MP Materials Corp.
US ˙ NYSE ˙ US5533681012

SecurityMP / MP Materials Corp.
InstitutionJefferies Financial Group Inc.
Latest Disclosed Ownership5,172 shares
Latest Disclosed Value $ 249,601
Jefferies Financial Group Inc. ownership in MP / MP Materials Corp.

On May 7, 2026 - Jefferies Financial Group Inc. filed a 13F-HR form disclosing ownership of 5,172 shares of MP Materials Corp. (US:MP) valued at $249,601 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2024 disclosing 0 shares of MP Materials Corp.. The current value of the position is $354,541 USD.

Jefferies Financial Group Inc. 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 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

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)
2026-05-07 2026-03-31 13F MP MATERIALS COM CL A 553368101 5,172 5,172 250 0.0017
2024-08-13 2024-06-30 13F MP MATERIALS COM CL A 553368101 0 -46,320 -100.00 0 -100.00
2024-05-13 2024-03-31 13F MP MATERIALS COM CL A 553368101 46,320 12,551 37.17 662 -1.19 0.0061
2024-05-06 2023-12-31 13F/A-1 MP MATERIALS COM CL A 553368101 33,769 -3,094 -8.39 670 -4.83 0.0044
2024-02-14 2023-12-31 13F MP MATERIALS COM CL A 553368101 33,769 -3,094 670 0.0044
2023-11-14 2023-09-30 13F MP MATERIALS COM CL A 553368101 36,863 18,376 99.40 704 66.82 0.0063
2023-08-14 2023-06-30 13F MP MATERIALS COM CL A 553368101 18,487 2,503 15.66 423 -6.22 0.0038
2023-05-15 2023-03-31 13F MP MATERIALS COM CL A 553368101 15,984 9,350 140.94 451 179.50 0.0036
2023-09-21 2022-12-31 13F/A-1 MP MATERIALS COM CL A 553368101 6,634 6,634 161 0.0011
2023-02-14 2022-12-31 13F MP MATERIALS COM CL A 553368101 9,768 9,768 147 0.0010
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
(%)
2024-11-14 2024-09-30 13F MP MATERIALS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-13 2024-06-30 13F MP MATERIALS COM CL A Call 54,200 690 n/a n/a n/a
2024-05-13 2024-03-31 13F MP MATERIALS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-06 2023-12-31 13F/A MP MATERIALS COM CL A Call 50,000 992 n/a n/a n/a
2024-02-14 2023-12-31 13F MP MATERIALS COM CL A Call 50,000 992 n/a n/a n/a
2023-11-14 2023-09-30 13F MP MATERIALS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F MP MATERIALS COM CL A Call 15,000 -40.00 343 -51.28 n/a n/a n/a
2023-05-15 2023-03-31 13F MP MATERIALS COM CL A Call 25,000 -68.47 705 -63.43 n/a n/a n/a
2023-09-21 2022-12-31 13F/A MP MATERIALS COM CL A Call 79,300 1,925 n/a n/a n/a
2023-02-14 2022-12-31 13F MP MATERIALS COM CL A Call 79,300 1,925 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
(%)
2024-11-14 2024-09-30 13F MP MATERIALS COM CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-13 2024-06-30 13F MP MATERIALS COM CL A Put 30,000 100.00 382 78.04 n/a n/a n/a
2024-05-13 2024-03-31 13F MP MATERIALS COM CL A Put 15,000 -74.96 214 -82.00 n/a n/a n/a
2024-05-06 2023-12-31 13F/A MP MATERIALS COM CL A Put 59,900 505.05 1,189 529.10 n/a n/a n/a
2024-02-14 2023-12-31 13F MP MATERIALS COM CL A Put 59,900 1,189 n/a n/a n/a
2023-11-14 2023-09-30 13F MP MATERIALS COM CL A Put 9,900 0.00 189 -16.37 n/a n/a n/a
2023-08-14 2023-06-30 13F MP MATERIALS COM CL A Put 9,900 -71.63 227 -77.01 n/a n/a n/a
2023-05-15 2023-03-31 13F MP MATERIALS COM CL A Put 34,900 984 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.