MP Materials Corp.
US ˙ NYSE ˙ US5533681012

SecurityMP / MP Materials Corp.
InstitutionSmartleaf Asset Management LLC
Latest Disclosed Ownership1,035 shares
Latest Disclosed Value $ 47,186
Smartleaf Asset Management LLC reports 41.43% decrease in ownership of MP / MP Materials Corp.

On May 15, 2026 - Smartleaf Asset Management LLC filed a 13F-HR form disclosing ownership of 1,035 shares of MP Materials Corp. (US:MP) valued at $49,949 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,767 shares of MP Materials Corp.. This represents a change in shares of -41.43% during the quarter. The current value of the position is $70,949 USD.

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)
2026-05-15 2026-03-31 13F MP MATERIALS COM CL A 553368101 1,035 -732 -41.43 47 -47.19 0.0017
2026-02-13 2025-12-31 13F MP MATERIALS COM CL A 553368101 1,767 -81 -4.38 89 -28.80 0.0034
2025-11-05 2025-09-30 13F MP MATERIALS COM CL A 553368101 1,848 398 27.45 126 165.96 0.0078
2025-08-14 2025-06-30 13F MP MATERIALS COM CL A 553368101 1,450 1,016 234.10 48 327.27 0.0042
2025-05-14 2025-03-31 13F MP MATERIALS COM CL A 553368101 434 89 25.80 11 120.00 0.0011
2025-02-05 2024-12-31 13F MP MATERIALS COM CL A 553368101 345 180 109.09 6 66.67 0.0006
2024-11-13 2024-09-30 13F MP MATERIALS COM CL A 553368101 165 106 179.66 3 0.0004
2024-10-08 2024-06-30 13F/A-1 MP MATERIALS COM CL A 553368101 59 -634 -91.49 1 -100.00 0.0001
2024-08-13 2024-06-30 13F MP MATERIALS COM CL A 553368101 59 -634 1 0.0001
2024-10-07 2024-03-31 13F/A-1 MP MATERIALS COM CL A 553368101 693 -799 -53.55 10 -66.67 0.0019
2024-05-03 2024-03-31 13F MP MATERIALS COM CL A 553368101 693 -799 14 0.0034
2024-02-12 2023-12-31 13F MP MATERIALS COM CL A 553368101 1,492 1,492 31 0.0082
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.