Insiders who reported open-market trades in the last 12 months at the companies H. Clifford Buster III 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.
Simon Dyer - $2.99M in SGI purchases and sales in the last 12 months
Scott L. Thompson - $1.89M in SGI purchases and sales in the last 12 months
Steven H. Rusing - $446K in SGI purchases and sales in the last 12 months
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H. Clifford Buster III is a corporate insider, tracked as CEO of Tempur Sealy of SOMNIGROUP INTERNATIONAL INC. (SGI). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did H. Clifford Buster III last file a Form 4?
The most recent primary Form 4 on record is dated 2 March 2026, one of 3 filings going back to 2025.
Has H. Clifford Buster III been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($7.15M) across all tracked filings.
H. Clifford Buster III is CEO of Tempur Sealy of SOMNIGROUP INTERNATIONAL INC. (SGI). 3 SEC Form 4 filings on record going back to 2025, most recently on 2 March 2026. Most recent open-market trade: sold $5.69M of SGI on 19 August 2025. Lifetime open-market sales: $7.15M.
Recent transactions
4
The latest 4 SEC Form 4 transactions reported by H. Clifford Buster III.
InsiderAlpha's records for H. Clifford Buster III go back to 2025: 3 primary Form 4 filings, an average of 1.5 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.
