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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2020-12-31$0.12$0.12273,800
2020-12-30$0.12$0.12372,600
2020-12-29$0.12$0.12848,400
2020-12-28$0.12$0.12675,900
2020-12-24$0.14$0.14212,500
2020-12-23$0.13$0.13233,000
2020-12-22$0.13$0.13408,100
2020-12-21$0.13$0.13489,200
2020-12-18$0.12$0.12332,900
2020-12-17$0.12$0.12232,300
2020-12-16$0.12$0.12256,700
2020-12-15$0.13$0.1389,900
2020-12-14$0.13$0.13155,500
2020-12-11$0.13$0.13177,900
2020-12-10$0.13$0.13162,600
2020-12-09$0.13$0.13375,700
2020-12-08$0.13$0.13323,000
2020-12-07$0.14$0.14158,900
2020-12-04$0.14$0.14208,500
2020-12-03$0.15$0.15322,800
2020-12-02$0.15$0.15110,700
2020-12-01$0.16$0.16461,900
2020-11-30$0.16$0.16526,900
2020-11-27$0.14$0.1420,000
2020-11-25$0.14$0.1494,700
2020-11-24$0.15$0.1576,800
2020-11-23$0.15$0.15151,000
2020-11-20$0.15$0.1592,800
2020-11-19$0.15$0.15259,100
2020-11-18$0.15$0.1582,000
2020-11-17$0.14$0.14260,000
2020-11-16$0.13$0.13107,500
2020-11-13$0.13$0.1375,600
2020-11-12$0.13$0.1366,500
2020-11-11$0.13$0.1380,100
2020-11-10$0.13$0.1345,400
2020-11-09$0.13$0.13253,500
2020-11-06$0.13$0.13170,400
2020-11-05$0.13$0.1319,200
2020-11-04$0.13$0.1364,800
2020-11-03$0.13$0.13156,600
2020-11-02$0.13$0.13195,900
2020-10-30$0.13$0.13127,700
2020-10-29$0.13$0.13207,200
2020-10-28$0.14$0.1485,900
2020-10-27$0.14$0.14140,700
2020-10-26$0.14$0.14288,900
2020-10-23$0.15$0.1554,300
2020-10-22$0.15$0.1563,300
2020-10-21$0.15$0.15114,400
2020-10-20$0.15$0.1594,600
2020-10-19$0.15$0.1585,900
2020-10-16$0.15$0.1562,200
2020-10-15$0.15$0.15246,600
2020-10-14$0.15$0.15195,200
2020-10-13$0.14$0.14713,900
2020-10-12$0.15$0.15198,400
2020-10-09$0.15$0.15235,200
2020-10-08$0.15$0.15132,400
2020-10-07$0.15$0.1576,100
2020-10-06$0.14$0.14218,500
2020-10-05$0.15$0.1577,800
2020-10-02$0.15$0.15186,000
2020-10-01$0.15$0.15252,600
2020-09-30$0.15$0.15226,000
2020-09-29$0.15$0.15194,800
2020-09-28$0.16$0.16733,000
2020-09-25$0.15$0.15413,000
2020-09-24$0.15$0.15110,400
2020-09-23$0.15$0.1599,600
2020-09-22$0.15$0.15399,800
2020-09-21$0.15$0.1589,100
2020-09-18$0.15$0.15235,200
2020-09-17$0.15$0.15363,300
2020-09-16$0.15$0.1597,100
2020-09-15$0.16$0.16260,700
2020-09-14$0.16$0.16105,600
2020-09-11$0.16$0.1671,800
2020-09-10$0.16$0.16175,000
2020-09-09$0.17$0.17133,200
2020-09-08$0.17$0.17140,300
2020-09-04$0.17$0.17198,300
2020-09-03$0.17$0.17469,700
2020-09-02$0.18$0.18408,700
2020-09-01$0.17$0.1779,900
2020-08-31$0.17$0.17239,800
2020-08-28$0.18$0.18267,500
2020-08-27$0.18$0.18364,700
2020-08-26$0.18$0.18267,300
2020-08-25$0.17$0.17234,000
2020-08-24$0.16$0.16424,200
2020-08-21$0.16$0.16606,600
2020-08-20$0.16$0.16165,400
2020-08-19$0.16$0.16287,200
2020-08-18$0.16$0.1676,200
2020-08-17$0.16$0.16428,300
2020-08-14$0.16$0.16195,000
2020-08-13$0.17$0.17125,100
2020-08-12$0.17$0.17141,400
2020-08-11$0.17$0.17160,800
2020-08-10$0.17$0.17356,300
2020-08-07$0.18$0.18342,100
2020-08-06$0.18$0.18351,400
2020-08-05$0.18$0.18141,000
2020-08-04$0.18$0.18304,000
2020-08-03$0.17$0.17354,500
2020-07-31$0.18$0.18444,600
2020-07-30$0.19$0.19203,100
2020-07-29$0.19$0.19607,300
2020-07-28$0.20$0.20206,000
2020-07-27$0.19$0.19278,000
2020-07-24$0.20$0.20200,200
2020-07-23$0.20$0.20331,400
2020-07-22$0.21$0.21730,800
2020-07-21$0.22$0.221,238,700
2020-07-20$0.20$0.20693,400
2020-07-17$0.19$0.19169,100
2020-07-16$0.18$0.18244,500
2020-07-15$0.19$0.19418,200
2020-07-14$0.19$0.1947,000
2020-07-13$0.19$0.19467,600
2020-07-10$0.20$0.20482,800
2020-07-09$0.19$0.19515,700
2020-07-08$0.17$0.17250,100
2020-07-07$0.18$0.18276,800
