BioLargo, Inc. (BLGO)
OTCMKTS · Delayed Price · Currency is USD
0.1200
-0.0100 (-7.69%)
May 18, 2026, 3:54 PM EST
BioLargo Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| May 18, 2026 | 0.13 | 0.13 | 0.11 | 0.12 | 0.12 | -9.50% | 675,118 |
| May 15, 2026 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | -0.38% | 147,255 |
| May 14, 2026 | 0.13 | 0.14 | 0.13 | 0.13 | 0.13 | -1.26% | 239,430 |
| May 13, 2026 | 0.14 | 0.14 | 0.13 | 0.13 | 0.13 | -3.71% | 680,742 |
| May 12, 2026 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | - | 254,358 |
| May 11, 2026 | 0.15 | 0.15 | 0.13 | 0.14 | 0.14 | -6.67% | 1,714,986 |
| May 8, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | -3.60% | 199,051 |
| May 7, 2026 | 0.16 | 0.16 | 0.15 | 0.16 | 0.16 | 0.58% | 182,515 |
| May 6, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | -0.58% | 420,931 |
| May 5, 2026 | 0.16 | 0.16 | 0.15 | 0.16 | 0.16 | -0.83% | 151,715 |
| May 4, 2026 | 0.15 | 0.16 | 0.15 | 0.16 | 0.16 | 2.75% | 406,267 |
| May 1, 2026 | 0.15 | 0.16 | 0.15 | 0.15 | 0.15 | 1.06% | 88,799 |
| Apr 30, 2026 | 0.15 | 0.16 | 0.15 | 0.15 | 0.15 | 1.55% | 593,015 |
| Apr 29, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | -4.00% | 108,560 |
| Apr 28, 2026 | 0.15 | 0.16 | 0.15 | 0.16 | 0.16 | 0.91% | 120,384 |
| Apr 27, 2026 | 0.15 | 0.16 | 0.15 | 0.15 | 0.15 | 1.25% | 207,860 |
| Apr 24, 2026 | 0.14 | 0.15 | 0.14 | 0.15 | 0.15 | 1.13% | 151,994 |
| Apr 23, 2026 | 0.14 | 0.16 | 0.14 | 0.15 | 0.15 | -0.86% | 188,962 |
| Apr 22, 2026 | 0.15 | 0.16 | 0.14 | 0.15 | 0.15 | 3.63% | 245,555 |
| Apr 21, 2026 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | -2.67% | 211,226 |
| Apr 20, 2026 | 0.14 | 0.16 | 0.14 | 0.15 | 0.15 | 2.74% | 373,250 |
| Apr 17, 2026 | 0.15 | 0.15 | 0.14 | 0.15 | 0.15 | - | 64,997 |
| Apr 16, 2026 | 0.15 | 0.15 | 0.14 | 0.15 | 0.15 | -1.28% | 202,954 |
| Apr 15, 2026 | 0.15 | 0.15 | 0.14 | 0.15 | 0.15 | -5.86% | 266,079 |
| Apr 14, 2026 | 0.15 | 0.16 | 0.14 | 0.16 | 0.16 | 9.10% | 331,669 |
| Apr 13, 2026 | 0.14 | 0.15 | 0.14 | 0.14 | 0.14 | 0.14% | 130,855 |
| Apr 10, 2026 | 0.14 | 0.15 | 0.14 | 0.14 | 0.14 | -3.75% | 554,654 |
| Apr 9, 2026 | 0.15 | 0.15 | 0.14 | 0.15 | 0.15 | -0.07% | 101,026 |
| Apr 8, 2026 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | -5.26% | 479,907 |
| Apr 7, 2026 | 0.15 | 0.16 | 0.15 | 0.16 | 0.16 | 5.27% | 47,268 |
| Apr 6, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | 0.27% | 317,112 |
| Apr 2, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | -0.33% | 688,694 |
| Apr 1, 2026 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | -7.41% | 556,208 |
| Mar 31, 2026 | 0.16 | 0.17 | 0.16 | 0.16 | 0.16 | -1.82% | 70,305 |
| Mar 30, 2026 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 0.79% | 54,367 |
| Mar 27, 2026 | 0.16 | 0.17 | 0.16 | 0.16 | 0.16 | -0.43% | 140,906 |
| Mar 26, 2026 | 0.17 | 0.17 | 0.16 | 0.16 | 0.16 | -0.06% | 188,103 |
| Mar 25, 2026 | 0.17 | 0.17 | 0.16 | 0.16 | 0.16 | -1.26% | 62,795 |
| Mar 24, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 4.12% | 193,881 |
| Mar 23, 2026 | 0.16 | 0.17 | 0.15 | 0.16 | 0.16 | -3.90% | 198,211 |
| Mar 20, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | -1.60% | 200,880 |
| Mar 19, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | -0.47% | 71,029 |
| Mar 18, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | - | 80,052 |
| Mar 17, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 0.53% | 48,699 |
| Mar 16, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | -0.24% | 89,369 |
| Mar 13, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 0.06% | 4,614 |
| Mar 12, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 0.30% | 23,675 |
| Mar 11, 2026 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 2.49% | 175,073 |
| Mar 10, 2026 | 0.17 | 0.17 | 0.16 | 0.16 | 0.16 | -1.44% | 208,085 |
| Mar 9, 2026 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 0.66% | 50,651 |