ALEC Historical Prices
Alector, Inc. Common Stock · daily open, high, low, close & volume
Trading days
249
Period high
2.76
Period low
1.09
Period change
+87.79%
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Nov 9, 2026 | 2.29 | 2.56 | 2.28 | 2.46 | +7.42% | 2,338,111 |
| Nov 6, 2026 | 2.18 | 2.31 | 2.08 | 2.29 | +9.57% | 1,020,183 |
| Nov 5, 2026 | 2.27 | 2.28 | 2.02 | 2.09 | -8.33% | 1,279,852 |
| Nov 4, 2026 | 2.14 | 2.29 | 2.08 | 2.28 | +11.22% | 1,479,279 |
| Nov 3, 2026 | 2.17 | 2.25 | 2.03 | 2.05 | -4.65% | 1,430,963 |
| Nov 2, 2026 | 2.20 | 2.23 | 2.09 | 2.15 | -2.71% | 954,094 |
| Oct 30, 2026 | 2.20 | 2.25 | 2.09 | 2.21 | -1.34% | 1,111,241 |
| Oct 29, 2026 | 2.25 | 2.32 | 2.20 | 2.24 | -0.44% | 1,460,703 |
| Oct 28, 2026 | 2.08 | 2.26 | 2.05 | 2.25 | +7.14% | 1,910,176 |
| Oct 27, 2026 | 1.82 | 2.12 | 1.82 | 2.10 | +14.75% | 4,569,827 |
| Oct 26, 2026 | 1.85 | 1.94 | 1.79 | 1.83 | +0.00% | 2,659,496 |
| Oct 23, 2026 | 1.81 | 1.84 | 1.72 | 1.83 | +0.00% | 2,015,248 |
| Oct 22, 2026 | 1.86 | 1.88 | 1.74 | 1.83 | -2.14% | 1,480,206 |
| Oct 21, 2026 | 1.97 | 2.00 | 1.85 | 1.87 | -5.08% | 1,141,621 |
| Oct 20, 2026 | 1.96 | 2.04 | 1.92 | 1.97 | +1.03% | 2,021,360 |
| Oct 19, 2026 | 1.85 | 1.99 | 1.76 | 1.95 | +5.98% | 2,366,340 |
| Oct 16, 2026 | 2.18 | 2.18 | 1.79 | 1.84 | -3.66% | 5,157,366 |
| Oct 15, 2026 | 1.92 | 1.95 | 1.85 | 1.91 | +1.60% | 1,630,377 |
| Oct 14, 2026 | 1.84 | 1.92 | 1.82 | 1.88 | +0.53% | 2,912,376 |
| Oct 13, 2026 | 2.07 | 2.08 | 1.77 | 1.87 | -10.10% | 2,843,592 |
| Oct 12, 2026 | 2.08 | 2.14 | 2.02 | 2.08 | +0.00% | 1,630,342 |
| Oct 9, 2026 | 2.01 | 2.15 | 2.00 | 2.08 | +2.97% | 3,118,491 |
| Oct 8, 2026 | 1.90 | 2.06 | 1.88 | 2.02 | +5.21% | 6,453,308 |
| Oct 7, 2026 | 1.78 | 1.92 | 1.73 | 1.92 | +6.08% | 3,972,728 |
| Oct 6, 2026 | 2.08 | 2.23 | 1.75 | 1.81 | -9.05% | 10,177,270 |
| Oct 5, 2026 | 2.73 | 2.73 | 1.96 | 1.99 | +9.94% | 89,983,690 |
| Oct 2, 2026 | 1.89 | 1.97 | 1.80 | 1.81 | -2.69% | 1,170,911 |
| Oct 1, 2026 | 1.82 | 1.91 | 1.80 | 1.86 | +0.54% | 774,594 |
