Willdan Group, Inc. (WLDN) Insider Trading

Last 12 months

Insiders sold $12.5M and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. PRESIDENT AND CEO Michael A Bieber sold $5.19M on May 14, 19% of their stake, outside a plan. The last open-market buy by an executive or director was in Jun 2020.

Net open-market

−$12.5M

0 buys · 6 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 3

executives and directors

Last open-market buy

Jun 2020

Jun 11, 2020

Get an email when WLDN's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 15	Thomas Donald Brisbin Director	SoldNo plan 2 parts	4,905	$79.36 average	$389k	4.8%	Form 4
Sep 8	Thomas Donald Brisbin Director	SoldNo plan	3,439	$88.19	$303k	3.4%	Form 4
Sep 3	Thomas Donald Brisbin Director	SoldNo plan	58,757	$88.14	$5.18M	38%	Form 4
May 14	Michael A Bieber PRESIDENT AND CEO	SoldNo plan 4 parts	56,676	$91.58 average	$5.19M	19%	Form 4
May 13	Michael A Bieber PRESIDENT AND CEO	SoldNo plan	9,991	$92.65	$926k	3.8%	Form 4
Mar 6	Steven A Cohen Director	SoldNo plan	6,000	$81.82	$491k	22%	Form 4
Sep 18, 2025	Micah Chen EXECUTIVE VP & GENERAL COUNSEL	SoldNo plan	10,000	$106.00	$1.06M	20%	Form 4
Sep 18, 2025	Dennis V McGinn Director	SoldNo plan	7,298	$106.32	$776k	39%	Form 4
Aug 25, 2025	Thomas Donald Brisbin Director	SoldNo plan	5,182	$118.15	$612k	6.8%	Form 4
Aug 22, 2025	Thomas Donald Brisbin Director	SoldNo plan 7 parts	117,595	$108.72 average	$12.8M	62%	Form 4
Aug 21, 2025	Thomas Donald Brisbin Director	SoldNo plan 6 parts	125,000	$104.42 average	$13.1M	40%	Form 4
Aug 20, 2025	Thomas Donald Brisbin Director	SoldNo plan	7,405	$104.19	$772k	2.3%	Form 4
Aug 18, 2025	Thomas Donald Brisbin Director	SoldNo plan 6 parts	130,082	$109.69 average	$14.3M	29%	Form 4
Aug 15, 2025	Cynthia Downes Director	SoldNo plan	2,763	$109.43	$302k	24%	Form 4
Aug 14, 2025	Wanda Kay Reder Director	SoldNo plan	850	$119.46	$102k	7.4%	Form 4
Aug 13, 2025	Creighton K Early EXECUTIVE VP AND CFO	SoldNo plan	7,764	$116.54	$905k	9.7%	Form 4
Aug 12, 2025	Steven A Cohen Director	SoldNo plan	2,500	$116.34	$291k	8.5%	Form 4
May 28, 2025	Creighton K Early EXECUTIVE VP AND CFO	SoldNo plan	5,000	$53.28	$266k	6.5%	Form 4
May 27, 2025	Thomas Donald Brisbin Director	SoldNo plan	22,459	$52.34	$1.18M	5.0%	Form 4
May 23, 2025	Thomas Donald Brisbin Director	SoldNo plan	1,626	$51.54	$84k	0.4%	Form 4
May 22, 2025	Thomas Donald Brisbin Director	SoldNo plan	5,915	$52.04	$308k	1.4%	Form 4
May 19, 2025	Micah Chen EXECUTIVE VP & GENERAL COUNSEL	SoldNo plan	10,000	$50.50	$505k	21%	Form 4
May 16, 2025	Micah Chen EXECUTIVE VP & GENERAL COUNSEL	SoldNo plan	10,000	$48.20	$482k	21%	Form 4
May 16, 2025	Thomas Donald Brisbin Director	SoldNo plan	20,000	$48.54	$971k	4.5%	Form 4
May 16, 2025	Michael A Bieber PRESIDENT AND CEO	SoldNo plan	25,000	$48.11	$1.2M	11%	Form 4
Mar 12, 2025	Mohammad Shahidehpour Director	SoldNo plan	2,273	$39.20	$89k	15%	Form 4
Dec 6, 2024 – Dec 9, 2024	Creighton K Early EXECUTIVE VP AND CFO	SoldNo plan 2 parts	4,583	$43.15 average	$198k	6.2%	Form 4
Nov 21, 2024 – Nov 25, 2024	Thomas Donald Brisbin Director	SoldNo plan 3 parts	23,100	$42.49 average	$982k	5.4%	Form 4
Nov 11, 2024	Michael A Bieber PRESIDENT AND CEO	SoldNo plan	10,868	$45.67	$496k	5.9%	Form 4
Nov 6, 2024	Michael A Bieber PRESIDENT AND CEO	SoldNo plan	1,804	$45.86	$83k	1.0%	Form 4

