Position in MTRN
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$2,666,333
+$2,381,501 QoQ
Shares Held
18,433
+328.7% QoQ
Ownership
0.089%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
3 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in MTRN Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Mar 31, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $1,418,220,562 across 10 Other Industrial Metals & Mining names. MTRN ranks #7 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VALE |
Vale S.A.
|
47,947,703 | $762,847,954 | |
| 2 | RIO |
Rio Tinto PLC
|
3,710,224 | $346,126,796 | |
| 3 | TECK |
Teck Resources Ltd
|
5,270,386 | $272,742,475 | |
| 4 | USAS |
Americas Gold & Silver Corp
|
4,501,488 | $23,497,767 | |
| 5 | WRN |
Western Copper & Gold Corp
|
1,654,741 | $4,186,494 | |
| 6 | NEXA |
Nexa Resources S.A.
|
329,346 | $3,487,774 | |
| 7 | MTRN |
MATERION Corp
This page
|
18,433 | $2,666,333 | |
| 8 | CMP |
Compass Minerals International Inc
|
65,730 | $1,534,795 |
All Filings in MTRN
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3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 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. | ||||||