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CONSTELLIUM SE

corporate_fare Company Profile

CONSTELLIUM SE

CSTM·NYSE·Manufacturing·CIK 0001563411

Constellium SE is a global leader in developing, manufacturing, and selling a wide range of high value-added specialty rolled and extruded aluminum products. The company serves the aerospace, space, defense, packaging, automotive, commercial transportation, and general industrial end-markets. Constellium's business model focuses on converting aluminum into semi-fabricated and, in some cases, fully-fabricated alloyed aluminum products that meet specific and performance-critical customer requirements. Its product portfolio generally achieves higher margins compared to less differentiated, more commoditized aluminum products. The company aims to manage aluminum price exposure by pricing products to include the cost of purchased metal and hedging any remaining exposure to achieve aluminum price neutrality. As of December 31, 2025, Constellium operates 24 manufacturing facilities, 3 Research and Development (R&D) centers, and 3 administrative centers. The company's U.S. assets are held by Constellium US Holdings I, LLC, a wholly owned subsidiary. Constellium SE is incorporated under the law of France with its head office in Paris, France.

CONSTELLIUM SE (NYSE:CSTM) is a publicly traded company in the Manufacturing sector. Wiseek has independently scored 19 items for CSTM at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-09-22, rated 7/10. Across its 19 most recent items scored 7 or higher, the top rating is 9/10, with 12 rated 8 or above. Recent SEC coverage for CSTM spans 10-Q, 8-K, SCHEDULE 13D/A, 144.

Recent high-impact activity:

  • Constellium May Scrap EU Recycling Expansion as Scrap Shortage Bites
  • Constellium Posts Record Q2 EBITDA of $439M, Raises Full-Year Guidance
  • Constellium Lifts 2026 Outlook on Record Q2 EBITDA, Pulls Forward 2028 Targets
  • Constellium Guides FY26 Adj EBITDA to $980M–$1.02B
  • Constellium Divests China Automotive JV Stake for Strategic Focus

Financial Snapshot

Fiscal year ended December 31, 2025
Revenue
$8.45B
Net Income
$273M
Diluted EPS
$1.92
Op. Cash Flow
$489M
Free Cash Flow
$159M
Cash & Equivalents
$120M
Total Debt
$39M
Debt / Equity
0.04×
Net Margin
3.2%
Shares Outstanding
135.42M sh
Source: 10-K · filed 2026-02-25 · accession 0001563411-26-000057

Short Interest & Short Volume

5.52 days to cover

FINRA reported short interest of 7,108,976 shares in CSTM as of the September 15, 2026 settlement, a 2.5% increase from the prior period — about 5.5 days to cover at its recent average daily volume. On October 2, 2026, 22.6% of CSTM volume reported to FINRA trade-reporting facilities was marked short.

Short interest (bi-monthly positions)7,108,976 shares as of September 15, 2026
Change vs prior period▲ 2.5%
Days to cover5.52 at avg daily volume of 1,287,808
Daily short volume (FINRA facilities)22.6% of 984,229 shares on October 2, 2026
5-day average short volume30.5%

Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.

Dilution Risk

Low risk

Filing-implied dilution signals for CSTM, detected from its recent SEC filings.

1 shelf registration

A filing-implied signal, not a realized share count. How Wiseek tracks dilution →

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$24.5 +0.10% today
52-week range · as of 2026-07-29 $13.04 – $36.99
Market cap
$3.31B
Volume
2.8M (1.8× avg)
3-mo avg 1.6M
Live data · 2026-10-04 12:29 UTC · Market closed

