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Biolargo, Inc.
(BLGO US)
$0.07
+0.00
0.00%
Ext:
$0.07
+0.00
1.53%
(Market Closed · 20:00:00 UTC)
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BLGO US
SEC Filings by Owner
Select Filings
Insider Ownership
Marshall Dennis E
(84)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
2 Jul
4
Statement of changes in beneficial ownership
24 Jun
4
Statement of changes in beneficial ownership
1 Apr
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
2 Oct 2025
4
Statement of changes in beneficial ownership
2 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2025
4
Statement of changes in beneficial ownership
30 Dec 2024
4
Statement of changes in beneficial ownership
1 Oct 2024
DARGAN CHARLES K
(61)
Expand
4
Statement of changes in beneficial ownership
3 Feb
5
Annual statement of beneficial ownership
3 Feb
4
Statement of changes in beneficial ownership
15 Aug 2024
4
Statement of changes in beneficial ownership
25 Jun 2024
4
Statement of changes in beneficial ownership
19 Jul 2023
4
Statement of changes in beneficial ownership
27 Mar 2023
4
Statement of changes in beneficial ownership
3 Jan 2023
4
Statement of changes in beneficial ownership
5 Jul 2022
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
28 Mar 2022
CALVERT DENNIS P
(55)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
2 Jul
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
17 Nov 2025
4
Statement of changes in beneficial ownership
16 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2024
4
Statement of changes in beneficial ownership
26 Jul 2023
4
Statement of changes in beneficial ownership
5 Oct 2022
4
Statement of changes in beneficial ownership
8 Jul 2022
4
Statement of changes in beneficial ownership
30 Dec 2021
Roberts Kent Charles II
(55)
Expand
4
Statement of changes in beneficial ownership
5 Oct 2022
4
Statement of changes in beneficial ownership
5 Jul 2022
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
4 Jan 2022
4
Statement of changes in beneficial ownership
5 Oct 2021
4
Statement of changes in beneficial ownership
6 Jul 2021
4
Statement of changes in beneficial ownership
5 Apr 2021
4
Statement of changes in beneficial ownership
4 Jan 2021
4
Statement of changes in beneficial ownership
1 Oct 2020
CODE KENNETH REAY
(51)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
7 Jul
4
Statement of changes in beneficial ownership
2 Apr
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
17 Nov 2025
4
Statement of changes in beneficial ownership
16 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2025
4
Statement of changes in beneficial ownership
3 Jan 2024
4
Statement of changes in beneficial ownership
3 Oct 2023
4
Statement of changes in beneficial ownership
5 Jul 2023
Runyan John S.
(50)
Expand
4
Statement of changes in beneficial ownership
5 Oct 2022
4
Statement of changes in beneficial ownership
5 Jul 2022
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
4 Jan 2022
4
Statement of changes in beneficial ownership
5 Oct 2021
4
Statement of changes in beneficial ownership
6 Jul 2021
4
Statement of changes in beneficial ownership
5 Apr 2021
4
Statement of changes in beneficial ownership
4 Jan 2021
4
Statement of changes in beneficial ownership
1 Oct 2020
STROMMEN JACK B.
(46)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
2 Jul
4
Statement of changes in beneficial ownership
1 Apr
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
2 Oct 2025
4
Statement of changes in beneficial ownership
2 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2025
4
Statement of changes in beneficial ownership
2 Oct 2024
4
Statement of changes in beneficial ownership
1 Jul 2024
4
Statement of changes in beneficial ownership
2 Apr 2024
COX GARY ADRIAN
(40)
Expand
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
4 Jan 2017
4
Statement of changes in beneficial ownership
4 Oct 2016
4
Statement of changes in beneficial ownership
1 Jul 2016
4
Statement of changes in beneficial ownership
22 Jun 2016
4
Statement of changes in beneficial ownership
1 Apr 2016
4
Statement of changes in beneficial ownership
5 Jan 2016
4
Statement of changes in beneficial ownership
25 Sep 2015
4
Statement of changes in beneficial ownership
1 Jul 2015
4
Statement of changes in beneficial ownership
26 Jun 2015
PROVENZANO JOSEPH L
(27)
Expand
4
Statement of changes in beneficial ownership
4 Apr 2022
4
Statement of changes in beneficial ownership
10 Jan 2022
4
Statement of changes in beneficial ownership
