Sun Kang
SEC Form 4 insider trading activity
Sun Kang has filed 11 SEC Form 4 filings (26 transaction rows) across 1 company, with disclosures dating back to 2025. 11 of those filings fall inside the rolling window. Most recent filing: Aug 25, 2026.
On the most recent filing, Sun Kang is listed as Director at Amprius Technologies, Inc. Inside the rolling window, Sun Kang reported no open-market purchases and 11 open-market sales totaling $57.6M in AMPX. The largest disclosed transaction in the window is a sale of 1,500,000 AMPX shares on Apr 1, 2026, worth $23.9M.
Companies traded
Other insiders at AMPX
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$57.6M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| AMPX | Director | Sale | 62,101 | $642K | Aug 25 | SEC ↗ | |
| AMPX | Director | Sale | 356 | $6K | May 28 | SEC ↗ | |
| AMPX | Director | Sale | 67,796 | $1.0M | May 26 | SEC ↗ | |
| AMPX | Director | Sale | 1,500,000 | $23.9M | Apr 2 | SEC ↗ | |
| AMPX | Director | Sale | 217,869 | $4.1M | Mar 24 | SEC ↗ | |
| AMPX | Director | Sale | 61,251 | $622K | Feb 24 | SEC ↗ | |
| AMPX | Director | Sale | 950,548 | $10.5M | Jan 20 | SEC ↗ | |
| AMPX | Director | Sale | 43,185 | $476K | Jan 20 | SEC ↗ | |
| AMPX | Director | Sale | 506,267 | $5.1M | Jan 14 | SEC ↗ | |
| AMPX | Chief Executive Officer | Sale | 68,655 | $692K | Nov 25 | SEC ↗ | |
| AMPX | Chief Executive Officer | Sale | 1,000,000 | $10.6M | Nov 19 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Sun Kang made?
Sun Kang has filed 11 SEC Form 4 filings (26 transaction rows) across 1 company since 2025.
Which companies does Sun Kang trade?
Sun Kang has filed SEC Form 4 disclosures for 1 company, including AMPX.
When was Sun Kang's most recent SEC Form 4 filing?
Sun Kang's most recent SEC Form 4 filing on Tracefour is dated Aug 25, 2026.
What is Sun Kang's total buy and sell value in the current window?
Inside the rolling retention window, Sun Kang bought $0 and sold $57.6M based on SEC Form 4 filings.
What was Sun Kang's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 1,500,000 AMPX shares on 2026-04-01, worth $23.9M, per SEC Form 4 filings.