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ANAB · Anaptysbio, Inc

$53.76 +3.47 (+6.90%) At close · Jul 21
Market Cap
$1.56B
Shares
29.10M

Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.

Short Squeeze Score
71/100
Short interest 17.7% of shares — P97 Days to cover 8.3 — P93 Price vs VWAP -10.0% — P27 Short-volume trend -3.8% — P37 Short interest change +11.2% — P68 Worst FTD 0.09% of shares — P73

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-30). 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
2026-06-30 5,148,302 4,631,786 +516,516 8.27
2026-06-15 4,631,786 4,821,283 -189,497 8.17
2026-05-29 4,821,283 4,796,235 +25,048 9.85
2026-05-15 4,796,235 4,461,532 +334,703 7.26
2026-04-30 4,461,532 4,106,275 +355,257 5.47
2026-04-15 6,159,412 7,217,280 -1,057,868 7.97
2026-03-31 7,217,280 7,190,156 +27,124 6.93
2026-03-13 7,190,156 8,049,664 -859,509 7.56
2026-02-27 8,049,664 8,450,676 -401,012 17.99
2026-02-13 8,450,676 8,497,113 -46,437 10.07
2026-01-30 8,497,113 8,350,398 +146,715 17.56
2026-01-15 8,350,398 7,713,826 +636,572 8.64
2025-12-31 7,713,826 8,466,372 -752,546 12.15
2025-12-15 8,466,372 8,795,000 -328,628 12.54
2025-11-28 8,795,000 8,895,480 -100,480 8.83
2025-11-14 8,895,480 10,273,690 -1,378,210 7.21
2025-10-31 10,273,690 10,658,572 -384,882 23.06
2025-10-15 10,658,572 10,743,894 -85,322 15.38
2025-09-30 10,743,894 14,116,616 -3,372,722 7.93
2025-09-15 14,116,616 14,545,686 -429,070 18.31
2025-08-29 14,545,686 14,393,470 +152,216 25.69
2025-08-15 14,393,470 14,343,954 +49,516 18.81
2025-07-31 14,343,954 14,071,161 +272,793 18.82
Showing 1–23 of 23 settlements
Key facts CIK 1370053 CUSIP 032724106 13F (30d) 16 filings 15 filers Visit website Investor relations