InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (11 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
11
T+90 hit rate
17%
T+90 mean return
-3.7%
Across 6 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the full record of transactions filed by BIEBER MICHAEL A, Chief Executive Officer. Insider active across 2 companies, notably Willdan Group, Inc.. In total, 44 filings have been recorded. Split: 0 buy · 11 sells. Total volume traded: €5.7m. Activity tracked since 9 June 2021. The latest transaction was filed on 14 May 2026 (Cession). Regulator: SEC (Form 4). All data is openly available.
Declarations44 total
16,667 shares@ US$28.190.029% mcap6.3% of flowCommon StockSEC:0001270606-26-000017:1
25,429 shares@ US$90.880.14% mcap31.2% of flowCommon StockSEC:0001270606-26-000017:2
23,015 shares@ US$91.950.13% mcap28.5% of flowCommon StockSEC:0001270606-26-000017:3
7,956 shares@ US$92.650.045% mcap9.9% of flowCommon StockSEC:0001270606-26-000017:4
276 shares@ US$93.740.0016% mcap0.3% of flowCommon StockSEC:0001270606-26-000017:5
40,009 shares@ US$16.270.040% mcap48.9% of flowCommon StockSEC:0001270606-26-000017:0
40,009 shares@ US$16.270.037% mcap68.7% of flowCommon StockSEC:0001270606-26-000017
9,991 shares@ US$16.270.0100% mcap12.2% of flowCommon StockSEC:0001270606-26-000015
9,991 shares@ US$16.270.0100% mcap12.2% of flowCommon StockSEC:0001270606-26-000015:0
25,000 shares@ US$13.913.6% of flowCommon StockSEC:0001415889-25-013835:0
25,000 shares@ US$48.1112.4% of flowCommon StockSEC:0001415889-25-013835:1
15,750 shares0Common StockSEC:0001415889-25-009059:0
3,054 shares@ US$43.061.4% of flowCommon StockSEC:0001415889-25-008858:0
19,250 shares0Common StockSEC:0001415889-25-008624:0
11,970 shares0Common StockSEC:0001415889-25-007903:0
2,429 shares@ US$41.801.1% of flowCommon StockSEC:0001415889-25-007691:0
10,868 shares@ US$13.491.6% of flowCommon StockSEC:0001415889-24-026632:0
1,804 shares@ US$13.490.3% of flowCommon StockSEC:0001415889-24-026467:0
8,246 shares0Common StockSEC:0001415889-24-021847:0
750 shares@ US$13.490.1% of flowCommon StockSEC:0001415889-24-021319:0
10,273 shares@ US$13.491.5% of flowCommon StockSEC:0001415889-24-021105:0
12,000 shares@ US$13.491.7% of flowCommon StockSEC:0001415889-24-020997:0
6,000 shares@ US$13.490.9% of flowCommon StockSEC:0001415889-24-016978:0
6,000 shares@ US$13.490.9% of flowCommon StockSEC:0001415889-24-016725:0
4,514 shares@ US$13.490.7% of flowCommon StockSEC:0001415889-24-016535:0
25 of 44 declarations
About BIEBER MICHAEL A
Michael A. Bieber is the President and CEO of Willdan Group, Inc. He oversees the company's operations and leads the board of directors, focusing on sustainable growth strategy. His expertise in the utilities sector is crucial for guiding Willdan's initiatives.
