Constellium N.V. (CSTM): Congress and insider trades
Who in Congress and inside the company traded CSTM, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Constellium N.V. (CSTM) is a listed stock on NYSE.
- Insiders filed 2 open market buys worth $81.8K and 13 sells worth $7.6M, the latest filed 2026-08-03 (3 August 2026).
- Across 1 scored buy, Insiders averaged -14.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell.
- Data as of 2026-09-29 (29 September 2026).
Insider trades in CSTM
as of 2026-08-03| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 3 Aug 2026 | Deslarzes Jean-Christophe | buy | 1,490 | $27.24 | $40.6K | n/a |
| 1 Jun 2026 | Becker Marcus | sell | 10,391 | $34.93 | $363K | n/a |
| 7 May 2026 | Guo Jack Q. | sell | 25,201 | $32.62 | $822K | n/a |
| 7 May 2026 | Brandjes Michiel | sell | 10,400 | $31.25 | $325K | n/a |
| 5 May 2026 | Hoffmann Philippe | sell | 50,000 | $31.92 | $1.6M | n/a |
| 4 May 2026 | Corre Stephane | sell | 5,000 | $32.04 | $160K | n/a |
| 4 May 2026 | Jurkovic Philip Ryan | sell | 48,784 | $32.01 | $1.6M | n/a |
| 1 May 2026 | Deslarzes Jean-Christophe | buy | 1,325 | $31.13 | $41.2K | -14.2% |
| 17 Mar 2026 | Becker Marcus | sell | 10,000 | $25.09 | $251K | n/a |
| 11 Mar 2026 | Brun Nicolas | sell | 17,701 | $24.67 | $437K | n/a |
| 11 Mar 2026 | Becker Marcus | sell | 1,113 | $25.87 | $28.8K | n/a |
| 11 Mar 2026 | Guo Jack Q. | sell | 41,717 | $25.87 | $1.1M | n/a |
| 11 Mar 2026 | Joerg Ingrid | sell | 4,614 | $25.87 | $119K | n/a |
| 11 Mar 2026 | Hoffmann Philippe | sell | 4,728 | $25.87 | $122K | n/a |
| 11 Mar 2026 | Jurkovic Philip Ryan | sell | 29,900 | $25.87 | $774K | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought CSTM?
0 Congress buys by 0 members and 2 insider buys are on file. The tables on this page list every one.
Did buying CSTM after a disclosure beat the market?
Across 1 scored buy, Insiders averaged -14.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.