SION short interest
Sionna Therapeutics Inc. · Healthcare · Biotechnology · settlement date 2026-09-30
| Shares short | 3,797,732 |
|---|---|
| Change vs prior report | -168,406 (-4.2%) |
| Change over six months | +1.1% |
| Days to cover | 2.30 (sector: 3.78) |
| Average daily volume | 1,647,766 |
| Rank in Healthcare | #691 of 922 by days to cover |
SION short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 3,797,732 | -4.2% | 2.30 | 1,647,766 |
| 2026-09-15 | 3,966,138 | -7.7% | 3.10 | 1,280,298 |
| 2026-08-31 | 4,298,665 | +1.2% | 2.62 | 1,642,953 |
| 2026-08-14 | 4,247,834 | +1.2% | 1.00 | 7,351,935 |
| 2026-07-31 | 4,198,394 | -20.1% | 6.79 | 618,000 |
| 2026-07-15 | 5,257,277 | -4.8% | 11.51 | 456,753 |
| 2026-06-30 | 5,522,307 | +10.5% | 10.14 | 544,387 |
| 2026-06-15 | 4,996,300 | +7.7% | 13.87 | 360,220 |
| 2026-05-29 | 4,639,069 | -2.1% | 14.53 | 319,204 |
| 2026-05-15 | 4,740,815 | +12.1% | 11.25 | 421,449 |
| 2026-04-30 | 4,230,439 | +11.3% | 9.29 | 455,368 |
| 2026-04-15 | 3,799,971 | +1.1% | 8.51 | 446,313 |
| 2026-03-31 | 3,756,705 | +6.0% | 11.29 | 332,759 |
| 2026-03-13 | 3,544,166 | +5.8% | 12.34 | 287,319 |
| 2026-02-27 | 3,350,255 | +9.3% | 23.36 | 143,394 |
| 2026-02-13 | 3,064,857 | -2.5% | 7.53 | 407,220 |
| 2026-01-30 | 3,143,560 | +2.9% | 13.55 | 231,949 |
| 2026-01-15 | 3,053,667 | -6.3% | 9.78 | 312,305 |
| 2025-12-31 | 3,258,091 | +13.3% | 8.47 | 384,534 |
| 2025-12-15 | 2,876,610 | +0.5% | 9.94 | 289,353 |
| 2025-11-28 | 2,862,557 | -3.7% | 10.75 | 266,254 |
| 2025-11-14 | 2,973,430 | +0.3% | 15.27 | 194,700 |
| 2025-10-31 | 2,965,776 | -12.1% | 8.13 | 364,626 |
| 2025-10-15 | 3,372,058 | -14.2% | 11.25 | 299,618 |
| 2025-09-30 | 3,931,123 | +4.2% | 11.89 | 330,552 |
import finzdata as yf
yf.Ticker("SION").short_interest # every report since 2017
yf.Client().short_interest(["SION"], start="2018-01-01")Healthcare short interest · SION price history · Who owns SION · All short interest