |
| J.W. COLE ADVISORS, INC. 0.08% of their portfolio | 101.8k $2.5m | Added +6.6k |
| RPg Family Wealth Advisory, LLC 0.69% of their portfolio | 99.6k $2.4m | New |