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sellModerate cluster of 4

Michael A Bieber sold $1.2M of WLDN

PRESIDENT AND CEO at Willdan Group, Inc.. 25,000 shares at an average of $48.11, traded May 16, 2025, filed May 20, 2025.

Warning score
55
Value
$1.2M
25,000 shares
Holdings after
200,981
-11% from before
From 52-week low
+57%
low $30.88, close $48.63
From 52-week high
0%
high $48.63, as of May 16, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.2M at market
    +25
  • Share of holdings sold
    Sold 11% of holdings
    +5
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +16.7%, 3m +108.1%, 6m +87.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

WLDNOct 9, 2026 · close 75.12
Since filing May 20, 2025: +48.6%SPY +33.4% · excess +15.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001415889-25-013835, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 16, 2025MOption exercise
Common Stock
+25,000$13.91$348k225,981May 20, 2025
May 16, 2025SOpen-market sale
Common Stock
-25,000$48.11$1.2M200,981May 20, 2025
May 16, 2025MOption exercise
Stock Options (Right to Buy)derivative
-25,000$0.00$00May 20, 2025

Related signals

Other insiders at Willdan Group, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
16Weak
WLDNsell
Willdan Group, Inc.
Thomas Donald Brisbin
director
$389k
4,905 shares
-5%
14Weak
WLDNsell
Willdan Group, Inc.
Thomas Donald Brisbin
director
$303k
3,439 shares
-3%
35Weak
WLDNsell
Willdan Group, Inc.
Thomas Donald Brisbin
director
$5.2M
58,757 shares
-38%
40Moderate
WLDNsell
Willdan Group, Inc.
Michael A Bieber
PRESIDENT AND CEO
$5.2M
56,676 shares
-19%
34Weak
WLDNsell
Willdan Group, Inc.
Michael A Bieber
PRESIDENT AND CEO
$926k
9,991 shares
-4%
38Weak
WLDNsell
Willdan Group, Inc.
Steven A Cohen
director
$491k
6,000 shares
-22%
38Weak
WLDNsell 2
Willdan Group, Inc.
Micah Chen
EXECUTIVE VP & GENERAL COUNSEL
$1.1M
10,000 shares
-20%
55Moderate
WLDNsell 2
Willdan Group, Inc.
Dennis McGinn V
director
$776k
7,298 shares
-39%
75Notable
WLDNsell 5
Willdan Group, Inc.
Thomas Donald Brisbin
director
$13M
117,595 shares
-62%
35Weak
WLDNsell 5
Willdan Group, Inc.
Thomas Donald Brisbin
director
$612k
5,182 shares
-7%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.