Insiders who reported open-market trades in the last 12 months at the companies Thomas A. Hassfurther 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.
Donald R. Shirley - $3.01M in PKG purchases and sales in the last 12 months
Mark W. Kowlzan - $2.01M in PKG purchases and sales in the last 12 months
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Thomas A. Hassfurther is a corporate insider, tracked as President of PACKAGING CORP OF AMERICA (PKG). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Thomas A. Hassfurther submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Thomas A. Hassfurther been buying or selling stock?
Recorded transactions: 0 open-market purchases and 6 open-market sales ($14.76M) across all tracked filings.
Thomas A. Hassfurther is President of PACKAGING CORP OF AMERICA (PKG). 8 SEC Form 4 filings on record going back to 2024, most recently on 11 August 2026. Most recent open-market trade: sold $1.79M of PKG on 11 August 2026. Lifetime open-market sales: $14.76M.
Recent transactions
14
The latest 14 SEC Form 4 transactions reported by Thomas A. Hassfurther.
InsiderAlpha's records for Thomas A. Hassfurther 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.
