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CENX

Century Aluminum Co

Company with tickers: CENX

CIK
949157
CUSIP
156431108
Shares Outstanding
98,974,047
13F Activity (30d)
154 filings 151 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 2,303,356 1,668,856 3,972,212 49.0%
2026-04-27 986,345 808,477 1,794,822 51.5%
2026-04-20 1,525,699 761,691 2,287,390 39.7%
2026-04-13 2,598,391 1,480,593 4,078,984 54.3%
2026-04-06 2,569,883 1,693,655 4,263,538 44.4%
2026-03-30 3,320,183 2,857,340 6,177,523 44.2%
2026-03-23 2,833,623 2,056,335 4,889,958 46.7%
2026-03-16 2,930,229 2,226,997 5,157,226 39.0%
2026-03-09 3,157,016 2,121,261 5,278,277 43.4%
2026-03-02 3,955,615 1,771,841 5,727,456 43.6%
2026-02-23 3,227,268 2,351,254 5,578,522 45.9%
2026-02-16 3,623,366 2,343,727 5,967,093 46.5%
2026-02-09 3,904,368 1,783,079 5,687,447 44.9%
2026-02-02 3,161,922 2,237,112 5,399,034 46.9%
2026-01-26 2,901,294 2,936,633 5,837,927 45.5%
2026-01-19 1,857,723 975,112 2,832,835 38.0%
2026-01-12 2,754,366 2,272,818 5,027,184 45.5%
2026-01-05 3,408,144 1,930,901 5,339,045 41.6%
2025-12-29 1,232,593 1,079,469 2,312,062 41.7%
2025-12-22 1,463,501 1,157,054 2,620,555 42.1%
2025-12-15 1,871,039 2,087,085 3,958,124 39.8%
2025-12-08 2,043,874 3,582,011 5,625,885 56.3%
2025-12-01 1,725,227 1,866,913 3,592,140 43.2%
2025-11-24 1,387,890 1,868,074 3,255,964 49.0%
2025-11-17 2,876,049 1,453,763 4,329,812 38.2%
2025-11-10 6,055,907 3,630,823 9,686,730 42.2%
2025-11-03 2,885,182 2,264,555 5,149,737 46.3%
2025-10-27 1,827,491 1,881,546 3,709,037 42.8%
2025-10-20 3,839,939 3,091,319 6,931,258 46.6%
2025-10-13 2,624,976 2,178,680 4,803,656 49.8%
2025-10-06 3,203,109 2,844,758 6,047,867 49.0%
2025-09-29 2,040,959 3,214,327 5,255,286 47.1%
2025-09-22 2,285,634 2,130,266 4,415,900 44.9%
2025-09-15 2,338,800 1,803,951 4,142,751 40.4%
2025-09-08 2,426,732 2,174,089 4,600,821 45.0%
2025-09-01 1,476,658 1,165,390 2,642,048 47.9%
2025-08-25 1,479,721 1,504,761 2,984,482 49.2%
2025-08-18 1,509,767 753,444 2,263,211 37.6%
2025-08-11 1,980,037 1,112,246 3,092,283 41.6%
2025-08-04 2,505,847 997,894 3,503,741 42.1%
2025-07-28 2,423,259 982,173 3,405,432 41.9%
2025-07-21 2,722,765 1,995,519 4,718,284 45.2%
2025-07-14 1,384,874 647,792 2,032,666 34.4%
2025-07-07 2,285,282 896,148 3,181,430 37.0%
2025-06-30 962,866 536,989 1,499,855 34.6%
2025-06-23 1,738,495 1,129,456 2,867,951 37.7%
2025-06-16 1,606,334 617,685 2,224,019 38.2%
Showing 1–47 of 47 weeks