Summary
Updated Aug 30, 2026
Joseph C. Tsai is Director of Alibaba Group Holding Ltd (BABA). 5 SEC Form 4 filings on record, most recently on 25 August 2026. Most recent open-market trade: bought $10.42M of BABA on 25 August 2026. Lifetime open-market purchases: $20.71M.
Recent Transactions
5Every recent SEC Form 4 transaction Joseph C. Tsai 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 Joseph C. Tsai 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.
- J. Michael Evans - $68.36M of BABA open-market activity in the last 12 months
- Yongming Wu - $4.98M of BABA open-market activity in the last 12 months
- Hong Xu - $3.00M of BABA open-market activity in the last 12 months
- Siying Yu - $427K of BABA open-market activity in the last 12 months
- Fang Jiang - $330K of BABA open-market activity in the last 12 months
- Fan (Fj) Jiang - $164K of BABA 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 Joseph C. Tsai?
Joseph C. Tsai is a corporate insider, tracked as Director of Alibaba Group Holding Ltd (BABA). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Joseph C. Tsai submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has Joseph C. Tsai been buying or selling stock?
Recorded transactions: 2 open-market purchases ($20.71M) and 0 open-market sales across all tracked filings.
Where can I see all of Joseph C. Tsai'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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