High-Impact Form 4 Intelligence
Real-time SEC insider trading data with advanced filtering. Free beta.
Total Buys (Filtered)
$0
$0
Total Sells (Filtered)
$79.4M
$79,356,153
| Ticker | Company | Reporting Owner | Date | Value (USD) | Type | Form 4 |
|---|---|---|---|---|---|---|
| AMPX |
Amprius Technologies, Inc.
|
Director
10b5-1 SellΔOwn -15.7%
|
2026-04-01 | $23,860,714MEGAx2 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
Director
10b5-1 SellΔOwn -53.6%
|
2026-03-23 | $4,095,402Largex2 | S | Form 4 |
|
AMPX
S
Amprius Technologies, Inc.
Chu Steven
• Director
Discretionary Sell
2026-03-12
$2,878,555Largex3
|
||||||
| AMPX |
Amprius Technologies, Inc.
|
Director
Discretionary Sell
|
2026-03-12 | $2,878,555Largex3 | S | Form 4 |
|
AMPX
S
Amprius Technologies, Inc.
HSIEH Wen Hsuan
• Director
Discretionary SellΔOwn -61.7%
2026-03-12
$7,620,033Whalex2
|
||||||
| AMPX |
Amprius Technologies, Inc.
|
Director
Discretionary SellΔOwn -61.7%
|
2026-03-12 | $7,620,033Whalex2 | S | Form 4 |
|
AMPX
S
Amprius Technologies, Inc.
Chu Steven
• Director
Discretionary SellΔOwn -56.7%
2026-03-10
$2,985,429Large
|
||||||
| AMPX |
Amprius Technologies, Inc.
|
Director
Discretionary SellΔOwn -56.7%
|
2026-03-10 | $2,985,429Large | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CTO
Sell to Cover
|
2026-02-23 | $257,604 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
Director
Sell to Cover
|
2026-02-23 | $622,035 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CTO
10b5-1 Sell
|
2026-01-28 | $476,351 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CTO
10b5-1 Sell
|
2026-01-23 | $19,200 | S | Form 4 |
|
AMPX
S
Amprius Technologies, Inc.
Stefan Constantin Ionel
• CTO
10b5-1 SellΔOwn -39.7%
2026-01-22
$5,931,912Whale
|
||||||
| AMPX |
Amprius Technologies, Inc.
|
CTO
10b5-1 SellΔOwn -39.7%
|
2026-01-22 | $5,931,912Whale | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CTO
10b5-1 Sell
|
2026-01-21 | $879,411 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
Director
10b5-1 Sell
|
2026-01-20 | $476,274 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
Director
10b5-1 SellΔOwn -40.4%
|
2026-01-16 | $10,518,669MEGA | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
Director
10b5-1 SellΔOwn -26.5%
|
2026-01-12 | $5,111,474Whale | S | Form 4 |
|
AMPX
S
Amprius Technologies, Inc.
Stefan Constantin Ionel
• CTO
10b5-1 SellΔOwn -20.9%
2025-12-11
$2,083,382Large
|
||||||
| AMPX |
Amprius Technologies, Inc.
|
CTO
10b5-1 SellΔOwn -20.9%
|
2025-12-11 | $2,083,382Large | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CTO
Sell to Cover
|
2025-11-21 | $252,274 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CEO
Sell to Cover
|
2025-11-21 | $692,132 | S | Form 4 |
| AMPX |
Amprius Technologies, Inc.
|
CEO
10b5-1 SellΔOwn -40.5%
|
2025-11-17 | $10,595,300MEGA | S | Form 4 |