| Sep 30, 2026 | 1.88 | 1.95 | 1.83 | 1.85 | -1.07% | 792,697 |
| Sep 29, 2026 | 1.95 | 1.95 | 1.86 | 1.87 | -2.60% | 960,740 |
| Sep 28, 2026 | 1.92 | 1.96 | 1.86 | 1.92 | -1.54% | 713,343 |
| Sep 25, 2026 | 1.92 | 2.05 | 1.90 | 1.95 | +1.56% | 1,024,565 |
| Sep 24, 2026 | 2.02 | 2.05 | 1.91 | 1.92 | -4.95% | 849,547 |
| Sep 23, 2026 | 2.00 | 2.02 | 1.95 | 2.02 | +0.50% | 1,182,750 |
| Sep 22, 2026 | 1.97 | 2.04 | 1.93 | 2.01 | +4.15% | 1,464,201 |
| Sep 21, 2026 | 1.90 | 1.95 | 1.85 | 1.93 | +1.05% | 1,281,187 |
| Sep 18, 2026 | 1.85 | 1.91 | 1.79 | 1.91 | +3.24% | 2,119,033 |
| Sep 17, 2026 | 1.96 | 1.97 | 1.83 | 1.85 | -3.90% | 931,237 |
| Sep 16, 2026 | 2.06 | 2.06 | 1.91 | 1.93 | -5.41% | 622,264 |
| Sep 15, 2026 | 2.19 | 2.21 | 1.99 | 2.04 | -7.92% | 715,905 |
| Sep 14, 2026 | 2.15 | 2.23 | 2.10 | 2.21 | +3.27% | 2,467,756 |
| Sep 11, 2026 | 2.17 | 2.22 | 2.02 | 2.14 | -5.73% | 4,699,047 |
| Sep 9, 2026 | 2.47 | 2.47 | 2.25 | 2.27 | -8.10% | 505,802 |
| Sep 8, 2026 | 2.38 | 2.61 | 2.33 | 2.47 | +0.41% | 916,617 |
| Sep 4, 2026 | 2.52 | 2.58 | 2.44 | 2.46 | -1.99% | 496,601 |
| Sep 3, 2026 | 2.70 | 2.75 | 2.44 | 2.51 | -7.72% | 2,792,297 |
| Sep 2, 2026 | 2.40 | 2.76 | 2.40 | 2.72 | +20.35% | 1,672,778 |
| Aug 31, 2026 | 2.32 | 2.35 | 2.23 | 2.26 | -3.42% | 610,060 |
| Aug 28, 2026 | 2.39 | 2.44 | 2.31 | 2.34 | -2.09% | 542,222 |
| Aug 27, 2026 | 2.44 | 2.50 | 2.39 | 2.39 | -2.85% | 706,964 |
| Aug 26, 2026 | 2.38 | 2.52 | 2.26 | 2.46 | +4.24% | 996,494 |
| Aug 25, 2026 | 2.32 | 2.46 | 2.28 | 2.36 | +2.61% | 558,276 |
| Aug 24, 2026 | 2.36 | 2.46 | 2.29 | 2.30 | -2.54% | 738,145 |
| Aug 21, 2026 | 2.28 | 2.37 | 2.20 | 2.36 | +4.42% | 728,095 |
| Aug 20, 2026 | 2.40 | 2.46 | 2.19 | 2.26 | -7.00% | 662,589 |
| Aug 19, 2026 | 2.25 | 2.52 | 2.15 | 2.43 | +9.95% | 3,755,622 |
| Aug 18, 2026 | 2.04 | 2.30 | 2.04 | 2.21 | +7.80% | 4,774,016 |
| Aug 17, 2026 | 1.91 | 2.09 | 1.90 | 2.05 | +4.59% | 913,808 |
| Aug 14, 2026 | 2.04 | 2.07 | 1.95 | 1.96 | -3.92% | 649,022 |
| Aug 13, 2026 | 2.15 | 2.15 | 1.98 | 2.04 | -5.12% | 1,294,760 |
