Summary
Updated Aug 31, 2026
Aidan Ryan is Interim CFO of Energy Recovery, Inc. (ERII). 1 SEC Form 4 filing on record, dated 25 June 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Aidan Ryan has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Aidan Ryan 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 Aidan Ryan 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
- Alexander J. Buehler - $130K of ERII open-market activity in the last 12 months
- Colin R. Sabol - $99K 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 Aidan Ryan?
Aidan Ryan is a corporate insider, tracked as Interim CFO 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 Aidan Ryan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Aidan Ryan'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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