Summary
Updated Aug 30, 2026
Michael S. Mancini is Chief Financial Officer of Energy Recovery, Inc. (ERII). 2 SEC Form 4 filings on record, most recently on 19 February 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Michael S. Mancini has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael S. Mancini go back to 2026: 2 primary Form 4 filings, an average of 2.0 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 Michael S. Mancini 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 Michael S. Mancini?
Michael S. Mancini is a corporate insider, tracked as Chief Financial Officer of Energy Recovery, Inc. (ERII). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Michael S. Mancini last file a Form 4?
The most recent primary Form 4 on record is dated 19 February 2026, one of 2 filings going back to 2026.
Where can I see all of Michael S. Mancini'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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