Alexander J. Buehler

Sits on 2 boards. Last updated September 28, 2026

Time on boards

Boards served
2
Current seats
2
Board service
7 years
Director since
2023

7 years of board service in total across 2 boards, counting each seat separately. Longest: LiqTech International Inc., 3 years.

3 years ยท Since 2023
Energy Recovery Inc. Director ยท Interim President and CEO
3 years ยท Since 2023

Chief executive roles

Energy Recovery Inc. ยท Interim President and CEO Interim
Dates unknown

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 15, 2026 Energy Recovery Inc. Option exercise +15,327 $8.60 $131,812
Jun 15, 2026 Energy Recovery Inc. Open-market sale โˆ’14,900 $8.71 $129,779
Jun 5, 2025 Energy Recovery Inc. Grant or award +12,038 โ€” โ€”
Jan 7, 2025 LiqTech International Inc. Grant or award +53,030 โ€” โ€”
Aug 19, 2024 Energy Recovery Inc. Option exercise +19,841 $2.92 $57,936
Jun 6, 2024 Energy Recovery Inc. Grant or award +11,127 โ€” โ€”
Jan 3, 2024 LiqTech International Inc. Grant or award +20,940 โ€” โ€”
Jun 8, 2023 Energy Recovery Inc. Grant or award +3,703 $27.00 $99,981
Jan 3, 2023 LiqTech International Inc. Grant or award +98,000 โ€” โ€”
Jan 1, 2023 LiqTech International Inc. Grant or award +924,089 โ€” โ€”
Jan 1, 2023 LiqTech International Inc. Grant or award +97,456 โ€” โ€”

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