// insider-profile
Chu Steven
DirectorView on SEC.gov ↗
// activity-summary
No insider transactions in the last 30 days.
// track-record
$0
Total purchased
$5.9M
Total sold
4
0B · 4S transactions
Net seller
Overall direction
Most active in
Filing history: Jun 2024 — Mar 2026Based on last 14 filings
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 12, 2026 | Chu Steven | AMPX | Option Exercise | 86,143 | $2.61 | $225K |
| Mar 12, 2026 | Chu Steven | AMPX | Option Exercise | 69,422 | $0.62 | $43K |
| Mar 12, 2026 | Chu Steven | AMPX | Sale | 100,000 | $18.65 | $1.86M |
| Mar 12, 2026 | Chu Steven | AMPX | Sale | 50,000 | $18.21 | $911K |
| Mar 12, 2026 | Chu Steven | AMPX | Sale | 5,565 | $18.53 | $103K |
9 more transactions hidden
Free account · No credit card required
Building something? Get API access →