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.

View year

Historical Stock Price — 2013

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2013-12-31$0.25$0.250
2013-12-30$0.25$0.2514,600
2013-12-27$0.25$0.250
2013-12-26$0.25$0.251,600
2013-12-24$0.25$0.25100
2013-12-23$0.24$0.2410,000
2013-12-20$0.18$0.1824,400
2013-12-19$0.23$0.230
2013-12-18$0.23$0.235,400
2013-12-17$0.24$0.2414,500
2013-12-16$0.15$0.1565,900
2013-12-13$0.19$0.190
2013-12-12$0.19$0.195,900
2013-12-11$0.19$0.190
2013-12-10$0.19$0.190
2013-12-09$0.19$0.190
2013-12-06$0.19$0.190
2013-12-05$0.19$0.190
2013-12-04$0.19$0.190
2013-12-03$0.19$0.1924,200
2013-12-02$0.15$0.1530,000
2013-11-29$0.18$0.182,500
2013-11-27$0.19$0.1942,200
2013-11-26$0.15$0.150
2013-11-25$0.15$0.154,300
2013-11-22$0.20$0.200
2013-11-21$0.20$0.200
2013-11-20$0.20$0.20900
2013-11-19$0.18$0.1817,200
2013-11-18$0.17$0.1740,200
2013-11-15$0.23$0.2334,300
2013-11-14$0.17$0.1772,000
2013-11-13$0.15$0.1511,100
2013-11-12$0.22$0.2213,000
2013-11-11$0.15$0.1523,000
2013-11-08$0.15$0.1510,000
2013-11-07$0.20$0.2012,500
2013-11-06$0.20$0.206,500
2013-11-05$0.18$0.18200
2013-11-04$0.20$0.20105,000
2013-11-01$0.25$0.250
2013-10-31$0.25$0.25200
2013-10-30$0.25$0.250
2013-10-29$0.25$0.257,500
2013-10-28$0.26$0.2618,900
2013-10-25$0.24$0.2417,600
2013-10-24$0.24$0.2443,400
2013-10-23$0.15$0.1525,500
2013-10-22$0.24$0.240
2013-10-21$0.24$0.240
2013-10-18$0.24$0.240
2013-10-17$0.24$0.240
2013-10-16$0.24$0.240
2013-10-15$0.24$0.2435,100
2013-10-14$0.27$0.270
2013-10-11$0.27$0.271,900
2013-10-10$0.25$0.2515,000
2013-10-09$0.27$0.270
2013-10-08$0.27$0.270
2013-10-07$0.27$0.270
2013-10-04$0.27$0.270
2013-10-03$0.27$0.270
2013-10-02$0.27$0.271,000
2013-10-01$0.26$0.2617,500
2013-09-30$0.28$0.280
2013-09-27$0.28$0.280
2013-09-26$0.28$0.280
2013-09-25$0.28$0.280
2013-09-24$0.28$0.280
2013-09-23$0.28$0.280
2013-09-20$0.28$0.2829,000
2013-09-19$0.28$0.282,100
2013-09-18$0.28$0.280
2013-09-17$0.28$0.281,000
2013-09-16$0.28$0.280
2013-09-13$0.28$0.28700
2013-09-12$0.30$0.300
2013-09-11$0.30$0.300
2013-09-10$0.30$0.30100
2013-09-09$0.39$0.39100
2013-09-06$0.23$0.230
2013-09-05$0.23$0.230
2013-09-04$0.23$0.230
2013-09-03$0.23$0.230
2013-08-30$0.23$0.230
2013-08-29$0.23$0.230
2013-08-28$0.23$0.230
2013-08-27$0.23$0.230
2013-08-26$0.23$0.230
2013-08-23$0.23$0.230
2013-08-22$0.23$0.230
2013-08-21$0.23$0.230
2013-08-20$0.23$0.230
2013-08-19$0.23$0.232,500
2013-08-16$0.27$0.270
2013-08-15$0.27$0.270
2013-08-14$0.27$0.270
2013-08-13$0.27$0.270
2013-08-12$0.27$0.272,100
2013-08-09$0.27$0.27500
2013-08-08$0.25$0.251,200
2013-08-07$0.25$0.250
2013-08-06$0.25$0.250
2013-08-05$0.25$0.2526,200
2013-08-02$0.25$0.2556,300
2013-08-01$0.25$0.251,200
2013-07-31$0.23$0.230
2013-07-30$0.23$0.230
2013-07-29$0.23$0.238,400
2013-07-26$0.27$0.270
2013-07-25$0.27$0.270
2013-07-24$0.27$0.27500
2013-07-23$0.27$0.271,900
2013-07-22$0.22$0.225,000
2013-07-19$0.27$0.2758,400
2013-07-18$0.25$0.2520,000
2013-07-17$0.25$0.25112,500
2013-07-16$0.30$0.300
2013-07-15$0.30$0.300
2013-07-12$0.30$0.300
2013-07-11$0.30$0.30800
2013-07-10$0.27$0.270
2013-07-09$0.27$0.27200
