Position in CSTM
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$22,566,652
New position
Shares Held
918,090
first reported quarter
Ownership
0.674%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority
Sole 75%
Shared 0%
None 25%
Position in Aluminum
Basic Materials · as of Mar 31, 2026WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $22,566,652 across 1 Aluminum name. CSTM ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CSTM |
Constellium SE
This page
|
918,090 | $22,566,652 |
All Filings in CSTM
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1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $22,566,652 | 918,090 | Shares | Sole | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||