Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
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| No transactions found | ||||||||||
Lewis T. Williams currently holds 3,762 shares of FIVE PRIME THERAPEUTICS INC (FPRX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Lewis T. Williams has been a net seller of FPRX stock. They have purchased $0 and sold $15.0M worth of shares.
Lewis T. Williams's most recent insider trade was on Jan 2, 2026, when they sold 3,762 shares at $0.00 per share.
Lewis T. Williams serves as Executive at FIVE PRIME THERAPEUTICS INC (FPRX). They have executed 78 insider transactions totaling $15.0M over their tenure at the company.
Lewis T. Williams holds the position of Executive at FIVE PRIME THERAPEUTICS INC, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 16 years and currently hold a stake valued at $0.
Lewis T. Williams has shown a selling trading pattern, with $0 in total purchases and $15.0M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Lewis T. Williams was on Apr 21, 2016, when they sold $2.3M worth of FPRX shares. This transaction involved 48,121 shares at $48.05 per share.
Lewis T. Williams currently owns 3,762 shares of FIVE PRIME THERAPEUTICS INC (FPRX), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Lewis T. Williams's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Lewis T. Williams has 78 Form 4 filings on record as an insider at FIVE PRIME THERAPEUTICS INC.
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