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MTRX · NASDAQ

$10.09−$0.12 (−1.18%)TodayMarket closed ·
Prev close $10.21

Who owns MTRX

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 39.5% of MTRX’s shares.

  • BlackRock Institutional Trust Company, N.A.6.9%
  • Needham Investment Management L.L.C.5.1%
  • American Century Investment Management, Inc.4.3%
  • Tontine Asset Management, LLC4.2%
  • Next 6 largest institutions19.0%
  • All other shareholders60.5%
Top institutional holders of MTRX
HolderShares% of shares
BlackRock Institutional Trust Company, N.A.1.93M6.87%
Needham Investment Management L.L.C.1.44M5.10%
American Century Investment Management, Inc.1.21M4.29%
Tontine Asset Management, LLC1.19M4.24%
Vanguard Capital Management, LLC1.19M4.22%
First Eagle Investment Management, L.L.C.990.22K3.52%
Acadian Asset Management LLC871.50K3.10%
Harvey Partners, LLC815.02K2.90%
Two Sigma Investments, LP748.12K2.66%
Geode Capital Management, L.L.C.721.32K2.56%

Largest mutual fund holders

Top mutual fund holders of MTRX
HolderShares% of shares
Needham Aggressive Growth Fund1.44M5.10%
Avantis US Small Cap Value ETF1.22M4.35%
First Eagle Small Cap Opportunity Fund858.57K3.05%
Vanguard Total Stock Market Index Fund839.78K2.99%
iShares Russell 2000 ETF702.89K2.50%

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $2.30M (7 trades) of MTRX on the open market, with no buys.

Latest MTRX insider transactions
InsiderTypeSharesValue
MILLER DAVID (JAMES)Option exercise967—
MILLER DAVID (JAMES)Tax withholding380$4.12K
MILLER DAVID (JAMES)Other967$10.47K
MILLER DAVID (JAMES)Option exercise967—
PAYNE SHAWN POption exercise2.82K—
PAYNE SHAWN PTax withholding1.11K$12.00K
PAYNE SHAWN POther2.82K$30.51K
PAYNE SHAWN POption exercise2.82K—
SHEETS JUSTIN DOption exercise2.58K—
SHEETS JUSTIN DTax withholding962$10.42K

Short interest

Settled Sep 30, 2026

Shares short
1.15M
Days to cover
2.17
% of shares outstanding
4.07%
Average daily volume
528.46K
Change since last report
−0.4%

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