| Aug 12, 2026 | 2.06 | 2.17 | 2.02 | 2.15 | +2.87% | 786,197 |
| Aug 11, 2026 | 1.68 | 2.13 | 1.65 | 2.09 | +23.67% | 5,543,288 |
| Aug 10, 2026 | 1.77 | 1.78 | 1.60 | 1.69 | -5.06% | 805,595 |
| Aug 7, 2026 | 1.84 | 2.00 | 1.74 | 1.78 | -2.73% | 1,246,978 |
| Aug 6, 2026 | 1.49 | 2.04 | 1.48 | 1.83 | +22.82% | 5,704,449 |
| Aug 5, 2026 | 1.56 | 1.57 | 1.46 | 1.49 | -3.25% | 392,306 |
| Aug 4, 2026 | 1.51 | 1.61 | 1.51 | 1.54 | +1.99% | 407,157 |
| Aug 3, 2026 | 1.51 | 1.54 | 1.46 | 1.51 | +0.00% | 359,923 |
| Jul 31, 2026 | 1.62 | 1.62 | 1.49 | 1.51 | -6.79% | 548,295 |
| Jul 30, 2026 | 1.52 | 1.67 | 1.51 | 1.62 | +6.58% | 453,154 |
| Jul 29, 2026 | 1.51 | 1.56 | 1.49 | 1.52 | +0.00% | 307,859 |
| Jul 28, 2026 | 1.51 | 1.54 | 1.48 | 1.52 | +0.66% | 342,804 |
| Jul 27, 2026 | 1.49 | 1.57 | 1.47 | 1.51 | +2.03% | 229,002 |
| Jul 24, 2026 | 1.50 | 1.51 | 1.46 | 1.48 | -0.67% | 325,295 |
| Jul 23, 2026 | 1.48 | 1.54 | 1.47 | 1.49 | -2.61% | 607,112 |
| Jul 22, 2026 | 1.53 | 1.53 | 1.49 | 1.53 | -0.65% | 333,441 |
| Jul 21, 2026 | 1.42 | 1.55 | 1.42 | 1.54 | +7.69% | 499,661 |
| Jul 20, 2026 | 1.49 | 1.50 | 1.42 | 1.43 | -4.67% | 463,911 |
| Jul 17, 2026 | 1.43 | 1.52 | 1.42 | 1.50 | +2.04% | 500,120 |
| Jul 16, 2026 | 1.40 | 1.50 | 1.39 | 1.47 | -2.00% | 713,480 |
| Jul 15, 2026 | 1.39 | 1.53 | 1.37 | 1.50 | +7.91% | 719,640 |
| Jul 14, 2026 | 1.53 | 1.53 | 1.37 | 1.39 | -7.95% | 517,261 |
| Jul 13, 2026 | 1.60 | 1.61 | 1.50 | 1.51 | -6.21% | 775,930 |
| Jul 10, 2026 | 1.63 | 1.66 | 1.48 | 1.61 | -1.53% | 597,118 |
| Jul 9, 2026 | 1.83 | 1.86 | 1.60 | 1.64 | -10.66% | 589,286 |
| Jul 8, 2026 | 1.90 | 1.94 | 1.80 | 1.83 | -5.18% | 643,892 |
| Jul 7, 2026 | 1.97 | 1.97 | 1.85 | 1.93 | -0.52% | 416,165 |
| Jul 6, 2026 | 2.06 | 2.06 | 1.93 | 1.94 | -5.83% | 588,496 |
| Jul 2, 2026 | 2.02 | 2.15 | 2.00 | 2.06 | +2.49% | 394,059 |
| Jul 1, 2026 | 1.99 | 2.07 | 1.96 | 2.01 | +0.00% | 368,534 |
| Jun 30, 2026 | 2.10 | 2.13 | 1.98 | 2.01 | -3.37% | 609,378 |
| Jun 29, 2026 | 1.88 | 2.09 | 1.77 | 2.08 | +11.83% | 544,171 |
