MICHAEL A BIEBER

CIK 1270606 · PRESIDENT AND CEO · last filed 2026-05-15

MICHAEL A BIEBER is a PRESIDENT AND CEO who has filed 88 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for WLDN, was dated May 15, 2026. Across all open-market trades the lifetime net is −$18.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $24.4M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$24.36M

Companies

2

Total Filings

88

Lifetime Open-Market Net

-$18.64M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
WLDN PRESIDENT AND CEO 249,801 $96.30 $24.06M -$14.41M 61 2026-05-15
TTEK SENIOR VICE PRESIDENT 10,796 $28.43 $306.9K -$4.24M 27 2015-02-27

Recent Filings

88 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-15 WLDN Mixed -$4.07M EDGAR
2026-05-14 WLDN Mixed -$763.1K EDGAR
2026-03-26 WLDN Mixed +9,306 -$533.6K EDGAR
2026-03-23 WLDN Tax (F) −2,387 -$180.3K EDGAR
2026-03-19 WLDN Tax (F) −2,625 -$205.5K EDGAR
2026-03-17 WLDN Mixed +10,236 -$557.3K EDGAR
2026-03-12 WLDN Mixed +11,113 -$646.4K EDGAR
2026-03-11 WLDN Tax (F) −1,814 -$150.5K EDGAR
2026-03-05 WLDN Grant (A) +18,000 $0 EDGAR
2025-08-20 WLDN Mixed +6,175 -$743.5K EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.