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Equibles

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in CENX — Century Aluminum Co

CIK 912938 Boston, MA
Back to CENX Full portfolio

Position in CENX

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$20,991,784
+$20,258,336 QoQ
Shares Held
456,244
+3550.8% QoQ
Ownership
0.461%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#37
of 415 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 63% Shared 30% None 8%

Common Shares in CENX Over Time

Shares Held

Position Value (USD)

Position in Aluminum

Basic Materials · as of Jun 30, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $92,146,109 across 3 Aluminum names. CENX ranks #2 (22.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AA
Alcoa Corp
 1,150,120 $59,967,255
2 CENX
Century Aluminum Co
This page 		456,244 $20,991,784
3 CSTM
Constellium SE
 351,022 $11,187,070

All Filings in CENX

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $20,991,784 456,244
2026-03-31 $733,448 12,497