Summary
Updated Aug 31, 2026
William Ho is CHIEF MEDICAL OFFICER of RAPT Therapeutics, Inc. (RAPT). 1 SEC Form 4 filing on record, dated 15 November 2024.
Trading Pattern
InsiderAlpha's records for William Ho go back to 2024: 1 primary Form 4 filing, an average of 0.3 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 Sector
No other insider has filed at William Ho's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Brian Guan-Chyun Liu - $74.81M of CGON open-market activity in the last 12 months
- Keith A. Meister - $74.03M of WGS open-market activity in the last 12 months
- Warren B. Kanders - $73.88M of CDRE open-market activity in the last 12 months
- Amirali Talasaz - $73.75M of GH open-market activity in the last 12 months
- James E. Flynn - $70.87M of NUVL open-market activity in the last 12 months
- Joaquin Duato - $66.84M of JNJ 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 William Ho?
William Ho is a corporate insider, tracked as CHIEF MEDICAL OFFICER of RAPT Therapeutics, Inc. (RAPT). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William Ho last file a Form 4?
The only primary Form 4 on record is dated 15 November 2024.
Where can I see all of William Ho'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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