MP Materials Corp. (MP) Ownership
MP ownership summary
as of October 18, 2026- Institutions
- 78.5% of shares outstanding
- Insiders
- 19.62% of shares outstanding
- Shares outstanding
- 178.1M
- Float
- 144.3M shares available to trade
- Short interest
- 22.37% 36.6M shares short
- Days to cover
- 7.25 short interest up 14.0% vs prior month
- Institutions 78.53%
- Insiders 19.62%
- Other investors 1.86%
MP top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 8.27% | 14.7M | $592.0M | −9,544 (−0.1%) | June 30, 2026 |
| 2 | State Street Corp | 4.36% | 7.8M | $312.3M | +376,519 (+5.1%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 3.89% | 6.9M | $278.6M | +62,655 (+0.9%) | June 30, 2026 |
| 4 | Vanguard Portfolio Management, LLC | 3.83% | 6.8M | $274.1M | +53,027 (+0.8%) | June 30, 2026 |
| 5 | D. E. Shaw & Co LP | 3.27% | 5.8M | $234.1M | +2.7M (+85.1%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | 2.68% | 4.8M | $191.7M | −779,696 (−14.0%) | June 30, 2026 |
| 7 | Van Eck Associates Corporation | 2.56% | 4.6M | $183.4M | −23,214 (−0.5%) | June 30, 2026 |
| 8 | UBS Group AG | 2.43% | 4.3M | $173.6M | +847,813 (+24.4%) | June 30, 2026 |
| 9 | Amvescap Plc. | 1.99% | 3.5M | $142.1M | −257,675 (−6.8%) | June 30, 2026 |
| 10 | Bank of America Corp | 1.92% | 3.4M | $137.3M | +1.4M (+69.7%) | June 30, 2026 |
| 11 | T. Rowe Price Associates, Inc. | 1.84% | 3.3M | $131.5M | +1.9M (+134.9%) | June 30, 2026 |
| 12 | JPMorgan Chase & Co | 1.70% | 3.0M | $121.3M | +99,470 (+3.4%) | June 30, 2026 |
| 13 | Cooperman Leon G | 1.68% | 3.0M | $120.5M | — | June 30, 2026 |
| 14 | Reaves W H & Co Inc | 1.46% | 2.6M | $104.7M | −1,926 (−0.1%) | June 30, 2026 |
| 15 | Geode Capital Management, LLC | 1.43% | 2.6M | $102.6M | +33,551 (+1.3%) | June 30, 2026 |
| 16 | Dimensional Fund Advisors, Inc. | 1.23% | 2.2M | $88.2M | +323,320 (+17.3%) | June 30, 2026 |
| 17 | CAXTON ASSOCIATES LLP | 1.12% | 2.0M | $80.0M | +2.0M (+32,602.3%) | June 30, 2026 |
| 18 | NORGES BANK | 1.09% | 1.9M | $77.7M | +300,939 (+18.4%) | June 30, 2026 |
| 19 | Marshall Wace Asset Management Ltd | 0.97% | 1.7M | $69.7M | +1.6M (+1,239.6%) | June 30, 2026 |
| 20 | BNP Paribas Investment Partners SA | 0.73% | 1.3M | $52.2M | −39,656 (−3.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 11.7M shares and 6 cut 1.1M.
