CENXCentury Aluminum Company

$36.76+33% 1Y

Who owns CENX

409 institutions reported holding CENX for 2026Q2, together 99% of the company, more than the 380 a quarter earlier.

409

Institutions reporting a position · as of 2026Q2 · up from 380 the quarter before

Shares held by institutions
104.0M

Shares held by institutions · 99% of the company · long US equity positions only, as reported on Form 13F

Reported value
$4.95B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
54%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
91
Positions exited
63
Added to
155
Reduced
108
Top 10 holdersof the company
63%
Shares sold shortsettled Sep 15, 2026
9.7M
Short interestof shares outstanding
9.3%
Days to coverat the average daily volume
6.3
Change in the short positionsince the Aug 31, 2026 count
−4.7%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2409104.0M$4.95B
2026Q1380100.9M$5.92B
2025Q432599.9M$3.92B
2025Q325496.5M$2.83B
2025Q221995.5M$1.72B
2025Q121792.4M$1.72B
2024Q422292.4M$1.68B
2024Q319655.0M$892M
2024Q219155.1M$923M
2024Q117954.4M$830M
2023Q417157.1M$693M
2023Q316152.6M$378M
2023Q215950.3M$439M
2023Q116651.8M$518M
2022Q416851.8M$424M
2022Q317350.8M$269M
Largest reported holders, 2026Q2
HolderShares% of companyValue
Glencore plc29.7M28%$1.37B
BlackRock Inc.10.3M9.9%$474M
VANGUARD GROUP INC8.3M7.9%$382M
STATE STREET CORP5.5M5.3%$255M
Invesco Ltd.2.4M2.3%$111M
Sourcerock Group LLC2.3M2.2%$104M
DIMENSIONAL FUND ADVISORS LP2.2M2.1%$102M
FMR LLC2.0M1.9%$90M
GEODE CAPITAL MANAGEMENT LLC1.8M1.8%$85M
Fisher Asset Management, LLC1.5M1.5%$71M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20269.7M9.3%6.3
Aug 31, 202610.2M9.7%5.2
Aug 14, 20269.2M8.8%3.9
Jul 31, 20269.9M9.5%5.7
Jul 15, 20269.8M9.3%5.1
Jun 30, 20269.5M9.1%3.1
Jun 15, 20268.3M7.9%4.2
May 29, 20268.0M7.7%4.4
May 15, 20268.2M7.8%4.8
Apr 30, 20268.2M7.8%6.9
Apr 15, 20268.1M7.8%4.2
Mar 31, 20267.6M7.2%2.8

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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