Position in MTRN
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$3,861,609
+$1,195,276 QoQ
Shares Held
12,985
-29.6% QoQ
Ownership
0.062%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#105
of 400 holders
Holding Since
Jun 2020
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MTRN Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Jun 30, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $667,454,082 across 8 Other Industrial Metals & Mining names. MTRN ranks #4 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VALE |
Vale S.A.
|
31,949,655 | $480,522,811 | |
| 2 | RIO |
Rio Tinto PLC
|
1,715,018 | $162,806,658 | |
| 3 | CMP |
Compass Minerals International Inc
|
474,512 | $14,771,558 | |
| 4 | MTRN |
MATERION Corp
This page
|
12,985 | $3,861,609 | |
| 5 | WRN |
Western Copper & Gold Corp
|
1,580,030 | $3,539,267 | |
| 6 | NEXA |
Nexa Resources S.A.
|
126,387 | $1,546,976 | |
| 7 | SGML |
Sigma Lithium Corp
|
21,271 | $269,078 | |
| 8 | SLI |
Standard Lithium Ltd.
|
49,500 | $136,125 |
All Filings in MTRN
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,861,609 | 12,985 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $2,666,333 | 18,433 | Shares | Defined | 2026-05-14 | |
| 2021-03-31 | $284,832 | 4,300 | Shares | Defined | 2021-05-14 | |
| 2020-06-30 | $790,392 | 12,854 | Shares | Defined | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||