Chu Steven
SEC Form 4 insider trading activity
Chu Steven has filed 2 SEC Form 4 filings (8 transaction rows) across 1 company, with disclosures dating back to 2026. 2 of those filings fall inside the rolling window. Most recent filing: Jun 16, 2026.
On the most recent filing, Chu Steven is listed as Director at Amprius Technologies, Inc. Inside the rolling window, Chu Steven reported no open-market purchases and 2 open-market sales totaling $5.9M in AMPX. The largest disclosed transaction in the window is a sale of 166,632 AMPX shares on Mar 10, 2026, worth $3.0M.
Companies traded
Other insiders at AMPX
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$5.9M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Chu Steven made?
Chu Steven has filed 2 SEC Form 4 filings (8 transaction rows) across 1 company since 2026.
Which companies does Chu Steven trade?
Chu Steven has filed SEC Form 4 disclosures for 1 company, including AMPX.
When was Chu Steven's most recent SEC Form 4 filing?
Chu Steven's most recent SEC Form 4 filing on Tracefour is dated Jun 16, 2026.
What is Chu Steven's total buy and sell value in the current window?
Inside the rolling retention window, Chu Steven bought $0 and sold $5.9M based on SEC Form 4 filings.
What was Chu Steven's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 166,632 AMPX shares on 2026-03-10, worth $3.0M, per SEC Form 4 filings.