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SEC EDGAR Form 4 ↗
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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 1 · filed Jul 2Details
Bray Christina Elainegranted165,198 shares ofBLGOJun 30 · filed Jul 2Details

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

Park Lindagranted165,198 shares ofBLGOJun 30 · filed Jul 2Details

STROMMEN JACK B.granted132,159 shares ofBLGOJun 30 · filed Jul 2Details

Marshall Dennis Egranted115,741 shares ofBLGOJun 30 · filed Jul 2Details

Marshall Dennis Egranted198,238 shares ofBLGOJun 30 · filed Jul 2Details

CALVERT DENNIS Pgranted699,569 shares ofBLGOat $0.114$79KJun 30 · filed Jul 2Details

Marshall Dennis Egranted40,909 shares ofBLGOJun 22 · filed Jun 24Details

Bray Christina Elainegranted115,741 shares ofBLGOMar 31 · filed Apr 1Details

Park Lindagranted115,741 shares ofBLGOMar 31 · filed Apr 1Details

STROMMEN JACK B.granted92,593 shares ofBLGOMar 31 · filed Apr 1Details

CODE KENNETH REAYgranted69,444 shares ofBLGOat $0.162$11KMar 31 · filed Apr 2Details

Marshall Dennis Egranted115,741 shares ofBLGOMar 31 · filed Apr 1Details

Marshall Dennis Egranted138,889 shares ofBLGOMar 31 · filed Apr 1Details

DARGAN CHARLES Kgranted300,000 shares ofBLGOFeb 1 · filed Feb 3Details

Bray Christina Elainegranted101,736 shares ofBLGODec 31, 2025 · filed Jan 5Details

Park Lindagranted101,736 shares ofBLGODec 31, 2025 · filed Jan 5Details

STROMMEN JACK B.granted81,389 shares ofBLGODec 31, 2025 · filed Jan 5Details

CODE KENNETH REAYgranted54,803 shares ofBLGOat $0.184$10KDec 31, 2025 · filed Jan 5Details

Marshall Dennis Egranted101,736 shares ofBLGODec 31, 2025 · filed Jan 5Details

Marshall Dennis Egranted122,084 shares ofBLGODec 31, 2025 · filed Jan 5Details

CALVERT DENNIS Pgranted130,222 shares ofBLGOat $0.184$24KDec 31, 2025 · filed Jan 5Details

CODE KENNETH REAYgranted313,754 shares ofBLGOat $0.16$50KNov 14, 2025 · filed Nov 17, 2025Details

CALVERT DENNIS Pgranted310,269 shares ofBLGOat $0.16$50KNov 14, 2025 · filed Nov 17, 2025Details

Bray Christina Elainegranted110,294 shares ofBLGOSep 30, 2025 · filed Oct 2, 2025Details

Park Lindagranted110,294 shares ofBLGOSep 30, 2025 · filed Oct 2, 2025Details

STROMMEN JACK B.granted88,235 shares ofBLGOSep 30, 2025 · filed Oct 2, 2025Details

Marshall Dennis Egranted110,294 shares ofBLGOSep 30, 2025 · filed Oct 2, 2025Details

Marshall Dennis Egranted132,351 shares ofBLGOSep 30, 2025 · filed Oct 2, 2025Details

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