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 — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2015-12-31$0.50$0.5017,200
2015-12-30$0.50$0.5021,500
2015-12-29$0.51$0.5151,600
2015-12-28$0.50$0.5035,800
2015-12-24$0.55$0.5519,100
2015-12-23$0.54$0.5443,000
2015-12-22$0.48$0.4846,000
2015-12-21$0.49$0.49105,600
2015-12-18$0.49$0.4984,900
2015-12-17$0.56$0.5621,100
2015-12-16$0.55$0.5516,800
2015-12-15$0.53$0.5319,100
2015-12-14$0.57$0.5723,300
2015-12-11$0.56$0.5655,000
2015-12-10$0.56$0.5661,500
2015-12-09$0.59$0.5921,500
2015-12-08$0.59$0.598,500
2015-12-07$0.59$0.5914,400
2015-12-04$0.60$0.6049,200
2015-12-03$0.60$0.6040,400
2015-12-02$0.57$0.57142,500
2015-12-01$0.60$0.60130,100
2015-11-30$0.60$0.60115,400
2015-11-27$0.60$0.6055,800
2015-11-25$0.59$0.5930,100
2015-11-24$0.58$0.5836,900
2015-11-23$0.58$0.5850,900
2015-11-20$0.56$0.5632,300
2015-11-19$0.56$0.56102,900
2015-11-18$0.56$0.5682,000
2015-11-17$0.57$0.5715,000
2015-11-16$0.54$0.5467,200
2015-11-13$0.60$0.6035,600
2015-11-12$0.60$0.6039,300
2015-11-11$0.60$0.6060,500
2015-11-10$0.58$0.5829,900
2015-11-09$0.58$0.5841,600
2015-11-06$0.57$0.5755,400
2015-11-05$0.62$0.6213,800
2015-11-04$0.60$0.60181,500
2015-11-03$0.64$0.64121,100
2015-11-02$0.64$0.6447,400
2015-10-30$0.65$0.65144,300
2015-10-29$0.66$0.66203,000
2015-10-28$0.50$0.507,100
2015-10-27$0.43$0.4339,400
2015-10-26$0.50$0.5036,400
2015-10-23$0.48$0.4849,300
2015-10-22$0.58$0.5821,200
2015-10-21$0.60$0.6046,100
2015-10-20$0.60$0.6031,800
2015-10-19$0.62$0.6214,300
2015-10-16$0.62$0.6213,400
2015-10-15$0.61$0.6136,800
2015-10-14$0.61$0.617,700
2015-10-13$0.61$0.618,800
2015-10-12$0.60$0.608,100
2015-10-09$0.59$0.595,900
2015-10-08$0.60$0.6047,100
2015-10-07$0.62$0.6253,200
2015-10-06$0.60$0.6046,100
2015-10-05$0.57$0.5744,300
2015-10-02$0.56$0.5617,000
2015-10-01$0.58$0.5834,300
2015-09-30$0.57$0.576,500
2015-09-29$0.59$0.5927,600
2015-09-28$0.55$0.5526,600
2015-09-25$0.59$0.5954,400
2015-09-24$0.57$0.57144,400
2015-09-23$0.67$0.678,500
2015-09-22$0.65$0.6578,500
2015-09-21$0.68$0.6899,400
2015-09-18$0.70$0.7046,600
2015-09-17$0.69$0.69132,000
2015-09-16$0.70$0.70183,700
2015-09-15$0.72$0.72377,100
2015-09-14$0.68$0.68303,100
2015-09-11$0.60$0.6098,200
2015-09-10$0.55$0.5580,000
2015-09-09$0.61$0.61119,400
2015-09-08$0.53$0.5363,500
2015-09-04$0.60$0.6066,100
2015-09-03$0.57$0.5716,600
2015-09-02$0.61$0.6180,500
2015-09-01$0.61$0.61210,700
2015-08-31$0.41$0.4148,100
2015-08-28$0.40$0.4016,300
2015-08-27$0.39$0.394,800
2015-08-26$0.35$0.3510,000
2015-08-25$0.35$0.3527,400
2015-08-24$0.33$0.3347,700
2015-08-21$0.37$0.3746,000
2015-08-20$0.38$0.3831,500
2015-08-19$0.43$0.4326,900
2015-08-18$0.43$0.4311,000
2015-08-17$0.43$0.4320,500
2015-08-14$0.45$0.4540,400
2015-08-13$0.42$0.4213,400
2015-08-12$0.42$0.42101,200
2015-08-11$0.39$0.3915,400
2015-08-10$0.40$0.4019,000
2015-08-07$0.39$0.3956,300
2015-08-06$0.36$0.3626,500
2015-08-05$0.35$0.350
2015-08-04$0.35$0.3556,800
2015-08-03$0.38$0.3818,800
2015-07-31$0.34$0.343,800
2015-07-30$0.34$0.341,000
2015-07-29$0.35$0.359,500
2015-07-28$0.36$0.3622,500
2015-07-27$0.35$0.353,500
2015-07-24$0.30$0.3010,000
2015-07-23$0.30$0.306,000
2015-07-22$0.35$0.350
2015-07-21$0.35$0.350
2015-07-20$0.35$0.357,600
2015-07-17$0.35$0.353,300
2015-07-16$0.33$0.3318,500
2015-07-15$0.33$0.331,700
2015-07-14$0.30$0.3018,000
2015-07-13$0.30$0.305,500
2015-07-10$0.30$0.301,000
