Dun Haiping

CIK 00017215811 companyFREMONT, CA

SEC Profile

Transactions

Companies

Filings

CIK

0001721581

Recent Transactions

50 trades

Gift
ACM Research, Inc.$ACMR
Class A Common Stock
2025-11-12−755,090→ 0 total
Award
ACM Research, Inc.$ACMR
Stock Option
2025-08-12+20,000→ 20,000 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-14$29.23/sh−7,062→ 755,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-14$28.32/sh−2,456→ 762,152 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-10$26.54/sh−15,001→ 764,608 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-03$25.94/sh−482→ 779,609 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-03-03−25,001→ 0 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-03$0.50/sh+25,001→ 780,091 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-29$17.43/sh−19,058→ 755,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-22$19.12/sh−15,000→ 774,148 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-14$0.50/sh+35,000→ 790,090 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-14$18.59/sh−942→ 789,148 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-11-14−35,000→ 25,001 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-08-29$18.08/sh−19,097→ 755,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-08-22$19.85/sh−15,000→ 774,187 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-08-14$0.50/sh+35,000→ 790,090 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-08-14$19.38/sh−903→ 789,187 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-08-14−35,000→ 60,001 total
Award
ACM Research, Inc.$ACMR
Stock Option
2024-08-12+20,000→ 20,000 total
Gift
ACM Research, Inc.$ACMR
Class B Common Stock
2024-06-27−300,000→ 0 total
Gift
ACM Research, Inc.$ACMR
Class A Common Stock
2024-06-27−100,000→ 755,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-29$22.63/sh−19,239→ 855,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-22$22.88/sh−15,000→ 874,329 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-05-14−35,000→ 95,001 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-14$23.02/sh−761→ 889,329 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-14$0.50/sh+35,000→ 890,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-14$27.56/sh−15,877→ 858,647 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-14$28.34/sh−3,557→ 855,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-08$30.36/sh−15,000→ 874,524 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-01$30.92/sh−566→ 889,524 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-03-01−35,000→ 130,001 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-01$0.50/sh+35,000→ 890,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2023-11-29$17.25/sh−18,984→ 855,090 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2023-11-22$17.66/sh−15,000→ 874,074 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2023-11-14$0.50/sh+35,000→ 890,090 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2023-11-14−35,000→ 165,001 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2023-11-14$17.23/sh−1,016→ 889,074 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2023-08-22$13.85/sh−32,098→ 855,090 total
Award
ACM Research, Inc.$ACMR
Stock Option
2023-08-10−24,000→ 24,000 total
Award
ACM Research, Inc.$ACMR
Stock Option
2023-08-10−30,000→ 30,000 total
Award
ACM Research, Inc.$ACMR
Stock Option
2023-08-10−24,000→ 24,000 total
Award
ACM Research, Inc.$ACMR
Stock Option
2023-08-10−30,000→ 30,000 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2023-06-01$10.00/sh−37,500→ 887,188 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2023-05-22−37,500→ 200,001 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2023-05-22$9.73/sh−1,928→ 924,688 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2023-05-22$0.50/sh+37,500→ 926,616 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2023-03-16$12.06/sh−37,500→ 889,116 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2023-03-09$0.50/sh+37,500→ 928,120 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2023-03-09$12.47/sh−1,504→ 926,616 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2023-03-09−37,500→ 237,501 total

Companies

ACM Research, Inc.
Director
$ACMR

Recent Filings

Address

C/O ACM RESEARCH, INC. 42307 OSGOOD ROAD, SUITE I

FREMONT, CA, 94539

View on SEC.gov