Michael A. Bieber
PRESIDENT AND CEO · Willdan Group, Inc.
- 2024
- May 15, 2026
- 13
Summary
Latest filing:
Michael A. Bieber is PRESIDENT AND CEO of Willdan Group, Inc. (WLDN). 13 SEC Form 4 filings on record going back to 2024, most recently on 15 May 2026. Most recent open-market trade: sold $26K of WLDN on 15 May 2026. Lifetime open-market sales: $7.90M.
Recent transactions
20The latest 20 SEC Form 4 transactions reported by Michael A. Bieber.
Trading pattern
InsiderAlpha's records for Michael A. Bieber go back to 2024: 13 primary Form 4 filings, an average of 4.3 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Michael A. Bieber files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Thomas Donald Brisbin - $5.87M in WLDN purchases and sales in the last 12 months
- Steven A. Cohen - $491K in WLDN purchases and sales in the last 12 months
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Frequently asked questions
Who is Michael A. Bieber?
Michael A. Bieber is a corporate insider, tracked as PRESIDENT AND CEO of Willdan Group, Inc. (WLDN). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Michael A. Bieber last file a Form 4?
The most recent primary Form 4 on record is dated 15 May 2026, one of 13 filings going back to 2024.
Has Michael A. Bieber been buying or selling stock?
Recorded transactions: 0 open-market purchases and 8 open-market sales ($7.90M) across all tracked filings.