Position in MP
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$778,875
-$44,490 QoQ
Shares Held
13,906
-43.8% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#333
of 750 holders
Holding Since
Dec 2020
20 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MP Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $846,560 across 2 Other Industrial Metals & Mining names. MP ranks #1 (92.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MP |
MP Materials Corp. / DE
This page
|
13,906 | $778,875 | |
| 2 | RIO |
Rio Tinto PLC
|
713 | $67,685 |
All Filings in MP
Export CSV
20 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $778,875 | 13,906 | Shares | Sole | 2026-08-06 | |
| 2025-06-30 | $823,365 | 24,748 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $1,824,867 | 74,759 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $1,992,213 | 127,706 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $2,094,137 | 118,648 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $1,201,928 | 94,417 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $1,350,163 | 94,417 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $2,271,872 | 114,452 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $3,607,665 | 188,883 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $2,901,138 | 126,798 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $3,598,256 | 127,643 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $3,200,783 | 131,828 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $3,698,849 | 135,489 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $4,723,459 | 147,240 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $8,628,752 | 150,484 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $6,807,095 | 149,870 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $4,389,113 | 136,181 | Shares | Sole | 2021-11-09 | |
| 2021-06-30 | $4,419,808 | 119,908 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $4,080,792 | 113,513 | Shares | Sole | 2021-05-12 | |
| 2020-12-31 | $2,771,702 | 86,158 | Shares | Sole | 2021-02-12 | |
| No filing history on record for this holder in this stock. | ||||||