Who
Gary Birkenbeuel
Director
Company insider
Files Form 4 as: Director, Tetra Tech.
In numbers
- Trades disclosed
- 39
- Buys
- 0
- Sells
- 1
- Bought
- $0
- Sold
- $86K
- Companies
- 1
- Companies where not an officer
- 1
- First trade
- 30 Jul 2018
- Last trade
- 12 Jan 2026
- Last filed
- 14 Jan 2026
Companies traded
Activity over time
1 Aug 2025 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | —1,590 at $0.00 | filing |
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code M | —1,590 at $0.00 | filing |
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code A | —4,397 at $0.00 | filing |
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code M | —1,590 at $0.00 | filing |
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | —1,590 at $0.00 | filing |
| 12 Jan 2026filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code A | —4,397 at $0.00 | filing |
| 19 Nov 2025filed 2 Dec 2025 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code A | —1,964 at $0.00 | filing |
| 14 Aug 2025filed 15 Aug 2025 | TTEK Tetra TechProfessional Services | SEC FORM 4 Sold | $86K2,390 at $36.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code A | —5,270 at $0.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | —2,050 at $0.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code M | —2,050 at $0.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code M | —2,050 at $0.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code A | —5,270 at $0.00 | filing |
| 1 Jan 2025filed 14 Jan 2026 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | —2,050 at $0.00 | filing |
| 20 Nov 2024filed 22 Nov 2024 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code A | —1,718 at $0.00 | filing |
| 20 Aug 2024filed 22 Aug 2024 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code M | —243 at $0.00 | filing |
| 20 Aug 2024filed 22 Aug 2024 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | $15K243 at $59.90 | filing |
| 20 Aug 2024filed 22 Aug 2024 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code M | $15K243 at $59.90 | filing |
| 21 Nov 2023filed 22 Nov 2023 | TTEK Tetra Techoption or derivative · Professional Services | SEC FORM 4 Code A | —425 at $0.00 | filing |
| 18 Nov 2022filed 22 Nov 2022 | TTEK Tetra TechProfessional Services | SEC FORM 4 Code A | —1,710 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.