Summary
Updated Aug 30, 2026
Alexander J. Buehler is Interim President and CEO, Director of Energy Recovery, Inc. (ERII). 1 SEC Form 4 filing on record, dated 17 June 2026. Most recent open-market trade: sold $130K of ERII on 17 June 2026. Lifetime open-market sales: $130K.
Recent Transactions
2Every recent SEC Form 4 transaction Alexander J. Buehler has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Alexander J. Buehler go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Alexander J. Buehler files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Arve Hanstveit - $2.51M of ERII open-market activity in the last 12 months
- William Yeung - $1.28M of ERII open-market activity in the last 12 months
- Rodney Clemente - $275K of ERII open-market activity in the last 12 months
- Pamela L. Tondreau - $167K of ERII open-market activity in the last 12 months
- Colin R. Sabol - $99K of ERII open-market activity in the last 12 months
- Natarajan Ramanan - $3K of ERII open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Alexander J. Buehler?
Alexander J. Buehler is a corporate insider, tracked as Interim President and CEO, Director of Energy Recovery, Inc. (ERII). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Alexander J. Buehler submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Alexander J. Buehler been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($130K) across all tracked filings.
Where can I see all of Alexander J. Buehler's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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