Industry - Engineering Services

Include option trades

Include indirect trades

Latest data: 3/20/2026 10:04:43 PM

1 Month

Buy/Sell Ratio 0.00

0%

100%

Buy	Sell
--	($490,920)
0 Insiders	1 Insiders
0 Transactions	1 Transactions

2/20/2026 to 3/20/2026

3 Month

Buy/Sell Ratio 0.00

0%

100%

Buy	Sell
--	($892,325)
0 Insiders	2 Insiders
0 Transactions	2 Transactions

12/20/2025 to 3/20/2026

6 Month

Buy/Sell Ratio 0.00

0%

100%

Buy	Sell
--	($892,325)
0 Insiders	2 Insiders
0 Transactions	2 Transactions

9/20/2025 to 3/20/2026

12 Month

Buy/Sell Ratio 0.00

0%

100%

Buy	Sell
$77,100	($29.43) M
1 Insiders	8 Insiders
1 Transactions	11 Transactions

3/20/2025 to 3/20/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
Stamatakis Manuel N. Mistras Group, Inc.	$77,100	1

Most Insider Selling

12 months

Name	Value	Transactions
Brisbin Thomas Donald Willdan Group, Inc.	($26,608,903)	3
Cohen Steven A Willdan Group, Inc.	($781,770)	2
Mcginn Dennis V Willdan Group, Inc.	($775,923)	1
Carter Brian N Tetra Tech Inc	($401,405)	1
Britt Anita D Vse Corp	($371,191)	1
Downes Cynthia Willdan Group, Inc.	($302,355)	1
Reder Wanda Kay Willdan Group, Inc.	($101,541)	1
Birkenbeuel Gary Tetra Tech Inc	($86,050)	1

Most Unique Insiders Buying (>25K)

12 months

Name	Unique insiders	Total Trades
Mistras Group, Inc.	1	1

Most Unique Insiders Selling (>25K)

12 months

Name	Unique insiders	Total Trades
Willdan Group, Inc.	5	8
Tetra Tech Inc	2	2
Vse Corp	1	1

Companies with activity

	1 Month			6 Month			12 Month
Name	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $
Willdan Group, Inc.	0.00	$0	($490,920)	0.00	$0	($490,920)	0.00	$0	($28,570,492)
Tetra Tech Inc	--	$0	$0	0.00	$0	($401,405)	0.00	$0	($487,455)
Mistras Group, Inc.	--	$0	$0	--	$0	$0	--	$77,100	$0
Vse Corp	--	$0	$0	--	$0	$0	0.00	$0	($371,191)