MP Materials Corp.
US ˙ NYSE ˙ US5533681012

SecurityMP / MP Materials Corp.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership4,438 shares
Latest Disclosed Value $ 224,208
Parallel Advisors, LLC ownership in MP / MP Materials Corp.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 4,438 shares of MP Materials Corp. (US:MP) valued at $224,208 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 4,362 shares of MP Materials Corp.. This represents a change in shares of 1.74% during the quarter. The current value of the position is $304,225 USD.

Parallel Advisors, LLC 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 .

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.

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)
2026-02-11 2025-12-31 13F MP MATERIALS CORP COM CL A Stock 553368101 4,438 76 1.74 224 -23.29 0.0041
2025-11-13 2025-09-30 13F MP MATERIALS CORP COM CL A Stock 553368101 4,362 264 6.44 293 114.71 0.0054
2025-07-08 2025-06-30 13F MP MATERIALS CORP COM CL A Stock 553368101 4,098 -1,636 -28.53 136 -2.16 0.0027
2025-04-08 2025-03-31 13F MP MATERIALS CORP COM CL A Stock 553368101 5,734 1,651 40.44 140 120.63 0.0032
2025-02-10 2024-12-31 13F MP MATERIALS CORP COM CL A Stock 553368101 4,083 186 4.77 64 -7.35 0.0014
2024-11-13 2024-09-30 13F MP MATERIALS CORP COM CL A Stock 553368101 3,897 3,056 363.38 69 580.00 0.0016
2024-08-08 2024-06-30 13F MP MATERIALS CORP COM CL A Stock 553368101 841 -1,002 -54.37 11 -61.54 0.0003
2024-05-06 2024-03-31 13F MP MATERIALS CORP COM CL A Stock 553368101 1,843 1,505 445.27 26 333.33 0.0007
2024-02-12 2023-12-31 13F MP MATERIALS CORP COM CL A Stock 553368101 338 -505 -59.91 7 -62.50 0.0002
2024-05-20 2023-09-30 13F/A-1 MP MATERIALS CORP COM CL A Stock 553368101 843 415 96.96 16 77.78 0.0005
2023-11-14 2023-09-30 13F MP MATERIALS CORP COM CL A Stock 553368101 843 415 16 0.0005
2024-05-20 2023-06-30 13F/A-1 MP MATERIALS CORP COM CL A Stock 553368101 428 408 2,040.00 10 0.0003
2023-08-04 2023-06-30 13F MP MATERIALS CORP COM CL A Stock 553368101 428 408 10 0.0003
2024-05-20 2023-03-31 13F/A-1 MP MATERIALS CORP COM CL A Stock 553368101 20 12 150.00 1 0.0000
2023-04-25 2023-03-31 13F MP MATERIALS CORP COM CL A Stock 553368101 20 12 1 0.0000
2023-02-06 2022-12-31 13F MP MATERIALS CORP COM CL A Stock 553368101 8 -56 -87.50 0 -100.00 0.0000
2022-11-10 2022-09-30 13F MP MATERIALS CORP COM CL A Stock 553368101 64 14 28.00 2 0.00 0.0001
2022-08-01 2022-06-30 13F MP MATERIALS CORP COM CL A Stock 553368101 50 -100 -66.67 2 -75.00 0.0001
2022-04-28 2022-03-31 13F MP MATERIALS CORP COM CL A Stock 553368101 150 50 50.00 8 60.00 0.0003
2022-01-20 2021-12-31 13F MP MATERIALS CORP COM CL A Stock 553368101 100 -20 -16.67 5 25.00 0.0002
2021-11-02 2021-09-30 13F/A-1 MP MATERIALS CORP COM CL A Stock 553368101 120 -565 -82.48 4 -84.00 0.0002
2021-08-06 2021-06-30 13F MP MATERIALS CORP COM CL A Stock 553368101 685 685 25 0.0011
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
(%)
2024-05-20 2023-09-30 13F/A MP MATERIALS CORP CLL OPT 01 Options Call 0 -100.00 0 n/a n/a n/a
2023-11-14 2023-09-30 13F MP MATERIALS CORP CLL OPT 01 Options Call 0 0 n/a n/a n/a
2024-05-20 2023-06-30 13F/A MP MATERIALS CORP CLL OPT 01 Options Call 500 0 n/a n/a n/a
2023-08-04 2023-06-30 13F MP MATERIALS CORP CLL OPT 01 Options Call 500 0 n/a n/a n/a
2022-01-19 2021-12-31 13F MP MATERIALS CORP COM CL A Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F MP MATERIALS CORP COM CL A Stock Call 685 25 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.