Ownership — AMPH
US Institutional Ownership68.4%
| Institution | Shares | Value | Ownership % | Change | Filing Date |
|---|
| 5.42M | $106.0M | 12.15% | -40.7K | 2026-03-31 |
| 2.03M | $39.0M | 4.54% | +228.3K | 2026-03-31 |
| 1.61M | $31.0M | 3.60% | +75.7K | 2026-03-31 |
| 1.54M | $30.0M | 3.46% | -- | 2026-03-31 |
| 1.54M | $30.0M | 3.45% | -422.0K | 2026-03-31 |
| 1.40M | $27.0M | 3.13% | +676 | 2026-03-31 |
| 1.03M | $20.0M | 2.30% | -211.6K | 2026-03-31 |
| 1.02M | $19.0M | 2.28% | +352.2K | 2026-03-31 |
| 976.6K | $19.0M | 2.19% | +89.8K | 2026-03-31 |
| 898.9K | $17.0M | 2.01% | -227.7K | 2026-03-31 |
| 787.8K | $15.0M | 1.76% | -- | 2026-03-31 |
| 665.5K | $13.0M | 1.49% | +108.5K | 2026-03-31 |
| 651.7K | $12.0M | 1.46% | +541.4K | 2026-03-31 |
| 604.8K | $11.0M | 1.35% | +103.4K | 2026-03-31 |
| 553.9K | $10.0M | 1.24% | +9.2K | 2026-03-31 |
| 452.9K | $8.0M | 1.01% | +17.3K | 2026-03-31 |
| 420.3K | $8.0M | 0.94% | -171.3K | 2026-03-31 |
| 420.3K | $8.0M | 0.94% | +163.6K | 2026-03-31 |
| 406.2K | $7.0M | 0.91% | +53.9K | 2026-03-31 |
| 372.3K | $7.0M | 0.83% | +888 | 2026-03-31 |
| 371.4K | $7.0M | 0.83% | +80.7K | 2026-03-31 |
| 330.5K | $6.0M | 0.74% | +6.9K | 2026-03-31 |
| 329.4K | $6.0M | 0.74% | -227.3K | 2026-03-31 |
| 325.3K | $6.0M | 0.73% | -234.1K | 2026-03-31 |
| 321.0K | $6.0M | 0.72% | -29.7K | 2026-03-31 |
Page 1 of 8