Wang David H
See Remarks
Wang David H has filed 6 SEC Form 4 filings (43 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Sep 10, 2026.
On the most recent filing, Wang David H is listed as See Remarks at ACM Research, Inc. Inside the rolling window, Wang David H reported no open-market purchases and 8 open-market sales totaling $29.0M in ACMR. The largest disclosed transaction in the window is a sale of 70,000 ACMR shares on Sep 8, 2026, worth $5.4M.
Companies traded
Other insiders at ACMR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$29.0M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| ACMR | See Remarks | Sale | 70,000 | $5.4M | Sep 10 | SEC ↗ | |
| ACMR | See Remarks | Sale | 70,000 | $5.2M | Sep 10 | SEC ↗ | |
| ACMR | See Remarks | Sale | 60,000 | $5.4M | Jun 5 | SEC ↗ | |
| ACMR | See Remarks | Sale | 40,002 | $3.4M | Jun 5 | SEC ↗ | |
| ACMR | See Remarks | Sale | 60,000 | $2.9M | Mar 13 | SEC ↗ | |
| ACMR | See Remarks | Sale | 50,000 | $2.3M | Mar 13 | SEC ↗ | |
| ACMR | See Remarks | Sale | 70,000 | $2.3M | Dec 5 | SEC ↗ | |
| ACMR | See Remarks | Sale | 60,000 | $2.0M | Dec 5 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
Frequently asked questions
How many SEC Form 4 filings has Wang David H made?
Wang David H has filed 6 SEC Form 4 filings (43 transaction rows) across 1 company since 2025.
Which companies does Wang David H trade?
Wang David H has filed SEC Form 4 disclosures for 1 company, including ACMR.
When was Wang David H's most recent SEC Form 4 filing?
Wang David H's most recent SEC Form 4 filing on Tracefour is dated Sep 10, 2026.
What is Wang David H's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Wang David H is listed as See Remarks.
What is Wang David H's total buy and sell value in the current window?
Inside the rolling retention window, Wang David H bought $0 and sold $29.0M based on SEC Form 4 filings.
What was Wang David H's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 70,000 ACMR shares on 2026-09-08, worth $5.4M, per SEC Form 4 filings.