2020-07-06$0.18$0.181,426,500
2020-07-02$0.18$0.18258,200
2020-07-01$0.18$0.181,008,800
2020-06-30$0.16$0.16612,900
2020-06-29$0.15$0.15165,200
2020-06-26$0.15$0.15134,000
2020-06-25$0.15$0.15266,100
2020-06-24$0.15$0.15351,100
2020-06-23$0.14$0.14176,600
2020-06-22$0.14$0.14386,000
2020-06-19$0.14$0.14217,000
2020-06-18$0.15$0.15223,700
2020-06-17$0.15$0.15329,100
2020-06-16$0.15$0.15436,100
2020-06-15$0.15$0.15294,200
2020-06-12$0.15$0.15296,800
2020-06-11$0.16$0.16535,000
2020-06-10$0.15$0.15342,500
2020-06-09$0.16$0.16474,500
2020-06-08$0.16$0.16674,300
2020-06-05$0.16$0.16388,200
2020-06-04$0.16$0.16357,000
2020-06-03$0.15$0.15553,400
2020-06-02$0.17$0.17698,100
2020-06-01$0.16$0.16522,400
2020-05-29$0.16$0.16329,700
2020-05-28$0.17$0.17307,100
2020-05-27$0.16$0.16394,000
2020-05-26$0.17$0.17530,900
2020-05-22$0.18$0.181,458,300
2020-05-21$0.18$0.18764,600
2020-05-20$0.17$0.171,247,700
2020-05-19$0.17$0.171,136,800
2020-05-18$0.19$0.19650,900
2020-05-15$0.20$0.20507,700
2020-05-14$0.19$0.191,146,400
2020-05-13$0.17$0.17659,500
2020-05-12$0.14$0.14283,100
2020-05-11$0.14$0.14271,900
2020-05-08$0.14$0.14770,200
2020-05-07$0.14$0.14697,700
2020-05-06$0.14$0.14954,900
2020-05-05$0.14$0.14831,100
2020-05-04$0.14$0.14825,700
2020-05-01$0.14$0.141,074,400
2020-04-30$0.14$0.14527,700
2020-04-29$0.14$0.141,120,000
2020-04-28$0.16$0.16243,800
2020-04-27$0.16$0.16604,200
2020-04-24$0.15$0.15476,800
2020-04-23$0.15$0.15144,000
2020-04-22$0.15$0.15485,900
2020-04-21$0.16$0.16329,700
2020-04-20$0.17$0.17531,400
2020-04-17$0.17$0.17516,700
2020-04-16$0.17$0.17473,600
2020-04-15$0.16$0.1671,900
2020-04-14$0.17$0.17297,100
2020-04-13$0.16$0.16105,400
2020-04-09$0.17$0.1796,000
2020-04-08$0.17$0.1759,500
2020-04-07$0.17$0.17113,200
2020-04-06$0.17$0.17148,100
2020-04-03$0.17$0.17146,100
2020-04-02$0.17$0.1770,200
2020-04-01$0.15$0.15153,100
2020-03-31$0.17$0.17163,500
2020-03-30$0.18$0.18111,300
2020-03-27$0.17$0.1790,900
2020-03-26$0.18$0.18153,900
2020-03-25$0.16$0.1660,300
2020-03-24$0.16$0.16261,700
2020-03-23$0.12$0.12796,700
2020-03-20$0.16$0.1654,700
2020-03-19$0.18$0.18226,000
2020-03-18$0.14$0.14473,000
2020-03-17$0.18$0.18322,100
2020-03-16$0.16$0.16356,500
2020-03-13$0.19$0.19182,300
2020-03-12$0.18$0.18302,900
2020-03-11$0.19$0.19277,700
2020-03-10$0.20$0.20136,200
2020-03-09$0.19$0.19217,900
2020-03-06$0.20$0.20302,100
2020-03-05$0.21$0.21104,900
2020-03-04$0.21$0.21111,700
2020-03-03$0.21$0.2141,300
2020-03-02$0.23$0.2363,800
2020-02-28$0.20$0.20178,000
2020-02-27$0.21$0.21232,400
2020-02-26$0.21$0.21660,600
2020-02-25$0.21$0.21304,700
2020-02-24$0.22$0.22152,700
2020-02-21$0.21$0.2150,600
2020-02-20$0.22$0.22190,500
2020-02-19$0.23$0.23443,000
2020-02-18$0.21$0.21357,500
2020-02-14$0.21$0.21202,700
2020-02-13$0.23$0.23486,600
2020-02-12$0.23$0.23243,400
2020-02-11$0.24$0.24214,200
2020-02-10$0.25$0.25343,300
2020-02-07$0.23$0.23139,000
2020-02-06$0.22$0.2264,600
2020-02-05$0.22$0.22264,800
2020-02-04$0.23$0.2390,200
2020-02-03$0.22$0.22357,900
2020-01-31$0.23$0.23198,900
2020-01-30$0.26$0.26391,200
2020-01-29$0.27$0.27497,200
2020-01-28$0.22$0.22168,900
2020-01-27$0.22$0.22253,800
2020-01-24$0.21$0.21268,300
2020-01-23$0.24$0.24117,200
2020-01-22$0.24$0.24117,500
2020-01-21$0.23$0.23405,900
2020-01-17$0.26$0.26157,600
2020-01-16$0.28$0.28158,900
2020-01-15$0.29$0.29661,200
2020-01-14$0.25$0.25196,900
2020-01-13$0.24$0.24191,600
2020-01-10$0.22$0.22228,100
2020-01-09$0.22$0.22117,700
2020-01-08$0.21$0.2196,100
2020-01-07$0.21$0.21100,700
2020-01-06$0.22$0.22233,700
2020-01-03$0.21$0.21190,500
2020-01-02$0.22$0.22105,200