Insider · CIK 0001270606

Bieber Michael A

CIK 0001270606 Name as filed on the most recent filing

Filed as Bieber Michael A (33)

83 transaction lines · from 33 filings · filed 2006-05-17 to 2026-05-15 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

83 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2026-05-14 S, Open-market sale Willdan Group, Inc.WLDN 4 lines 5,190,212, disposed Open Form 4 filing 0001270606-26-000017
2026-05-13 S, Open-market sale Willdan Group, Inc.WLDN 925,666, disposed Open Form 4 filing 0001270606-26-000015
2025-05-16 S, Open-market sale Willdan Group, Inc.WLDN 1,202,750, disposed Open Form 4 filing 0001415889-25-013835
2024-11-11 S, Open-market sale Willdan Group, Inc.WLDN 496,342, disposed Open Form 4 filing 0001415889-24-026632
2024-11-06 S, Open-market sale Willdan Group, Inc.WLDN 82,731, disposed Open Form 4 filing 0001415889-24-026467
2024-08-12 S, Open-market sale Willdan Group, Inc.WLDN 27,345, disposed Open Form 4 filing 0001415889-24-021319
2024-08-09 S, Open-market sale Willdan Group, Inc.WLDN 334,839, disposed Open Form 4 filing 0001415889-24-021105
2024-08-08 S, Open-market sale Willdan Group, Inc.WLDN 374,245, disposed Open Form 4 filing 0001415889-24-021105
2024-08-07 S, Open-market sale Willdan Group, Inc.WLDN 378,767, disposed Open Form 4 filing 0001415889-24-020997
2024-08-06 S, Open-market sale Willdan Group, Inc.WLDN 438,960, disposed Open Form 4 filing 0001415889-24-020997
2024-06-13 S, Open-market sale Willdan Group, Inc.WLDN 135,227, disposed Open Form 4 filing 0001415889-24-016978
2024-06-12 S, Open-market sale Willdan Group, Inc.WLDN 136,126, disposed Open Form 4 filing 0001415889-24-016725
2024-06-11 S, Open-market sale Willdan Group, Inc.WLDN 135,036, disposed Open Form 4 filing 0001415889-24-016725
2024-06-10 S, Open-market sale Willdan Group, Inc.WLDN 103,423, disposed Open Form 4 filing 0001415889-24-016535
2023-08-24 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 24,995, disposed Open Form 4 filing 0001415889-23-012722
2023-08-23 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 27,509, disposed Open Form 4 filing 0001415889-23-012618
2023-08-22 S, Open-market sale Willdan Group, Inc.WLDN 27,749, disposed Open Form 4 filing 0001415889-23-012618
2023-03-13 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 46,738, disposed Open Form 4 filing 0001415889-23-004911
2023-03-10 S, Open-market sale Willdan Group, Inc.WLDN 3 lines 42,512, disposed Open Form 4 filing 0001415889-23-004815
2023-03-09 S, Open-market sale Willdan Group, Inc.WLDN 49,932, disposed Open Form 4 filing 0001415889-23-004688
2022-08-10 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 754,325, disposed Open Form 4 filing 0001415889-22-008569
2022-08-09 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 12,768, disposed Open Form 4 filing 0001415889-22-008507
2022-03-15 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 712,302, disposed Open Form 4 filing 0001415889-22-003147
2021-09-08 S, Open-market sale Willdan Group, Inc.WLDN 842,300, disposed Open Form 4 filing 0001415889-21-004354
2021-03-24 S, Open-market sale Willdan Group, Inc.WLDN 4 lines 180,890, disposed Open Form 4 filing 0001179110-21-003830
2021-03-23 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 59,002, disposed Open Form 4 filing 0001179110-21-003830
2021-03-22 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 179,904, disposed Open Form 4 filing 0001179110-21-003830
2021-03-16 S, Open-market sale Willdan Group, Inc.WLDN 8,321, disposed Open Form 4 filing 0001179110-21-003743
2021-03-15 S, Open-market sale Willdan Group, Inc.WLDN 2 lines 248,391, disposed Open Form 4 filing 0001179110-21-003743
2021-03-12 S, Open-market sale Willdan Group, Inc.WLDN 72,772, disposed Open Form 4 filing 0001179110-21-003743
2021-03-12 S, Open-market sale Willdan Group, Inc.WLDN 43,135, disposed Open Form 4 filing 0001179110-21-003743
2021-03-12 S, Open-market sale Willdan Group, Inc.WLDN 41,885, disposed Open Form 4 filing 0001179110-21-003743
2021-03-12 S, Open-market sale Willdan Group, Inc.WLDN 24,562, disposed Open Form 4 filing 0001179110-21-003743

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
S, Open-market sale
Open-market sale
Relationships on this page
D, Director
Director
O, Officer
Officer

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 1
  • Open-market sale 82
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. BIEBER MICHAEL A, insider transactions. Retrieved 2026-08-22 from https://ebomi.com/insider/0001270606

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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