The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 3, 2026 | Deslarzes Jean-Christophe | Director | Buy(P) | 1K | $27.24 | $41K |
| Jul 10, 2026 | Joerg Ingrid | CEO, Director | Tax withholding(F) | 3K | $29.28 | $87K |
| Jun 4, 2026 | Ormerod John | Director | Sell(S) | 8K | $35.01 | $280K |
| May 28, 2026 | Becker Marcus | SVP CPO | Sell(S) | 10K | $34.93 | $363K |
| May 14, 2026 | Soultz Bradley Lee | Director | Buy(P) | 3K | $33.84 | $85K |
| May 14, 2026 | Jarrett Martin | SVP Chief Innovation Officer | Sell(S) | 5K | $33.46 | $158K |
| May 12, 2026 | Piquier Ludovic | SVP Manuf Excellence & CTO | Sell(S) | 1K | $33.57 | $34K |
| May 11, 2026 | Brun Nicolas | SVP PA, Comm & Sust | Sell(S) | 27K | $33.85 | $902K |
| May 8, 2026 | Corre Stephane | President, AS&I | Sell(S) | 5K | $33.52 | $168K |
| May 5, 2026 | Brandjes Michiel | Director | Sell(S) | 10K | $31.25 | $325K |
| May 5, 2026 | Guo Jack Q. | EVP & CFO | Sell(S) | 25K | $32.62 | $822K |
| May 1, 2026 | Deslarzes Jean-Christophe | Director | Buy(P) | 1K | $31.13 | $41K |
| May 1, 2026 | Corre Stephane | President, AS&I | Sell(S) | 5K | $32.04 | $160K |
| May 1, 2026 | Jurkovic Philip Ryan | SVP & CHRO | Sell(S) | 49K | $32.01 | $1.6M |
| May 1, 2026 | Hoffmann Philippe | President, A&T | Sell(S) | 50K | $31.92 | $1.6M |
| Mar 16, 2026 | Becker Marcus | SVP CPO | Sell(S) | 10K | $25.09 | $251K |
| Mar 12, 2026 | Weiler Wiebke | Director | Grant(A) | 625 | — | $0 |
| Mar 12, 2026 | Guo Jack Q. | EVP & CFO | Grant(A) | 20K | — | $0 |
| Mar 12, 2026 | Corre Stephane | President, AS&I | Grant(A) | 7K | — | $0 |
| Mar 12, 2026 | Hoffmann Philippe | President, A&T | Grant(A) | 12K | — | $0 |
| Mar 12, 2026 | Schild Niklaus | SVP CIO & CDO | Grant(A) | 3K | — | $0 |
| Mar 12, 2026 | Perkins Matthew B. | President, P&ARP | Grant(A) | 10K | — | $0 |
| Mar 12, 2026 | Joerg Ingrid | CEO, Director | Grant(A) | 31K | — | $0 |
| Mar 12, 2026 | Becker Marcus | SVP CPO | Grant(A) | 4K | — | $0 |
| Mar 12, 2026 | Piquier Ludovic | SVP Manuf Excellence & CTO | Grant(A) | 5K | — | $0 |
| Mar 12, 2026 | Jurkovic Philip Ryan | SVP & CHRO | Grant(A) | 10K | — | $0 |
| Mar 12, 2026 | Brun Nicolas | SVP PA, Comm & Sust | Grant(A) | 4K | — | $0 |
| Mar 12, 2026 | Walters Stephen Charles | SVP GC & Secretary | Grant(A) | 6K | — | $0 |
| Mar 10, 2026 | Jurkovic Philip Ryan | SVP & CHRO | Sell(S) | 30K | $25.87 | $774K |
| Mar 10, 2026 | Guo Jack Q. | EVP & CFO | Sell(S) | 42K | $25.87 | $1.1M |
| Mar 10, 2026 | Becker Marcus | SVP CPO | Sell(S) | 1K | $25.87 | $29K |
| Mar 10, 2026 | Hoffmann Philippe | President, A&T | Sell(S) | 5K | $25.87 | $122K |
| Mar 10, 2026 | Corre Stephane | President, AS&I | Sell(S) | 2K | $25.89 | $39K |
| Mar 10, 2026 | Joerg Ingrid | CEO, Director | Sell(S) | 5K | $25.87 | $119K |
| Mar 9, 2026 | Schild Niklaus | SVP CIO & CDO | Grant(A) | 5K | — | $0 |
| Mar 9, 2026 | Piquier Ludovic | SVP Manuf Excellence & CTO | Grant(A) | 30K | — | $0 |
| Mar 9, 2026 | Jurkovic Philip Ryan | SVP & CHRO | Grant(A) | 59K | — | $0 |
| Mar 9, 2026 | Guo Jack Q. | EVP & CFO | Grant(A) | 76K | — | $0 |
| Mar 9, 2026 | Becker Marcus | SVP CPO | Buy(P) | 15K | — | $0 |
| Mar 9, 2026 | Hoffmann Philippe | President, A&T | Buy(P) | 71K | — | $0 |
| Mar 9, 2026 | Joerg Ingrid | CEO, Director | Grant(A) | 71K | — | $0 |
| Mar 9, 2026 | Brun Nicolas | SVP PA, Comm & Sust | Sell(S) | 18K | $24.67 | $437K |
| Mar 9, 2026 | Brun Nicolas | SVP PA, Comm & Sust | Grant(A) | 24K | — | $0 |
| Mar 9, 2026 | Corre Stephane | President, AS&I | Buy(P) | 8K | — | $0 |
| Mar 4, 2026 | Hoffmann Philippe | President, A&T | Sell(S) | 50K | $26.03 | $1.3M |
| Mar 4, 2026 | Hoffmann Philippe | President, A&T | Sell(S) | 30K | $27.14 | $814K |
| Mar 2, 2026 | Deslarzes Jean-Christophe | Director | Buy(P) | 2K | $24.77 | $41K |
| Feb 27, 2026 | Corre Stephane | President, AS&I | Sell(S) | 3K | $24.69 | $74K |
| Feb 26, 2026 | Boccon-Gibod Isabelle | Director | Sell(S) | 10K | $25.77 | $258K |
| Feb 25, 2026 | Corre Stephane | President, AS&I | Sell(S) | 3K | $25.71 | $82K |
| Feb 23, 2026 | Walters Stephen Charles | SVP GC & Secretary | Sell(S) | 2K | $25.39 | $38K |
| Feb 20, 2026 | Becker Marcus | SVP CPO | Sell(S) | 16K | $25.58 | $398K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2019-12-30 → 2026-08-06. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for CSTM