INSM · INSMED Inc · Off Exchange
$114.14
-1.49 (-1.29%)
At close · Sep 30
Return incl. dividend (before tax)
Market Cap
$25.73B
Shares
218.38M
Volume · Sep 30
2.87M
Avg daily vol (3M)
2.45M
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-08-24 | 2,423,601 | 2,086,646 | 4,510,247 | 51.7% |
| 2026-08-17 | 2,288,816 | 970,745 | 3,259,561 | 43.2% |
| 2026-08-10 | 4,249,133 | 1,467,953 | 5,717,086 | 46.3% |
| 2026-08-03 | 10,401,728 | 3,002,325 | 13,404,053 | 45.2% |
| 2026-07-27 | 4,436,816 | 1,225,469 | 5,662,285 | 46.0% |
| 2026-07-20 | 3,507,473 | 803,781 | 4,311,254 | 43.6% |
| 2026-07-13 | 3,774,694 | 1,078,522 | 4,853,216 | 42.0% |
| 2026-07-06 | 4,225,468 | 1,920,551 | 6,146,019 | 47.9% |
| 2026-06-29 | 3,850,639 | 1,133,844 | 4,984,483 | 44.2% |
| 2026-06-22 | 6,480,944 | 3,364,173 | 9,845,117 | 44.2% |
| 2026-06-15 | 6,156,776 | 9,922,389 | 16,079,165 | 47.2% |
| 2026-06-08 | 8,804,944 | 2,731,320 | 11,536,264 | 47.5% |
| 2026-06-01 | 6,089,142 | 1,827,221 | 7,916,363 | 42.7% |
| 2026-05-25 | 3,413,733 | 1,817,364 | 5,231,097 | 43.1% |
| 2026-05-18 | 5,242,343 | 1,390,982 | 6,633,325 | 40.0% |
| 2026-05-11 | 9,920,007 | 4,171,381 | 14,091,388 | 48.0% |
| 2026-05-04 | 9,814,165 | 2,273,746 | 12,087,911 | 43.6% |
| 2026-04-27 | 2,214,643 | 863,403 | 3,078,046 | 44.9% |
| 2026-04-20 | 2,762,941 | 785,736 | 3,548,677 | 43.6% |
| 2026-04-13 | 3,069,515 | 1,013,700 | 4,083,215 | 41.5% |
| 2026-04-06 | 2,987,770 | 990,305 | 3,978,075 | 40.0% |
| 2026-03-30 | 3,925,088 | 1,525,143 | 5,450,231 | 41.0% |
| 2026-03-23 | 4,926,404 | 1,200,245 | 6,126,649 | 41.2% |
| 2026-03-16 | 3,617,025 | 1,476,835 | 5,093,860 | 40.5% |
| 2026-03-09 | 2,018,719 | 807,674 | 2,826,393 | 35.9% |
| 2026-03-02 | 3,392,604 | 1,101,110 | 4,493,714 | 39.5% |
| 2026-02-23 | 3,388,243 | 1,433,984 | 4,822,227 | 39.8% |
| 2026-02-16 | 4,516,284 | 837,488 | 5,353,772 | 41.4% |
| 2026-02-09 | 2,854,351 | 831,483 | 3,685,834 | 34.4% |
| 2026-02-02 | 3,446,299 | 1,378,390 | 4,824,689 | 42.3% |
| 2026-01-26 | 2,912,381 | 1,485,959 | 4,398,340 | 42.4% |
| 2026-01-19 | 3,205,755 | 1,423,934 | 4,629,689 | 42.8% |
| 2026-01-12 | 4,538,461 | 1,793,341 | 6,331,802 | 38.4% |
| 2026-01-05 | 4,803,551 | 1,255,099 | 6,058,650 | 42.3% |
| 2025-12-29 | 2,192,563 | 881,373 | 3,073,936 | 39.7% |
| 2025-12-22 | 1,833,442 | 795,128 | 2,628,570 | 42.8% |
| 2025-12-15 | 8,632,779 | 5,525,411 | 14,158,190 | 31.6% |
| 2025-12-08 | 3,832,821 | 1,143,078 | 4,975,899 | 39.8% |
| 2025-12-01 | 2,736,999 | 1,162,982 | 3,899,981 | 39.7% |
| 2025-11-24 | 2,688,641 | 4,739,510 | 7,428,151 | 35.4% |
| 2025-11-17 | 3,360,396 | 1,242,011 | 4,602,407 | 42.5% |
| 2025-11-10 | 3,248,647 | 1,113,746 | 4,362,393 | 42.9% |
| 2025-11-03 | 3,730,129 | 986,058 | 4,716,187 | 43.6% |
| 2025-10-27 | 5,831,728 | 1,227,232 | 7,058,960 | 46.1% |
| 2025-10-20 | 2,997,946 | 1,104,627 | 4,102,573 | 45.1% |
| 2025-10-13 | 2,838,835 | 1,011,427 | 3,850,262 | 48.0% |
| 2025-10-06 | 2,751,816 | 804,148 | 3,555,964 | 40.6% |
Showing 1–47 of 47 weeks
Key facts
CIK
1104506
CUSIP
457669307
13F (30d)
16 filings
13 filers
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