Watch BLDP. 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 | Shares short | Change |
|---|---|---|
| 2026-10-15 | 6.1M | +1M |
| 2026-09-30 | 5.1M | −1.4M |
| 2026-09-15 | 6.5M | −721K |
| 2026-08-31 | 7.2M | +1.4M |
| 2026-08-15 | 5.8M | +973K |
| 2026-07-31 | 4.8M | +109K |