SC Filed 2023-07-18 Event — SEC 0001193805-23-000996 →

Shanghai Science & Technology Venture Capital (Group) Co., Ltd. → ACM Research, Inc. ACMR

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

20 transactions

6 buys · 10 sales · 4 awards/exercises

Issuer Cluster

3 13D/G filings on this issuer

2 other filings besides this one

Filer Track Record

2 filings by this filer

1 other filing in the data moat

Short Interest · settle 2026-08-31

DTC 4.37

3,970,966 shares short · +20.9% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-08-20	McKechnie Mark	officer	Option exercise	30,199	$19.49	$589K
2026-08-20	McKechnie Mark	officer	Option exercise	25,000	$13.89	$347K
2026-08-20	McKechnie Mark	officer	Sale	13,625	$76.34	$1.04M
2026-08-20	McKechnie Mark	officer	Sale	30,365	$77.45	$2.35M
2026-08-20	McKechnie Mark	officer	Sale	11,209	$77.89	$873K
2026-08-12	Pappis Charles C	director	Award	6,400	$81.26	$520K
2026-08-12	Pappis Charles C	director	Award	728	$96.13	$70K
2026-08-12	Liu Tracy	director	Award	6,400	$81.26	$520K
2026-08-12	Liu Tracy	director	Award	728	$96.13	$70K
2026-08-12	Dun Haiping	director	Award	6,400	$81.26	$520K
2026-08-12	Dun Haiping	director	Award	728	$96.13	$70K
2026-06-05	Cheav Sotheara	officer	Option exercise	5,399	$13.89	$75K
2026-06-05	Cheav Sotheara	officer	Sale	2,384	$81.73	$195K
2026-06-05	Cheav Sotheara	officer	Sale	968	$82.61	$80K
2026-06-05	Cheav Sotheara	officer	Sale	400	$84.01	$34K
2026-06-05	Cheav Sotheara	officer	Sale	1,647	$85.41	$141K
2026-06-04	Cheav Sotheara	officer	Option exercise	13,351	$13.89	$185K
2026-06-04	Cheav Sotheara	officer	Sale	1,300	$84.08	$109K
2026-06-04	Cheav Sotheara	officer	Sale	9,212	$85.11	$784K
2026-06-04	Cheav Sotheara	officer	Sale	2,839	$85.77	$244K

Other 13D/G Filings on ACM Research, Inc.

Filed	Form	Filer	Stake	Shares
2026-07-31	SCHEDULE 13G	VANGUARD PORTFOLIO MANAGEMENT LLC	—	—	view →
2024-10-08	SC	Shanghai Science & Technology Venture Capital (Group) Co., Ltd.	—	—	view →

Other Filings by Shanghai Science & Technology Venture Capital (Group) Co., Ltd.

Filed	Form	Issuer	Stake	Shares
2024-10-08	SC	ACM Research, Inc. ACMR	—	—	view →

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