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| Date | Event | What happened / filer | Source |
|---|---|---|---|
| 2026-08-05 | 8-K 2.02 | Results of operations and financial condition (earnings)earnings history (EARN) → | sec.gov ↗ |
| 2026-07-15 | 8-K 1.04 | Mine safety — reporting of shutdowns | sec.gov ↗ |
| 2026-07-07 | 13G/A | Schedule 13G amendment — ≥5% beneficial owner (passive) · by Neuberger Berman Group LLC | sec.gov ↗ |
| 2026-06-22 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
| 2026-06-22 | 8-K 1.01 | Entry into a material definitive agreement | sec.gov ↗ |
| 2026-06-05 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
| 2026-05-15 | 8-K 5.07 | Submission of matters to a vote of security holders | sec.gov ↗ |
| 2026-04-30 | 8-K 2.02 | Results of operations and financial condition (earnings)earnings history (EARN) → | sec.gov ↗ |
| 2026-04-29 | 13G | Schedule 13G filed — ≥5% beneficial owner (passive) · by VANGUARD CAPITAL MANAGEMENT LLC | sec.gov ↗ |
| 2026-04-28 | 13G | Schedule 13G filed — ≥5% beneficial owner (passive) · by VANGUARD PORTFOLIO MANAGEMENT LLC | sec.gov ↗ |
| 2026-04-01 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
| 2026-03-26 | 13G/A | Schedule 13G amendment — ≥5% beneficial owner (passive) · by VANGUARD GROUP INC | sec.gov ↗ |
| 2026-02-26 | 8-K 5.02 | Departure/election of directors or officers; compensation | sec.gov ↗ |
| 2026-02-26 | 8-K 2.02 | Results of operations and financial condition (earnings)earnings history (EARN) → | sec.gov ↗ |
| 2026-02-24 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
| 2026-02-24 | 8-K 2.02 | Results of operations and financial condition (earnings)earnings history (EARN) → | sec.gov ↗ |
| 2026-02-24 | 8-K 1.01 | Entry into a material definitive agreement | sec.gov ↗ |
| 2025-12-16 | 8-K 1.04 | Mine safety — reporting of shutdowns | sec.gov ↗ |
| 2025-11-10 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
| 2025-10-30 | 8-K 2.02 | Results of operations and financial condition (earnings)earnings history (EARN) → | sec.gov ↗ |
| 2025-09-12 | 8-K 7.01 | Regulation FD disclosure | sec.gov ↗ |
Source: SEC EDGAR (public domain) · history starts 2025-09-12
Every row is a filed document, checked against its EDGAR index.