Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| No transactions found | ||||||||||
Dennis E. Marshall currently holds 5,463,738 shares of BIOLARGO, INC. (BLGO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Dennis E. Marshall has been a net neutral trader of BLGO stock. They have purchased $0 and sold $0 worth of shares.
Dennis E. Marshall's most recent insider trade was on Jun 22, 2026, when they sold 40,909 shares at $0.00 per share.
Dennis E. Marshall serves as Executive at BIOLARGO, INC. (BLGO). They have executed 16 insider transactions totaling $0 over their tenure at the company.
Dennis E. Marshall holds the position of Executive at BIOLARGO, INC., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 19 years and currently hold a stake valued at $0.
Dennis E. Marshall has shown a balanced trading pattern, with $0 in total purchases and $0 in total sales across all transactions. Their most recent activity indicates a balanced approach to trading.
The largest transaction by Dennis E. Marshall was on Jan 4, 2010, when they purchased $50.0K worth of BLGO shares. This transaction involved 71,429 shares at $0.70 per share.
Dennis E. Marshall currently owns 5,463,738 shares of BIOLARGO, INC. (BLGO), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Dennis E. Marshall's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Dennis E. Marshall has 16 Form 4 filings on record as an insider at BIOLARGO, INC..
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