2015-07-09$0.30$0.301,200
2015-07-08$0.33$0.33200
2015-07-07$0.30$0.3011,500
2015-07-06$0.33$0.3319,400
2015-07-02$0.30$0.300
2015-07-01$0.30$0.3026,800
2015-06-30$0.37$0.379,100
2015-06-29$0.35$0.3510,000
2015-06-26$0.35$0.352,000
2015-06-25$0.38$0.3816,000
2015-06-24$0.38$0.382,900
2015-06-23$0.35$0.359,800
2015-06-22$0.39$0.3975,800
2015-06-19$0.31$0.310
2015-06-18$0.31$0.313,000
2015-06-17$0.31$0.318,800
2015-06-16$0.34$0.343,900
2015-06-15$0.35$0.357,200
2015-06-12$0.38$0.3880,800
2015-06-11$0.35$0.3581,700
2015-06-10$0.32$0.3218,800
2015-06-09$0.28$0.2853,100
2015-06-08$0.29$0.290
2015-06-05$0.29$0.294,500
2015-06-04$0.27$0.2794,800
2015-06-03$0.31$0.3111,500
2015-06-02$0.30$0.308,000
2015-06-01$0.36$0.3682,400
2015-05-29$0.36$0.3632,600
2015-05-28$0.31$0.319,000
2015-05-27$0.27$0.270
2015-05-26$0.27$0.272,800
2015-05-22$0.28$0.282,600
2015-05-21$0.26$0.263,300
2015-05-20$0.31$0.3116,400
2015-05-19$0.33$0.3310,000
2015-05-18$0.32$0.3240,500
2015-05-15$0.31$0.3115,000
2015-05-14$0.30$0.3013,900
2015-05-13$0.35$0.35300
2015-05-12$0.31$0.3110,900
2015-05-11$0.31$0.3133,100
2015-05-08$0.30$0.3010,000
2015-05-07$0.29$0.290
2015-05-06$0.29$0.2942,700
2015-05-05$0.32$0.3215,100
2015-05-04$0.32$0.3217,300
2015-05-01$0.33$0.336,500
2015-04-30$0.32$0.323,500
2015-04-29$0.35$0.351,200
2015-04-28$0.31$0.313,500
2015-04-27$0.38$0.387,100
2015-04-24$0.38$0.3826,100
2015-04-23$0.38$0.3824,000
2015-04-22$0.38$0.384,200
2015-04-21$0.36$0.3623,700
2015-04-20$0.34$0.3429,500
2015-04-17$0.36$0.3617,100
2015-04-16$0.38$0.3820,000
2015-04-15$0.34$0.3463,400
2015-04-14$0.34$0.3410,000
2015-04-13$0.33$0.335,900
2015-04-10$0.33$0.338,000
2015-04-09$0.33$0.330
2015-04-08$0.33$0.338,400
2015-04-07$0.32$0.3215,000
2015-04-06$0.31$0.31300
2015-04-02$0.32$0.3210,200
2015-04-01$0.35$0.354,400
2015-03-31$0.36$0.366,200
2015-03-30$0.36$0.368,400
2015-03-27$0.38$0.3824,600
2015-03-26$0.36$0.364,000
2015-03-25$0.33$0.336,300
2015-03-24$0.38$0.383,000
2015-03-23$0.33$0.3318,500
2015-03-20$0.34$0.342,000
2015-03-19$0.36$0.367,000
2015-03-18$0.38$0.382,000
2015-03-17$0.30$0.3010,700
2015-03-16$0.32$0.3223,600
2015-03-13$0.38$0.380
2015-03-12$0.38$0.38200
2015-03-11$0.36$0.366,600
2015-03-10$0.37$0.3720,900
2015-03-09$0.38$0.384,000
2015-03-06$0.38$0.3853,800
2015-03-05$0.39$0.394,700
2015-03-04$0.38$0.383,100
2015-03-03$0.38$0.3819,000
2015-03-02$0.41$0.4121,000
2015-02-27$0.40$0.400
2015-02-26$0.40$0.4070,000
2015-02-25$0.44$0.4448,000
2015-02-24$0.40$0.4012,700
2015-02-23$0.46$0.467,500
2015-02-20$0.40$0.4012,700
2015-02-19$0.41$0.4122,900
2015-02-18$0.40$0.4012,600
2015-02-17$0.38$0.3827,300
2015-02-13$0.38$0.3832,800
2015-02-12$0.37$0.378,500
2015-02-11$0.35$0.3519,800
2015-02-10$0.31$0.3139,900
2015-02-09$0.33$0.33400
2015-02-06$0.30$0.3010,500
2015-02-05$0.33$0.336,800
2015-02-04$0.33$0.335,200
2015-02-03$0.32$0.3216,400
2015-02-02$0.30$0.3011,400
2015-01-30$0.30$0.302,200
2015-01-29$0.30$0.304,500
2015-01-28$0.28$0.280
2015-01-27$0.28$0.282,000
2015-01-26$0.28$0.283,000
2015-01-23$0.27$0.270
2015-01-22$0.27$0.2711,000
2015-01-21$0.27$0.2723,700
2015-01-20$0.30$0.3038,200
2015-01-16$0.37$0.3740,600
2015-01-15$0.35$0.3513,000
2015-01-14$0.31$0.315,000
2015-01-13$0.34$0.341,500
2015-01-12$0.35$0.350
2015-01-09$0.35$0.3545,000
2015-01-08$0.35$0.352,000
2015-01-07$0.35$0.357,000
2015-01-06$0.37$0.378,000
2015-01-05$0.35$0.3510,100
2015-01-02$0.31$0.310