OTC:BLGO | Historical Stock Price | BIOLARGO, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2007-03-22 to 2026-08-27
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.10$0.17$0.31$0.57$1.04$1.892007-03-222026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2010-12-31$0.50$0.5013,200
2010-12-30$0.50$0.505,900
2010-12-29$0.51$0.5119,600
2010-12-28$0.45$0.4510,200
2010-12-27$0.50$0.500
2010-12-23$0.50$0.500
2010-12-22$0.50$0.500
2010-12-21$0.50$0.5013,800
2010-12-20$0.55$0.551,300
2010-12-17$0.55$0.554,800
2010-12-16$0.52$0.521,000
2010-12-15$0.52$0.526,100
2010-12-14$0.55$0.5514,000
2010-12-13$0.55$0.554,000
2010-12-10$0.53$0.5315,500
2010-12-09$0.48$0.48300
2010-12-08$0.50$0.5025,100
2010-12-07$0.47$0.47400
2010-12-06$0.53$0.537,400
2010-12-03$0.53$0.5312,700
2010-12-02$0.50$0.5040,700
2010-12-01$0.45$0.4557,000
2010-11-30$0.40$0.4015,900
2010-11-29$0.45$0.450
2010-11-26$0.45$0.450
2010-11-24$0.45$0.4512,500
2010-11-23$0.43$0.4314,100
2010-11-22$0.40$0.408,000
2010-11-19$0.40$0.4014,800
2010-11-18$0.40$0.401,000
2010-11-17$0.40$0.40500
2010-11-16$0.40$0.400
2010-11-15$0.40$0.405,200
2010-11-12$0.40$0.409,000
2010-11-11$0.35$0.354,000
2010-11-10$0.35$0.350
2010-11-09$0.35$0.356,300
2010-11-08$0.40$0.4029,000
2010-11-05$0.40$0.407,200
2010-11-04$0.40$0.40100
2010-11-03$0.35$0.3511,500
2010-11-02$0.43$0.430
2010-11-01$0.43$0.432,600
2010-10-29$0.42$0.42100
2010-10-28$0.40$0.4012,900
2010-10-27$0.45$0.454,700
2010-10-26$0.40$0.4010,000
2010-10-25$0.35$0.350
2010-10-22$0.35$0.350
2010-10-21$0.35$0.355,000
2010-10-20$0.36$0.365,000
2010-10-19$0.35$0.3510,000
2010-10-18$0.35$0.3512,200
2010-10-15$0.37$0.3722,400
2010-10-14$0.40$0.400
2010-10-13$0.40$0.401,100
2010-10-12$0.35$0.350
2010-10-11$0.35$0.35200
2010-10-08$0.39$0.390
2010-10-07$0.39$0.3911,000
2010-10-06$0.39$0.3920,100
2010-10-05$0.40$0.4025,700
2010-10-04$0.35$0.35300
2010-10-01$0.35$0.3518,000
2010-09-30$0.35$0.3549,600
2010-09-29$0.29$0.2911,100
2010-09-28$0.30$0.30500
2010-09-27$0.32$0.32500
2010-09-24$0.28$0.28200
2010-09-23$0.35$0.350
2010-09-22$0.35$0.355,100
2010-09-21$0.32$0.320
2010-09-20$0.32$0.320
2010-09-17$0.32$0.3227,500
2010-09-16$0.30$0.300
2010-09-15$0.30$0.300
2010-09-14$0.30$0.3047,700
2010-09-13$0.30$0.301,200
2010-09-10$0.30$0.305,700
2010-09-09$0.30$0.305,600
2010-09-08$0.30$0.30400
2010-09-07$0.29$0.2919,200
2010-09-03$0.30$0.3027,400
2010-09-02$0.30$0.30127,000
2010-09-01$0.25$0.2534,500
2010-08-31$0.23$0.2310,600
2010-08-30$0.25$0.2517,800
2010-08-27$0.22$0.2281,100
2010-08-26$0.23$0.2344,400
2010-08-25$0.23$0.2346,000
2010-08-24$0.25$0.2540,700
2010-08-23$0.23$0.2337,000
2010-08-20$0.23$0.2390,000
2010-08-19$0.20$0.20130,400
2010-08-18$0.15$0.1575,700
2010-08-17$0.20$0.2084,600
2010-08-16$0.20$0.2025,000
2010-08-13$0.20$0.2026,000
2010-08-12$0.20$0.2083,500
2010-08-11$0.21$0.2175,100
2010-08-10$0.22$0.220
2010-08-09$0.22$0.2226,000
2010-08-06$0.22$0.2288,200
2010-08-05$0.18$0.1838,100
2010-08-04$0.23$0.2321,800
2010-08-03$0.23$0.2323,500
2010-08-02$0.24$0.2415,000
2010-07-30$0.24$0.2419,000
2010-07-29$0.25$0.2520,000
2010-07-28$0.28$0.280
2010-07-27$0.28$0.2850,800
2010-07-26$0.28$0.2815,000
2010-07-23$0.25$0.250
2010-07-22$0.25$0.250
2010-07-21$0.25$0.257,000
2010-07-20$0.22$0.2217,200
2010-07-19$0.30$0.3010,400
2010-07-16$0.25$0.2514,000
