DW
Insider
David H Wang
See RemarksDavid H Wang (See Remarks) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 sales), most often in ACM Research, Inc. Class A Common Stock (ACMR). The largest single filing was $10.5M of ACMR (138,900 sh across 8 lots, as filed), executed Sep 8.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
4
0 buys · 4 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$28.8M
shares × price, as filed
Last traded
Sep 9
Filed Sep 10
Median ADV $117.5M across their filed names
Open performance→Volume by month
Buys $0
Sells $41.8M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Technology
4 filings
Sector per market data · by filing · past 12 months
Most traded names
ACMRRecent filings
ACMRSALE
ACM Research, Inc. Class A Common Stock
View filing →
$10.5M138,900 sh across 8 lots
Exec Sep 8
Filed Sep 10 · 4:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $8.8M
99,176 sh across 10 lots
Exec Jun 3
Filed Jun 5 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $5.1M
109,298 sh across 4 lots
Exec Mar 11
Filed Mar 13 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $4.3M
128,800 sh across 3 lots
Exec Dec 3 2025
Filed Dec 5 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $3.5M
130,000 sh across 3 lots
Exec Sep 3 2025
Filed Sep 5 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $3.0M
129,992 sh across 2 lots
Exec May 21 2025
Filed May 23 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $3.5M
130,231 sh across 3 lots
Exec Mar 11 2025
Filed Mar 13 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $981K
56,250 sh × $17.44
Exec Nov 29 2024
Filed Dec 3 2024 · 5:30 PM ET More filings →