Summary
Updated Aug 31, 2026
William K. Daniel files SEC Form 4 reports at HENRY SCHEIN INC (HSIC). 5 SEC Form 4 filings on record going back to 2025, most recently on 15 June 2026. Most recent open-market trade: bought $692K of HSIC on 12 May 2026. Lifetime open-market purchases: $1.36M.
Recent Transactions
5Every recent SEC Form 4 transaction William K. Daniel has reported, most recent first.
Trading Pattern
InsiderAlpha's records for William K. Daniel go back to 2025: 5 primary Form 4 filings, an average of 2.5 per year. The typical open-market purchase is $681K (2 buys totaling $1.36M). The largest single buy on record is $692K of HSIC in 2026. 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 Stocks
Insiders who reported open-market trades in the last 12 months at the companies William K. Daniel 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.
- Stanley M. Bergman - $7.54M of HSIC open-market activity in the last 12 months
- Mark E. Mlotek - $479K of HSIC open-market activity in the last 12 months
- Philip A. Laskawy - $229K of HSIC open-market activity in the last 12 months
- Kurt P. Kuehn - $225K of HSIC open-market activity in the last 12 months
- Thomas C. Popeck - $99K of HSIC 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 K. Daniel?
William K. Daniel is a corporate insider of HENRY SCHEIN INC (HSIC). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William K. Daniel submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has William K. Daniel been buying or selling stock?
Recorded transactions: 2 open-market purchases ($1.36M) and 0 open-market sales across all tracked filings.
Where can I see all of William K. Daniel'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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