LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
BLGOCIK 0000880242

BIOLARGO, INC.

34 transactions by 7 insiders, from November 14, 2025 to September 30, 2026.

Transactions
347 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
Nonenobody sold on the open market
Net
+$0net buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Dennis E. MarshallDir9———
Dennis P. CalvertPres6———
Kenneth Reay CodeChief6———
Jack B. StrommenDir4———
Linda ParkDir4———
Christina Elaine BrayDir4———
Charles K. DarganCFO1———

All transactions

34 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Kenneth Reay CodeChiefSep 30G2,000,000$0.00—
Kenneth Reay CodeChiefSep 30A566,261$0.08$45K
Dennis P. CalvertPresSep 30G2,000,000$0.00—
Dennis P. CalvertPresSep 30A931,886$0.08$75K
Dennis E. MarshallDirDERIVSep 30A234,375——
Dennis E. MarshallDirDERIVSep 30A281,248——
Jack B. StrommenDirDERIVSep 30A187,500——
Christina Elaine BrayDirDERIVSep 30A234,375——
Linda ParkDirDERIVSep 30A234,375——
Kenneth Reay CodeChiefJul 7A532,567$0.11$60K
Dennis P. CalvertPresJul 1A219,914$0.11$25K
Dennis P. CalvertPresJun 30A699,569$0.11$79K
Jack B. StrommenDirDERIVJun 30A132,159——
Linda ParkDirDERIVJun 30A165,198——
Christina Elaine BrayDirDERIVJun 30A165,198——
Dennis E. MarshallDirDERIVJun 30A115,741——
Dennis E. MarshallDirDERIVJun 30A198,238——
Dennis E. MarshallDirDERIVJun 22A40,909——
Kenneth Reay CodeChiefMar 31A69,444$0.16$11K
Jack B. StrommenDirDERIVMar 31A92,593——
Christina Elaine BrayDirDERIVMar 31A115,741——
Linda ParkDirDERIVMar 31A115,741——
Dennis E. MarshallDirDERIVMar 31A115,741——
Dennis E. MarshallDirDERIVMar 31A138,889——
Charles K. DarganCFODERIVFeb 1A300,000——
Kenneth Reay CodeChiefDec 31A54,803$0.18$10K
Dennis P. CalvertPresDec 31A130,222$0.18$24K
Linda ParkDirDERIVDec 31A101,736——
Christina Elaine BrayDirDERIVDec 31A101,736——
Jack B. StrommenDirDERIVDec 31A81,389——
Dennis E. MarshallDirDERIVDec 31A101,736——
Dennis E. MarshallDirDERIVDec 31A122,084——
Kenneth Reay CodeChiefNov 14A313,754$0.16$50K
Dennis P. CalvertPresNov 14A310,269$0.16$50K