Century Aluminum Company (CENX)Merewether Investment Management, LP opened a new position $30.2M

515K

Shares reported

0.58%

Disclosed portfolio weight

$30.2M

Reported value

Holdings as of

Mar 31, 2026

Filed

May 15, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Mar 16, 2026InsiderCEO sold ~$8.32M of CENX shares in the open market
2. Mar 25, 2026InsiderCFO sold ~$845K of CENX shares in the open market
3. May 7, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Aug 6, 2026Company filing · Form 8-K · ResultsReported its results

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Century Aluminum Company

For Century Aluminum Company, OQRO holds 3 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CENX page.

How this filing works

• SEC Form 13F

Other disclosures at Century Aluminum Company

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 5, 2026
• SEC Form 13F-HRApr 28, 2026

Everything OQRO holds on this company is on its CENX page.