Matrix Service
MTRX
144 hedge funds and large institutions have $279M invested in Matrix Service in 2026 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 63 increasing their positions, 46 reducing their positions, and 19 closing their positions.
37% more repeat investments, than reductions
Existing positions increased: 63 | Existing positions reduced: 46
11% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 19
0% more funds holding
Funds holding: 144 → 144 (0)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.93% less ownership
Funds ownership: 87.21% → 86.28% (-0.93%)
3% less capital invested
Capital invested by funds: $287M → $279M (-$8.55M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Two Sigma Investments
New York
|
+$5.21M |
| 2 |
Marshall Wace
London,
United Kingdom
|
+$3.36M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$2.9M |
| 4 |
CC
Congruence Capital
Los Angeles,
California
|
+$2.51M |
| 5 |
First Eagle Investment Management
New York
|
+$2.51M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$19.9M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$3.12M |
| 3 |
OAM
Oberweis Asset Management
Lisle,
Illinois
|
-$2.65M |
| 4 |
CP
CenterBook Partners
Greenwich,
Connecticut
|
-$2.41M |
| 5 |
SLG
Stanley-Laman Group
Berwyn,
Pennsylvania
|
-$2.12M |
MTRX Hedge Fund Activity: Q1 2026 in Review
144 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Matrix Service (MTRX) for Q1 2026, worth a combined $279M — down 3% from $287M a quarter earlier.
Buyers outnumbered sellers: 21 funds opened new MTRX positions and 19 closed out — a net gain of 2 holders — while 63 added to existing stakes and 46 trimmed.
The largest buyer was Two Sigma Investments, adding an estimated $5.21M. The largest seller was BlackRock, cutting an estimated $19.9M.
- 144 institutional investors held Matrix Service (MTRX) as of Q1 2026, unchanged from Q4 2025.
- Funds reported $279M of Matrix Service stock for Q1 2026, down 3% quarter-over-quarter.
- 21 funds opened new Matrix Service positions in Q1 2026 and 19 closed out, a net change of +2 holders.
- The largest Matrix Service buyer in Q1 2026 was Two Sigma Investments, an estimated $5.21M added.
- The largest Matrix Service seller in Q1 2026 was BlackRock, an estimated $19.9M sold.
Based on aggregated 13F filings for Q1 2026.