NASDAQ : ALEC
Alector, Inc. — Price history
Healthcare · Biotechnology · United States
Last price 2.21 USD (Oct 30, 2026, 4:00 PM EDT) · Market cap 327.65M
Overview · Financial statements · Key statistics · Dividends · Company profile · Price history · Reports
Price history
Alector, Inc. (ALEC) closed at 2.15 USD on 2026-11-02. Daily open, high, low, close and volume for recent sessions:
| Date | Open | High | Low | Close | Volume | Change |
|---|---|---|---|---|---|---|
| 2026-11-02 | 2.2 | 2.23 | 2.09 | 2.15 | 949,784 | -2.71% |
| 2026-10-30 | 2.2 | 2.25 | 2.09 | 2.21 | 1,111,241 | -1.34% |
| 2026-10-29 | 2.25 | 2.32 | 2.2 | 2.24 | 1,460,703 | -0.44% |
| 2026-10-28 | 2.08 | 2.26 | 2.05 | 2.25 | 1,910,276 | +7.14% |
| 2026-10-27 | 1.82 | 2.12 | 1.82 | 2.1 | 4,569,826 | +14.75% |
| 2026-10-26 | 1.85 | 1.94 | 1.79 | 1.83 | 2,659,495 | +0.00% |
| 2026-10-23 | 1.81 | 1.84 | 1.72 | 1.83 | 2,035,035 | +0.00% |
| 2026-10-22 | 1.86 | 1.88 | 1.74 | 1.83 | 1,480,205 | -2.14% |
| 2026-10-21 | 1.97 | 2 | 1.85 | 1.87 | 1,141,620 | -5.08% |
| 2026-10-20 | 1.96 | 2.04 | 1.915 | 1.97 | 2,021,359 | +1.03% |
| 2026-10-19 | 1.85 | 1.99 | 1.765 | 1.95 | 2,367,825 | +5.98% |
| 2026-10-16 | 2.18 | 2.18 | 1.79 | 1.84 | 5,149,342 | -3.66% |
| 2026-10-15 | 1.92 | 1.95 | 1.85 | 1.91 | 1,628,437 | +1.60% |
| 2026-10-14 | 1.84 | 1.919 | 1.82 | 1.88 | 2,893,454 | +0.53% |
| 2026-10-13 | 2.07 | 2.08 | 1.775 | 1.87 | 2,814,251 | -10.10% |
| 2026-10-12 | 2.08 | 2.14 | 2.02 | 2.08 | 1,623,335 | +0.00% |
| 2026-10-09 | 2.01 | 2.145 | 2 | 2.08 | 3,077,139 | +2.97% |
| 2026-10-08 | 1.9 | 2.06 | 1.88 | 2.02 | 6,437,560 | +5.21% |
| 2026-10-07 | 1.78 | 1.92 | 1.73 | 1.92 | 3,941,548 | +6.08% |
| 2026-10-06 | 2.08 | 2.23 | 1.75 | 1.81 | 10,074,400 | -9.05% |
| 2026-10-05 | 2.725 | 2.73 | 1.96 | 1.99 | 88,926,843 | +9.94% |
| 2026-10-02 | 1.89 | 1.965 | 1.8 | 1.81 | 1,165,270 | -2.69% |
| 2026-10-01 | 1.82 | 1.91 | 1.805 | 1.86 | 774,391 | +0.54% |
| 2026-09-30 | 1.88 | 1.949 | 1.83 | 1.85 | 786,316 | -1.07% |
| 2026-09-29 | 1.95 | 1.95 | 1.86 | 1.87 | 953,077 | -2.60% |
| 2026-09-28 | 1.92 | 1.955 | 1.86 | 1.92 | 713,340 | -1.54% |
| 2026-09-25 | 1.92 | 2.05 | 1.9 | 1.95 | 1,024,463 | +1.56% |
| 2026-09-24 | 2.02 | 2.05 | 1.905 | 1.92 | 849,210 | -4.95% |
| 2026-09-23 | 2 | 2.02 | 1.95 | 2.02 | 1,161,908 | +0.50% |
| 2026-09-22 | 1.97 | 2.035 | 1.93 | 2.01 | 1,463,666 | +4.15% |
| 2026-09-21 | 1.9 | 1.945 | 1.85 | 1.93 | 877,250 | +1.05% |
| 2026-09-18 | 1.85 | 1.91 | 1.79 | 1.91 | 1,999,437 | +3.24% |
| 2026-09-17 | 1.96 | 1.97 | 1.83 | 1.85 | 931,233 | -3.90% |
| 2026-09-16 | 2.06 | 2.06 | 1.91 | 1.925 | 622,260 | -5.41% |
| 2026-09-15 | 2.19 | 2.209 | 1.985 | 2.035 | 715,903 | -7.92% |
