Ticker · CUSIP 576853105
···Share
Holders (tracked)
10
Combined shares
2,462,703
Combined value
$28.19M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
1082024Q12025Q4

SEC event timeline

16 events
  1. +175,366 shares · 2025Q4
    13F
  2. +76,952 shares · 2025Q4
    13F
  3. +149,979 shares · 2025Q4
    13F
  4. −143,728 shares · 2025Q4
    13F
  5. +115,788 shares · 2025Q4
    13F
  6. +5,795 shares · 2025Q4
    13F
  7. +58,538 shares · 2025Q4
    13F
  8. +6,000 shares · 2025Q4
    13F
  9. +58,209 shares · 2025Q4
    13F
  10. −5,989 shares · 2025Q3
    13F
  11. +50,731 shares · 2025Q3
    13F
  12. +9,506 shares · 2025Q3
    13F
  13. +200,189 shares · 2025Q3
    13F
  14. +4,370 shares · 2025Q3
    13F
  15. +11,400 shares · 2025Q3
    13F
  16. +72,680 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Trimmed1
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
8
$30.0M
2022Q2
9
$12.9M
2022Q3
7
$9K
2022Q4
10
$11.7M
2023Q1
10
$7.7M
2023Q2
9
$8.3M
2023Q3
10
$16.9M
2023Q4
8
$16.6M
2024Q1
8
$34.4M
2024Q2
9
$43.1M
2024Q3
9
$12.3M
2024Q4
9
$8.1M
2025Q1
7
$11.7M
2025Q2
7
$21.1M
2025Q3
9
$24.9M
2025Q4
10
$28.2M

Who owns MTRX

10 super-investors · 2025Q4
Tracked stake
2.46M
shares
Combined value
$28M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added8Trim1
#ManagerSharesValue
1First Eagle Investment Management640.1K$7M
2Izzy Englander
Millennium Mgmt
486.7K$6M
3AQR Capital Management365.2K$4M
4Renaissance Technologies250.6K$3M
5Ken Griffin
Citadel Advisors
228.4K$3M
6Two Sigma Investments200.7K$2M
7Steve Cohen
Point72
115.8K$1M
8D.E. Shaw & Co.100.4K$1M
9Ken Griffin
Citadel Advisors
21.6K$253K
10T. Rowe Price53.2K$623

Recent moves

20 transactions
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