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Equibles

Soapstone Management L.P.

Position in CSTM — Constellium SE

CIK 1726948 BETHESDA, MD
Back to CSTM Full portfolio

Position in CSTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$6,374,000
-$13,290,000 QoQ
Shares Held
200,000
-75.0% QoQ
Ownership
0.147%
of shares outstanding
% of Portfolio
4.64%
of 13F equity value
Holder Rank
#82
of 386 holders
Holding Since
Mar 2021
22 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, 2026

Soapstone Management L.P. holds $6,374,000 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 		200,000 $6,374,000

All Filings in CSTM

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,374,000 200,000
2026-03-31 $19,664,000 800,000
2025-12-31 $25,447,500 1,350,000
2025-09-30 $24,836,193 1,669,099
2025-06-30 $23,628,234 1,776,559
2025-03-31 $15,913,937 1,577,199
2024-12-31 $15,815,358 1,539,957
2024-09-30 $14,552,700 895,000
2024-06-30 $13,500,803 716,223
2024-03-31 $20,451,750 925,000
2023-12-31 $15,968,000 800,000
2023-09-30 $14,560,000 800,000
2023-06-30 $14,620,000 850,000
2023-03-31 $12,224,000 800,000
2022-12-31 $9,464,000 800,000
2022-09-30 $8,112,000 800,000
2022-06-30 $10,568,000 800,000
2022-03-31 $13,500,000 750,000
2021-12-31 $13,432,500 750,000
2021-09-30 $11,329,635 603,282
2021-06-30 $11,370,000 600,000
2021-03-31 $2,174,482 147,924