MP Materials Corp.
US ˙ NYSE ˙ US5533681012

SecurityMP / MP Materials Corp.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership192,397 shares
Latest Disclosed Value $ 9,285,079
Northwestern Mutual Wealth Management Co reports 8.70% decrease in ownership of MP / MP Materials Corp.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 192,397 shares of MP Materials Corp. (US:MP) valued at $9,285,079 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 210,737 shares of MP Materials Corp.. This represents a change in shares of -8.70% during the quarter. The current value of the position is $11,386,054 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)
2026-05-07 2026-03-31 13F MP MATERIALS COM CL A 553368101 192,397 -18,340 -8.70 9,285 -12.78 0.0057
2026-02-10 2025-12-31 13F/A-1 MP MATERIALS COM CL A 553368101 210,737 96,779 84.93 10,646 39.29 0.0067
2026-02-05 2025-12-31 13F MP MATERIALS COM CL A 553368101 71,475 -42,483 2,526 0.0016
2025-11-14 2025-09-30 13F MP MATERIALS COM CL A 553368101 113,958 -17,777 -13.49 7,643 74.42 0.0051
2025-08-13 2025-06-30 13F MP MATERIALS COM CL A 553368101 131,735 -63,297 -32.45 4,383 -7.94 0.0032
2025-05-14 2025-03-31 13F MP MATERIALS COM CL A 553368101 195,032 11,783 6.43 4,761 66.55 0.0039
2025-02-11 2024-12-31 13F MP MATERIALS COM CL A 553368101 183,249 34,007 22.79 2,859 8.50 0.0024
2024-11-12 2024-09-30 13F MP MATERIALS COM CL A 553368101 149,242 44,765 42.85 2,634 98.19 0.0023
2024-08-16 2024-06-30 13F MP MATERIALS COM CL A 553368101 104,477 38,377 58.06 1,330 40.63 0.0013
2024-05-15 2024-03-31 13F MP MATERIALS COM CL A 553368101 66,100 13,622 25.96 945 -9.22 0.0010
2024-02-13 2023-12-31 13F MP MATERIALS COM CL A 553368101 52,478 -5,411 -9.35 1,042 -5.79 0.0012
2023-11-14 2023-09-30 13F MP MATERIALS COM CL A 553368101 57,889 35,515 158.73 1,106 116.24 0.0014
2023-08-14 2023-06-30 13F MP MATERIALS COM CL A 553368101 22,374 8,285 58.80 512 28.72 0.0007
2023-05-15 2023-03-31 13F MP MATERIALS COM CL A 553368101 14,089 321 2.33 397 18.86 0.0006
2023-02-21 2022-12-31 13F MP MATERIALS COM CL A 553368101 13,768 3,285 31.34 334 16.78 0.0005
2022-11-14 2022-09-30 13F MP MATERIALS COM CL A 553368101 10,483 6,790 183.86 286 142.37 0.0005
2022-08-04 2022-06-30 13F MP MATERIALS COM CL A 553368101 3,693 162 4.59 118 -41.58 0.0002
2022-05-09 2022-03-31 13F MP MATERIALS COM CL A 553368101 3,531 -453 -11.37 202 11.60 0.0003
2022-02-03 2021-12-31 13F MP MATERIALS COM CL A 553368101 3,984 1,525 62.02 181 129.11 0.0003
2021-11-15 2021-09-30 13F MP MATERIALS COM CL A 553368101 2,459 2,259 1,129.50 79 1,028.57 0.0001
2021-08-13 2021-06-30 13F MP MATERIALS COM CL A 553368101 200 0 0.00 7 0.00 0.0000
2021-05-14 2021-03-31 13F MP MATERIALS COM CL A 553368101 200 200 7 0.0000
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.