Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
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David Sponsel currently holds 504,932 shares of Alphatec Holdings, Inc. (ATEC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David Sponsel has been a net seller of ATEC stock. They have purchased $49.6K and sold $10.5M worth of shares.
David Sponsel's most recent insider trade was on Mar 11, 2026, when they sold 163,452 shares at $12.52 per share.
David Sponsel serves as Executive at Alphatec Holdings, Inc. (ATEC). They have executed 48 insider transactions totaling $10.6M over their tenure at the company.
David Sponsel holds the position of Executive at Alphatec Holdings, Inc., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 7 years and currently hold a stake valued at $0.
David Sponsel has shown a selling trading pattern, with $49.6K in total purchases and $10.5M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by David Sponsel was on Sep 18, 2025, when they sold $2.1M worth of ATEC shares. This transaction involved 137,445 shares at $15.09 per share.
David Sponsel currently owns 504,932 shares of Alphatec Holdings, Inc. (ATEC), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of David Sponsel's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. David Sponsel has 48 Form 4 filings on record as an insider at Alphatec Holdings, Inc..
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