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Insiders · Profile

BIEBER MICHAEL A

PRESIDENT AND CEO at Willdan · SENIOR VICE PRESIDENT at TETRA TECH. Filing since 29 May 2008. CIK 0001270606

WLDN Willdan Group, Inc. PRESIDENT AND CEO · 35 trades TTEK TETRA TECH INC SENIOR VICE PRESIDENT · 8 trades
Company
Date
Role
Action
Shares
Amount
Of holding
WLDN Willdan Group, Inc.
14 May 2026
PRESIDENT AND CEO
Sold at will
56,676
$5.19M
18.5%
WLDN Willdan Group, Inc.
13 May 2026
PRESIDENT AND CEO
Sold at will
9,991
$925.67K
3.8%
WLDN Willdan Group, Inc.
16 May 2025
PRESIDENT AND CEO
Sold at will
25,000
$1.20M
11.1%
WLDN Willdan Group, Inc.
11 Nov 2024
PRESIDENT AND CEO
Sold at will
10,868
$496.34K
5.9%
WLDN Willdan Group, Inc.
6 Nov 2024
PRESIDENT AND CEO
Sold at will
1,804
$82.73K
1.0%
WLDN Willdan Group, Inc.
12 Aug 2024
PRESIDENT AND CEO
Sold at will
750
$27.35K
0.4%
WLDN Willdan Group, Inc.
9 Aug 2024
PRESIDENT AND CEO
Sold at will
9,209
$334.84K
5.1%
WLDN Willdan Group, Inc.
8 Aug 2024
PRESIDENT AND CEO
Sold at will
10,273
$374.25K
5.7%
WLDN Willdan Group, Inc.
7 Aug 2024
PRESIDENT AND CEO
Sold at will
10,346
$378.77K
5.7%
WLDN Willdan Group, Inc.
6 Aug 2024
PRESIDENT AND CEO
Sold at will
12,000
$438.96K
6.6%
WLDN Willdan Group, Inc.
13 Jun 2024
PRESIDENT AND CEO
Sold at will
4,460
$135.23K
2.6%
WLDN Willdan Group, Inc.
12 Jun 2024
PRESIDENT AND CEO
Sold at will
4,394
$136.13K
2.6%
WLDN Willdan Group, Inc.
11 Jun 2024
PRESIDENT AND CEO
Sold at will
4,464
$135.04K
2.6%
WLDN Willdan Group, Inc.
10 Jun 2024
PRESIDENT AND CEO
Sold at will
3,333
$103.42K
2.0%
WLDN Willdan Group, Inc.
24 Aug 2023
PRESIDENT
Sold at will
1,026
$25.00K
0.7%
WLDN Willdan Group, Inc.
23 Aug 2023
PRESIDENT
Sold at will
1,170
$27.51K
0.8%
WLDN Willdan Group, Inc.
22 Aug 2023
PRESIDENT
Sold at will
1,216
$27.75K
0.8%
WLDN Willdan Group, Inc.
13 Mar 2023
PRESIDENT
Sold, plan not stated
2,852
$46.74K
2.1%
WLDN Willdan Group, Inc.
10 Mar 2023
PRESIDENT
Sold, plan not stated
2,722
$42.51K
1.9%
WLDN Willdan Group, Inc.
9 Mar 2023
PRESIDENT
Sold, plan not stated
2,932
$49.93K
2.0%
WLDN Willdan Group, Inc.
10 Aug 2022
PRESIDENT
Sold, plan not stated
27,277
$754.33K
17.3%
WLDN Willdan Group, Inc.
9 Aug 2022
PRESIDENT
Sold, plan not stated
456
$12.77K
0.3%
WLDN Willdan Group, Inc.
15 Mar 2022
PRESIDENT
Sold, plan not stated
25,402
$712.30K
16.8%
WLDN Willdan Group, Inc.
8 Sep 2021
PRESIDENT
Sold, plan not stated
22,236
$842.30K
19.9%
WLDN Willdan Group, Inc.
24 Mar 2021
President
Sold, plan not stated
5,040
$180.89K
6.6%
WLDN Willdan Group, Inc.
23 Mar 2021
President
Sold, plan not stated
1,566
$59.00K
2.0%
WLDN Willdan Group, Inc.
22 Mar 2021
President
Sold, plan not stated
4,478
$179.90K
5.3%
WLDN Willdan Group, Inc.
16 Mar 2021
President
Sold, plan not stated
181
$8.32K
0.3%
WLDN Willdan Group, Inc.
15 Mar 2021
President
Sold, plan not stated
5,350
$248.39K
7.9%
WLDN Willdan Group, Inc.
12 Mar 2021
President
Sold, plan not stated
3,972
$189.58K
5.5%
WLDN Willdan Group, Inc.
11 Mar 2021
President
Sold, plan not stated
3,845
$179.84K
5.1%
WLDN Willdan Group, Inc.
19 Jun 2020
President
Sold, plan not stated
30,934
$726.04K
38.4%
WLDN Willdan Group, Inc.
23 May 2018
President
Sold, plan not stated
4,000
$107.96K
54.5%
WLDN Willdan Group, Inc.
12 Jun 2015
SVP, Corporate Development
Bought
4,000
$55.80K
opened
TTEK TETRA TECH INC
26 Feb 2015
SENIOR VICE PRESIDENT
Sold, plan not stated
22,916
$577.98K
68.0%
TTEK TETRA TECH INC
25 Feb 2015
SENIOR VICE PRESIDENT
Sold, plan not stated
44,897
$1.13M
80.6%
TTEK TETRA TECH INC
25 Aug 2014
SENIOR VICE PRESIDENT
Sold, plan not stated
21,500
$552.26K
52.5%
TTEK TETRA TECH INC
3 Feb 2014
SENIOR VICE PRESIDENT
Sold, plan not stated
25,000
$709.28K
56.2%
TTEK TETRA TECH INC
18 Nov 2013
SENIOR VICE PRESIDENT
Sold, plan not stated
10,000
$288.98K
38.3%
TTEK TETRA TECH INC
9 Aug 2012
SENIOR VICE PRESIDENT
Sold, plan not stated
1,966
$51.65K
13.3%
TTEK TETRA TECH INC
15 Nov 2011
SENIOR VICE PRESIDENT
Sold, plan not stated
11,394
$255.58K
47.0%
WLDN Willdan Group, Inc.
23 Mar 2011
President
Sold, plan not stated
2,116
$80.77K
2.7%
TTEK TETRA TECH INC
29 May 2008
VICE PRESIDENT
Sold, plan not stated
25,000
$668.77K
79.5%
43 decisions on file.