Summary
Updated Aug 31, 2026
Carintia Martinez files SEC Form 4 reports at MONOLITHIC POWER SYSTEMS, INC. (MPWR). 2 SEC Form 4 filings on record going back to 2025, most recently on 6 February 2026. Most recent open-market trade: sold $1.26M of MPWR on 18 September 2025. Lifetime open-market sales: $1.26M.
Recent Transactions
2Every recent SEC Form 4 transaction Carintia Martinez has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Carintia Martinez go back to 2025: 2 primary Form 4 filings, 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 Carintia Martinez 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 Carintia Martinez?
Carintia Martinez is a corporate insider of MONOLITHIC POWER SYSTEMS, INC. (MPWR). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Carintia Martinez last file a Form 4?
The most recent primary Form 4 on record is dated 6 February 2026, one of 2 filings going back to 2025.
Has Carintia Martinez been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($1.26M) across all tracked filings.
Where can I see all of Carintia Martinez'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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