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John F. Killian currently holds 38,660.86 shares of Houghton Mifflin Harcourt Co (HMHC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John F. Killian has been a net seller of HMHC stock. They have purchased $422.8K and sold $7.0M worth of shares.
John F. Killian's most recent insider trade was on Dec 11, 2025, when they sold 2,276 shares at $96.89 per share.
John F. Killian serves as Executive at Houghton Mifflin Harcourt Co (HMHC). They have executed 144 insider transactions totaling $7.4M over their tenure at the company.
John F. Killian holds the position of Executive at Houghton Mifflin Harcourt Co, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 21 years and currently hold a stake valued at $0.
John F. Killian has shown a selling trading pattern, with $422.8K in total purchases and $7.0M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by John F. Killian was on Sep 16, 2008, when they sold $300.0K worth of VZ shares. This transaction involved 9,135 shares at $32.84 per share.
John F. Killian currently owns 38,660.86 shares of Houghton Mifflin Harcourt Co (HMHC), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of John F. Killian's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. John F. Killian has 144 Form 4 filings on record as an insider at Houghton Mifflin Harcourt Co.
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