Loading AMPX-WT…
Import this data to Google Sheets with:
=jivedata("AMPX-WT","insider")Install the Jive Data add-on, then paste into a cell (the result spills as a table).
AMPX-WT • CIK 0001899287
Loading insider transactions…
People and entities that have reported ownership via Form 3, 3/A, 4, 4/A, 5, 5/A
Parsed transactions from Form 4 (and 3/5) filings (past year)
0 transactions · 0 shares
— total value
26 transactions · 3.95M shares
$59.19M total value
18 transactions · 3.14M shares
| Filing Date | Insiders | Transactions | Filing |
|---|---|---|---|
| Aug 25, 2026 | Stepien Thomas M | Sold 31.53K @ $10.2621/share ($323.55K) Grant/Award: 346 shares Gift: 15.35K | View |
| Aug 25, 2026 | Stefan Constantin Ionel | Sold 29.68K @ $10.341/share ($306.93K) | View |
| Aug 25, 2026 | Sun Kang | Sold 62.10K @ $10.341/share ($642.19K) | View |
| Jun 16, 2026 | SATTERTHWAITE LIVINGSTON | Grant/Award: 10.42K shares | View |
| Jun 16, 2026 | Chu Steven | Grant/Award: 10.42K shares | View |
| Jun 16, 2026 | BAYLESS KATHLEEN A | Grant/Award: 10.42K shares | View |
| Jun 16, 2026 | DIXON DONALD R | Sold 85.00K @ $17.1672/share ($1.46M) Grant/Award: 10.42K shares | View |
| Jun 11, 2026 | DIXON DONALD R | Sold 40.00K @ $19.13/share ($765.20K) | View |
| May 28, 2026 | Sun Kang | Sold 356 @ $17.1935/share ($6.12K) | View |
| May 28, 2026 | DIXON DONALD R | Sold 17.89K @ $17.8962/share ($320.25K) | View |
| May 26, 2026 | Sun Kang | Sold 67.80K @ $14.7884/share ($1.00M) | View |
| May 7, 2026 | Sun Kang | Grant/Award: 6.25K shares | View |
| Apr 2, 2026 | Sun Kang | Exercised 1.50M options @ $2.0175/share; sold 1.50M @ $15.9071/share ($23.86M) | View |
| Mar 24, 2026 | Sun Kang | Sold 217.87K @ $18.7975/share ($4.10M) | View |
| Mar 13, 2026 | HSIEH Wen Hsuan | Exercised 270.25K options @ $2.61/share; sold 413.15K @ $18.4439/share ($7.62M) | View |
| Mar 12, 2026 | Chu Steven | Exercised 259.70K options @ $1.2801/share; sold 322.20K @ $18.20/share ($5.86M) | View |
| Feb 24, 2026 | Stefan Constantin Ionel | Sold 25.37K @ $10.1555/share ($257.60K) | View |
| Jan 30, 2026 | Stefan Constantin Ionel | Exercised 39.69K options @ $0.0513/share; sold 39.69K @ $12.0018/share ($476.35K) | View |
| Jan 23, 2026 | Stefan Constantin Ionel | Exercised 567.71K options @ $0.143/share; sold 567.71K @ $12.0318/share ($6.83M) | View |
| Jan 14, 2026 | Sun Kang | Exercised 506.27K options @ $1.8039/share; sold 506.27K @ $10.0964/share ($5.11M) | View |
| Dec 22, 2025 | Stepien Thomas M | Grant/Award: 200.00K shares | View |
| Nov 25, 2025 | Stefan Constantin Ionel | Sold 25.02K @ $10.0813/share ($252.27K) | View |