Watch CELC. Know when insiders buy.
One email the day a filing lands. Free.
A free account adds a watchlist, alerts when insiders, Congress or short sellers move on your tickers, and a morning brief. Sign up
| Report date | Shares short | Change | % of shares out | Avg daily volume | Days to cover |
|---|---|---|---|---|---|
| 2026-08-14 | 10.5M | +272K | 21.53% | 797K | 13.2 |
| 2026-07-31 | 10.3M | −889K | 20.97% | 1.5M | 6.8 |
| 2026-07-15 | 11.2M | +183K | 22.79% | 2M | 5.7 |