Dennis E. Marshall

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
Santa Ana, CA
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ John R. Browning, attorney-in-fact
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Dennis E. Marshall

Form 4 holding Director

BIOLARGO, INC.

Security class
Option to Purchase Common Stock
Shares / value
5,432,829
Estimated value
Report date
31 Mar 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Dennis E. Marshall

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