INSM short interest
Insmed Incorporated · Healthcare · Biotechnology · settlement date 2026-09-30
| Shares short | 13,800,693 |
|---|---|
| Change vs prior report | 2,998,623 (+27.8%) |
| Change over six months | +0.3% |
| Days to cover | 6.50 (sector: 3.78) |
| Average daily volume | 2,123,248 |
| Rank in Healthcare | #277 of 922 by days to cover |
INSM short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 13,800,693 | +27.8% | 6.50 | 2,123,248 |
| 2026-09-15 | 10,802,070 | -5.6% | 5.27 | 2,049,480 |
| 2026-08-31 | 11,440,176 | +5.0% | 6.86 | 1,668,674 |
| 2026-08-14 | 10,892,278 | -4.0% | 2.66 | 4,091,987 |
| 2026-07-31 | 11,350,580 | -2.4% | 5.14 | 2,207,650 |
| 2026-07-15 | 11,624,756 | -27.5% | 4.76 | 2,440,598 |
| 2026-06-30 | 16,030,053 | -14.0% | 2.76 | 5,800,443 |
| 2026-06-15 | 18,647,626 | -2.5% | 4.48 | 4,164,071 |
| 2026-05-29 | 19,132,984 | +8.7% | 6.11 | 3,132,399 |
| 2026-05-15 | 17,606,497 | +19.7% | 3.38 | 5,214,392 |
| 2026-04-30 | 14,709,273 | +6.2% | 9.30 | 1,581,263 |
| 2026-04-15 | 13,855,201 | +0.7% | 6.97 | 1,988,756 |
| 2026-03-31 | 13,756,534 | +37.0% | 4.66 | 2,950,831 |
| 2026-03-13 | 10,037,946 | -11.0% | 5.28 | 1,900,481 |
| 2026-02-27 | 11,279,030 | -1.8% | 4.40 | 2,563,846 |
| 2026-02-13 | 11,489,389 | -1.8% | 5.28 | 2,178,016 |
| 2026-01-30 | 11,703,014 | -1.6% | 4.76 | 2,459,116 |
| 2026-01-15 | 11,887,857 | +7.9% | 4.22 | 2,819,796 |
| 2025-12-31 | 11,015,687 | +23.4% | 2.33 | 4,718,921 |
| 2025-12-15 | 8,927,430 | -9.5% | 3.75 | 2,382,751 |
| 2025-11-28 | 9,866,791 | +10.5% | 2.82 | 3,498,565 |
| 2025-11-14 | 8,927,374 | +11.1% | 4.30 | 2,074,508 |
| 2025-10-31 | 8,033,501 | -15.3% | 3.52 | 2,281,258 |
| 2025-10-15 | 9,481,459 | -11.6% | 4.95 | 1,915,903 |
| 2025-09-30 | 10,727,695 | +1.4% | 4.69 | 2,288,187 |
import finzdata as yf
yf.Ticker("INSM").short_interest # every report since 2017
yf.Client().short_interest(["INSM"], start="2018-01-01")Healthcare short interest · INSM price history · Who owns INSM · All short interest