| Jun 26, 2026 | 1.84 | 1.96 | 1.84 | 1.86 | +0.54% | 3,845,498 |
| Jun 25, 2026 | 1.79 | 2.02 | 1.75 | 1.85 | +3.35% | 2,828,250 |
| Jun 24, 2026 | 1.78 | 1.87 | 1.78 | 1.79 | -2.19% | 510,426 |
| Jun 23, 2026 | 1.75 | 1.87 | 1.72 | 1.83 | +2.81% | 854,070 |
| Jun 22, 2026 | 1.76 | 1.92 | 1.72 | 1.78 | +1.71% | 1,592,996 |
| Jun 18, 2026 | 1.58 | 1.77 | 1.56 | 1.75 | +12.18% | 1,108,448 |
| Jun 17, 2026 | 1.55 | 1.60 | 1.53 | 1.56 | +1.30% | 496,016 |
| Jun 16, 2026 | 1.47 | 1.55 | 1.41 | 1.54 | +4.05% | 712,030 |
| Jun 15, 2026 | 1.56 | 1.59 | 1.46 | 1.48 | -3.27% | 629,558 |
| Jun 12, 2026 | 1.58 | 1.60 | 1.53 | 1.53 | -2.55% | 263,831 |
| Jun 11, 2026 | 1.52 | 1.74 | 1.49 | 1.57 | +3.29% | 428,245 |
| Jun 10, 2026 | 1.69 | 1.69 | 1.49 | 1.52 | -6.75% | 429,021 |
| Jun 9, 2026 | 1.64 | 1.68 | 1.58 | 1.63 | -0.61% | 439,473 |
| Jun 8, 2026 | 1.65 | 1.67 | 1.57 | 1.64 | +0.31% | 667,835 |
| Jun 5, 2026 | 1.81 | 1.84 | 1.63 | 1.64 | -9.67% | 364,367 |
| Jun 4, 2026 | 1.79 | 1.92 | 1.79 | 1.81 | +1.97% | 449,441 |
| Jun 3, 2026 | 1.94 | 1.94 | 1.71 | 1.77 | -8.97% | 1,691,685 |
| Jun 2, 2026 | 2.04 | 2.07 | 1.92 | 1.95 | -5.80% | 1,561,015 |
| Jun 1, 2026 | 2.16 | 2.16 | 2.07 | 2.07 | -4.17% | 705,789 |
| May 29, 2026 | 2.15 | 2.25 | 2.05 | 2.16 | +0.47% | 993,192 |
| May 28, 2026 | 2.21 | 2.24 | 2.10 | 2.15 | -2.71% | 1,300,474 |
| May 27, 2026 | 2.20 | 2.28 | 2.17 | 2.21 | +0.91% | 462,444 |
| May 26, 2026 | 2.21 | 2.32 | 2.12 | 2.19 | -0.90% | 480,570 |
| May 22, 2026 | 2.22 | 2.27 | 2.17 | 2.21 | +0.00% | 328,072 |
| May 21, 2026 | 2.11 | 2.24 | 2.01 | 2.21 | +4.25% | 929,675 |
| May 20, 2026 | 2.11 | 2.23 | 2.11 | 2.12 | +0.47% | 898,480 |
| May 19, 2026 | 2.10 | 2.16 | 2.02 | 2.11 | -0.47% | 790,427 |
| May 18, 2026 | 2.13 | 2.18 | 2.04 | 2.12 | -1.85% | 814,458 |
| May 15, 2026 | 2.24 | 2.29 | 2.14 | 2.16 | -6.09% | 1,104,558 |
| May 14, 2026 | 2.24 | 2.37 | 2.20 | 2.30 | +6.98% | 783,208 |
| May 13, 2026 | 2.12 | 2.21 | 2.09 | 2.15 | -0.46% | 459,251 |
| May 12, 2026 | 2.03 | 2.21 | 2.03 | 2.16 | +5.37% | 437,339 |