| 2026-09-14 | 2.15 | 2.225 | 2.095 | 2.21 | 2,458,510 | +3.27% |
| 2026-09-11 | 2.17 | 2.22 | 2.02 | 2.14 | 4,699,039 | +0.00% |
| 2026-09-10 | 2.22 | 2.24 | 2 | 2.14 | 3,779,886 | -5.73% |
| 2026-09-09 | 2.47 | 2.47 | 2.25 | 2.27 | 505,604 | -8.10% |
| 2026-09-08 | 2.38 | 2.61 | 2.33 | 2.47 | 915,263 | +0.41% |
| 2026-09-04 | 2.52 | 2.575 | 2.44 | 2.46 | 496,343 | -1.99% |
| 2026-09-03 | 2.7 | 2.75 | 2.435 | 2.51 | 2,569,935 | -7.72% |
| 2026-09-02 | 2.4 | 2.76 | 2.4 | 2.72 | 1,664,224 | +13.33% |
| 2026-09-01 | 2.24 | 2.486 | 2.22 | 2.4 | 477,404 | +6.19% |
| 2026-08-31 | 2.32 | 2.35 | 2.23 | 2.26 | 609,231 | -3.42% |
| 2026-08-28 | 2.39 | 2.44 | 2.315 | 2.34 | 542,221 | -2.09% |
| 2026-08-27 | 2.44 | 2.5 | 2.39 | 2.39 | 706,964 | -2.85% |
| 2026-08-26 | 2.38 | 2.515 | 2.26 | 2.46 | 996,494 | +4.24% |
| 2026-08-25 | 2.32 | 2.455 | 2.28 | 2.36 | 558,276 | +2.61% |
| 2026-08-24 | 2.36 | 2.465 | 2.29 | 2.3 | 738,144 | -2.54% |
| 2026-08-21 | 2.28 | 2.37 | 2.2 | 2.36 | 728,094 | +4.42% |
| 2026-08-20 | 2.4 | 2.46 | 2.185 | 2.26 | 662,589 | -7.00% |
| 2026-08-19 | 2.245 | 2.525 | 2.155 | 2.43 | 3,755,621 | +9.95% |
| 2026-08-18 | 2.04 | 2.3 | 2.04 | 2.21 | 4,774,016 | +7.80% |
| 2026-08-17 | 1.91 | 2.09 | 1.9 | 2.05 | 913,807 | +4.59% |
| 2026-08-14 | 2.04 | 2.07 | 1.945 | 1.96 | 649,021 | -3.92% |
| 2026-08-13 | 2.15 | 2.15 | 1.98 | 2.04 | 1,294,760 | -5.12% |
| 2026-08-12 | 2.06 | 2.175 | 2.02 | 2.15 | 786,196 | +2.87% |
| 2026-08-11 | 1.68 | 2.129 | 1.65 | 2.09 | 5,543,326 | +23.67% |
| 2026-08-10 | 1.77 | 1.78 | 1.6 | 1.69 | 805,594 | -5.06% |
| 2026-08-07 | 1.84 | 2 | 1.74 | 1.78 | 1,247,033 | -2.73% |
| 2026-08-06 | 1.49 | 2.035 | 1.482 | 1.83 | 5,704,449 | +22.82% |
| 2026-08-05 | 1.56 | 1.57 | 1.46 | 1.49 | 392,306 | -3.25% |
| 2026-08-04 | 1.51 | 1.61 | 1.51 | 1.54 | 407,157 | +1.99% |
| 2026-08-03 | 1.51 | 1.54 | 1.455 | 1.51 | 359,922 | +0.00% |
| 2026-07-31 | 1.62 | 1.62 | 1.485 | 1.51 | 548,294 | -6.79% |
| 2026-07-30 | 1.52 | 1.67 | 1.51 | 1.62 | 453,153 | +6.58% |
| 2026-07-29 | 1.51 | 1.565 | 1.49 | 1.52 | 307,858 | +0.00% |
| 2026-07-28 | 1.51 | 1.54 | 1.475 | 1.52 | 342,803 | +0.66% |
| 2026-07-27 | 1.49 | 1.575 | 1.47 | 1.51 | 229,001 | +2.03% |
| 2026-07-24 | 1.5 | 1.505 | 1.455 | 1.48 | 325,295 | -0.67% |
| 2026-07-23 | 1.48 | 1.545 | 1.47 | 1.49 | 607,111 | -2.61% |
| 2026-07-22 | 1.53 | 1.535 | 1.49 | 1.53 | 333,441 | -0.65% |
| 2026-07-21 | 1.42 | 1.55 | 1.42 | 1.54 | 499,661 | +7.69% |
| 2026-07-20 | 1.49 | 1.5 | 1.415 | 1.43 | 463,910 | -4.67% |
| 2026-07-17 | 1.43 | 1.519 | 1.42 | 1.5 | 500,156 | +2.04% |
| 2026-07-16 | 1.4 | 1.5 | 1.39 | 1.47 | 713,579 | -2.00% |
