Position in CENX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$5,577,838
New position
Shares Held
95,039
first reported quarter
Ownership
0.096%
of shares outstanding
% of Portfolio
0.30%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Position in Aluminum
Basic Materials · as of Mar 31, 2026Portolan Capital Management, LLC holds $5,577,838 across 1 Aluminum name. CENX ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CENX |
Century Aluminum Co
This page
|
95,039 | $5,577,838 |
All Filings in CENX
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1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,577,838 | 95,039 | Shares | Sole | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||