🕵️ Matrix Service Co ($MTRX)

SEC insider & ownership activity, last 12 months · CIK 866273 · every row links its SEC filing

Over the last 12 months insiders sold $2.5M against $29K of open-market buying. Kevin S. Cavanah sold $1.6M through a 10b5-1 trading plan in 5 lots (May–Jun). Blackrock, Inc. trimmed 12.4% → 6.8%. No red-flag 8-Ks in the window.

Aug 2025: net +$0 Sep 2025: net +$29K Oct 2025: net +$0 Nov 2025: net -$198K Dec 2025: net +$0 Jan 2026: net +$0 Mar 2026: net +$0 Mar 2026: net +$0 Apr 2026: net +$0 May 2026: net -$1.2M Jun 2026: net -$1.1M Jul 2026: net +$0
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

1 buyer, $29K (1 lots) · 5 sellers, $2.5M (11 lots)

InsiderBuysBoughtSellsSoldLast
Kevin S. Cavanah0 5$1.6MJun 15, 2026
John R. Hewitt0 1$450KMay 8, 2026
Justin Sheets0 1$229KJun 12, 2026
Shawn P Payne0 3$198KNov 25, 2025
Nancy E. Austin0 1$47KFeb 18, 2026
John D. Chandler1$29K 0Sep 16, 2025

5%+ holders

HolderStakeClassScheduleEvent
Blackrock, Inc. 6.8% 13GApr 7, 2026 filing ↗
Needham Investment Management LLC 5.2% 13GFeb 13, 2025 filing ↗
Needham Asset Management, LLC 5.2% 13GFeb 13, 2025 filing ↗
Needham Aggressive Growth Fund 5.2% 13GFeb 13, 2025 filing ↗
George A. Needham 5.2% 13GFeb 13, 2025 filing ↗

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Justin Sheets$229KJun 12, 2026 filing ↗
Kevin S. Cavanah$840KJun 4, 2026 filing ↗
Kevin S. Cavanah$764KMay 26, 2026 filing ↗
John R. Hewitt$438KMay 8, 2026 filing ↗
Shawn P Payne$60KNov 25, 2025 filing ↗
Shawn P Payne$34KNov 20, 2025 filing ↗
Shawn P Payne$104KNov 11, 2025 filing ↗

Material events (8-K)

ItemEvent date
Officer/director changes (5.02)Jun 28, 2026 filing ↗
Earnings (2.02)May 6, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 6, 2026 filing ↗
Officer/director changes (5.02)Apr 28, 2026 filing ↗
Earnings (2.02)Feb 4, 2026 filing ↗
Financial Statements and Exhibits (9.01)Feb 4, 2026 filing ↗
Officer/director changes (5.02)Dec 30, 2025 filing ↗
Earnings (2.02)Nov 5, 2025 filing ↗
Financial Statements and Exhibits (9.01)Nov 5, 2025 filing ↗
Shareholder vote (5.07)Nov 4, 2025 filing ↗
Earnings (2.02)Sep 9, 2025 filing ↗
Financial Statements and Exhibits (9.01)Sep 9, 2025 filing ↗
Material agreement (1.01)Aug 22, 2025 filing ↗
Financial Statements and Exhibits (9.01)Aug 22, 2025 filing ↗