David H. Wang

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
Fremont, CA
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ Mark McKechnie, Attorney-in-Fact for David H. Wang
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for David H. Wang

Form 4 holding Officer, Director, 10%+ Owner

ACM Research, Inc.

Security class
Class A Common Stock
Shares / value
180,000
Estimated value
$22,840,200
Report date
08 Sep 2026
Price
$126.89
Ownership
By David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children
Form 4 holding Officer, Director, 10%+ Owner

ACM Research, Inc.

Security class
Restricted Stock Units
Shares / value
6,208
Estimated value
Report date
13 May 2026
Price
Ownership
By Sophia Wang, daughter of David H. Wang
Underlying class
Class A Common Stock
Underlying amount

Insider Reports Filed by David H. Wang

4 ACMR

ACM Research, Inc.

Report period
03 Jun 2026
Transactions
15
Transaction value
-$8,835,388
Accepted by SEC
05 Jun 2026, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
11 Mar 2026
Transactions
9
Transaction value
-$5,154,405
Accepted by SEC
13 Mar 2026, 16:46
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
03 Dec 2025
Transactions
8
Transaction value
-$4,231,477
Accepted by SEC
05 Dec 2025, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
03 Sep 2025
Transactions
7
Transaction value
-$3,329,787
Accepted by SEC
05 Sep 2025, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
21 May 2025
Transactions
7
Transaction value
-$2,879,804
Accepted by SEC
23 May 2025, 16:35
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
11 Mar 2025
Transactions
4
Transaction value
-$3,546,554
Accepted by SEC
13 Mar 2025, 21:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
26 Nov 2024
Transactions
2
Transaction value
-$1,006,087
Accepted by SEC
29 Nov 2024, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
22 Nov 2024
Transactions
1
Transaction value
-$1,073,250
Accepted by SEC
26 Nov 2024, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
29 May 2024
Transactions
2
Transaction value
-$1,947,356
Accepted by SEC
31 May 2024, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
22 May 2024
Transactions
2
Transaction value
-$2,052,900
Accepted by SEC
24 May 2024, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
14 Mar 2024
Transactions
2
Transaction value
-$2,405,050
Accepted by SEC
15 Mar 2024, 21:32
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
08 Mar 2024
Transactions
2
Transaction value
-$2,731,950
Accepted by SEC
12 Mar 2024, 21:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
29 Nov 2023
Transactions
2
Transaction value
-$1,452,663
Accepted by SEC
01 Dec 2023, 16:15
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
22 Nov 2023
Transactions
2
Transaction value
-$1,590,750
Accepted by SEC
27 Nov 2023, 16:30
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
4 ACMR

ACM Research, Inc.

Report period
12 Sep 2023
Transactions
3
Transaction value
-$3,130,016
Accepted by SEC
14 Sep 2023, 17:00
Role
Chief Executive Officer, President and Director, Director, 10%+ Owner
Next action
Open filing details
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