AMPX Insider Activity
View recent SEC Form 4 insider transactions for AMPX, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Aug 25, 2026 | Stepien Thomas M | Gift | 346 | $0.00 | $0.00 | 578,750 |
| Aug 25, 2026 | Stepien Thomas M | Gift | 5,000 | $0.00 | $0.00 | 589,096 |
| Aug 24, 2026 | Stepien Thomas M | Sale | 8,000 | $10.03 | $80,240.00 | 594,096 |
| Aug 21, 2026 | Stefan Constantin Ionel | Sale | 29,681 | $10.34 | $306,931.22 | 771,629 |
| Aug 21, 2026 | Stepien Thomas M | Sale | 23,529 | $10.34 | $243,313.39 | 602,096 |
| Aug 21, 2026 | Sun Kang | Sale | 62,101 | $10.34 | $642,186.44 | 1,218,397 |
| Jun 15, 2026 | DIXON DONALD R | Sale | 85,000 | $17.17 | $1,459,212.00 | 359,380 |
| Jun 12, 2026 | BAYLESS KATHLEEN A | Grant | 10,423 | $0.00 | $0.00 | 216,120 |
| Jun 12, 2026 | Chu Steven | Grant | 10,423 | $0.00 | $0.00 | 137,762 |
| Jun 12, 2026 | DIXON DONALD R | Grant | 10,423 | $0.00 | $0.00 | 280,079 |
| Jun 12, 2026 | SATTERTHWAITE LIVINGSTON | Grant | 10,423 | $0.00 | $0.00 | 346,506 |
| Jun 09, 2026 | DIXON DONALD R | Sale | 40,000 | $19.13 | $765,200.00 | 444,380 |
| Jun 04, 2026 | Stepien Thomas M | Gift | 30,384 | $0.00 | $0.00 | 664,539 |
| Jun 04, 2026 | Stepien Thomas M | Sale | 2,000 | $20.97 | $41,940.00 | 625,625 |
| Jun 04, 2026 | Stepien Thomas M | Gift | 36,914 | $0.00 | $0.00 | 627,625 |
| May 27, 2026 | Stefan Constantin Ionel | Sale | 3,208 | $17.19 | $55,156.75 | 801,310 |
| May 27, 2026 | Stepien Thomas M | Sale | 4,375 | $17.19 | $75,221.56 | 694,923 |
| May 27, 2026 | Sun Kang | Sale | 356 | $17.19 | $6,120.89 | 1,280,498 |
| May 26, 2026 | DIXON DONALD R | Sale | 17,895 | $17.90 | $320,252.50 | 484,380 |
| May 21, 2026 | Stefan Constantin Ionel | Sale | 28,812 | $14.79 | $426,083.38 | 804,518 |
| May 21, 2026 | Stepien Thomas M | Sale | 60,702 | $14.79 | $897,685.46 | 699,298 |
| May 21, 2026 | Sun Kang | Sale | 67,796 | $14.79 | $1,002,594.37 | 1,280,854 |
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