DARGAN CHARLES K

Director at Banks.com, Inc. · on record since Jun 29, 2006
Chief Financial Officer at QS Energy, Inc. · on record since Feb 28, 2007
Chief Financial Officer at Ealixir, Inc. · on record since Apr 1, 2008
Chief Financial Officer at BIOLARGO, INC. · on record since Oct 2, 2015

Insider trading activity of DARGAN CHARLES K

Transactions on record: 115; since Mar 3, 2004

Open-market buys: 0

Open-market sells: 6; $41.4K

Companies traded: 4; last filing Feb 3, 2026

Figures computed from official regulatory filings — .

Companies where DARGAN CHARLES K has traded

BIOLARGO, INC.84 tx · $249K · Feb 3, 2026
Banks.com, Inc.10 tx · $96K · Jun 28, 2011
Ealixir, Inc.14 tx · $50.4K · Apr 1, 2008
QS Energy, Inc.7 tx · Aug 14, 2007

Track record of DARGAN CHARLES K

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of DARGAN CHARLES K

Co-insiders of DARGAN CHARLES K

Alexander JacquelineQS Energy, Inc.
BARRON PARTNERS LPBanks.com, Inc.
BAUTISTA JOHNQS Energy, Inc.
Bigger Greggory MQS Energy, Inc.
BLUM CHARLESQS Energy, Inc.
BOGATAY GARY W JRBanks.com, Inc.
Bolio StevenQS Energy, Inc.
Bray Christina ElaineBIOLARGO, INC.
Brockovich ErinQS Energy, Inc.
Brownell EliseBanks.com, Inc.
Browne VincentEalixir, Inc.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	1,005,882	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	OtherD (derivative)	-300,000	0.57 USD	$171K	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Aug 15, 2024	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jun 25, 2024	AwardD (derivative)	700,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Jul 19, 2023	AwardD (derivative)	500,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Mar 27, 2023	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Jan 3, 2023	AwardD (derivative)	205,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jul 5, 2022	AwardD (derivative)	150,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Apr 4, 2022	AwardD (derivative)	127,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Mar 28, 2022	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	2,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jan 5, 2021	AwardD (derivative)	7,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 8, 2020	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 8, 2020	AwardD (derivative)	2,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 2, 2020	AwardD (derivative)	5,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jul 2, 2020	AwardD (derivative)	5,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 5, 2020	AwardD (derivative)	214,286	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 5, 2020	AwardD (derivative)	7,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	1,005,882	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	OtherD (derivative)	-300,000	0.57 USD	$171K	SEC
BIOLARGO, INC.Listing on record	Feb 3, 2026	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Aug 15, 2024	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jun 25, 2024	AwardD (derivative)	700,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Jul 19, 2023	AwardD (derivative)	500,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Mar 27, 2023	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	Jan 3, 2023	AwardD (derivative)	205,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jul 5, 2022	AwardD (derivative)	150,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Apr 4, 2022	AwardD (derivative)	127,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Mar 28, 2022	AwardD (derivative)	300,000	—	n/a (No price was disclosed in the filing)	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	2,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 24, 2021	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jan 5, 2021	AwardD (derivative)	7,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 8, 2020	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 8, 2020	AwardD (derivative)	2,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Oct 2, 2020	AwardD (derivative)	5,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Jul 2, 2020	AwardD (derivative)	5,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 5, 2020	AwardD (derivative)	214,286	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	May 5, 2020	AwardD (derivative)	7,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
BIOLARGO, INC.Listing on record	Feb 27, 2020	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC