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Constellium SE (CSTM)

Constellium SE at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Constellium SE (CSTM) is a Aluminum company based in FR with a market capitalization of $4.6B. Revenue grew 19.3% year-over-year and the company generated $159M in free cash flow. This page tracks CSTM's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

FR · 12K employees · IPO May 23, 2013

Valuation

Valuation & price

$35.21 · as of May 26, 2026 · -2.6% vs 52w high

21.5

P/E ratio

Latest-FY diluted EPS

4.84

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$35.86$24.47$13.08Jul 25Dec 25Jul 26Jul 7, 25$14.13Jul 9, 25$14.32Jul 11, 25$14.11Jul 15, 25$13.64Jul 17, 25$13.70Jul 21, 25$13.92Jul 23, 25$14.15Jul 25, 25$13.67Jul 29, 25$14.68Jul 31, 25$13.71Aug 4, 25$13.22Aug 6, 25$13.40Aug 11, 25$13.08Aug 13, 25$14.24Aug 15, 25$14.44Aug 19, 25$14.62Aug 21, 25$14.24Aug 25, 25$14.30Aug 27, 25$14.60Aug 29, 25$14.49Sep 3, 25$13.83Sep 5, 25$14.59Sep 9, 25$13.73Sep 11, 25$14.98Sep 16, 25$14.98Sep 18, 25$16.36Sep 22, 25$15.26Sep 24, 25$14.94Sep 26, 25$15.33Sep 30, 25$14.88Oct 2, 25$15.44Oct 6, 25$15.14Oct 8, 25$15.11Oct 10, 25$14.41Oct 14, 25$15.32Oct 16, 25$15.49Oct 21, 25$16.07Oct 23, 25$16.70Oct 27, 25$16.85Oct 29, 25$16.27Oct 31, 25$15.73Nov 4, 25$15.93Nov 6, 25$15.43Nov 10, 25$16.22Nov 12, 25$16.06Nov 14, 25$15.42Nov 18, 25$14.75Nov 20, 25$15.14Nov 25, 25$16.10Nov 28, 25$16.81Dec 2, 25$16.89Dec 4, 25$18.18Dec 8, 25$17.50Dec 10, 25$18.14Dec 12, 25$18.35Dec 16, 25$18.51Dec 18, 25$18.22Dec 22, 25$18.96Dec 24, 25$18.90Dec 29, 25$18.91Jan 2, 26$19.77Jan 6, 26$19.90Jan 8, 26$20.25Jan 12, 26$21.89Jan 14, 26$22.77Jan 16, 26$22.16Jan 21, 26$23.01Jan 23, 26$22.94Jan 27, 26$22.69Jan 29, 26$23.17Feb 2, 26$23.70Feb 4, 26$24.30Feb 9, 26$24.70Feb 11, 26$24.70Feb 13, 26$23.29Feb 18, 26$25.64Feb 20, 26$25.44Feb 24, 26$24.75Feb 26, 26$25.95Mar 2, 26$26.06Mar 4, 26$26.63Mar 6, 26$24.75Mar 10, 26$25.49Mar 12, 26$24.59Mar 17, 26$25.17Mar 19, 26$23.72Mar 23, 26$23.83Mar 25, 26$25.51Mar 27, 26$23.37Mar 31, 26$24.58Apr 2, 26$27.62Apr 7, 26$27.12Apr 9, 26$29.47Apr 13, 26$30.40Apr 15, 26$29.65Apr 17, 26$29.58Apr 22, 26$30.81Apr 24, 26$31.38Apr 28, 26$31.08Apr 30, 26$31.28May 4, 26$30.84May 6, 26$33.33May 8, 26$33.88May 12, 26$33.31May 14, 26$33.50May 18, 26$32.25May 20, 26$32.13May 22, 26$33.24May 28, 26$34.35Jun 1, 26$34.69Jun 3, 26$35.86Jun 5, 26$33.89Jun 9, 26$34.00Jun 11, 26$34.75Jun 15, 26$34.71Jun 17, 26$33.68Jun 22, 26$34.60Jun 24, 26$32.66Jun 26, 26$31.78Jul 2, 26$29.49
$13.0852-week range$36.15
Loading valuation history…

Fundamentals

Key fundamentals

$4.6B

Market cap

19.3%

Revenue growth (YoY)

10.1%

Gross margin

$159M

Free cash flow (USD)

$1.8B

Net debt

-4.0%

Share dilution

2/6

Graham criteria passed

Defensive-investor screen

Basic Materials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$4.7BFY 2017$5.2BFY 2018$5.7BFY 2019$4.9BFY 2020$4.9BFY 2021$7.0BFY 2022$7.9BFY 2023$7.1BFY 2024$7.1BFY 2025$8.4B
$4.7B$8.4B

Free cash flow by year

2016 → 2025

FY 2016$-267.0MFY 2017$-116.0MFY 2018$-211.0MFY 2019$176.0MFY 2020$152.0MFY 2021$125.0MFY 2022$186.0MFY 2023$66.0MFY 2024$-108.2MFY 2025$159.0M
-$267M$159M

Gross margin by year

2021 → 2025

FY 202110.8%FY 202211.3%FY 202313.5%FY 202412.8%FY 202510.1%
10.8%10.1%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

2

Insider buys · 90 days

11

Insider sells · 90 days

Earnings

Last report: 10-Q filed Apr 29, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • FinancingSecurities RegistrationJun 24, 2026Filing
  • Insider sellInsider Sell $280KOrmerod John · Director · $280.1KJun 8, 2026Filing
  • Insider sellInsider Sell $363KBecker Marcus · SVP CPO · $363KJun 1, 2026Filing
  • 8-K eventAnnual General Meeting ResultsMay 21, 2026Filing
  • Insider sellInsider Sell $158KJarrett Martin · SVP Chief Innovation Officer · $157.8KMay 18, 2026Filing
  • Insider buyInsider Buy $85KSoultz Bradley Lee · Director · $84.6KMay 18, 2026Filing
  • Insider sellInsider Sell $34KPiquier Ludovic · SVP Manuf Excellence & CTO · $33.6KMay 13, 2026Filing
  • Insider sellInsider Sell $168KCorre Stephane · President, AS&I · $167.6KMay 12, 2026Filing
  • Insider sellInsider Sell $902KBrun Nicolas · SVP PA, Comm & Sust · $902.5KMay 12, 2026Filing
  • Insider sellInsider Sell $822KGuo Jack Q. · EVP & CFO · $822.1KMay 7, 2026Filing

Questions

Frequently asked questions

What is Constellium SE's market cap?

Constellium SE (CSTM) has a market capitalization of $4.6B.

What is CSTM's P/E ratio?

CSTM trades at a price-to-earnings ratio of 21.5, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is CSTM's price-to-book (P/B) ratio?

CSTM trades at 4.84 times book value per share.

Are insiders buying CSTM stock?

Yes — SEC Form 4 filings show 2 open-market insider buys and 11 sells at Constellium SE in the last 90 days.

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.