MP Materials Corp.
MX ˙ BMV ˙ US5533681012
SecurityMX:MP / MP Materials Corp.
InstitutionSapient Capital Llc
Latest Disclosed Ownership107,521 shares
Latest Disclosed Value $ 5,188,963
Sapient Capital Llc reports 3.13% decrease in ownership of MP / MP Materials Corp.

On April 8, 2026 - Sapient Capital Llc filed a 13F-HR form disclosing ownership of 107,521 shares of MP Materials Corp. (MX:MP) valued at $5,188,963 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 110,991 shares of MP Materials Corp.. This represents a change in shares of -3.13% 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)
2026-04-08 2026-03-31 13F MP MATERIALS COM CL A 553368101 107,521 -3,470 -3.13 5,189 -7.32 0.0783
2026-02-05 2025-12-31 13F MP MATERIALS COM CL A 553368101 110,991 -5,000 -4.31 5,598 -29.21 0.0786
2025-10-17 2025-09-30 13F MP MATERIALS COM CL A 553368101 115,991 48,605 72.13 7,908 252.88 0.1217
2025-07-09 2025-06-30 13F MP MATERIALS COM CL A 553368101 67,386 -54,305 -44.63 2,242 -24.55 0.0401
2025-04-15 2025-03-31 13F MP MATERIALS COM CL A 553368101 121,691 -250 -0.21 2,970 56.15 0.0586
2025-01-29 2024-12-31 13F MP MATERIALS COM CL A 553368101 121,941 0 0.00 1,902 -11.62 0.0363
2024-10-11 2024-09-30 13F MP MATERIALS COM CL A 553368101 121,941 0 0.00 2,152 38.66 0.0432
2024-07-15 2024-06-30 13F MP MATERIALS COM CL A 553368101 121,941 0 0.00 1,552 -10.96 0.0323
2024-04-22 2024-03-31 13F MP MATERIALS COM CL A 553368101 121,941 0 0.00 1,744 -27.98 0.0386
2024-02-06 2023-12-31 13F/A-1 MP MATERIALS COM CL A 553368101 121,941 121,941 2,421 0.0624
2024-01-29 2023-12-31 13F MP MATERIALS COM CL A 553368101 121,941 121,941 2,421 0.0753
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.