Position in MTRN
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$1,654,217
+$246,045 QoQ
Shares Held
11,436
+1.0% QoQ
Ownership
0.055%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 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, 2026MetLife Investment Management, LLC holds $8,144,247 across 8 Other Industrial Metals & Mining names. MTRN ranks #2 (20.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MP |
MP Materials Corp. / DE
|
66,383 | $3,203,643 | |
| 2 | MTRN |
MATERION Corp
This page
|
11,436 | $1,654,217 | |
| 3 | USAR |
USA Rare Earth, Inc.
|
100,568 | $1,522,096 | |
| 4 | UAMY |
United States Antimony Corp
|
61,282 | $534,991 | |
| 5 | CMP |
Compass Minerals International Inc
|
19,363 | $452,126 | |
| 6 | NB |
Niocorp Developments Ltd
|
60,839 | $271,341 | |
| 7 | CRML |
Critical Metals Corp.
|
32,394 | $257,208 | |
| 8 | GSM |
Ferroglobe PLC
|
60,346 | $248,625 |
All Filings in MTRN
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,654,217 | 11,436 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $1,408,172 | 11,327 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $1,462,405 | 12,105 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $982,918 | 12,384 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $1,010,534 | 12,384 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $1,244,305 | 12,584 | Shares | Defined | 2025-02-13 | |
| 2024-09-30 | $1,312,229 | 11,731 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $1,268,473 | 11,731 | Shares | Defined | 2024-08-13 | |
| 2024-03-31 | $1,381,530 | 10,486 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $1,405,664 | 10,802 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $1,100,831 | 10,802 | Shares | Defined | 2024-05-09 | |
| 2023-06-30 | $1,233,588 | 10,802 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $1,238,764 | 10,679 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $934,519 | 10,679 | Shares | Defined | 2023-03-23 | |
| 2022-09-30 | $880,640 | 11,008 | Shares | Defined | 2023-03-23 | |
| 2022-06-30 | $811,619 | 11,008 | Shares | Defined | 2023-03-23 | |
| 2022-03-31 | $943,825 | 11,008 | Shares | Defined | 2023-03-23 | |
| 2021-12-31 | $673,092 | 7,321 | Shares | Defined | 2023-03-23 | |
| 2021-09-30 | $502,513 | 7,321 | Shares | Defined | 2023-03-23 | |
| 2021-06-30 | $551,637 | 7,321 | Shares | Defined | 2023-03-23 | |
| 2021-03-31 | $484,943 | 7,321 | Shares | Defined | 2023-03-23 | |
| 2020-12-31 | $571,249 | 8,965 | Shares | Defined | 2023-03-23 | |
| 2020-09-30 | $466,448 | 8,965 | Shares | Defined | 2023-03-23 | |
| 2020-06-30 | $551,257 | 8,965 | Shares | Defined | 2023-03-23 | |
| 2020-03-31 | $281,410 | 8,038 | Shares | Defined | 2023-03-23 | |
| No filing history on record for this holder in this stock. | ||||||