Insiders who reported open-market trades in the last 12 months at the companies William C. Stone 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.
Normand A. Boulanger - $12.88M in SSNC purchases and sales in the last 12 months
Michael Jay Zamkow - $400K in SSNC purchases and sales in the last 12 months
Jonathan E. Michael - $183K in SSNC purchases and sales in the last 12 months
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William C. Stone is a corporate insider, tracked as Chairman of the Board & CEO of SS&C Technologies Holdings Inc (SSNC). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William C. Stone last file a Form 4?
The most recent primary Form 4 on record is dated 3 March 2026, one of 8 filings going back to 2024.
Has William C. Stone been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($29.14M) across all tracked filings.
William C. Stone is Chairman of the Board & CEO of SS&C Technologies Holdings Inc (SSNC). 8 SEC Form 4 filings on record going back to 2024, most recently on 3 March 2026. Most recent open-market trade: sold $10.20M of SSNC on 11 December 2024. Lifetime open-market sales: $29.14M.
Recent transactions
11
The latest 11 SEC Form 4 transactions reported by William C. Stone.
InsiderAlpha's records for William C. Stone go back to 2024: 8 primary Form 4 filings, an average of 2.7 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
