Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
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David S. Tierney currently holds 383,314 shares of KEMPHARM, INC (KMPH), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David S. Tierney has been a net seller of KMPH stock. They have purchased $220.6K and sold $3.0M worth of shares.
David S. Tierney's most recent insider trade was on Dec 29, 2025, when they sold 1,334 shares at $0.00 per share.
David S. Tierney serves as Executive at KEMPHARM, INC (KMPH). They have executed 76 insider transactions totaling $3.2M over their tenure at the company.
David S. Tierney holds the position of Executive at KEMPHARM, INC, 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.
David S. Tierney has shown a selling trading pattern, with $220.6K in total purchases and $3.0M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by David S. Tierney was on Dec 12, 2023, when they sold $666.5K worth of CPRX shares. This transaction involved 50,000 shares at $13.33 per share.
David S. Tierney currently owns 383,314 shares of KEMPHARM, INC (KMPH), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of David S. Tierney's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. David S. Tierney has 76 Form 4 filings on record as an insider at KEMPHARM, INC.
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