Watch ATEC. 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 | 13.6M | −158K | 8.82% | 2.8M | 4.8 |
| 2026-07-31 | 13.8M | +40K | 8.93% | 1.9M | 7.3 |
| 2026-07-15 | 13.7M | −868K | 8.90% | 2.4M | 5.7 |