Most Active Insiders Right Now
Cunjun Ma has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Mark A. Stevens - $407.10M of NVDA open-market activity in the last 90 days
- Xuning Wang - $401.19M of SN open-market activity in the last 90 days
- Fairmount Funds Management LLC - $399.66M of SYRE open-market activity in the last 90 days
- Andreas Bechtolsheim - $393.27M of ANET open-market activity in the last 90 days
- WINDACRE PARTNERSHIP LLC - $391.22M of PRM open-market activity in the last 90 days
- Michael N. Intrator - $388.40M of CRWV open-market activity in the last 90 days
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Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Cunjun Ma?
Cunjun Ma is a corporate insider, tracked as Chief Executive Officer of Huize Holding Ltd (HUIZ). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Cunjun Ma last file a Form 4?
The most recent primary Form 4 on record is dated 20 April 2026, one of 6 filings going back to 2026.
Has Cunjun Ma been buying or selling stock?
Recorded transactions: 11 open-market purchases ($157K) and 0 open-market sales across all tracked filings.
How accurate is Cunjun Ma's historical track record?
Across 11 tracked purchases, Cunjun Ma averaged +10.6% avg 30-day return with a 91% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
Where can I see all of Cunjun Ma'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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