MP Materials Corp.
MX ˙ BMV ˙ US5533681012
SecurityMX:MP / MP Materials Corp.
InstitutionMan Group plc
Latest Disclosed Ownership16,549 shares
Latest Disclosed Value $ 798,655
Man Group plc ownership in MP / MP Materials Corp.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 16,549 shares of MP Materials Corp. (MX:MP) valued at $798,655 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 477,919 shares of MP Materials Corp.. This represents a change in shares of -96.54% during the quarter.

Man Group plc has a history of taking positions in derivatives of the underlying security (MP) in the form of stock options. The firm currently holds call options representing 68,300 of underlying shares valued at $3,296,158 USD and put options representing 68,300 of underlying shares valued at $3,296,158 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MP / MP Materials Corp. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MP MATERIALS COM CL A 553368101 16,549 -461,370 -96.54 799 -96.69 0.0014
2026-02-17 2025-12-31 13F MP MATERIALS COM CL A 553368101 477,919 -285,100 -37.36 24,144 -52.82 0.0410
2025-11-14 2025-09-30 13F MP MATERIALS COM CL A 553368101 763,019 277,896 57.28 51,176 217.07 0.0890
2025-08-14 2025-06-30 13F MP MATERIALS COM CL A 553368101 485,123 485,123 16,140 0.0307
2025-05-15 2025-03-31 13F MP MATERIALS COM CL A 553368101 0 -14,017 -100.00 0 -100.00
2025-02-14 2024-12-31 13F MP MATERIALS COM CL A 553368101 14,017 219 -23.78 0.0006
2023-11-14 2023-09-30 13F MP MATERIALS COM CL A 553368101 286 -92.00 0.0009
2023-08-14 2023-06-30 13F MP MATERIALS COM CL A 553368101 156,268 3,575 -51.43 0.0110
2023-05-15 2023-03-31 13F MP MATERIALS COM CL A 553368101 7,361 -12.91 0.0262
2023-02-14 2022-12-31 13F MP MATERIALS COM CL A 553368101 348,071 112,861 47.98 8,451 31.59 0.0303
2022-11-14 2022-09-30 13F MP MATERIALS COM CL A 553368101 235,210 6,422 194.59 0.0298
2022-08-15 2022-06-30 13F MP MATERIALS COM CL A 553368101 2,180 0.0092
2022-05-16 2022-03-31 13F MP MATERIALS COM CL A 553368101 0 -30,518 -100.00 0 -100.00
2022-02-14 2021-12-31 13F MP MATERIALS COM CL A 553368101 30,518 5,519 22.08 1,386 71.96 0.0045
2021-11-15 2021-09-30 13F MP MATERIALS COM CL A 553368101 24,999 8,119 48.10 806 29.58 0.0028
2021-08-16 2021-06-30 13F MP MATERIALS COM CL A 553368101 16,880 6,305 59.62 622 63.68 0.0022
2021-05-17 2021-03-31 13F MP MATERIALS COM CL A 553368101 10,575 10,575 380 0.0017
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F MP MATERIALS COM CL A Call 68,300 0.00 3,296 -4.46 n/a n/a n/a
2026-02-17 2025-12-31 13F MP MATERIALS COM CL A Call 68,300 3,451 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F MP MATERIALS COM CL A Put 68,300 0.00 3,296 -4.46 n/a n/a n/a
2026-02-17 2025-12-31 13F MP MATERIALS COM CL A Put 68,300 3,451 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.