InsiderSource
MP

MP Materials Corp. / DE

SEC CIK 1801368
$57.55 −5.0% · 90 days
90-day buys
$1.51M
2 open-market
90-day sells
$83.49M
22 open-market
Net insider flow
−$81.98M
Net selling
Filings shown
49
Most recent
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At a glance

Over the last 90 days, insiders at MP have sold a net $81.98M of stock (2 open-market buys vs 22 sells).

Largest recent trade: Litinsky James H. sold $16.6M of MP, trimming their stake 2%.

Most active filer: Litinsky James H., with 22 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for MP, newest first
View on SEC EDGAR ↗
MP
MP Materials Corp. / DE
Buy Rosenthal Michael Stuart · Chief Operating Officer · Open-market purchase · filed 3d ago ΔOwn +7.9%

Rosenthal Michael Stuart, MP's COO, spent $543K of their own money on 10,000 shares at $54, growing their stake 8%.

+$543K
10,000 sh @ $54
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed 1w ago ΔOwn −1.2%

Litinsky James H. sold $9.35M of MP, trimming their stake 1%.

−$9.35M
136,141 sh @ $69
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MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed 2w ago ΔOwn −0.8%

Litinsky James H. sold $6.15M of MP, trimming their stake 1%.

−$6.15M
95,114 sh @ $65
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed 2w ago ΔOwn −0.8%

Litinsky James H. sold $6.01M of MP, trimming their stake 1%.

−$6.01M
92,236 sh @ $65
MP
MP Materials Corp. / DE
Buy Rosenthal Michael Stuart · Chief Operating Officer · Open-market purchase · filed 3w ago ΔOwn +1.3%

Rosenthal Michael Stuart, MP's COO, spent $962.5K of their own money on 17,000 shares at $57, growing their stake 1%.

+$962.5K
17,000 sh @ $57
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed May 14, 2026 ΔOwn −0.8%

Litinsky James H. sold $6.14M of MP, trimming their stake 1%.

−$6.14M
93,959 sh @ $65
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed May 14, 2026 ΔOwn −0.7%

Litinsky James H. sold $5.4M of MP, trimming their stake 1%.

−$5.4M
83,229 sh @ $65
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed May 14, 2026 ΔOwn −0.2%

Litinsky James H. sold $1.33M of MP.

−$1.33M
19,844 sh @ $67
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed May 14, 2026 ΔOwn −0.8%

Litinsky James H. sold $6.76M of MP, trimming their stake 1%.

−$6.76M
102,968 sh @ $66
MP
MP Materials Corp. / DE
Sell Hoops Elliot Dean · General Counsel and Secretary · Open-market sale · filed May 8, 2026 ΔOwn −11%

Hoops Elliot Dean sold $521.9K of MP, trimming their stake 11%.

−$521.9K
6,958 sh @ $75
MP
MP Materials Corp. / DE
Sell Corbett Ryan · Chief Financial Officer · Open-market sale · filed May 8, 2026 ΔOwn −16%

Corbett Ryan sold $1.5M of MP, trimming their stake 16%.

−$1.5M
20,000 sh @ $75
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed Apr 20, 2026 ΔOwn −2.0%

Litinsky James H. sold $16.6M of MP, trimming their stake 2%.

−$16.6M
259,179 sh @ $64
MP
MP Materials Corp. / DE
Sell Litinsky James H. · Director, Chairman and CEO · Open-market sale · filed Apr 20, 2026 ΔOwn −0.3%

Litinsky James H. sold $2.61M of MP.

−$2.61M
40,821 sh @ $64
MP
MP Materials Corp. / DE
Sell Corbett Ryan · Chief Financial Officer · Open-market sale · filed Mar 17, 2026 ΔOwn −26%

Corbett Ryan sold $2.76M of MP, trimming their stake 26%.

−$2.76M
46,000 sh @ $60
MP
MP Materials Corp. / DE
Sell Hoops Elliot Dean · General Counsel and Secretary · Open-market sale · filed Mar 17, 2026 ΔOwn −19%

Hoops Elliot Dean sold $835K of MP, trimming their stake 19%.

−$835K
13,914 sh @ $60
MP
MP Materials Corp. / DE
Sell Hoops Elliot Dean · General Counsel and Secretary · Open-market sale · filed Jan 22, 2026 ΔOwn −9.4%

Hoops Elliot Dean sold $533.6K of MP, trimming their stake 9%.

−$533.6K
7,823 sh @ $68
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About MP insider activity

This page tracks every recent Form 4 filed for MP Materials Corp. / DE with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is MP insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for MP Materials Corp. / DE usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.