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ALEC · Alector, Inc.

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$1.96 -0.08 (-3.92%) At close · Aug 14
Market Cap
$218.85M
Shares
111.66M

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-07-06 388,484 323,305 711,789 25.1%
2026-06-29 310,289 283,734 594,023 31.0%
2026-06-22 658,163 3,712,793 4,370,956 45.4%
2026-06-15 424,123 242,634 666,757 22.6%
2026-06-08 402,832 367,778 770,610 34.6%
2026-06-01 793,578 1,013,762 1,807,340 37.9%
2026-05-25 564,992 941,261 1,506,253 46.5%
2026-05-18 637,353 961,029 1,598,382 42.5%
2026-05-11 744,550 677,887 1,422,437 44.8%
2026-05-04 433,328 217,336 650,664 28.6%
2026-04-27 361,381 454,196 815,577 34.1%
2026-04-20 327,837 963,278 1,291,115 48.4%
2026-04-13 371,877 353,929 725,806 33.0%
2026-04-06 385,659 223,208 608,867 26.1%
2026-03-30 546,527 1,701,520 2,248,047 42.0%
2026-03-23 557,057 441,016 998,073 40.8%
2026-03-16 443,735 824,633 1,268,368 33.8%
2026-03-09 787,336 1,017,292 1,804,628 37.2%
2026-03-02 887,741 737,825 1,625,566 31.5%
2026-02-23 875,837 811,245 1,687,082 33.7%
2026-02-16 381,340 415,023 796,363 35.6%
2026-02-09 870,821 1,437,792 2,308,613 51.1%
2026-02-02 820,552 1,292,112 2,112,664 40.7%
2026-01-26 595,726 844,483 1,440,209 41.7%
2026-01-19 470,844 727,348 1,198,192 39.1%
2026-01-12 1,131,193 1,889,507 3,020,700 45.7%
2026-01-05 1,047,581 1,682,319 2,729,900 42.8%
2025-12-29 567,690 1,043,582 1,611,272 44.0%
2025-12-22 740,463 543,563 1,284,026 39.5%
2025-12-15 1,099,324 1,624,610 2,723,934 38.8%
2025-12-08 1,451,503 3,504,149 4,955,652 43.3%
2025-12-01 2,013,145 2,169,575 4,182,720 45.6%
2025-11-24 962,549 645,360 1,607,909 39.3%
2025-11-17 1,652,073 1,767,584 3,419,657 42.6%
2025-11-10 2,501,342 2,173,771 4,675,113 46.7%
2025-11-03 2,847,961 1,753,996 4,601,957 44.1%
2025-10-27 3,197,098 9,465,354 12,662,452 59.1%
2025-10-20 9,233,450 28,480,899 37,714,349 54.7%
2025-10-13 1,086,356 1,709,844 2,796,200 41.9%
2025-10-06 727,307 1,325,414 2,052,721 40.7%
2025-09-29 783,602 2,928,626 3,712,228 59.8%
2025-09-22 783,022 1,471,024 2,254,046 47.4%
2025-09-15 499,700 1,936,201 2,435,901 41.7%
2025-09-08 650,870 6,614,453 7,265,323 77.5%
2025-09-01 877,589 2,157,797 3,035,386 50.6%
2025-08-25 429,269 1,025,379 1,454,648 43.7%
2025-08-18 1,344,918 1,675,687 3,020,605 49.4%
Showing 1–47 of 47 weeks
Key facts CIK 1653087 CUSIP 014442107 13F (30d) 135 filings 135 filers Visit website Investor relations