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Who

Lisa Feng

Officer

Company insider

Files Form 4 as: Officer, ACM Research.

Every Form 4 they filed

In numbers

Trades disclosed
57
Buys
0
Sells
11
Bought
$0
Sold
$6.7M
Companies
1
Companies where not an officer
0
First trade
4 Nov 2019
Last trade
6 Mar 2026
Last filed
9 Mar 2026

Companies traded

Where they are an officer
ACMR ACM ResearchOfficer · Semiconductor Equipment · last 6 Mar 20260 buys · 11 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
6 Mar 2026filed 9 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$68K15,000 at $4.55filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$682K14,800 at $46.07filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$9,316200 at $46.58filing
6 Mar 2026filed 9 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$68K15,000 at $4.55filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$682K14,800 at $46.07filing
6 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$9,316200 at $46.58filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$68K15,000 at $4.55filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$401K8,050 at $49.81filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$349K6,950 at $50.24filing
5 Mar 2026filed 9 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing
5 Mar 2026filed 9 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$68K15,000 at $4.55filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$401K8,050 at $49.81filing
5 Mar 2026filed 9 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$349K6,950 at $50.24filing
13 Nov 2025filed 14 Nov 2025ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing
13 Nov 2025filed 14 Nov 2025ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$84K15,000 at $5.60filing
13 Nov 2025filed 14 Nov 2025ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$507K15,000 at $33.77filing
12 Nov 2025filed 14 Nov 2025ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—15,000 at $0.00filing

Sectors

Technology11

Buys in green, sells in red, by the company’s sector.

Related people

David H. WangDirector and Officer and 10% owner · Director and Officer and 10% owner at ACM Research, filing Form 4 there in the last year
Tracy LiuDirector · Director at ACM Research, filing Form 4 there in the last year
Charles C. PappisDirector · Director at ACM Research, filing Form 4 there in the last year
Haiping DunDirector · Director at ACM Research, filing Form 4 there in the last year
Mark McKechnieOfficer · Officer at ACM Research, filing Form 4 there in the last year