AMSC
American Superconductor Corp /De/Company with tickers: AMSC
CIK
880807
CUSIP
030111207
Shares Outstanding
47,694,445
Website
https://www.amsc.com
Investor Relations
https://www.amsc.com/investors/
13F Activity (30d)
12 filings
9 filers
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 |
|---|---|---|---|---|
| 2026-05-04 | 943,447 | 1,918,838 | 2,862,285 | 54.7% |
| 2026-04-27 | 1,730,465 | 2,725,036 | 4,455,501 | 57.9% |
| 2026-04-20 | 1,847,080 | 2,846,274 | 4,693,354 | 51.9% |
| 2026-04-13 | 1,452,926 | 1,248,607 | 2,701,533 | 61.3% |
| 2026-04-06 | 816,096 | 1,177,302 | 1,993,398 | 44.5% |
| 2026-03-30 | 860,729 | 1,027,914 | 1,888,643 | 49.9% |
| 2026-03-23 | 1,356,934 | 1,122,016 | 2,478,950 | 41.3% |
| 2026-03-16 | 559,116 | 711,545 | 1,270,661 | 36.2% |
| 2026-03-09 | 949,668 | 928,602 | 1,878,270 | 41.5% |
| 2026-03-02 | 809,320 | 906,557 | 1,715,877 | 41.0% |
| 2026-02-23 | 670,393 | 1,065,923 | 1,736,316 | 46.4% |
| 2026-02-16 | 1,013,953 | 1,626,010 | 2,639,963 | 47.2% |
| 2026-02-09 | 2,363,356 | 2,128,275 | 4,491,631 | 44.5% |
| 2026-02-02 | 2,309,665 | 1,751,159 | 4,060,824 | 40.7% |
| 2026-01-26 | 779,207 | 672,749 | 1,451,956 | 42.0% |
| 2026-01-19 | 658,453 | 907,131 | 1,565,584 | 44.4% |
| 2026-01-12 | 669,724 | 737,708 | 1,407,432 | 40.8% |
| 2026-01-05 | 970,783 | 957,594 | 1,928,377 | 42.9% |
| 2025-12-29 | 902,336 | 524,913 | 1,427,249 | 37.6% |
| 2025-12-22 | 395,858 | 524,175 | 920,033 | 40.5% |
Showing 1–20 of 20 weeks