Position in MTRN
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$6,318,939
+$4,805,324 QoQ
Shares Held
21,248
+103.1% QoQ
Ownership
0.102%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#93
of 400 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 78%
Shared 0%
None 22%
Common Shares in MTRN Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Jun 30, 2026Russell Investments Group, Ltd. holds $81,652,794 across 27 Other Industrial Metals & Mining names. MTRN ranks #4 (7.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VALE |
Vale S.A.
|
2,195,099 | $33,014,286 | |
| 2 | ALM |
Almonty Industries Inc.
|
589,066 | $9,754,932 | |
| 3 | RIO |
Rio Tinto PLC
|
76,751 | $7,285,971 | |
| 4 | MTRN |
MATERION Corp
This page
|
21,248 | $6,318,939 | |
| 5 | NAK |
Northern Dynasty Minerals Ltd
|
3,262,046 | $6,263,126 | |
| 6 | BHP |
BHP Group Ltd
|
74,152 | $6,177,603 | |
| 7 | GSM |
Ferroglobe PLC
|
1,131,818 | $3,599,177 | |
| 8 | UAMY |
United States Antimony Corp
|
264,660 | $1,921,428 |
All Filings in MTRN
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,318,939 | 21,248 | Shares | Defined | 2026-08-06 | |
| 2026-03-31 | $1,513,615 | 10,464 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $1,987,128 | 15,984 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $2,323,053 | 19,229 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $705,914 | 8,894 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $592,169 | 7,257 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $647,365 | 6,547 | Shares | Defined | 2025-02-13 | |
| 2024-09-30 | $942,195 | 8,423 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $935,322 | 8,650 | Shares | Defined | 2024-08-08 | |
| 2024-03-31 | $1,153,075 | 8,752 | Shares | Defined | 2024-05-08 | |
| 2023-12-31 | $1,178,066 | 9,053 | Shares | Sole | 2024-02-05 | |
| 2023-09-30 | $804,069 | 7,890 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $987,487 | 8,647 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $982,868 | 8,473 | Shares | Defined | 2023-05-09 | |
| 2022-12-31 | $838,082 | 9,577 | Shares | Sole | 2023-02-08 | |
| 2022-09-30 | $672,000 | 8,400 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $745,188 | 10,107 | Shares | Defined | 2022-07-29 | |
| 2022-03-31 | $1,812,628 | 21,141 | Shares | Defined | 2022-05-05 | |
| 2021-12-31 | $2,592,614 | 28,199 | Shares | Defined | 2022-01-21 | |
| 2021-09-30 | $2,770,926 | 40,369 | Shares | Sole | 2021-11-08 | |
| 2021-06-30 | $3,957,757 | 52,525 | Shares | Sole | 2021-08-04 | |
| 2021-03-31 | $3,504,558 | 52,907 | Shares | Defined | 2021-05-10 | |
| 2020-12-31 | $2,960,812 | 46,466 | Shares | Defined | 2021-02-08 | |
| 2020-09-30 | $2,526,784 | 48,564 | Shares | Defined | 2020-11-09 | |
| 2020-06-30 | $2,986,199 | 48,564 | Shares | Defined | 2020-08-05 | |
| 2020-03-31 | $1,514,216 | 43,251 | Shares | Defined | 2020-05-06 | |
| No filing history on record for this holder in this stock. | ||||||