Summary
Updated Aug 30, 2026
Eileen Wynne files SEC Form 4 reports at MONOLITHIC POWER SYSTEMS, INC. (MPWR). 2 SEC Form 4 filings on record, most recently on 8 May 2026. Most recent open-market trade: sold $530K of MPWR on 8 May 2026. Lifetime open-market sales: $530K.
Recent Transactions
2Every recent SEC Form 4 transaction Eileen Wynne has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Eileen Wynne 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.
- Michael Hsing - $278.71M of MPWR open-market activity in the last 12 months
- Saria Tseng - $145.64M of MPWR open-market activity in the last 12 months
- Deming Xiao - $76.43M of MPWR open-market activity in the last 12 months
- Maurice Sciammas - $76.13M of MPWR open-market activity in the last 12 months
- Theodore Blegen - $39.81M of MPWR open-market activity in the last 12 months
- Eugen J. Elmiger - $19.02M of MPWR 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 Eileen Wynne?
Eileen Wynne is a corporate insider of MONOLITHIC POWER SYSTEMS, INC. (MPWR). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Eileen Wynne last file a Form 4?
The most recent primary Form 4 on record is dated 8 May 2026, one of 2 filings going back to 2026.
Has Eileen Wynne been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($530K) across all tracked filings.
Where can I see all of Eileen Wynne'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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