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Who

Mark McKechnie

Officer

Company insider

Files Form 4 as: Officer, ACM Research.

Every Form 4 they filed

In numbers

Trades disclosed
111
Buys
0
Sells
19
Bought
$0
Sold
$24.9M
Companies
1
Companies where not an officer
0
First trade
4 Nov 2019
Last trade
20 Aug 2026
Last filed
21 Aug 2026

Companies traded

Where they are an officer
ACMR ACM ResearchOfficer · Semiconductor Equipment · last 20 Aug 20260 buys · 19 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
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$589K30,199 at $19.49filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$347K25,000 at $13.89filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$1.0M13,625 at $76.34filing
20 Aug 2026filed 21 Aug 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—30,199 at $0.00filing
20 Aug 2026filed 21 Aug 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—25,000 at $0.00filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$2.4M30,365 at $77.45filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$873K11,209 at $77.89filing
20 Aug 2026filed 21 Aug 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—30,199 at $0.00filing
20 Aug 2026filed 21 Aug 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—25,000 at $0.00filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$589K30,199 at $19.49filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$347K25,000 at $13.89filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$1.0M13,625 at $76.34filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$2.4M30,365 at $77.45filing
20 Aug 2026filed 21 Aug 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$873K11,209 at $77.89filing
12 Mar 2026filed 13 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Code M$833K60,000 at $13.89filing
12 Mar 2026filed 13 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—38,551 at $0.00filing
12 Mar 2026filed 13 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$535K11,910 at $44.89filing
12 Mar 2026filed 13 Mar 2026ACMR ACM ResearchSemiconductor EquipmentSEC FORM 4 Sold$2.2M47,108 at $45.74filing
12 Mar 2026filed 13 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—60,000 at $0.00filing
12 Mar 2026filed 13 Mar 2026ACMR ACM Researchoption or derivative · Semiconductor EquipmentSEC FORM 4 Code M—38,551 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology19

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
Sotheara CheavOfficer · Insider at ACM Research, filing Form 4 there in the last year