MP Materials Corp.
MX ˙ BMV ˙ US5533681012
SecurityMX:MP / MP Materials Corp.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership3,907 shares
Latest Disclosed Value $ 188,552
Signaturefd, Llc reports 4.66% decrease in ownership of MP / MP Materials Corp.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 3,907 shares of MP Materials Corp. (MX:MP) valued at $188,552 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 4,098 shares of MP Materials Corp.. This represents a change in shares of -4.66% during the quarter.

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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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)
2026-04-07 2026-03-31 13F MP MATERIALS COM CL A 553368101 3,907 -191 -4.66 189 -9.18 0.0029
2026-01-20 2025-12-31 13F MP MATERIALS COM CL A 553368101 4,098 -323 -7.31 207 -30.07 0.0032
2025-10-21 2025-09-30 13F MP MATERIALS COM CL A 553368101 4,421 431 10.80 297 124.24 0.0047
2025-07-16 2025-06-30 13F MP MATERIALS COM CL A 553368101 3,990 34 0.86 133 37.50 0.0023
2025-05-02 2025-03-31 13F MP MATERIALS COM CL A 553368101 3,956 160 4.21 97 62.71 0.0018
2025-02-10 2024-12-31 13F MP MATERIALS COM CL A 553368101 3,796 135 3.69 59 -7.81 0.0011
2024-10-21 2024-09-30 13F MP MATERIALS COM CL A 553368101 3,661 3,262 817.54 65 1,180.00 0.0012
2024-07-29 2024-06-30 13F MP MATERIALS COM CL A 553368101 399 53 15.32 5 25.00 0.0001
2024-05-03 2024-03-31 13F MP MATERIALS COM CL A 553368101 346 198 133.78 5 100.00 0.0001
2024-02-01 2023-12-31 13F MP MATERIALS COM CL A 553368101 148 -188 -55.95 3 -66.67 0.0001
2023-11-03 2023-09-30 13F MP MATERIALS COM CL A 553368101 336 277 469.49 6 500.00 0.0002
2023-08-01 2023-06-30 13F MP MATERIALS COM CL A 553368101 59 31 110.71 1 0.0000
2023-04-28 2023-03-31 13F MP MATERIALS COM CL A 553368101 28 22 366.67 1 0.0000
2023-01-30 2022-12-31 13F MP MATERIALS COM CL A 553368101 6 -1,034 -99.42 0 -100.00 0.0000
2022-11-08 2022-09-30 13F MP MATERIALS COM CL A 553368101 1,040 -186 -15.17 28 -28.21 0.0010
2022-08-10 2022-06-30 13F MP MATERIALS COM CL A 553368101 1,226 -277 -18.43 39 -54.65 0.0013
2022-05-02 2022-03-31 13F MP MATERIALS COM CL A 553368101 1,503 100 7.13 86 34.38 0.0026
2022-01-25 2021-12-31 13F MP MATERIALS COM CL A 553368101 1,403 -260 -15.63 64 18.52 0.0020
2021-10-28 2021-09-30 13F MP MATERIALS COM CL A 553368101 1,663 363 27.92 54 12.50 0.0019
2021-07-26 2021-06-30 13F MP MATERIALS COM CL A 553368101 1,300 0 0.00 48 2.13 0.0019
2021-04-30 2021-03-31 13F MP MATERIALS COM CL A 553368101 1,300 1,300 47 0.0021
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.