| May 11, 2026 | 2.10 | 2.20 | 2.00 | 2.05 | -2.38% | 389,061 |
| May 8, 2026 | 2.12 | 2.33 | 2.09 | 2.10 | -13.93% | 720,453 |
| May 7, 2026 | 2.56 | 2.56 | 2.41 | 2.44 | -5.06% | 276,542 |
| May 6, 2026 | 2.58 | 2.70 | 2.56 | 2.57 | +0.00% | 470,645 |
| May 5, 2026 | 2.54 | 2.62 | 2.53 | 2.57 | +2.39% | 361,275 |
| May 4, 2026 | 2.35 | 2.54 | 2.35 | 2.51 | +6.36% | 447,856 |
| May 1, 2026 | 2.33 | 2.38 | 2.29 | 2.36 | -0.42% | 420,337 |
| Apr 30, 2026 | 2.29 | 2.44 | 2.15 | 2.37 | +3.04% | 713,161 |
| Apr 29, 2026 | 2.36 | 2.38 | 2.27 | 2.30 | -3.77% | 368,602 |
| Apr 28, 2026 | 2.35 | 2.42 | 2.35 | 2.39 | +1.70% | 297,118 |
| Apr 27, 2026 | 2.41 | 2.46 | 2.33 | 2.35 | -2.49% | 592,892 |
| Apr 24, 2026 | 2.42 | 2.53 | 2.36 | 2.41 | -0.82% | 320,568 |
| Apr 23, 2026 | 2.52 | 2.52 | 2.38 | 2.43 | -0.82% | 303,384 |
| Apr 22, 2026 | 2.48 | 2.70 | 2.37 | 2.45 | -0.41% | 1,421,360 |
| Apr 21, 2026 | 2.70 | 2.73 | 2.45 | 2.46 | -9.06% | 298,688 |
| Apr 20, 2026 | 2.56 | 2.74 | 2.56 | 2.71 | +5.25% | 324,864 |
| Apr 17, 2026 | 2.62 | 2.62 | 2.49 | 2.57 | +0.78% | 343,060 |
| Apr 16, 2026 | 2.52 | 2.67 | 2.47 | 2.55 | -1.16% | 561,130 |
| Apr 15, 2026 | 2.53 | 2.61 | 2.50 | 2.58 | +7.05% | 538,356 |
| Apr 14, 2026 | 2.35 | 2.44 | 2.34 | 2.41 | +3.43% | 393,997 |
| Apr 13, 2026 | 2.44 | 2.44 | 2.27 | 2.33 | -4.90% | 362,213 |
| Apr 10, 2026 | 2.40 | 2.53 | 2.40 | 2.45 | +2.08% | 572,991 |
| Apr 9, 2026 | 2.38 | 2.42 | 2.34 | 2.40 | -0.83% | 278,686 |
| Apr 8, 2026 | 2.58 | 2.60 | 2.38 | 2.42 | -2.02% | 340,364 |
| Apr 7, 2026 | 2.34 | 2.49 | 2.30 | 2.47 | +5.33% | 562,115 |
| Apr 6, 2026 | 2.41 | 2.49 | 2.33 | 2.35 | -2.70% | 582,331 |
| Apr 2, 2026 | 2.45 | 2.52 | 2.13 | 2.41 | -4.74% | 1,316,858 |
| Apr 1, 2026 | 2.18 | 2.63 | 2.16 | 2.53 | +17.67% | 3,304,102 |
| Mar 31, 2026 | 2.03 | 2.19 | 2.03 | 2.15 | +6.44% | 352,536 |
| Mar 30, 2026 | 2.02 | 2.05 | 1.95 | 2.02 | +1.00% | 384,066 |
| Mar 27, 2026 | 2.09 | 2.15 | 1.98 | 2.00 | -5.66% | 466,465 |
| Mar 26, 2026 | 2.03 | 2.17 | 2.03 | 2.12 | -2.30% | 388,177 |
