
Michael A. Bieber
PRESIDENT AND CEO · Willdan Group, Inc.
- 2024
- May 15, 2026
- 13
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.