2010-07-15$0.25$0.250
2010-07-14$0.25$0.250
2010-07-13$0.25$0.255,500
2010-07-12$0.25$0.2513,400
2010-07-09$0.35$0.350
2010-07-08$0.35$0.350
2010-07-07$0.35$0.350
2010-07-06$0.35$0.3512,000
2010-07-02$0.35$0.358,200
2010-07-01$0.40$0.40500
2010-06-30$0.25$0.250
2010-06-29$0.25$0.252,000
2010-06-28$0.25$0.250
2010-06-25$0.25$0.25500
2010-06-24$0.30$0.300
2010-06-23$0.30$0.300
2010-06-22$0.30$0.300
2010-06-21$0.30$0.3014,400
2010-06-18$0.39$0.390
2010-06-17$0.39$0.390
2010-06-16$0.39$0.393,200
2010-06-15$0.35$0.3514,200
2010-06-14$0.35$0.353,000
2010-06-11$0.40$0.4010,000
2010-06-10$0.40$0.400
2010-06-09$0.40$0.400
2010-06-08$0.40$0.400
2010-06-07$0.40$0.400
2010-06-04$0.40$0.400
2010-06-03$0.40$0.400
2010-06-02$0.40$0.400
2010-06-01$0.40$0.401,000
2010-05-28$0.31$0.31200
2010-05-27$0.40$0.40100
2010-05-26$0.40$0.400
2010-05-25$0.40$0.400
2010-05-24$0.40$0.400
2010-05-21$0.40$0.400
2010-05-20$0.40$0.400
2010-05-19$0.40$0.400
2010-05-18$0.40$0.400
2010-05-17$0.40$0.401,000
2010-05-14$0.35$0.3512,000
2010-05-13$0.35$0.356,600
2010-05-12$0.40$0.4038,000
2010-05-11$0.40$0.408,000
2010-05-10$0.40$0.407,500
2010-05-07$0.40$0.404,700
2010-05-06$0.33$0.3313,900
2010-05-05$0.35$0.3544,900
2010-05-04$0.40$0.4014,500
2010-05-03$0.40$0.4025,900
2010-04-30$0.39$0.39300
2010-04-29$0.36$0.360
2010-04-28$0.36$0.3614,900
2010-04-27$0.40$0.400
2010-04-26$0.40$0.403,100
2010-04-23$0.48$0.48500
2010-04-22$0.48$0.480
2010-04-21$0.48$0.480
2010-04-20$0.48$0.48300
2010-04-19$0.40$0.400
2010-04-16$0.40$0.408,400
2010-04-15$0.40$0.403,000
2010-04-14$0.50$0.500
2010-04-13$0.50$0.507,600
2010-04-12$0.45$0.450
2010-04-09$0.45$0.4510,000
2010-04-08$0.50$0.5014,500
2010-04-07$0.40$0.4024,000
2010-04-06$0.35$0.3531,800
2010-04-05$0.40$0.405,000
2010-04-01$0.45$0.456,400
2010-03-31$0.50$0.505,100
2010-03-30$0.50$0.5033,500
2010-03-29$0.45$0.4526,300
2010-03-26$0.45$0.450
2010-03-25$0.45$0.4531,200
2010-03-24$0.42$0.4225,700
2010-03-23$0.35$0.3545,700
2010-03-22$0.42$0.4218,200
2010-03-19$0.51$0.515,000
2010-03-18$0.42$0.420
2010-03-17$0.42$0.4230,800
2010-03-16$0.53$0.5318,300
2010-03-15$0.45$0.4513,000
2010-03-12$0.50$0.504,500
2010-03-11$0.45$0.450
2010-03-10$0.45$0.453,500
2010-03-09$0.50$0.501,000
2010-03-08$0.46$0.46200
2010-03-05$0.46$0.46100
2010-03-04$0.45$0.4515,700
2010-03-03$0.52$0.526,100
2010-03-02$0.52$0.5213,600
2010-03-01$0.51$0.5125,900
2010-02-26$0.45$0.450
2010-02-25$0.45$0.455,700
2010-02-24$0.60$0.6025,300
2010-02-23$0.42$0.4220,000
2010-02-22$0.45$0.450
2010-02-19$0.45$0.453,500
2010-02-18$0.45$0.451,500
2010-02-17$0.45$0.450
2010-02-16$0.45$0.450
2010-02-12$0.45$0.450
2010-02-11$0.45$0.450
2010-02-10$0.45$0.4512,100
2010-02-09$0.51$0.513,100
2010-02-08$0.51$0.514,500
2010-02-05$0.51$0.516,000
2010-02-04$0.51$0.510
2010-02-03$0.51$0.5115,600
2010-02-02$0.50$0.50400
2010-02-01$0.50$0.500
2010-01-29$0.50$0.509,000
2010-01-28$0.45$0.450
2010-01-27$0.45$0.450
2010-01-26$0.45$0.452,500
2010-01-25$0.45$0.458,400
2010-01-22$0.50$0.503,000
2010-01-21$0.59$0.590
2010-01-20$0.59$0.5926,500
2010-01-19$0.50$0.500
2010-01-15$0.50$0.500
2010-01-14$0.50$0.500
2010-01-13$0.50$0.5014,500
2010-01-12$0.50$0.50400
2010-01-11$0.70$0.700
2010-01-08$0.70$0.700
2010-01-07$0.70$0.700
2010-01-06$0.70$0.700
2010-01-05$0.70$0.700
2010-01-04$0.70$0.70300