Materion
MTRN
402 hedge funds and large institutions have $6.03B invested in Materion in 2026 Q2 according to their latest regulatory filings, with 105 funds opening new positions, 129 increasing their positions, 125 reducing their positions, and 30 closing their positions.
767% more call options, than puts
Call options by funds: $30.4M | Put options by funds: $3.51M
250% more first-time investments, than exits
New positions opened: 105 | Existing positions closed: 30
109% more capital invested
Capital invested by funds: $2.88B → $6.03B (+$3.14B)
100% more funds holding in top 10
Funds holding in top 10: 3 → 6 (+3)
20% more funds holding
Funds holding: 334 → 402 (+68)
1.55% more ownership
Funds ownership: 96.08% → 97.62% (+1.5%)
3% more repeat investments, than reductions
Existing positions increased: 129 | Existing positions reduced: 125
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$63.8M |
| 2 |
Capital Research Global Investors
Los Angeles,
California
|
+$44.1M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$33.2M |
| 4 |
SC
Samlyn Capital
New York
|
+$31.8M |
| 5 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$28.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AAM
ACK Asset Management
Greenwich,
Connecticut
|
-$71.2M |
| 2 |
Dimensional Fund Advisors
Austin,
Texas
|
-$64.3M |
| 3 |
Capital World Investors
Los Angeles,
California
|
-$60M |
| 4 |
American Century Companies
Kansas City,
Missouri
|
-$55.8M |
| 5 |
TI
Trigran Investments
Northbrook,
Illinois
|
-$23.9M |
MTRN Hedge Fund Activity: Q2 2026 in Review
402 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Materion (MTRN) for Q2 2026, worth a combined $6.03B — up 109% from $2.88B a quarter earlier.
Buyers outnumbered sellers: 105 funds opened new MTRN positions and 30 closed out — a net gain of 75 holders — while 129 added to existing stakes and 125 trimmed.
The largest buyer was T. Rowe Price Associates, adding an estimated $63.8M. The largest seller was ACK Asset Management, cutting an estimated $71.2M.
- 402 institutional investors held Materion (MTRN) as of Q2 2026, up from 334 in Q1 2026.
- Funds reported $6.03B of Materion stock for Q2 2026, up 109% quarter-over-quarter.
- 105 funds opened new Materion positions in Q2 2026 and 30 closed out, a net change of +75 holders.
- The largest Materion buyer in Q2 2026 was T. Rowe Price Associates, an estimated $63.8M added.
- The largest Materion seller in Q2 2026 was ACK Asset Management, an estimated $71.2M sold.
Based on aggregated 13F filings for Q2 2026.