24 May 2021
4
Statement of changes in beneficial ownership
8 Oct 2020
4
Statement of changes in beneficial ownership
5 May 2020
4
Statement of changes in beneficial ownership
23 Sep 2019
4
Statement of changes in beneficial ownership
24 Jun 2019
4
Statement of changes in beneficial ownership
24 Oct 2017
4
Statement of changes in beneficial ownership
5 Jan 2016
4
Statement of changes in beneficial ownership
25 Sep 2015
Park Linda
(16)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
2 Jul
4
Statement of changes in beneficial ownership
1 Apr
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
2 Oct 2025
4
Statement of changes in beneficial ownership
2 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2025
4
Statement of changes in beneficial ownership
2 Oct 2024
4
Statement of changes in beneficial ownership
1 Jul 2024
4
Statement of changes in beneficial ownership
2 Apr 2024
Bray Christina Elaine
(16)
Expand
4
Statement of changes in beneficial ownership
2 Oct
4
Statement of changes in beneficial ownership
2 Jul
4
Statement of changes in beneficial ownership
1 Apr
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
2 Oct 2025
4
Statement of changes in beneficial ownership
2 Jul 2025
4
Statement of changes in beneficial ownership
3 Jan 2025
4
Statement of changes in beneficial ownership
2 Oct 2024
4
Statement of changes in beneficial ownership
1 Jul 2024
4
Statement of changes in beneficial ownership
2 Apr 2024
New Millennium Capital Partners, LLC
(8)
Expand
4
PRIMARY DOCUMENT
27 Dec 2010
4
PRIMARY DOCUMENT
4 Aug 2010
4
PRIMARY DOCUMENT
4 May 2009
4
PRIMARY DOCUMENT
5 Nov 2008
4/A
PRIMARY DOCUMENT
25 Nov 2008
4
PRIMARY DOCUMENT
11 Jun 2008
5
PRIMARY DOCUMENT
14 Feb 2008
3
PRIMARY DOCUMENT
17 Apr 2007
SANDERS TODD
(7)
Expand
4
Statement of changes in beneficial ownership
10 May 2002
4
Statement of changes in beneficial ownership
4 Mar 2002
4
Statement of changes in beneficial ownership
4 Mar 2002
4
Statement of changes in beneficial ownership
10 Jan 2001
4
Statement of changes in beneficial ownership
10 Jan 2001
4
Statement of changes in beneficial ownership
11 Dec 2000
3
Initial statement of beneficial ownership
3 Nov 2000
AUGUSTINE FUND LP
(6)
Expand
4
Statement of changes in beneficial ownership
10 Oct 2002
4
Statement of changes in beneficial ownership
7 Oct 2002
4
Statement of changes in beneficial ownership
3 Oct 2002
4
Statement of changes in beneficial ownership
26 Aug 2002
4
Statement of changes in beneficial ownership
16 Jan 2001
3
Initial statement of beneficial ownership
18 Oct 2000
HARRISON STEVEN V
(5)
Expand
4
PRIMARY DOCUMENT
18 Jul 2005
4
PRIMARY DOCUMENT
30 Mar 2004
4
PRIMARY DOCUMENT
24 Sep 2003
4
PRIMARY DOCUMENT
19 Sep 2003
4
PRIMARY DOCUMENT
24 Jul 2003
RUIZ EDUARDO
(3)
Expand
4
PRIMARY DOCUMENT
15 Oct 2004
4/A
PRIMARY DOCUMENT
15 Oct 2004
3
PRIMARY DOCUMENT
9 Feb 2004
RUIZ LUIS
(3)
Expand
4/A
PRIMARY DOCUMENT
15 Oct 2004
4
PRIMARY DOCUMENT
15 Oct 2004
3
PRIMARY DOCUMENT
9 Feb 2004
LYONS GERALDINE
(2)
Expand
4
Statement of changes in beneficial ownership
12 Oct 2001
5
Annual statement of beneficial ownership
15 Feb 2001
BOSSUNG WILLIAM C
(1)
Expand
3
Initial statement of beneficial ownership
3 Nov 2000
CABALLERO JOSE
(1)
Expand
5
Annual statement of beneficial ownership
15 Feb 2001
FELDER JEFFREY A
(1)
Expand
5
Annual statement of beneficial ownership
16 Feb 2001
GARCIA ANGEL E
(1)
Expand
5
Annual statement of beneficial ownership
15 Feb 2001
BARRY DENNIS
(1)
Expand
5
Annual statement of beneficial ownership
15 Feb 2001
ISCOVE MICHAEL
(1)
Expand
5
Annual statement of beneficial ownership
27 Feb 2001
IOWC Technologies, Inc.
(1)
Expand
4
PRIMARY DOCUMENT
2 May 2007
≥5% Ownership
AUGUSTINE FUND LP
(3)
Expand
SC 13G
Biolargo, Inc.
16 Feb 2010
SC 13D/A
Nuway Energy Inc
23 Aug 2002
SC 13D
Latin American Casinos Inc
18 Oct 2000
MEYERSON M H & CO INC /NJ/
(2)
Expand
SC 13G/A
Latin American Casinos Inc
9 Feb 2000
SC 13G
Latin American Casinos Inc
11 Aug 1999
CALVERT DENNIS P
(2)
Expand
SC 13D/A
Nuway Medical Inc
17 Nov 2003
SC 13D
Nuway Medical Inc
23 Apr 2003
STROMMEN JACK B.
(2)
Expand
SC 13D
Biolargo, Inc.
30 Jun 2017
SC 13G
Biolargo, Inc.
8 Jan 2016
LATIN AMERICAN CASINOS INC
(1)
Expand
SC 13D/A
Latin American Casinos Inc
17 Jan 2001
KOOCK KENNETH J
(1)
Expand
SC 13G
Latin American Casinos Inc
9 Feb 2000
ALFORD JON L
(1)
Expand
SC 13D
Nuway Medical Inc
22 Oct 2003
Augustine II, LLC
(1)
Expand
SC 13G
Biolargo, Inc.
14 Feb 2008
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