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Gary Birkenbeuel

CIK 1748476 · last filed 2026-01-14

Gary Birkenbeuel is a corporate insider who has filed 18 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing, for TTEK, was dated Jan 14, 2026. Across all open-market trades the lifetime net is −$86.1K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.6M 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

$1.65M

Companies

1

Total Filings

18

Lifetime Open-Market Net

-$86.1K

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
TTEK Director 46,635 $35.38 $1.65M -$86.1K 17 2026-01-14

Recent Filings

18 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-01-14 TTEK Mixed +13,307 $0 EDGAR
2025-12-02 TTEK Grant (A) — $0 EDGAR
2025-08-15 TTEK Sell (S) −2,390 -$86.1K EDGAR
2025-08-14 TTEK Notice (144) −2,390 -$86.1K EDGAR
2024-11-22 TTEK Grant (A) — $0 EDGAR
2024-08-22 TTEK Exer (M) +486 $29.1K EDGAR
2023-11-22 TTEK Grant (A) — $0 EDGAR
2022-11-22 TTEK Grant (A) +1,710 $0 EDGAR
2022-11-18 TTEK Grant (A) — $0 EDGAR
2021-11-24 TTEK Grant (A) +2,310 $0 EDGAR
Showing 1–10 of 18
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Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.