Summary
Updated Aug 31, 2026
Kin Wah Stephen Yiu is Director of Amer Sports, Inc. (AS). 2 SEC Form 4 filings on record, most recently on 18 May 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Kin Wah Stephen Yiu 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 Kin Wah Stephen Yiu 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.
- Jie (James) Zheng - $17.21M of AS open-market activity in the last 12 months
- Stuart Haselden - $8.29M of AS open-market activity in the last 12 months
- Andrew E. Page - $4.15M of AS open-market activity in the last 12 months
- Wen-Chang (Victor) Chen - $466K of AS open-market activity in the last 12 months
- Jutta C. Karlsson - $39K of AS 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 Kin Wah Stephen Yiu?
Kin Wah Stephen Yiu is a corporate insider, tracked as Director of Amer Sports, Inc. (AS). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Kin Wah Stephen Yiu last file a Form 4?
The most recent primary Form 4 on record is dated 18 May 2026, one of 2 filings going back to 2026.
Where can I see all of Kin Wah Stephen Yiu'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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