| Mar 25, 2026 | 2.12 | 2.22 | 2.12 | 2.17 | +4.33% | 589,311 |
| Mar 24, 2026 | 1.97 | 2.14 | 1.97 | 2.08 | +0.97% | 594,276 |
| Mar 23, 2026 | 2.11 | 2.16 | 2.04 | 2.06 | +0.49% | 408,741 |
| Mar 20, 2026 | 2.06 | 2.10 | 2.00 | 2.05 | -0.49% | 1,924,891 |
| Mar 19, 2026 | 2.00 | 2.10 | 1.96 | 2.06 | +0.49% | 379,768 |
| Mar 18, 2026 | 2.19 | 2.21 | 2.00 | 2.05 | -8.07% | 558,963 |
| Mar 17, 2026 | 2.22 | 2.28 | 2.17 | 2.23 | +0.90% | 515,773 |
| Mar 16, 2026 | 2.29 | 2.29 | 2.19 | 2.21 | +0.45% | 372,319 |
| Mar 13, 2026 | 2.24 | 2.33 | 2.13 | 2.20 | -1.35% | 648,652 |
| Mar 12, 2026 | 2.20 | 2.32 | 2.20 | 2.23 | -3.88% | 623,703 |
| Mar 11, 2026 | 2.35 | 2.38 | 2.21 | 2.32 | -2.52% | 813,236 |
| Mar 10, 2026 | 2.39 | 2.65 | 2.37 | 2.38 | +8.68% | 1,822,947 |
| Mar 9, 2026 | 1.94 | 2.21 | 1.94 | 2.19 | +9.50% | 939,030 |
| Mar 6, 2026 | 1.94 | 2.03 | 1.89 | 2.00 | +1.01% | 684,096 |
| Mar 5, 2026 | 2.15 | 2.15 | 1.94 | 1.98 | -7.91% | 1,100,242 |
| Mar 4, 2026 | 2.21 | 2.21 | 2.08 | 2.15 | +1.90% | 734,029 |
| Mar 3, 2026 | 2.17 | 2.17 | 2.06 | 2.11 | -4.52% | 647,141 |
| Mar 2, 2026 | 2.37 | 2.37 | 2.04 | 2.21 | -9.05% | 1,992,189 |
| Feb 27, 2026 | 2.51 | 2.53 | 2.31 | 2.43 | -5.08% | 1,337,720 |
| Feb 26, 2026 | 2.12 | 2.57 | 2.07 | 2.56 | +7.11% | 1,311,359 |
| Feb 25, 2026 | 2.20 | 2.42 | 2.19 | 2.39 | +9.13% | 992,708 |
| Feb 24, 2026 | 2.10 | 2.23 | 2.06 | 2.19 | +4.29% | 528,857 |
| Feb 23, 2026 | 1.98 | 2.12 | 1.93 | 2.10 | +5.53% | 840,577 |
| Feb 20, 2026 | 1.97 | 2.03 | 1.93 | 1.99 | -1.00% | 486,439 |
| Feb 19, 2026 | 1.98 | 2.04 | 1.94 | 2.01 | +1.52% | 563,847 |
| Feb 18, 2026 | 1.99 | 2.04 | 1.95 | 1.98 | +0.51% | 518,736 |
| Feb 17, 2026 | 1.88 | 2.00 | 1.86 | 1.97 | +5.35% | 669,248 |
| Feb 13, 2026 | 1.90 | 2.02 | 1.84 | 1.87 | -1.58% | 1,238,011 |
| Feb 12, 2026 | 1.93 | 1.98 | 1.88 | 1.90 | -1.04% | 1,319,817 |
| Feb 11, 2026 | 1.96 | 1.97 | 1.86 | 1.92 | -1.54% | 590,767 |
| Feb 10, 2026 | 1.98 | 1.98 | 1.89 | 1.95 | -0.51% | 928,769 |
| Feb 9, 2026 | 1.90 | 2.00 | 1.89 | 1.96 | +0.00% | 438,076 |
