InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
T+90 hit rate
20%
T+90 mean return
-4.1%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the complete record of transactions filed by Carnes Martha Z., Director. Director active across 4 companies, notably Matrix Service Co. Cumulatively, 10 reports have been recorded. History available since 2 November 2021. The latest transaction was disclosed on 1 April 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Carnes Martha Z.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations10 total
8,069 shares0Common StockSEC:0001193125-26-145937:0
7,986 shares0COMMON STOCKSEC:0000866273-25-000095:0
9,317 shares0Common StockSEC:0000950170-25-049166:0
8,290 shares0COMMON STOCKSEC:0000866273-24-000102:0
6,419 shares0Common StockSEC:0000950170-24-040323:0
7,991 shares0COMMON STOCKSEC:0000866273-23-000076:0
5,485 shares0Common SharesSEC:0001209191-23-022045:0
11,571 shares0COMMON STOCKSEC:0000866273-22-000129:0
4,307 shares0Common SharesSEC:0001209191-22-022507:0
9,117 shares0COMMON STOCKSEC:0000866273-21-000103:0
10 of 10 declarations
About Carnes Martha Z.
Martha Z. Carnes is a Director at Matrix Service Co and Core Laboratories N V. In her role, she participates in the governance and strategy of the companies, bringing her expertise in management and business development. Martha is involved in strategic decision-making that influences the future direction of the firms. Her diverse experience is a valuable asset to the boards.