Sep 15No plan
Thomas Donald Brisbin
Director · sold 4,905 at avg $79.36
$389k
4.8% of stake
Sep 8No plan
Thomas Donald Brisbin
Director · sold 3,439 at $88.19
$303k
3.4% of stake
Sep 3No plan
Thomas Donald Brisbin
Director · sold 58,757 at $88.14
$5.18M
38% of stake
May 14No plan
Michael A Bieber
PRESIDENT AND CEO · sold 56,676 at avg $91.58
$5.19M
19% of stake
May 13No plan
Michael A Bieber
PRESIDENT AND CEO · sold 9,991 at $92.65
$926k
3.8% of stake
Mar 6No plan
Steven A Cohen
Director · sold 6,000 at $81.82
$491k
22% of stake
Sep 18, 2025No plan
Micah Chen
EXECUTIVE VP & GENERAL COUNSEL · sold 10,000 at $106.00
$1.06M
20% of stake
Sep 18, 2025No plan
Dennis V McGinn
Director · sold 7,298 at $106.32
$776k
39% of stake
Aug 25, 2025No plan
Thomas Donald Brisbin
Director · sold 5,182 at $118.15
$612k
6.8% of stake
Aug 22, 2025No plan
Thomas Donald Brisbin
Director · sold 117,595 at avg $108.72
$12.8M
62% of stake
Aug 21, 2025No plan
Thomas Donald Brisbin
Director · sold 125,000 at avg $104.42
$13.1M
40% of stake
Aug 20, 2025No plan
Thomas Donald Brisbin
Director · sold 7,405 at $104.19
$772k
2.3% of stake
Aug 18, 2025No plan
Thomas Donald Brisbin
Director · sold 130,082 at avg $109.69
$14.3M
29% of stake
Aug 15, 2025No plan
Cynthia Downes
Director · sold 2,763 at $109.43
$302k
24% of stake
Aug 14, 2025No plan
Wanda Kay Reder
Director · sold 850 at $119.46
$102k
7.4% of stake
Aug 13, 2025No plan
Creighton K Early
EXECUTIVE VP AND CFO · sold 7,764 at $116.54
$905k
9.7% of stake
Aug 12, 2025No plan
Steven A Cohen
Director · sold 2,500 at $116.34
$291k
8.5% of stake
May 28, 2025No plan
Creighton K Early
EXECUTIVE VP AND CFO · sold 5,000 at $53.28
$266k
6.5% of stake
May 27, 2025No plan
Thomas Donald Brisbin
Director · sold 22,459 at $52.34
$1.18M
5.0% of stake
May 23, 2025No plan
Thomas Donald Brisbin
Director · sold 1,626 at $51.54
$84k
0.4% of stake
May 22, 2025No plan
Thomas Donald Brisbin
Director · sold 5,915 at $52.04
$308k
1.4% of stake
May 19, 2025No plan
Micah Chen
EXECUTIVE VP & GENERAL COUNSEL · sold 10,000 at $50.50
$505k
21% of stake
May 16, 2025No plan
Micah Chen
EXECUTIVE VP & GENERAL COUNSEL · sold 10,000 at $48.20
$482k
21% of stake
May 16, 2025No plan
Thomas Donald Brisbin
Director · sold 20,000 at $48.54
$971k
4.5% of stake
May 16, 2025No plan
Michael A Bieber
PRESIDENT AND CEO · sold 25,000 at $48.11
$1.2M
11% of stake
Mar 12, 2025No plan
Mohammad Shahidehpour
Director · sold 2,273 at $39.20
$89k
15% of stake
Dec 6, 2024 – Dec 9, 2024No plan
Creighton K Early
EXECUTIVE VP AND CFO · sold 4,583 at avg $43.15
$198k
6.2% of stake
Nov 21, 2024 – Nov 25, 2024No plan
Thomas Donald Brisbin
Director · sold 23,100 at avg $42.49
$982k
5.4% of stake
Nov 11, 2024No plan
Michael A Bieber
PRESIDENT AND CEO · sold 10,868 at $45.67
$496k
5.9% of stake
Nov 6, 2024No plan
Michael A Bieber
PRESIDENT AND CEO · sold 1,804 at $45.86
$83k
1.0% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch WLDN, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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