| Feb 6, 2026 | 1.83 | 1.96 | 1.83 | 1.96 | +7.69% | 1,161,356 |
| Feb 5, 2026 | 1.81 | 1.90 | 1.75 | 1.82 | -5.70% | 1,665,866 |
| Feb 4, 2026 | 1.96 | 1.98 | 1.87 | 1.93 | +0.00% | 722,680 |
| Feb 3, 2026 | 1.98 | 2.05 | 1.89 | 1.93 | -3.02% | 789,332 |
| Feb 2, 2026 | 1.87 | 2.03 | 1.84 | 1.99 | +5.29% | 851,219 |
| Jan 30, 2026 | 1.87 | 1.90 | 1.81 | 1.89 | -1.05% | 1,204,455 |
| Jan 29, 2026 | 1.93 | 1.94 | 1.90 | 1.91 | +0.00% | 469,505 |
| Jan 28, 2026 | 1.96 | 1.97 | 1.85 | 1.91 | -2.05% | 777,952 |
| Jan 27, 2026 | 1.95 | 1.98 | 1.91 | 1.95 | +1.04% | 226,782 |
| Jan 26, 2026 | 1.93 | 2.00 | 1.90 | 1.93 | -0.52% | 773,872 |
| Jan 23, 2026 | 1.89 | 1.94 | 1.88 | 1.94 | +1.04% | 671,873 |
| Jan 22, 2026 | 1.87 | 2.00 | 1.87 | 1.92 | +0.00% | 516,943 |
| Jan 21, 2026 | 1.82 | 1.93 | 1.80 | 1.92 | +4.92% | 691,491 |
| Jan 20, 2026 | 1.81 | 1.86 | 1.76 | 1.83 | -0.54% | 1,181,384 |
| Jan 16, 2026 | 1.80 | 1.98 | 1.78 | 1.84 | +1.10% | 1,207,205 |
| Jan 15, 2026 | 1.79 | 1.84 | 1.74 | 1.82 | -1.62% | 2,105,953 |
| Jan 14, 2026 | 1.92 | 1.93 | 1.84 | 1.85 | -3.65% | 1,286,891 |
| Jan 13, 2026 | 1.85 | 1.94 | 1.80 | 1.92 | +4.35% | 739,042 |
| Jan 12, 2026 | 1.84 | 1.85 | 1.71 | 1.84 | -1.08% | 1,271,939 |
| Jan 9, 2026 | 1.79 | 1.87 | 1.76 | 1.86 | +5.08% | 1,329,975 |
| Jan 8, 2026 | 1.70 | 1.79 | 1.69 | 1.77 | +0.57% | 1,001,939 |
| Jan 7, 2026 | 1.71 | 1.76 | 1.69 | 1.76 | +4.14% | 1,259,338 |
| Jan 6, 2026 | 1.58 | 1.71 | 1.55 | 1.69 | +5.62% | 1,421,053 |
| Jan 5, 2026 | 1.51 | 1.60 | 1.51 | 1.60 | +4.58% | 1,368,874 |
| Jan 2, 2026 | 1.57 | 1.62 | 1.50 | 1.53 | -1.92% | 638,735 |
| Dec 31, 2025 | 1.51 | 1.58 | 1.50 | 1.56 | +2.63% | 768,807 |
| Dec 30, 2025 | 1.52 | 1.54 | 1.49 | 1.52 | +0.00% | 676,164 |
| Dec 29, 2025 | 1.44 | 1.53 | 1.44 | 1.52 | +4.83% | 1,576,507 |
| Dec 26, 2025 | 1.44 | 1.48 | 1.40 | 1.45 | +0.00% | 640,188 |
| Dec 24, 2025 | 1.42 | 1.47 | 1.42 | 1.45 | +2.84% | 400,786 |
| Dec 23, 2025 | 1.42 | 1.47 | 1.40 | 1.41 | -2.76% | 1,095,324 |
| Dec 22, 2025 | 1.40 | 1.49 | 1.40 | 1.45 | +3.57% | 1,112,494 |
