The insider selling cluster is too small relative to market cap to warrant action. Monitor for any material corporate events (earnings, guidance, M&A) that could explain the sales, but treat this as routine portfolio diversification. The cross-filing amplifier verdicts are not applicable here since the standalone impact is minimal.
Price Chart
Executive Summary
Five Constellium insiders, including the CFO and a director, sold a total of $2.25M in open-market sales over a 7-day window. The cluster is dominated by the CFO ($822K) and SVP Brun ($902K), representing 0.05% of the $4.5B market cap — a trivial proportion. The sales lack a regular pattern suggesting 10b5-1 plans, but the dollar amount is immaterial relative to company size, and insider sales are weak predictors per academic literature.
Key Financial Metrics
Key Facts
- Five insiders sold $2.25M total in open-market sales over May 5-12, 2026
- CFO Jack Q. Guo sold 25.2K shares for $822K
- SVP Nicolas Brun sold 26.7K shares for $902K
- Total sales represent only 0.05% of Constellium's $4.5B market cap
- No 10b5-1 pattern detected — sales are irregular in timing and size
- Insider cluster sales are not informative per academic literature (Alldredge 2019)
Financial Impact
Total insider sales of $2.25M, or 0.05% of market cap — immaterial
Risk Factors
- CFO selling $822K could signal personal concerns about valuation, though amount is small relative to likely total holdings
- No 10b5-1 plan identified — sales are discretionary, but still within normal diversification range
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CSTM-1778708747893 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Jul 10, 2026 12w ago | Press Release | $29.28 $29.44 | ▲ +0.55% | ▼ −1.88% | $24.66 (−15.78%) |
May 26, 2026 18w ago | Press Release | $35.28 $32.81 | ▼ −7.00% | ▼ −5.05% | $24.66 (−30.10%) |
May 18, 2026 19w ago | Insider Cluster | $32.25 $34.18 | ▲ +5.98% | ▲ +4.40% | $24.66 (−23.53%) |
May 5, 2026 21w ago | Insider Cluster | $32.96 $36.07 | ▲ +9.44% | ▲ +4.48% | $24.66 (−25.18%) |
May 1, 2026 22w ago | Insider Cluster | $32.01 $34.69 | ▲ +8.37% | ▲ +3.09% | $24.66 (−22.96%) |
May 1, 2026 22w ago | Insider Cluster | $32.01 $34.69 | ▲ +8.37% | ▲ +3.09% | $24.66 (−22.96%) |
May 1, 2026 22w ago | Insider Cluster | $32.01 $34.69 | ▲ +8.37% | ▲ +3.09% | $24.66 (−22.96%) |
May 1, 2026 22w ago | Insider Cluster | $32.01 $34.69 | ▲ +8.37% | ▲ +3.09% | $24.66 (−22.96%) |
May 1, 2026 22w ago | Insider Cluster | $32.01 $34.69 | ▲ +8.37% | ▲ +3.09% | $24.66 (−22.96%) |
Apr 29, 2026 22w ago | Press Release | $32.23 $33.96 | ▲ +5.37% | ▼ −0.09% | $24.66 (−23.49%) |
US Market Status
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