Materion
MTRN
301 hedge funds and large institutions have $2.4B invested in Materion in 2025 Q3 according to their latest regulatory filings, with 77 funds opening new positions, 100 increasing their positions, 89 reducing their positions, and 28 closing their positions.
2,024% more call options, than puts
Call options by funds: $6.42M | Put options by funds: $302K
175% more first-time investments, than exits
New positions opened: 77 | Existing positions closed: 28
56% more capital invested
Capital invested by funds: $1.55B → $2.4B (+$859M)
50% more funds holding in top 10
Funds holding in top 10: 2 → 3 (+1)
18% more funds holding
Funds holding: 256 → 301 (+45)
12% more repeat investments, than reductions
Existing positions increased: 100 | Existing positions reduced: 89
2.57% more ownership
Funds ownership: 93.5% → 96.07% (+2.6%)
Top Buyers
| 1 |
HP
Harvey Partners
Tarrytown,
New York
|
+$33.4M |
| 2 |
Morgan Stanley
New York
|
+$17.7M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
+$13.3M |
| 4 |
JP Morgan Chase
New York
|
+$12.2M |
| 5 |
Raymond James Financial
St Petersburg,
Florida
|
+$11.4M |
Top Sellers
MTRN Hedge Fund Activity: Q3 2025 in Review
301 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Materion (MTRN) for Q3 2025, worth a combined $2.4B — up 56% from $1.55B a quarter earlier.
Buyers outnumbered sellers: 77 funds opened new MTRN positions and 28 closed out — a net gain of 49 holders — while 100 added to existing stakes and 89 trimmed.
The largest buyer was Harvey Partners, opening a new position worth an estimated $33.4M. The largest seller was Trigran Investments, cutting an estimated $31.6M.
- 301 institutional investors held Materion (MTRN) as of Q3 2025, up from 256 in Q2 2025.
- Funds reported $2.4B of Materion stock for Q3 2025, up 56% quarter-over-quarter.
- 77 funds opened new Materion positions in Q3 2025 and 28 closed out, a net change of +49 holders.
- The largest Materion buyer in Q3 2025 was Harvey Partners, an estimated $33.4M added.
- The largest Materion seller in Q3 2025 was Trigran Investments, an estimated $31.6M sold.
Based on aggregated 13F filings for Q3 2025.