| Dec 19, 2025 | 1.37 | 1.45 | 1.35 | 1.40 | +0.72% | 3,004,323 |
| Dec 18, 2025 | 1.36 | 1.45 | 1.34 | 1.39 | +2.96% | 1,295,877 |
| Dec 17, 2025 | 1.39 | 1.42 | 1.33 | 1.35 | -2.88% | 640,311 |
| Dec 16, 2025 | 1.39 | 1.45 | 1.35 | 1.39 | -2.11% | 851,681 |
| Dec 15, 2025 | 1.52 | 1.52 | 1.42 | 1.42 | -4.70% | 1,217,514 |
| Dec 12, 2025 | 1.46 | 1.54 | 1.41 | 1.49 | +2.05% | 1,472,661 |
| Dec 11, 2025 | 1.31 | 1.54 | 1.29 | 1.46 | +12.31% | 4,998,035 |
| Dec 10, 2025 | 1.27 | 1.31 | 1.25 | 1.30 | +1.56% | 977,323 |
| Dec 9, 2025 | 1.22 | 1.29 | 1.18 | 1.28 | +4.92% | 2,351,001 |
| Dec 8, 2025 | 1.24 | 1.27 | 1.20 | 1.22 | +0.00% | 1,641,482 |
| Dec 5, 2025 | 1.21 | 1.26 | 1.19 | 1.22 | +0.83% | 1,355,035 |
| Dec 4, 2025 | 1.12 | 1.25 | 1.11 | 1.21 | +6.14% | 2,784,870 |
| Dec 3, 2025 | 1.14 | 1.16 | 1.09 | 1.14 | +0.00% | 2,416,340 |
| Dec 2, 2025 | 1.23 | 1.24 | 1.13 | 1.14 | -7.32% | 1,397,653 |
| Dec 1, 2025 | 1.30 | 1.32 | 1.22 | 1.23 | -7.52% | 1,214,564 |
| Nov 28, 2025 | 1.36 | 1.36 | 1.30 | 1.33 | -1.48% | 569,033 |
| Nov 26, 2025 | 1.27 | 1.39 | 1.27 | 1.35 | +5.47% | 1,337,791 |
| Nov 25, 2025 | 1.28 | 1.34 | 1.26 | 1.28 | +0.00% | 820,750 |
| Nov 24, 2025 | 1.26 | 1.30 | 1.26 | 1.28 | +3.23% | 1,358,368 |
| Nov 21, 2025 | 1.20 | 1.28 | 1.19 | 1.24 | +3.33% | 1,065,071 |
| Nov 20, 2025 | 1.26 | 1.35 | 1.19 | 1.20 | -1.64% | 2,111,676 |
| Nov 19, 2025 | 1.28 | 1.35 | 1.21 | 1.22 | -3.94% | 1,528,659 |
| Nov 18, 2025 | 1.24 | 1.33 | 1.21 | 1.27 | +2.42% | 1,708,628 |
| Nov 17, 2025 | 1.19 | 1.29 | 1.16 | 1.24 | +0.00% | 1,615,228 |
| Nov 14, 2025 | 1.23 | 1.29 | 1.21 | 1.24 | +3.33% | 1,647,681 |
| Nov 13, 2025 | 1.32 | 1.36 | 1.20 | 1.20 | -10.45% | 2,597,105 |
| Nov 12, 2025 | 1.34 | 1.44 | 1.30 | 1.34 | -1.47% | 2,698,220 |
| Nov 11, 2025 | 1.30 | 1.39 | 1.30 | 1.36 | +3.82% | 1,342,358 |
| Nov 10, 2025 | 1.27 | 1.41 | 1.26 | 1.31 | +2.34% | 1,712,399 |
Daily open, high, low, close and volume for Alector, Inc. Common Stock (ALEC). Showing 249 trading days. Unadjusted prices.