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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2019-12-31$0.22$0.22136,600
2019-12-30$0.22$0.22220,800
2019-12-27$0.24$0.24207,200
2019-12-26$0.23$0.23156,000
2019-12-24$0.22$0.2260,600
2019-12-23$0.22$0.22274,400
2019-12-20$0.23$0.23118,400
2019-12-19$0.23$0.23299,500
2019-12-18$0.24$0.24107,200
2019-12-17$0.24$0.24156,400
2019-12-16$0.24$0.24219,200
2019-12-13$0.27$0.2761,400
2019-12-12$0.27$0.27167,300
2019-12-11$0.28$0.281,108,200
2019-12-10$0.23$0.2388,400
2019-12-09$0.22$0.22168,900
2019-12-06$0.23$0.23220,900
2019-12-05$0.22$0.22550,700
2019-12-04$0.23$0.23108,600
2019-12-03$0.23$0.23429,200
2019-12-02$0.25$0.2546,900
2019-11-29$0.25$0.2592,700
2019-11-27$0.26$0.2683,000
2019-11-26$0.25$0.25138,200
2019-11-25$0.25$0.2545,500
2019-11-22$0.25$0.2578,300
2019-11-21$0.24$0.24168,200
2019-11-20$0.26$0.26180,500
2019-11-19$0.25$0.25128,000
2019-11-18$0.26$0.26112,100
2019-11-15$0.28$0.28241,000
2019-11-14$0.27$0.27124,400
2019-11-13$0.29$0.29102,500
2019-11-12$0.27$0.27330,700
2019-11-11$0.23$0.23249,600
2019-11-08$0.23$0.23491,200
2019-11-07$0.25$0.25141,800
2019-11-06$0.25$0.25276,400
2019-11-05$0.26$0.26270,600
2019-11-04$0.27$0.2797,100
2019-11-01$0.28$0.28153,200
2019-10-31$0.28$0.28242,100
2019-10-30$0.28$0.28180,900
2019-10-29$0.29$0.29310,100
2019-10-28$0.31$0.31235,000
2019-10-25$0.33$0.3376,900
2019-10-24$0.33$0.33312,900
2019-10-23$0.33$0.33344,400
2019-10-22$0.33$0.33180,100
2019-10-21$0.36$0.36468,200
2019-10-18$0.35$0.35233,500
2019-10-17$0.36$0.36710,400
2019-10-16$0.36$0.36309,600
2019-10-15$0.34$0.34237,300
2019-10-14$0.35$0.35327,700
2019-10-11$0.30$0.30215,800
2019-10-10$0.29$0.29303,800
2019-10-09$0.28$0.28202,000
2019-10-08$0.27$0.2774,900
2019-10-07$0.28$0.2895,800
2019-10-04$0.27$0.2780,000
2019-10-03$0.28$0.28111,000
2019-10-02$0.26$0.26366,700
2019-10-01$0.31$0.31188,500
2019-09-30$0.31$0.31104,900
2019-09-27$0.32$0.3293,100
2019-09-26$0.32$0.32167,000
2019-09-25$0.30$0.30205,400
2019-09-24$0.32$0.32379,300
2019-09-23$0.31$0.311,607,600
2019-09-20$0.23$0.2368,000
2019-09-19$0.22$0.225,400
2019-09-18$0.22$0.2251,300
2019-09-17$0.22$0.2245,500
2019-09-16$0.22$0.2253,800
2019-09-13$0.23$0.23164,800
2019-09-12$0.24$0.2444,900
2019-09-11$0.22$0.22132,100
2019-09-10$0.24$0.2482,500
2019-09-09$0.23$0.23142,400
2019-09-06$0.24$0.2450,700
2019-09-05$0.23$0.2343,000
2019-09-04$0.23$0.2351,300
2019-09-03$0.24$0.2484,200
2019-08-30$0.24$0.2493,200
2019-08-29$0.23$0.2349,900
2019-08-28$0.23$0.23136,500
2019-08-27$0.24$0.24112,700
2019-08-26$0.25$0.25206,700
2019-08-23$0.24$0.2447,500
2019-08-22$0.24$0.2491,900
2019-08-21$0.25$0.2589,600
2019-08-20$0.24$0.24147,100
2019-08-19$0.25$0.250
2019-08-16$0.25$0.250
2019-08-15$0.25$0.25110,300
2019-08-14$0.25$0.25388,200
2019-08-13$0.26$0.26323,600
2019-08-12$0.25$0.25167,500
2019-08-09$0.24$0.24118,400
2019-08-08$0.25$0.25146,300
2019-08-07$0.25$0.25125,600
2019-08-06$0.24$0.241,218,100
2019-08-05$0.28$0.28348,600
2019-08-02$0.28$0.28323,300
2019-08-01$0.30$0.3087,500
2019-07-31$0.28$0.28269,200
2019-07-30$0.28$0.28311,900
2019-07-29$0.27$0.27588,700
2019-07-26$0.32$0.32676,100
2019-07-25$0.33$0.33134,900
2019-07-24$0.32$0.32223,800
2019-07-23$0.34$0.34361,500
2019-07-22$0.38$0.38617,500
2019-07-19$0.36$0.36347,200
2019-07-18$0.34$0.34365,300
2019-07-17$0.38$0.38278,700
2019-07-16$0.35$0.35255,900
2019-07-15$0.35$0.35183,100
2019-07-12$0.32$0.32422,800
2019-07-11$0.30$0.30677,700
2019-07-10$0.26$0.2666,300
2019-07-09$0.26$0.2668,300
