Watch PLAB. 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 |
|---|---|---|---|---|---|
| 2026-08-31 | 4.6M | +227K | 7.86% | 2M | 2.3 |
| 2026-08-14 | 4.4M | −89K | 7.47% | 738K | 6.0 |
| 2026-07-31 | 4.5M | +318K | 7.62% | 908K | 5.0 |
| 2026-07-15 | 4.2M | +273K | 7.09% | 1.2M | 3.5 |