ALEC · Alector, Inc.
Total shares sold short and not yet covered, reported to FINRA by broker-dealers twice a month. Each reading settles on the 15th and the last business day of the month and is published seven business days later — the next scheduled dates are listed at the top of the table. Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-15). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
|
2026-08-14
Scheduled
FINRA publishes Aug 25
|
— | — | — | — |
|
2026-07-31
Scheduled
FINRA publishes Aug 11
|
— | — | — | — |
| 2026-07-15 | 5,664,933 | 5,716,527 | -51,594 | 10.19 |
| 2026-06-30 | 5,716,527 | 5,247,655 | +468,872 | 4.40 |
| 2026-06-15 | 5,247,655 | 5,085,727 | +161,928 | 7.64 |
| 2026-05-29 | 5,085,727 | 4,857,513 | +228,214 | 6.60 |
| 2026-05-15 | 4,857,513 | 4,999,721 | -142,208 | 9.19 |
| 2026-04-30 | 4,999,721 | 5,151,723 | -152,002 | 9.97 |
| 2026-04-15 | 5,151,723 | 6,284,391 | -1,132,668 | 6.28 |
| 2026-03-31 | 6,284,391 | 6,010,056 | +274,335 | 10.91 |
| 2026-03-13 | 6,010,056 | 6,001,780 | +8,276 | 6.09 |
| 2026-02-27 | 6,001,780 | 6,098,306 | -96,526 | 8.64 |
| 2026-02-13 | 6,098,306 | 6,533,581 | -435,275 | 6.32 |
| 2026-01-30 | 6,533,581 | 6,489,706 | +43,875 | 8.53 |
| 2026-01-15 | 6,489,706 | 6,120,822 | +368,884 | 5.25 |
| 2025-12-31 | 6,120,822 | 6,319,929 | -199,107 | 5.61 |
| 2025-12-15 | 6,319,929 | 4,651,197 | +1,668,732 | 3.20 |
| 2025-11-28 | 4,651,197 | 5,424,705 | -773,508 | 3.48 |
| 2025-11-14 | 5,424,705 | 4,646,742 | +777,963 | 2.69 |
| 2025-10-31 | 4,646,742 | 5,166,162 | -519,420 | 1.00 |
| 2025-10-15 | 5,166,162 | 5,479,405 | -313,243 | 4.20 |
| 2025-09-30 | 5,479,405 | 5,841,774 | -362,369 | 5.40 |
| 2025-09-15 | 5,841,774 | 5,419,873 | +421,901 | 3.60 |
| 2025-08-29 | 5,419,873 | 5,472,802 | -52,929 | 5.80 |
| 2025-08-15 | 5,472,802 | 5,680,352 | -207,550 | 2.58 |
| 2025-07-31 | 5,680,352 | 5,870,569 | -190,217 | 11.51 |