Matrix Service
MTRX
144 hedge funds and large institutions have $287M invested in Matrix Service in 2025 Q4 according to their latest regulatory filings, with 21 funds opening new positions, 58 increasing their positions, 49 reducing their positions, and 17 closing their positions.
198% more call options, than puts
Call options by funds: $697K | Put options by funds: $234K
24% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 17
18% more repeat investments, than reductions
Existing positions increased: 58 | Existing positions reduced: 49
0.77% more ownership
Funds ownership: 86.45% → 87.21% (+0.77%)
1% more funds holding
Funds holding: 143 → 144 (+1)
8% less capital invested
Capital invested by funds: $312M → $287M (-$25.1M)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$4.8M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$2.87M |
| 3 |
CP
CenterBook Partners
Greenwich,
Connecticut
|
+$2.84M |
| 4 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$2.21M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$2.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RA
Royce & Associates
New York
|
-$5.4M |
| 2 |
ACA
AYAL Capital Advisors
Toronto,
Ontario, Canada
|
-$2.94M |
| 3 |
EIM
Essex Investment Management
Boston,
Massachusetts
|
-$2.78M |
| 4 |
1CM
1492 Capital Management
Milwaukee,
Wisconsin
|
-$2.05M |
| 5 |
Millennium Management
New York
|
-$1.81M |
MTRX Hedge Fund Activity: Q4 2025 in Review
144 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Matrix Service (MTRX) for Q4 2025, worth a combined $287M — down 8% from $312M a quarter earlier.
Buyers outnumbered sellers: 21 funds opened new MTRX positions and 17 closed out — a net gain of 4 holders — while 58 added to existing stakes and 49 trimmed.
The largest buyer was BlackRock, adding an estimated $4.8M. The largest seller was Royce & Associates, cutting an estimated $5.4M.
- 144 institutional investors held Matrix Service (MTRX) as of Q4 2025, up from 143 in Q3 2025.
- Funds reported $287M of Matrix Service stock for Q4 2025, down 8% quarter-over-quarter.
- 21 funds opened new Matrix Service positions in Q4 2025 and 17 closed out, a net change of +4 holders.
- The largest Matrix Service buyer in Q4 2025 was BlackRock, an estimated $4.8M added.
- The largest Matrix Service seller in Q4 2025 was Royce & Associates, an estimated $5.4M sold.
Based on aggregated 13F filings for Q4 2025.