Marshall Dennis E

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
31 Dec 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.19	98,684	18.75 k	4,624,625
26 Dec 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.19	118,422	22.50 k	4,525,941
30 Sep 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.23	81,522	18.75 k	4,471,805
29 Sep 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.24	93,749	22.50 k	4,390,283
30 Jun 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.255	73,529	18.75 k	4,344,406
28 Jun 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.255	88,237	22.50 k	4,270,877
31 Mar 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.35	53,571	18.75 k	4,217,256
28 Mar 24	BLGO BioLargo	Option to Purchase Common Stock Common Stock	Grant	Acquire A	No	No	0.35	64,176	22.46 k	4,163,685

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.