Position in MTRN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$6,203,555
+$641,216 QoQ
Shares Held
20,860
-57.2% QoQ
Ownership
0.100%
of shares outstanding
% of Portfolio
0.23%
of 13F equity value
Holder Rank
#96
of 405 holders
Holding Since
Mar 2021
6 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, 2026Portolan Capital Management, LLC holds $6,203,555 across 1 Other Industrial Metals & Mining name. MTRN ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MTRN |
MATERION Corp
This page
|
20,860 | $6,203,555 |
All Filings in MTRN
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,203,555 | 20,860 | Shares | Sole | 2026-08-14 | |
| 2023-06-30 | $5,562,339 | 48,707 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $2,905,568 | 25,048 | Shares | Sole | 2023-05-15 | |
| 2022-06-30 | $3,289,390 | 44,614 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $3,337,172 | 38,922 | Shares | Sole | 2022-05-16 | |
| 2021-03-31 | $6,283,923 | 94,866 | Shares | Sole | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||