2013-07-08$0.28$0.280
2013-07-05$0.28$0.280
2013-07-03$0.28$0.280
2013-07-02$0.28$0.280
2013-07-01$0.28$0.280
2013-06-28$0.28$0.282,500
2013-06-27$0.27$0.270
2013-06-26$0.27$0.271,000
2013-06-25$0.26$0.260
2013-06-24$0.26$0.260
2013-06-21$0.26$0.262,500
2013-06-20$0.28$0.280
2013-06-19$0.28$0.280
2013-06-18$0.28$0.280
2013-06-17$0.28$0.286,500
2013-06-14$0.28$0.2810,700
2013-06-13$0.28$0.281,600
2013-06-12$0.28$0.2810,400
2013-06-11$0.35$0.35500
2013-06-10$0.37$0.370
2013-06-07$0.37$0.370
2013-06-06$0.37$0.371,500
2013-06-05$0.39$0.390
2013-06-04$0.39$0.390
2013-06-03$0.39$0.39500
2013-05-31$0.35$0.3533,000
2013-05-30$0.25$0.250
2013-05-29$0.25$0.250
2013-05-28$0.25$0.250
2013-05-24$0.25$0.25300
2013-05-23$0.27$0.270
2013-05-22$0.27$0.2740,000
2013-05-21$0.25$0.2510,000
2013-05-20$0.25$0.2530,000
2013-05-17$0.26$0.260
2013-05-16$0.26$0.261,500
2013-05-15$0.27$0.270
2013-05-14$0.27$0.27600
2013-05-13$0.27$0.270
2013-05-10$0.27$0.2712,200
2013-05-09$0.27$0.2723,300
2013-05-08$0.27$0.270
2013-05-07$0.27$0.27300
2013-05-06$0.27$0.27400
2013-05-03$0.29$0.290
2013-05-02$0.29$0.296,400
2013-05-01$0.28$0.280
2013-04-30$0.28$0.280
2013-04-29$0.28$0.280
2013-04-26$0.28$0.285,000
2013-04-25$0.28$0.2828,000
2013-04-24$0.27$0.271,300
2013-04-23$0.28$0.280
2013-04-22$0.28$0.282,500
2013-04-19$0.28$0.286,500
2013-04-18$0.31$0.311,900
2013-04-17$0.28$0.282,000
2013-04-16$0.28$0.28400
2013-04-15$0.31$0.3112,800
2013-04-12$0.31$0.310
2013-04-11$0.31$0.310
2013-04-10$0.31$0.31800
2013-04-09$0.28$0.283,300
2013-04-08$0.33$0.332,400
2013-04-05$0.33$0.335,100
2013-04-04$0.29$0.290
2013-04-03$0.29$0.291,000
2013-04-02$0.29$0.290
2013-04-01$0.29$0.290
2013-03-28$0.29$0.294,300
2013-03-27$0.29$0.29600
2013-03-26$0.29$0.295,100
2013-03-25$0.30$0.300
2013-03-22$0.30$0.300
2013-03-21$0.30$0.3037,800
2013-03-20$0.33$0.330
2013-03-19$0.33$0.330
2013-03-18$0.33$0.33100
2013-03-15$0.27$0.2764,900
2013-03-14$0.25$0.252,000
2013-03-13$0.30$0.300
2013-03-12$0.30$0.30100
2013-03-11$0.26$0.265,400
2013-03-08$0.28$0.289,300
2013-03-07$0.28$0.2861,500
2013-03-06$0.27$0.270
2013-03-05$0.27$0.275,500
2013-03-04$0.27$0.27500
2013-03-01$0.27$0.27500
2013-02-28$0.25$0.2519,600
2013-02-27$0.28$0.280
2013-02-26$0.28$0.28200
2013-02-25$0.25$0.2525,000
2013-02-22$0.25$0.25400
2013-02-21$0.28$0.280
2013-02-20$0.28$0.28100
2013-02-19$0.25$0.252,000
2013-02-15$0.28$0.28300
2013-02-14$0.28$0.280
2013-02-13$0.28$0.280
2013-02-12$0.28$0.283,000
2013-02-11$0.28$0.289,000
2013-02-08$0.28$0.280
2013-02-07$0.28$0.2810,000
2013-02-06$0.28$0.280
2013-02-05$0.28$0.287,800
2013-02-04$0.28$0.282,600
2013-02-01$0.28$0.283,000
2013-01-31$0.28$0.280
2013-01-30$0.28$0.280
2013-01-29$0.28$0.2874,700
2013-01-28$0.28$0.28100
2013-01-25$0.28$0.280
2013-01-24$0.28$0.280
2013-01-23$0.28$0.280
2013-01-22$0.28$0.280
2013-01-18$0.28$0.280
2013-01-17$0.28$0.285,000
2013-01-16$0.28$0.280
2013-01-15$0.28$0.280
2013-01-14$0.28$0.2844,800
2013-01-11$0.30$0.300
2013-01-10$0.30$0.3015,200
2013-01-09$0.28$0.28200
2013-01-08$0.30$0.3026,400
2013-01-07$0.25$0.250
2013-01-04$0.25$0.255,000
2013-01-03$0.24$0.240
2013-01-02$0.24$0.240