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 |
|---|---|---|---|---|---|---|
| Jul 15, 2021 | Delaney Peter B | Director | Grant(A) | 1K | $16.48 | $19K |
| Jul 15, 2021 | Boswell Robert S | Director | Grant(A) | 683 | $16.48 | $11K |
| Apr 15, 2021 | Kelley Robert | Director | Grant(A) | 2K | $16.83 | $26K |
| Apr 15, 2021 | Delaney Peter B | Director | Grant(A) | 1K | $16.83 | $19K |
| Apr 15, 2021 | Boswell Robert S | Director | Grant(A) | 669 | $16.83 | $11K |
| Mar 11, 2021 | Lindeman Steven W | Sr Vice Pres, EHS and Eng | Sell(S) | 36K | $19.34 | $687K |
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 2021-03-29 → 2026-07-11. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).