Position in MTRN
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$518,945
+$304,618 QoQ
Shares Held
1,745
+1.2% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#225
of 400 holders
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in MTRN Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Jun 30, 2026Mariner, LLC holds $29,444,893 across 16 Other Industrial Metals & Mining names. MTRN ranks #5 (1.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RIO |
Rio Tinto PLC
|
114,214 | $10,842,334 | |
| 2 | BHP |
BHP Group Ltd
|
128,577 | $10,711,749 | |
| 3 | VALE |
Vale S.A.
|
274,172 | $4,123,546 | |
| 4 | CMP |
Compass Minerals International Inc
|
50,519 | $1,572,656 | |
| 5 | MTRN |
MATERION Corp
This page
|
1,745 | $518,945 | |
| 6 | IPX |
IPERIONX Ltd
|
13,613 | $404,714 | |
| 7 | MP |
MP Materials Corp. / DE
|
6,287 | $352,134 | |
| 8 | ALM |
Almonty Industries Inc.
|
12,422 | $205,708 |
All Filings in MTRN
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $518,945 | 1,745 | Shares | Sole | 2026-08-13 | |
| 2025-12-31 | $214,327 | 1,724 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $390,216 | 3,230 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||