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feed CSTM - Latest Insights

CSTM
Sep 22, 2026, 10:59 AM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $25.45
Real-time Price: $24.50 info
Change: -$0.950 (-4%) info
Market Cap: $3.307B info
CSTM
Jul 29, 2026, 12:06 PM EDT
Filing Type: 10-Q
Importance Score:
8
Price at Filing: $27.92
Real-time Price: $24.50 info
Change: -$3.42 (-12%) info
Market Cap: $3.307B info
CSTM
Jul 29, 2026, 6:04 AM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $30.05
Real-time Price: $24.50 info
Change: -$5.55 (-18%) info
Market Cap: $3.307B info
CSTM
Jul 29, 2026, 6:01 AM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $30.04
Real-time Price: $24.50 info
Change: -$5.54 (-18%) info
Market Cap: $3.307B info
CSTM
Jun 29, 2026, 6:00 AM EDT
Source: GlobeNewswire
Importance Score:
7
Price at Filing: $33.41
Real-time Price: $24.50 info
Change: -$8.91 (-27%) info
Market Cap: $3.307B info
CSTM
May 28, 2026, 4:01 PM EDT
Filing Type: SCHEDULE 13D/A
Importance Score:
8
Price at Filing: $34.35
Real-time Price: $24.50 info
Change: -$9.85 (-29%) info
Market Cap: $3.307B info
CSTM
May 26, 2026, 7:59 PM EDT
Filing Type: 144
Importance Score:
7
Price at Filing: $34.00
Real-time Price: $24.50 info
Change: -$9.50 (-28%) info
Market Cap: $3.307B info
CSTM
May 21, 2026, 3:04 PM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $32.13
Real-time Price: $24.50 info
Change: -$7.63 (-24%) info
Market Cap: $3.307B info
CSTM
Apr 29, 2026, 1:10 PM EDT
Filing Type: 10-Q
Importance Score:
8
Price at Filing: $32.21
Real-time Price: $24.50 info
Change: -$7.71 (-24%) info
Market Cap: $3.307B info
CSTM
Apr 29, 2026, 6:09 AM EDT
Source: Reuters
Importance Score:
9
Price at Filing: $33.66
Real-time Price: $24.50 info
Change: -$9.16 (-27%) info
Market Cap: $3.307B info
CSTM
Apr 29, 2026, 6:07 AM EDT
Filing Type: 8-K
Importance Score:
9
Price at Filing: $32.97
Real-time Price: $24.50 info
Change: -$8.47 (-26%) info
Market Cap: $3.307B info
CSTM
Apr 21, 2026, 6:01 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $30.80
Real-time Price: $24.50 info
Change: -$6.30 (-20%) info
Market Cap: $3.307B info
CSTM
Apr 10, 2026, 8:37 AM EDT
Filing Type: DEFA14A
Importance Score:
7
Price at Filing: $30.00
Real-time Price: $24.50 info
Change: -$5.50 (-18%) info
Market Cap: $3.307B info
CSTM
Apr 10, 2026, 8:34 AM EDT
Filing Type: DEF 14A
Importance Score:
7
Price at Filing: $30.00
Real-time Price: $24.50 info
Change: -$5.50 (-18%) info
Market Cap: $3.307B info
CSTM
Mar 30, 2026, 9:24 AM EDT
Filing Type: PRE 14A
Importance Score:
8
Price at Filing: $24.10
Real-time Price: $24.50 info
Change: +$0.400 (+2%) info
Market Cap: $3.307B info
CSTM
Mar 12, 2026, 5:04 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $26.00
Real-time Price: $24.50 info
Change: -$1.50 (-6%) info
Market Cap: $3.307B info
CSTM
Mar 12, 2026, 4:30 PM EDT
Source: GlobeNewswire
Importance Score:
8
Price at Filing: $24.76
Real-time Price: $24.50 info
Change: -$0.260 (-1%) info
Market Cap: $3.307B info
CSTM
Feb 25, 2026, 4:40 PM EST
Filing Type: 10-K
Importance Score:
8
Price at Filing: $26.10
Real-time Price: $24.50 info
Change: -$1.60 (-6%) info
Market Cap: $3.307B info
CSTM
Feb 18, 2026, 6:06 AM EST
Filing Type: 8-K
Importance Score:
8
Price at Filing: $24.46
Real-time Price: $24.50 info
Change: +$0.040 (+0.16%) info
Market Cap: $3.307B info
Research tools: Filing Impact Index Dilution Tracker Split Calendar Open Datasets