Position in CSTM
as of Jun 30, 2026
· filed Jul 14, 2026
Position Value
$5,475,520
+$760,167 QoQ
Shares Held
171,808
-10.4% QoQ
Ownership
0.126%
of shares outstanding
% of Portfolio
4.12%
of 13F equity value
Holder Rank
#6
of 71 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CSTM Over Time
Shares Held
Position Value (USD)
Position in Aluminum
Basic Materials · as of Jun 30, 2026Rockingstone Advisors LLC holds $5,475,520 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
|
171,808 | $5,475,520 |
All Filings in CSTM
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15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,475,520 | 171,808 | Shares | Sole | 2026-07-14 | |
| 2026-03-31 | $4,715,353 | 191,837 | Shares | Sole | 2026-04-09 | |
| 2025-12-31 | $4,132,428 | 219,227 | Shares | Sole | 2026-01-28 | |
| 2025-09-30 | $3,195,658 | 214,762 | Shares | Sole | 2025-10-09 | |
| 2025-06-30 | $2,839,244 | 213,477 | Shares | Sole | 2025-07-22 | |
| 2025-03-31 | $2,820,780 | 279,562 | Shares | Sole | 2025-04-15 | |
| 2024-12-31 | $2,576,917 | 250,917 | Shares | Sole | 2025-01-14 | |
| 2024-09-30 | $2,755,257 | 169,450 | Shares | Sole | 2024-10-08 | |
| 2024-06-30 | $3,158,977 | 167,585 | Shares | Sole | 2024-07-17 | |
| 2024-03-31 | $3,701,125 | 167,396 | Shares | Sole | 2024-07-09 | |
| 2023-12-31 | $3,328,649 | 166,766 | Shares | Sole | 2024-07-09 | |
| 2023-09-30 | $2,939,682 | 161,521 | Shares | Sole | 2024-07-09 | |
| 2023-06-30 | $2,781,171 | 161,696 | Shares | Sole | 2024-07-09 | |
| 2023-03-31 | $2,467,506 | 161,486 | Shares | Sole | 2024-07-09 | |
| 2022-12-31 | $1,701,047 | 143,791 | Shares | Sole | 2024-07-09 | |
| No filing history on record for this holder in this stock. | ||||||