Haiping Dun – Insider Trading Activity | DataHeimdall

Haiping Dun

Director at ACM Research, Inc.

CIK: 1680062

13

Total trades

1

Buys

8

Sells

May 19, 2026

Last trade

Date	Stock	Type	Shares	Value	Src
May 19, 2026	ACMRACM Research, Inc.	Sell	1,333	$85K
May 19, 2026	ACMRACM Research, Inc.	Option	5,000	$28K
May 19, 2026	ACMRACM Research, Inc.	Sell	1,858	$125K
May 19, 2026	ACMRACM Research, Inc.	Sell	1,309	$88K
May 19, 2026	ACMRACM Research, Inc.	Sell	500	$33K
Apr 17, 2026	ACMRACM Research, Inc.	Sell	5,000	$260K
Apr 17, 2026	ACMRACM Research, Inc.	Option	5,000	$146K
Dec 26, 2023	ACMRACM Research, Inc.	Sell	7,500	$150K
Dec 26, 2023	ACMRACM Research, Inc.	Option	10,000	$56K
Dec 26, 2023	ACMRACM Research, Inc.	Sell	10,000	$200K
Dec 26, 2023	ACMRACM Research, Inc.	Option	7,500	$42K
Dec 28, 2022	ACMRACM Research, Inc.	Buy	22,500	–
Dec 30, 2020	ACMRACM Research, Inc.	Sell	32,486	$2.5M