// insider-profile
Zhang Jack Y.
// activity-summary
No insider transactions in the last 30 days.
// track-record
$0
Total purchased
$0
Total sold
0
0B · 0S transactions
Mixed
Overall direction
Filing history: Mar 2024 — Mar 2026Based on last 50 filings
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 15, 2026 | Zhang Jack Y. | AMPH | Tax Withholding | 9,784 | $18.18 | $178K |
| Mar 15, 2026 | Zhang Jack Y. | AMPH | Tax Withholding | 2,908 | $18.18 | $53K |
| Mar 10, 2026 | Zhang Jack Y. | AMPH | Tax Withholding | 14,785 | $18.91 | $280K |
| Mar 10, 2026 | Zhang Jack Y. | AMPH | Tax Withholding | 4,395 | $18.91 | $83K |
| Mar 9, 2026 | Zhang Jack Y. | AMPH | Award | 180,504 | $0.00 | $0K |
45 more transactions hidden
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