MP top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 2.99% | 5.3M | $214.1M | −1,908 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 2.86% | 5.1M | $204.7M | −6,392 (−0.1%) | August 31, 2026 |
| 3 | Stt Strt®SPDR®S&P®Mtls &MngETF | 2.31% | 4.1M | $165.1M | +41,592 (+1.0%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.07% | 3.7M | $148.1M | +2,650 (+0.1%) | August 31, 2026 |
| 5 | VanEck Rare Earth & Strat Mtls ETF | 1.46% | 2.6M | $104.6M | — | September 30, 2026 |
| 6 | Reaves Utility Income | 1.38% | 2.5M | $98.7M | — | June 30, 2026 |
| 7 | Vanguard MStar Small Cap Growth Indx Inv | 1.19% | 2.1M | $85.0M | −15,962 (−0.7%) | August 31, 2026 |
| 8 | VanEck RreErth&StratMtlsETFA$Acc | 0.88% | 1.6M | $62.7M | — | September 30, 2026 |
| 9 | MFS International Intrinsic Equity A | 0.65% | 1.2M | $46.2M | +1.2M (0.0%) | August 31, 2026 |
| 10 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.56% | 989K | $39.7M | −11,151 (−1.1%) | August 31, 2026 |
| 11 | Invesco Discovery A | 0.46% | 813K | $32.7M | +67,147 (+9.0%) | August 31, 2026 |
| 12 | State Street SPDR Port S&P 400 Md CpETF | 0.44% | 791K | $31.8M | −1,112 (−0.1%) | September 30, 2026 |
| 13 | Fidelity Extended Market Index | 0.37% | 664K | $26.7M | −3,465 (−0.5%) | August 31, 2026 |
| 14 | iShares Russell Mid-Cap ETF | 0.33% | 594K | $23.9M | +1,102 (+0.2%) | September 30, 2026 |
| 15 | WisdomTree Strat Mtls&RareErthsMnrsETF$A | 0.33% | 589K | $23.7M | −8,899 (−1.5%) | September 30, 2026 |
| 16 | DFA US Small Cap I | 0.32% | 569K | $22.8M | — | August 31, 2026 |
| 17 | Fidelity Mid Cap Index | 0.32% | 563K | $22.6M | +19,704 (+3.6%) | August 31, 2026 |
| 18 | Dimensional US Small Cap ETF | 0.29% | 518K | $20.8M | +10,300 (+2.0%) | September 30, 2026 |
| 19 | iShares S&P Mid-Cap 400 Growth ETF | 0.29% | 508K | $20.4M | −542 (−0.1%) | September 30, 2026 |
| 20 | American Century Heritage Inv | 0.28% | 495K | $19.9M | +227,275 (+84.8%) | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MP insider transactions
latest 10| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-20 | James H Litinsky | Sell | $64.03 | 259,179 | $16.6M |
| 2026-04-17 | James H Litinsky | Sell | $64.05 | 40,821 | $2.6M |
| 2026-03-17 | Ryan Corbett | Sell | $60.00 | 46,000 | $2.8M |
| 2026-01-08 | James H Litinsky | Sell | $64.17 | 272,600 | $17.5M |
| 2026-01-07 | James H Litinsky | Sell | $64.01 | 27,400 | $1.8M |
| 2025-12-09 | Ryan Corbett | Sell | $60.00 | 38,146 | $2.3M |
| 2025-12-05 | James H Litinsky | Sell | $62.94 | 385,000 | $24.2M |
| 2025-11-20 | James H Litinsky | Sell | $63.86 | 248,411 | $15.9M |
| 2025-11-17 | Ryan Corbett | Sell | $57.72 | 20,000 | $1.2M |
| 2025-08-29 | Michael Stuart Rosenthal | Sell | $72.02 | 150,000 | $10.8M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
MP shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MP
Institutional investors own 78.5% of MP Materials's shares and insiders 19.62%. The largest holder is BlackRock Inc with 8.27% of the shares (14.7M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 6 reduced their stake in the latest filings. Short interest is 22.37% of the float, or 7.25 days of average trading volume. The share count rose 189.3% since 2019.
Related: MP analyst forecast, MP key metrics. See the MP stock overview for the latest quote and news.
MP ownership FAQ
Who owns the most MP Materials stock?
The largest shareholders of MP Materials are BlackRock Inc (8.27%), State Street Corp (4.36%), Vanguard Capital Management, LLC (3.89%), Vanguard Portfolio Management, LLC (3.83%), D. E. Shaw & Co LP (3.27%).
What percentage of MP Materials is owned by institutions?
Institutions hold 78.5% of MP Materials's shares outstanding; insiders hold 19.62%.
Which funds own MP Materials?
The largest fund holders of MP Materials are iShares Core S&P Mid-Cap ETF (2.99%), Vanguard MStar Total Stk Mkt Idx Invest (2.86%), Stt Strt®SPDR®S&P®Mtls &MngETF (2.31%), Vanguard Small Cap Index (2.07%), VanEck Rare Earth & Strat Mtls ETF (1.46%).
What is MP Materials's short interest?
36.6M shares of MP Materials were sold short, 22.37% of the float; at the average daily volume it would take 7.25 days to cover.
Are insiders buying or selling MP Materials?
Of the latest 10 reported insider transactions in MP Materials (since August 29, 2025), 0 were purchases and 10 were sales.
How many shares of MP Materials are outstanding?
MP Materials has 178.1M shares outstanding, of which 144.3M are in the public float.