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 |
|---|---|---|---|---|---|---|
| Sep 27, 2023 | Larson Michael | Director | Buy(P) | 13K | $7.90 | $103K |
| Jul 15, 2022 | Larson Michael | Director | Buy(P) | 5K | $9.78 | $49K |
| May 26, 2022 | Gates William H III | 10% Owner | Buy(P) | 13K | $10.63 | $143K |
| May 25, 2022 | Gates William H III | 10% Owner | Buy(P) | 50K | $10.57 | $534K |
| May 24, 2022 | Cascade Investment, L.L.C. | 10% Owner | Buy(P) | 44K | $10.42 | $462K |
| May 23, 2022 | Cascade Investment, L.L.C. | 10% Owner | Buy(P) | 20K | $10.28 | $204K |
| May 20, 2022 | Cascade Investment, L.L.C. | 10% Owner | Buy(P) | 21K | $10.22 | $214K |
| May 19, 2022 | Cascade Investment, L.L.C. | 10% Owner | Buy(P) | 41K | $10.22 | $422K |
| May 18, 2022 | Cascade Investment, L.L.C. | 10% Owner | Buy(P) | 10K | $10.31 | $100K |
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 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).