Haiping Dun

Director

Haiping Dun (Director) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in ACM Research, Inc. Class A Common Stock (ACMR). The largest single filing was $276K of ACMR (3,400 sh × $81.31, as filed), executed Aug 18.

Add to watchlist

Return, 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

0 buys · 3 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$580K

shares × price, as filed

Last traded

Aug 18

Filed Aug 20

Median ADV $117.5M across their filed names

Open performance→

Volume by month

Buys $0 Sells $1.8M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Technology 3 filings

Sector per market data · by filing · past 12 months

Most traded names

ACMR

ACM Research, Inc. Class A Common Stock ACMR · 0 buys · 7 sells 7 filings

Recent filings

ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $276K
3,400 sh × $81.31
Exec Aug 18
Filed Aug 20 · 4:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $125K
1,858 sh × $67.54
Exec May 19
Filed May 21 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $178K
4,100 sh × $43.37
Exec Mar 9
Filed Mar 11 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $206K
7,062 sh × $29.23
Exec Mar 14 2025
Filed Mar 18 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $398K
15,001 sh × $26.54
Exec Mar 10 2025
Filed Mar 12 2025 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $332K
19,058 sh × $17.43
Exec Nov 29 2024
Filed Dec 3 2024 · 5:30 PM ET ACMRSALE ACM Research, Inc. Class A Common Stock View filing → $287K
15,000 sh × $19.12
Exec Nov 22 2024
Filed Nov 26 2024 · 5:30 PM ET