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FRONTIER CAPITAL MANAGEMENT CO LLC

Position in MP — MP Materials Corp. / DE

CIK 351173 Boston, MA

Position in MP

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$13,124,375
-$74,493 QoQ
Shares Held
234,322
-14.3% QoQ
Ownership
0.132%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#77
of 750 holders
Holding Since
Mar 2023
14 quarters on record
Voting authority Sole 60% Shared 0% None 40%

Common Shares in MP Over Time

Shares Held

Position Value (USD)

Position in Other Industrial Metals & Mining

Basic Materials · as of Jun 30, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $44,322,221 across 2 Other Industrial Metals & Mining names. MP ranks #2 (29.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MP
MP Materials Corp. / DE
This page
234,322 $13,124,375

All Filings in MP

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14 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $13,124,375 234,322
2026-03-31 $13,198,868 273,495
2025-12-31 $10,346,445 204,799
2025-09-30 $11,392,174 169,855
2025-06-30 $17,928,404 538,876
2025-03-31 $14,141,909 579,349
2024-12-31 $9,298,863 596,081
2024-09-30 $12,633,358 715,771
2024-06-30 $6,682,995 524,980
2024-03-31 $5,698,421 398,491
2023-12-31 $8,367,688 421,546
2023-09-30 $19,605,806 1,026,482
2023-06-30 $28,241,676 1,234,339
2023-03-31 $23,875,548 846,951