2019-07-08$0.26$0.26197,400
2019-07-05$0.25$0.25148,100
2019-07-03$0.25$0.2576,500
2019-07-02$0.25$0.25136,700
2019-07-01$0.24$0.2442,100
2019-06-28$0.23$0.2355,200
2019-06-27$0.22$0.2258,100
2019-06-26$0.21$0.2140,100
2019-06-25$0.22$0.22116,400
2019-06-24$0.23$0.23569,500
2019-06-21$0.23$0.23434,900
2019-06-20$0.25$0.25181,600
2019-06-19$0.24$0.24213,100
2019-06-18$0.22$0.22126,100
2019-06-17$0.25$0.25500,300
2019-06-14$0.21$0.21476,400
2019-06-13$0.23$0.23597,500
2019-06-12$0.25$0.25741,600
2019-06-11$0.28$0.281,051,700
2019-06-10$0.31$0.31413,000
2019-06-07$0.29$0.29563,300
2019-06-06$0.26$0.26753,700
2019-06-05$0.22$0.22436,000
2019-06-04$0.18$0.18818,700
2019-06-03$0.18$0.1861,500
2019-05-31$0.18$0.1828,000
2019-05-30$0.18$0.1810,000
2019-05-29$0.17$0.177,000
2019-05-28$0.17$0.1719,900
2019-05-24$0.18$0.1867,400
2019-05-23$0.17$0.17146,400
2019-05-22$0.18$0.1880,300
2019-05-21$0.18$0.1835,000
2019-05-20$0.18$0.18126,000
2019-05-17$0.17$0.1780,900
2019-05-16$0.17$0.1788,200
2019-05-15$0.16$0.1624,500
2019-05-14$0.17$0.1736,000
2019-05-13$0.18$0.18119,400
2019-05-10$0.18$0.1832,000
2019-05-09$0.17$0.176,200
2019-05-08$0.19$0.1915,100
2019-05-07$0.17$0.1735,000
2019-05-06$0.17$0.1768,300
2019-05-03$0.16$0.1652,800
2019-05-02$0.17$0.1731,100
2019-05-01$0.17$0.1724,500
2019-04-30$0.16$0.1663,800
2019-04-29$0.16$0.16185,500
2019-04-26$0.16$0.1687,500
2019-04-25$0.17$0.1751,700
2019-04-24$0.17$0.1714,500
2019-04-23$0.18$0.1861,400
2019-04-22$0.17$0.1752,500
2019-04-18$0.18$0.1815,500
2019-04-17$0.18$0.1851,800
2019-04-16$0.18$0.1869,900
2019-04-15$0.18$0.1867,700
2019-04-12$0.17$0.17145,600
2019-04-11$0.17$0.1723,200
2019-04-10$0.17$0.171,000
2019-04-09$0.17$0.1756,500
2019-04-08$0.17$0.1719,900
2019-04-05$0.17$0.17248,700
2019-04-04$0.17$0.1787,600
2019-04-03$0.18$0.1863,400
2019-04-02$0.18$0.1853,200
2019-04-01$0.18$0.1890,300
2019-03-29$0.16$0.16102,000
2019-03-28$0.17$0.1749,900
2019-03-27$0.17$0.1757,000
2019-03-26$0.17$0.17111,000
2019-03-25$0.17$0.1776,300
2019-03-22$0.18$0.1864,700
2019-03-21$0.17$0.1781,600
2019-03-20$0.17$0.17154,900
2019-03-19$0.17$0.17175,600
2019-03-18$0.18$0.18291,900
2019-03-15$0.19$0.19112,500
2019-03-14$0.17$0.17169,800
2019-03-13$0.17$0.17486,600
2019-03-12$0.17$0.17664,200
2019-03-11$0.17$0.17367,100
2019-03-08$0.17$0.17279,800
2019-03-07$0.19$0.19790,400
2019-03-06$0.17$0.17232,600
2019-03-05$0.17$0.17377,300
2019-03-04$0.18$0.18197,200
2019-03-01$0.19$0.19398,700
2019-02-28$0.20$0.2068,700
2019-02-27$0.22$0.22138,200
2019-02-26$0.20$0.2025,400
2019-02-25$0.20$0.20136,800
2019-02-22$0.20$0.20187,700
2019-02-21$0.20$0.20214,900
2019-02-20$0.22$0.2212,100
2019-02-19$0.22$0.224,300
2019-02-15$0.21$0.2166,800
2019-02-14$0.21$0.2156,200
2019-02-13$0.20$0.2041,800
2019-02-12$0.21$0.21151,000
2019-02-11$0.22$0.2251,500
2019-02-08$0.22$0.2254,800
2019-02-07$0.21$0.2147,300
2019-02-06$0.21$0.2153,200
2019-02-05$0.24$0.24182,400
2019-02-04$0.23$0.2393,000
2019-02-01$0.22$0.2297,600
2019-01-31$0.22$0.2245,100
2019-01-30$0.23$0.2351,400
2019-01-29$0.25$0.2570,200
2019-01-28$0.23$0.2313,000
2019-01-25$0.24$0.24144,300
2019-01-24$0.23$0.23240,300
2019-01-23$0.22$0.2244,000
2019-01-22$0.22$0.22126,800
2019-01-18$0.23$0.2341,200
2019-01-17$0.23$0.23132,400
2019-01-16$0.22$0.2238,200
2019-01-15$0.22$0.2258,400
2019-01-14$0.25$0.2534,500
2019-01-11$0.27$0.2772,900
2019-01-10$0.26$0.26116,200
2019-01-09$0.26$0.2644,300
2019-01-08$0.24$0.2412,000
2019-01-07$0.26$0.2673,300
2019-01-04$0.27$0.27325,700
2019-01-03$0.27$0.2722,600
2019-01-02$0.23$0.23168,400