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SEC EDGAR Form 4 ↗
CongressStock.com ↗
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© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.

Home/Companies/BIOLARGO, INC.

BIOLARGO, INC.

55 insider trades tracked

BLGO

Insider trades

55

Bought (open market)

$0

Sold (open market)

$0

Acquired (grants)

$412K

Unique insiders

7

Recent insider trades

Most recent Form 4 filings for BIOLARGO, INC..

CODE KENNETH REAYgranted532,567 shares ofBLGOat $0.114$60KJul 7Details
CALVERT DENNIS Pgranted219,914 shares ofBLGOat $0.113$25KJul 2Details
Bray Christina Elainegranted165,198 shares ofBLGOJul 2Details
Park Lindagranted165,198 shares ofBLGO

Insiders at this company

Executives and directors who have filed Form 4s.

Marshall Dennis E17 trades
Park Linda8 trades
Bray Christina Elaine8 trades
CODE KENNETH REAY7 trades
STROMMEN JACK B.7 trades
CALVERT DENNIS P6 trades
DARGAN CHARLES K2 trades

Explore insider screeners

Latest CEO & CFO Purchases Latest CEO & CFO Sales Director Purchases Officer Purchases Top Purchases This Week Top Sales This Week Top Officer Buys (Month)10% Owner Filings 10b5-1 Planned Trades Discretionary Trades Buy/Sell Ratios Politician–Insider Overlap

Jul 2

STROMMEN JACK B.granted132,159 shares ofBLGOJul 2Details

Marshall Dennis Egranted115,741 shares ofBLGOJul 2Details

Marshall Dennis Egranted198,238 shares ofBLGOJul 2Details

CALVERT DENNIS Pgranted699,569 shares ofBLGOat $0.114$79KJul 2Details

Marshall Dennis Egranted40,909 shares ofBLGOJun 24Details

Bray Christina Elainegranted115,741 shares ofBLGOApr 1Details

Park Lindagranted115,741 shares ofBLGOApr 1Details

STROMMEN JACK B.granted92,593 shares ofBLGOApr 1Details

CODE KENNETH REAYgranted69,444 shares ofBLGOat $0.162$11KApr 2Details

Marshall Dennis Egranted115,741 shares ofBLGOApr 1Details

Marshall Dennis Egranted138,889 shares ofBLGOApr 1Details

DARGAN CHARLES Kgranted300,000 shares ofBLGOFeb 3Details

Bray Christina Elainegranted101,736 shares ofBLGOJan 5Details

Park Lindagranted101,736 shares ofBLGOJan 5Details

STROMMEN JACK B.granted81,389 shares ofBLGOJan 5Details

CODE KENNETH REAYgranted54,803 shares ofBLGOat $0.184$10KJan 5Details

Marshall Dennis Egranted101,736 shares ofBLGOJan 5Details

Marshall Dennis Egranted122,084 shares ofBLGOJan 5Details

CALVERT DENNIS Pgranted130,222 shares ofBLGOat $0.184$24KJan 5Details

CODE KENNETH REAYgranted313,754 shares ofBLGOat $0.16$50KNov 17Details

CALVERT DENNIS Pgranted310,269 shares ofBLGOat $0.16$50KNov 17Details

Bray Christina Elainegranted110,294 shares ofBLGOOct 2Details

Park Lindagranted110,294 shares ofBLGOOct 2Details

STROMMEN JACK B.granted88,235 shares ofBLGOOct 2Details

Marshall Dennis Egranted110,294 shares ofBLGOOct 2Details

Marshall Dennis Egranted132,351 shares ofBLGOOct 2Details

View all trades for BLGO →

BIOLARGO, INC. (BLGO) — Insider Trading Activity | Insider Trading Screener