DOSSIER · 13F Holders · Q2 2026
CENX 2.75 05/01/28

Century Aluminum Co.

14 institutions still hold Century Aluminum Co. as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 156431AQ1·14 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$202M
visible holders
Holders
14
filers reporting
Concentration
42.53%
Context Capital Management, LLC #1
top holder share
AI Holders Summary · Q2 2026

14 institutions reported CENX 2.75 05/01/28 in Q2 2026. Context Capital Management, LLC leads at 42.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Context Capital Management, LLC
CIK 0001301396
$86M34.8M1.67%Q2 2026
02
D. E. Shaw & Co., Inc.
CIK 0001009207
$29M13.5M0.02%Q4 2025
03
READYSTATE ASSET MANAGEMENT LP
CIK 0001900923
$25M12.1M1.03%Q4 2025
04
ABSOLUTE INVESTMENT ADVISERS, LLC
CIK 0001316187
$17M6.9M1.66%Q2 2026
05
BANK OF MONTREAL /CAN/
CIK 0000927971
$12M3.8M0.00%Q1 2026
06
WELLS FARGO & COMPANY/MN
CIK 0000072971
$11M4.2M0.00%Q1 2026
07
LORD, ABBETT & CO. LLC
CIK 0000728100
$9M2.8M0.03%Q1 2026
08
SSI INVESTMENT MANAGEMENT LLC
CIK 0000938487
$6M1.9M0.41%Q1 2026
09
FMR LLC
CIK 0000315066
$4M1.3M0.00%Q1 2026
10
AGF MANAGEMENT LTD
CIK 0001003518
$2M700K0.01%Q1 2026
11
Purpose Unlimited Inc.
CIK 0002115120
$787K250K0.03%Q1 2026
12
Warberg Asset Management LLC
CIK 0001597506
$589K188K0.10%Q1 2026
13
Sonora Investment Management Group, LLC
CIK 0001907552
$58K35K0.00%Q3 2025
14
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025