| 2026-07-15 | 1.39 | 1.53 | 1.37 | 1.5 | 719,640 | +7.91% |
| 2026-07-14 | 1.53 | 1.53 | 1.37 | 1.39 | 529,650 | -7.95% |
| 2026-07-13 | 1.6 | 1.61 | 1.495 | 1.51 | 775,930 | -6.21% |
| 2026-07-10 | 1.63 | 1.66 | 1.475 | 1.61 | 597,218 | -1.53% |
| 2026-07-09 | 1.83 | 1.86 | 1.6 | 1.635 | 589,285 | -10.66% |
| 2026-07-08 | 1.9 | 1.94 | 1.805 | 1.83 | 643,891 | -5.18% |
| 2026-07-07 | 1.97 | 1.97 | 1.855 | 1.93 | 416,164 | -0.52% |
| 2026-07-06 | 2.06 | 2.065 | 1.925 | 1.94 | 588,496 | -5.83% |
| 2026-07-02 | 2.02 | 2.145 | 1.995 | 2.06 | 394,059 | +2.49% |
| 2026-07-01 | 1.99 | 2.07 | 1.955 | 2.01 | 368,534 | +0.00% |
| 2026-06-30 | 2.1 | 2.135 | 1.98 | 2.01 | 609,377 | -3.37% |
| 2026-06-29 | 1.88 | 2.09 | 1.77 | 2.08 | 544,170 | +11.83% |
| 2026-06-26 | 1.84 | 1.955 | 1.84 | 1.86 | 3,845,497 | +0.54% |
| 2026-06-25 | 1.79 | 2.02 | 1.745 | 1.85 | 2,828,249 | +3.35% |
| 2026-06-24 | 1.78 | 1.87 | 1.78 | 1.79 | 510,426 | -2.19% |
| 2026-06-23 | 1.75 | 1.87 | 1.72 | 1.83 | 854,070 | +2.81% |
| 2026-06-22 | 1.76 | 1.92 | 1.715 | 1.78 | 1,592,996 | +1.71% |
| 2026-06-18 | 1.58 | 1.77 | 1.565 | 1.75 | 1,108,447 | +12.18% |
| 2026-06-17 | 1.55 | 1.6 | 1.53 | 1.56 | 496,015 | +1.30% |
| 2026-06-16 | 1.47 | 1.55 | 1.41 | 1.54 | 712,030 | +4.05% |
| 2026-06-15 | 1.56 | 1.595 | 1.46 | 1.48 | 629,572 | -3.27% |
| 2026-06-12 | 1.58 | 1.605 | 1.53 | 1.53 | 263,831 | -2.55% |
| 2026-06-11 | 1.52 | 1.74 | 1.485 | 1.57 | 428,244 | +3.29% |
| 2026-06-10 | 1.69 | 1.69 | 1.485 | 1.52 | 429,021 | -6.75% |
| 2026-06-09 | 1.64 | 1.68 | 1.585 | 1.63 | 439,473 | -0.61% |
| 2026-06-08 | 1.65 | 1.665 | 1.57 | 1.64 | 667,834 | +0.31% |
| 2026-06-05 | 1.81 | 1.84 | 1.625 | 1.635 | 364,367 | -9.67% |
| 2026-06-04 | 1.79 | 1.915 | 1.79 | 1.81 | 449,441 | +1.97% |
| 2026-06-03 | 1.94 | 1.94 | 1.705 | 1.775 | 1,691,685 | -8.97% |
| 2026-06-02 | 2.04 | 2.07 | 1.92 | 1.95 | 1,561,015 | -5.80% |
| 2026-06-01 | 2.16 | 2.16 | 2.07 | 2.07 | 705,789 | -4.17% |
| 2026-05-29 | 2.15 | 2.25 | 2.05 | 2.16 | 993,192 | +0.47% |
| 2026-05-28 | 2.21 | 2.24 | 2.1 | 2.15 | 1,300,473 | -2.71% |
| 2026-05-27 | 2.2 | 2.28 | 2.17 | 2.21 | 462,444 | +0.91% |
| 2026-05-26 | 2.21 | 2.32 | 2.12 | 2.19 | 480,569 | -0.90% |
| 2026-05-22 | 2.22 | 2.27 | 2.17 | 2.21 | 328,072 | +0.00% |
| 2026-05-21 | 2.11 | 2.24 | 2.01 | 2.21 | 929,675 | +4.25% |
| 2026-05-20 | 2.11 | 2.235 | 2.11 | 2.12 | 898,479 | +0.47% |
| 2026-05-19 | 2.1 | 2.16 | 2.019 | 2.11 | 790,426 | -0.47% |
| 2026-05-18 | 2.13 | 2.18 | 2.045 | 2.12 | 814,457 | -1.85% |
| 2026-05-15 | 2.24 | 2.29 | 2.14 | 2.16 | 1,104,558 | -6.09% |
| 2026-05-14 | 2.24 | 2.37 | 2.197 | 2.3 | 783,208 | +6.98% |
| 2026-05-13 | 2.12 | 2.205 | 2.09 | 2.15 | 459,250 | -0.46% |