Summary
Updated Aug 30, 2026
William S. Singer is Director of TAO Synergies Inc. (TAOX). 4 SEC Form 4 filings on record going back to 2025, most recently on 19 May 2026.
Recent Transactions
4Every recent SEC Form 4 transaction William S. Singer has reported, most recent first.
Other Insiders Active in the Same Sector
No other insider has filed at William S. Singer's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Thomas P. Gallagher - $30.31M of MIAX open-market activity in the last 12 months
- Andrew H. Tisch - $29.28M of L open-market activity in the last 12 months
- William J. Dunaway - $28.95M of SNEX open-market activity in the last 12 months
- Jason Wilk - $28.37M of DAVE open-market activity in the last 12 months
- Steven M. Quirk - $28.01M of HOOD open-market activity in the last 12 months
- Michael Miebach - $27.92M of MA 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 S. Singer?
William S. Singer is a corporate insider, tracked as Director of TAO Synergies Inc. (TAOX). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did William S. Singer last file a Form 4?
The most recent primary Form 4 on record is dated 19 May 2026, one of 4 filings going back to 2025.
Where can I see all of William S. Singer'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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