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BioLargo, Inc. (BLGO)
OTCMKTS · Delayed Price · Currency is USD
0.155
+0.001 (0.94%)
At close: Apr 28, 2026

BioLargo Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 20260.150.160.150.160.160.91%120,384
Apr 27, 20260.150.160.150.150.151.25%207,860
Apr 24, 20260.140.150.140.150.151.13%151,994
Apr 23, 20260.140.160.140.150.15-0.86%188,962
Apr 22, 20260.150.160.140.150.153.63%245,555
Apr 21, 20260.150.150.150.150.15-2.67%211,226
Apr 20, 20260.140.160.140.150.152.74%373,250
Apr 17, 20260.150.150.140.150.15-64,997
Apr 16, 20260.150.150.140.150.15-1.28%202,954
Apr 15, 20260.150.150.140.150.15-5.86%266,079
Apr 14, 20260.150.160.140.160.169.10%331,669
Apr 13, 20260.140.150.140.140.140.14%130,855
Apr 10, 20260.140.150.140.140.14-3.75%554,654
Apr 9, 20260.150.150.140.150.15-0.07%101,026
Apr 8, 20260.150.150.150.150.15-5.26%479,907
Apr 7, 20260.150.160.150.160.165.27%47,268
Apr 6, 20260.160.160.150.150.150.27%317,112
Apr 2, 20260.160.160.150.150.15-0.33%688,694
Apr 1, 20260.160.160.150.150.15-7.41%556,208
Mar 31, 20260.160.170.160.160.16-1.82%70,305
Mar 30, 20260.160.170.160.170.170.79%54,367
Mar 27, 20260.160.170.160.160.16-0.43%140,906
Mar 26, 20260.170.170.160.160.16-0.06%188,103
Mar 25, 20260.170.170.160.160.16-1.26%62,795
Mar 24, 20260.170.170.160.170.174.12%193,881
Mar 23, 20260.160.170.150.160.16-3.90%198,211
Mar 20, 20260.170.170.160.170.17-1.60%200,880
Mar 19, 20260.170.170.160.170.17-0.47%71,029
Mar 18, 20260.170.170.160.170.17-80,052
Mar 17, 20260.170.170.160.170.170.53%48,699
Mar 16, 20260.170.170.160.170.17-0.24%89,369
Mar 13, 20260.170.170.160.170.170.06%4,614
Mar 12, 20260.170.170.160.170.170.30%23,675
Mar 11, 20260.170.170.160.170.172.49%175,073
Mar 10, 20260.170.170.160.160.16-1.44%208,085
Mar 9, 20260.160.170.160.170.170.66%50,651
Mar 6, 20260.170.170.170.170.17-2.01%96,023
Mar 5, 20260.170.180.170.170.17-5.62%197,505
Mar 4, 20260.180.180.170.180.181.35%82,177
Mar 3, 20260.180.180.180.180.18-1.23%148,024
Mar 2, 20260.170.180.170.180.180.50%283,033
Feb 27, 20260.180.180.170.180.18-0.83%123,102
Feb 26, 20260.170.180.170.180.180.11%452,977
Feb 25, 20260.180.180.170.180.184.53%145,859
Feb 24, 20260.170.170.170.170.173.24%224,915
Feb 23, 20260.170.170.170.170.17-1.77%137,524
Feb 20, 20260.170.170.160.170.17-2.97%422,430
Feb 19, 20260.170.180.170.170.172.76%106,677
Feb 18, 20260.160.180.160.170.173.09%373,176
Feb 17, 20260.160.170.160.170.17-1.49%341,530
Feb 13, 20260.170.180.170.170.17-1.47%227,845
Feb 12, 20260.170.170.170.170.170.12%288,563
Feb 11, 20260.170.180.160.170.17-2.86%365,184
Feb 10, 20260.180.180.170.170.17-2.40%333,279
Feb 9, 20260.170.180.170.180.181.76%515,517
Feb 6, 20260.170.180.170.180.180.92%448,382
Feb 5, 20260.180.180.170.170.172.35%696,929
Feb 4, 20260.180.180.170.170.17-2.85%123,295
Feb 3, 20260.170.180.170.180.18-1.96%89,285
Feb 2, 20260.170.180.170.180.18-0.06%115,127
Jan 30, 20260.170.180.170.180.18-0.22%175,407
Jan 29, 20260.180.180.170.180.18-0.17%538,147
Jan 28, 20260.180.180.170.180.181.53%348,561
Jan 27, 20260.180.190.170.180.18-3.49%414,242
Jan 26, 20260.190.190.180.180.18-0.86%448,539
Jan 23, 20260.190.190.180.190.19-1.28%309,074
Jan 22, 20260.190.190.180.190.192.85%223,437
Jan 21, 20260.190.190.180.180.18-1.25%265,236
Jan 20, 20260.190.190.180.180.18-2.59%384,272
Jan 16, 20260.180.190.180.190.194.64%636,813
Jan 15, 20260.180.180.180.180.18-1.63%389,776
Jan 14, 20260.190.190.180.180.18-0.54%110,809
Jan 13, 20260.190.190.180.190.18-2.48%328,237
Jan 12, 20260.180.190.180.190.19-2.62%509,545
Jan 9, 20260.190.190.190.190.191.46%25,638
Jan 8, 20260.200.200.190.190.19-1.69%135,169
Jan 7, 20260.190.200.190.200.204.05%739,109
Jan 6, 20260.190.190.180.190.191.46%101,373
Jan 5, 20260.180.190.180.190.19-1.49%425,054
Jan 2, 20260.190.190.180.190.191.90%237,029
Dec 31, 20250.180.190.180.180.182.73%252,181
Dec 30, 20250.180.180.180.180.181.64%164,167
Dec 29, 20250.180.180.180.180.180.74%264,815
Dec 26, 20250.180.180.170.180.18-3.42%595,443
Dec 24, 20250.180.180.180.180.180.28%221,646
Dec 23, 20250.180.180.180.180.18-0.60%229,918
Dec 22, 20250.180.180.180.180.180.11%215,760
Dec 19, 20250.180.180.180.180.18-0.87%456,390
Dec 18, 20250.180.180.180.180.18-0.11%149,779
Dec 17, 20250.180.180.180.180.182.00%693,950
Dec 16, 20250.180.180.180.180.18-2.44%121,270
Dec 15, 20250.180.190.170.180.185.37%712,394
Dec 12, 20250.180.180.170.180.18-2.72%478,858
Dec 11, 20250.180.190.180.180.180.73%306,788
Dec 10, 20250.180.180.180.180.18-0.72%309,787
Dec 9, 20250.180.180.180.180.181.12%150,548
Dec 8, 20250.190.190.180.180.18-6.27%372,667
Dec 5, 20250.190.190.180.190.19-223,174
Dec 4, 20250.190.190.190.190.19-1.09%154,686
Dec 3, 20250.190.200.190.190.19-0.36%424,949