Watch TNDM. Know when insiders buy.
One email the day a filing lands. Free.
| Report date | Shares short | Change | % of shares out | Avg daily volume | Days to cover |
|---|---|---|---|---|---|
| 2026-08-14 | 10.6M | −657K | — | 2.7M | 3.9 |
| 2026-07-31 | 11.2M | −1.9M | — | 1.7M | 6.6 |
| 2026-07-15 | 13.1M | +384K | — | 1.5M | 8.7 |