INSM
INSMED IncCompany with tickers: INSM
Market Cap
$23.03B
Shares Outstanding
216,752,451
CIK
1104506
CUSIP
457669307
13F Activity (30d)
24 filings
5 filers
Website
Visit website
Investor Relations
Investor relations
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
59/100
Short interest 8.6% of shares — P86
Days to cover 4.5 — P68
Short-volume trend -7.8% — P22
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-06-15 | 18,647,626 | 19,132,984 | -485,358 | 4.48 |
| 2026-05-29 | 19,132,984 | 17,606,497 | +1,526,487 | 6.11 |
| 2026-05-15 | 17,606,497 | 14,709,273 | +2,897,224 | 3.38 |
| 2026-04-30 | 14,709,273 | 13,855,201 | +854,072 | 9.30 |
| 2026-04-15 | 13,855,201 | 13,756,534 | +98,667 | 6.97 |
| 2026-03-31 | 13,756,534 | 10,037,946 | +3,718,588 | 4.66 |
| 2026-03-13 | 10,037,946 | 11,279,030 | -1,241,084 | 5.28 |
| 2026-02-27 | 11,279,030 | 11,489,389 | -210,359 | 4.40 |
| 2026-02-13 | 11,489,389 | 11,703,014 | -213,625 | 5.28 |
| 2026-01-30 | 11,703,014 | 11,887,857 | -184,843 | 4.76 |
| 2026-01-15 | 11,887,857 | 11,015,687 | +872,170 | 4.22 |
| 2025-12-31 | 11,015,687 | 8,927,430 | +2,088,257 | 2.33 |
| 2025-12-15 | 8,927,430 | 9,866,791 | -939,361 | 3.75 |
| 2025-11-28 | 9,866,791 | 8,927,374 | +939,417 | 2.82 |
| 2025-11-14 | 8,927,374 | 8,033,501 | +893,873 | 4.30 |
| 2025-10-31 | 8,033,501 | 9,481,459 | -1,447,958 | 3.52 |
| 2025-10-15 | 9,481,459 | 10,727,695 | -1,246,236 | 4.95 |
| 2025-09-30 | 10,727,695 | 10,575,467 | +152,228 | 4.69 |
| 2025-09-15 | 10,575,467 | 10,563,132 | +12,335 | 4.86 |
| 2025-08-29 | 10,563,132 | 10,496,754 | +66,378 | 4.75 |
| 2025-08-15 | 10,496,754 | 9,537,045 | +959,709 | 2.84 |
| 2025-07-31 | 9,537,045 | 9,688,399 | -151,354 | 4.32 |
| 2025-07-15 | 9,688,399 | 9,796,337 | -107,938 | 3.41 |
| 2025-06-30 | 9,796,337 | 11,650,625 | -1,854,288 | 1.45 |
Showing 1–24 of 24 settlements