Security key
576853105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 24,270,484
- Total 13F value
- $278,598,062
- Share change
- -388,649
- Put/Call ratio
- 0%
- SEC-reported price per share
- $11.48
- Number of holders
- 143
- Value change
- -$4,637,493
- Number of buys
- 77
- Number of sells
- 66
- Shares outstanding
- 28,246,015
Holder snapshot
7 signals
Show 1 more signal
Security identity
Who this page is about.
1 source field
Report period
Q1 2026
Institutions
143
Top holders
10
MTRX full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
MATRIX SERVICE CO SEC filings
MATRIX SERVICE CO company facts
Broader feeds
Reporting periods
Holder history for CUSIP 576853105
Recent filing periods:
Ownership snapshot
Top reported holders of MTRX - MATRIX SERVICE CO - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2025
13F
13D/G
3/4/5
Lead comparable stake: 6.8%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 6.8%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
BlackRock, Inc.
6.8%
NEEDHAM INVESTMENT MANAGEMENT LLC
5.2%
FIRST WILSHIRE SECURITIES MANAGEM...
4.9%
Harvey Partners, LLC
4.4%
Azarias Capital Management, L.P.
4.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
6.8%
from 13D/G
|
$43,135,385
3,686,785 shares
|
— | 31 Dec 2025 |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$16,789,500
1,435,000 shares
|
— | 31 Dec 2025 |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC |
13D/G
13F
Company
|
4.9%
|
$15,566,268
1,346,563 shares
|
$0 | 31 Dec 2024 |
| Harvey Partners, LLC |
13D/G
13F
Company
|
4.4%
|
$16,334,958
1,221,762 shares
|
$0 | 30 Jun 2025 |
| Azarias Capital Management, L.P. |
13D/G
13F
Company
|
4.4%
|
$14,050,197
1,215,415 shares
|
-$2,544,980 | 31 Dec 2024 |
| James H. Miller |
3/4/5
Director
|
0.33%
|
$1,204,407
92,078 shares
|
— | 04 Nov 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
143
Shares
24,270,484
Rows available
143
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
144
Q1 2026 holders
143
Holder diff
-1
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend