$CSTM
Constellium SE Class A Ordinary shares
XNYS•Materials•Secondary Smelting & Refining of Nonferrous Metals
Why is CSTM down today? It is at $29.64 (-0.10%), and our scanner flagged it 39 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment CSTM spikes, and full due diligence on CSTM — key stats, earnings, dilution and insider activity. Free.
Get free $CSTM alerts the moment volume spikes
Our scanner flagged $CSTM 39 times in the last 30 days. Create a free account to track $CSTM, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.
No card · 5 premium days · join 800+ traders
Key Stats
- Price
- $29.64
- Change today
- -0.10%
- Previous close
- $29.67
- 52-week range
- $13.06 – $36.99
- Market cap
- $4.04B
- Shares outstanding
- 136.2M
- Institutional own.
- 93.89%
- Total held
- 95.0%
- Tradeable float
- 6.8M 5% of shares · after 1% insiders + 94% institutions
- Short interest
- 6.5M ▲ +14% vs prior · as of 2026-07-15
- Short % of float
- 96.8%
- Days to cover
- 4.1d
- Avg daily volume
- 1.7M
- Sector
- Materials
- Industry
- Secondary Smelting & Refining of Nonferrous Metals
- Exchange
- XNYS
- 5m
- 0.2x
- 15m
- 0.6x
- 1hthin
- 0.5x
- 1D
- 0.0x
Get free CSTM + market alerts in your inbox
The top plays and unusual-volume catches our scanner flags, emailed to you. No account needed.
No spam. Unsubscribe anytime. Not investment advice.
Why is $CSTM moving today?
Here is the latest on CSTM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for CSTM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →Insiders
3 open-market buys2 buys, 7 sells last 3 months (25/26 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Deslarzes Jean-Christophe Director | Bought (open market) | +1K | added 3.5% | 44K | $41K at $27.24 | Aug 3, 26 |
Joerg Ingrid Officer | Sold (automatic/other) | -3K | sold 0.7% | 406K | $87K at $29.28 | Jul 10, 26 |
Ormerod John Director | Sold (automatic/other) | -8K | sold 24% | 25K | $280K at $35.01 | Jun 4, 26 |
Becker Marcus Officer | Sold (automatic/other) | -10K | sold 38% | 17K | $363K at $34.93 | May 28, 26 |
Jarrett Martin Officer | Sold (automatic/other) | -5K | sold 23% | 15K | $158K at $33.46 | May 14, 26 |
Soultz Bradley Lee Director | Bought (open market) | +3K | n/a | 3K | $85K at $33.84 | May 14, 26 |
Piquier Ludovic Officer | Sold (automatic/other) | -1K | sold 0.4% | 242K | $34K at $33.57 | May 12, 26 |
Brun Nicolas Officer | Sold (automatic/other) | -27K 0.02% of company | sold 20% | 105K | $902K at $33.85 | May 11, 26 |
Corre Stephane Officer | Sold (automatic/other) | -5K | sold 7.4% | 62K | $168K at $33.52 | May 8, 26 |
Guo Jack Q. Officer | Sold (automatic/other) | -25K 0.02% of company | sold 12% | 185K | $822K at $32.62 | May 5, 26 |
Brandjes Michiel Director | Sold (automatic/other) | -10K | sold 20% | 42K | $325K at $31.25 | May 5, 26 |
Deslarzes Jean-Christophe Director | Bought (open market) | +1K | added 3.3% | 42K | $41K at $31.13 | May 1, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$CSTM Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$CSTM Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.
CSTM stock FAQ
Why is $CSTM moving today?
Here is the latest on CSTM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for CSTM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the CSTM stock price today?
CSTM last traded at $29.64, down 0.10% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live CSTM alerts?
The CSTM Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged CSTM 39 times in the last 30 days.
What exchange is CSTM on?
CSTM (Constellium SE Class A Ordinary shares) trades on XNYS, with a market cap of about $4.04B in the SECONDARY SMELTING & REFINING OF NONFERROUS METALS sector.
Is CSTM good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge CSTM for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.