Summary
Updated Aug 31, 2026
William S. Shanahan is Director of Cyclo Therapeutics, Inc. (CYTH). 1 SEC Form 4 filing on record, dated 18 November 2024.
Recent Transactions
1Every recent SEC Form 4 transaction William S. Shanahan has reported, most recent first.
Trading Pattern
InsiderAlpha's records for William S. Shanahan 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.
Most Active Insiders Right Now
William S. Shanahan has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Coliseum Capital Management, LLC - $124.20M of UTI open-market activity in the last 90 days
- Andrew Stafman - $123.54M of TWLO open-market activity in the last 90 days
- Vyacheslav Kim - $119.18M of KSPI open-market activity in the last 90 days
- Olivier Pomel - $118.60M of DDOG open-market activity in the last 90 days
- Patrizio Vinciarelli - $118.12M of VICR open-market activity in the last 90 days
- Ronda E. Stryker - $117.78M of SYK open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William S. Shanahan?
William S. Shanahan is a corporate insider, tracked as Director of Cyclo Therapeutics, Inc. (CYTH). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William S. Shanahan last file a Form 4?
The only primary Form 4 on record is dated 18 November 2024.
Where can I see all of William S. Shanahan'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.
Learn More
Follow William S. Shanahan and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial