Alexander J. Buehler

Alexander J. Buehler is a declared insider at 2 companies (chief executive); the most frequent names are Energy Recovery, Inc. and Liqtech International Inc. In total, 16 filings cover trades dated from 10 June 2021 to 15 June 2026.

The open-market side counts 1 purchase for €948k alongside 1 sale. The totals do not cover 1 filing with an undisclosed amount. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 11 share grants and 3 option exercises. Since January 2026: no purchases and 1 sale on the market.

Most recently, on 17 June 2026, the filings show an option exercise in Energy Recovery, Inc. The most recent open-market purchase was published on 19 May 2022, 1,613 days ago. Filings reach the SEC (Form 4) feed a median of 4 days after the trade. Section 16 rules allow two business days to file each Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.