BioLargo, Inc. (BLGO)
OTCMKTS · Delayed Price · Currency is USD
0.1818
-0.0016 (-0.88%)
At close: Dec 19, 2025
BioLargo Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 19, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | -0.87% | 456,390 |
| Dec 18, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | -0.11% | 149,779 |
| Dec 17, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 2.00% | 693,950 |
| Dec 16, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | -2.44% | 121,270 |
| Dec 15, 2025 | 0.18 | 0.19 | 0.17 | 0.18 | 0.18 | 5.37% | 712,394 |
| Dec 12, 2025 | 0.18 | 0.18 | 0.17 | 0.18 | 0.18 | -2.72% | 478,858 |
| Dec 11, 2025 | 0.18 | 0.19 | 0.18 | 0.18 | 0.18 | 0.73% | 306,788 |
| Dec 10, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | -0.72% | 309,787 |
| Dec 9, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 1.12% | 150,548 |
| Dec 8, 2025 | 0.19 | 0.19 | 0.18 | 0.18 | 0.18 | -6.27% | 372,667 |
| Dec 5, 2025 | 0.19 | 0.19 | 0.18 | 0.19 | 0.19 | - | 223,174 |
| Dec 4, 2025 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | -1.09% | 154,686 |
| Dec 3, 2025 | 0.19 | 0.20 | 0.19 | 0.19 | 0.19 | -0.36% | 424,949 |
| Dec 2, 2025 | 0.19 | 0.19 | 0.18 | 0.19 | 0.19 | 4.05% | 317,171 |
| Dec 1, 2025 | 0.19 | 0.19 | 0.18 | 0.19 | 0.19 | 1.70% | 349,401 |
| Nov 28, 2025 | 0.18 | 0.19 | 0.17 | 0.18 | 0.18 | 3.94% | 186,188 |
| Nov 26, 2025 | 0.19 | 0.19 | 0.18 | 0.18 | 0.18 | -6.66% | 688,049 |
| Nov 25, 2025 | 0.16 | 0.19 | 0.16 | 0.19 | 0.19 | 14.17% | 1,046,447 |
| Nov 24, 2025 | 0.15 | 0.16 | 0.15 | 0.16 | 0.16 | 8.37% | 568,071 |
| Nov 21, 2025 | 0.15 | 0.16 | 0.15 | 0.15 | 0.15 | 1.13% | 775,758 |
| Nov 20, 2025 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | -2.60% | 218,039 |
| Nov 19, 2025 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | 1.32% | 937,165 |
| Nov 18, 2025 | 0.16 | 0.17 | 0.15 | 0.15 | 0.15 | -2.94% | 1,356,407 |
| Nov 17, 2025 | 0.16 | 0.16 | 0.15 | 0.16 | 0.16 | 0.06% | 546,302 |
| Nov 14, 2025 | 0.17 | 0.17 | 0.15 | 0.16 | 0.16 | -7.89% | 540,247 |
| Nov 13, 2025 | 0.16 | 0.18 | 0.16 | 0.17 | 0.17 | 0.53% | 317,393 |
| Nov 12, 2025 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | -0.24% | 94,289 |
| Nov 11, 2025 | 0.18 | 0.18 | 0.16 | 0.17 | 0.17 | -3.20% | 200,333 |
| Nov 10, 2025 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | -4.00% | 425,035 |
| Nov 7, 2025 | 0.17 | 0.19 | 0.16 | 0.18 | 0.18 | 11.16% | 1,333,814 |
| Nov 6, 2025 | 0.16 | 0.17 | 0.16 | 0.16 | 0.16 | 2.56% | 211,401 |
| Nov 5, 2025 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.76% | 176,692 |
| Nov 4, 2025 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.44% | 83,897 |
| Nov 3, 2025 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 1.02% | 312,200 |
| Oct 31, 2025 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | -3.46% | 172,178 |
| Oct 30, 2025 | 0.16 | 0.17 | 0.16 | 0.16 | 0.16 | -1.82% | 227,642 |
| Oct 29, 2025 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | -0.60% | 450,121 |
| Oct 28, 2025 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 0.36% | 714,321 |
| Oct 27, 2025 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 0.30% | 240,225 |
| Oct 24, 2025 | 0.17 | 0.17 | 0.16 | 0.16 | 0.16 | 0.30% | 310,752 |
| Oct 23, 2025 | 0.17 | 0.17 | 0.16 | 0.16 | 0.16 | -1.38% | 94,554 |
| Oct 22, 2025 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | -4.31% | 206,546 |
| Oct 21, 2025 | 0.17 | 0.18 | 0.17 | 0.17 | 0.17 | -7.14% | 468,345 |
| Oct 20, 2025 | 0.17 | 0.19 | 0.16 | 0.19 | 0.19 | 13.70% | 1,368,053 |
| Oct 17, 2025 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 5.43% | 632,923 |
| Oct 16, 2025 | 0.16 | 0.17 | 0.16 | 0.16 | 0.16 | -6.51% | 429,628 |
| Oct 15, 2025 | 0.17 | 0.17 | 0.16 | 0.17 | 0.17 | 0.12% | 404,027 |
| Oct 14, 2025 | 0.17 | 0.17 | 0.15 | 0.17 | 0.17 | -0.54% | 550,179 |
| Oct 13, 2025 | 0.16 | 0.17 | 0.16 | 0.17 | 0.17 | 5.13% | 381,291 |
| Oct 10, 2025 | 0.17 | 0.17 | 0.15 | 0.16 | 0.16 | -3.96% | 798,256 |