Wang David H

CIK 00017215801 companyFREMONT, CA

SEC Profile

Transactions

Companies

Filings

CIK

0001721580

Recent Transactions

50 trades

Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-04$1.00/sh+60,000→ 862,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-12-04−60,000→ 480,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-04$34.42/sh−40,183→ 802,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-04$33.52/sh−19,817→ 842,891 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-12-03−70,000→ 540,002 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-03$1.00/sh+70,000→ 872,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-03$33.05/sh−68,800→ 803,908 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-03$33.56/sh−1,200→ 802,708 total
Award
ACM Research, Inc.$ACMR
Stock Option
2025-10-27+545,400→ 545,400 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-09-08−130,000→ 610,002 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-08$1.00/sh+130,000→ 802,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-04$1.00/sh+60,000→ 732,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-09-04−60,000→ 740,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-04$26.44/sh−60,000→ 672,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-03$26.73/sh−66,057→ 676,651 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-03$27.31/sh−3,943→ 672,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-03$1.00/sh+70,000→ 742,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-09-03−70,000→ 800,002 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-05-22−60,000→ 870,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-22$22.63/sh−60,000→ 672,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-22$1.00/sh+60,000→ 732,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-21$1.00/sh+70,000→ 742,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-05-21−70,000→ 930,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-21$23.60/sh−69,992→ 672,716 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-21$24.04/sh−8→ 672,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-13$27.65/sh−1,019→ 672,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-13$27.29/sh−36,481→ 673,727 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-12$27.42/sh−37,500→ 710,208 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-11$26.57/sh−56,250→ 747,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2025-03-03−210,000→ 0 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-03$0.50/sh+210,000→ 808,006 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2025-03-03$25.94/sh−4,048→ 803,958 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-29$17.44/sh−56,250→ 598,006 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-26$17.80/sh−46,766→ 663,740 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-26$18.31/sh−9,484→ 654,256 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-22$19.08/sh−56,250→ 710,506 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-14$0.50/sh+270,000→ 774,018 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-11-14+270,000→ 210,000 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-11-14$18.59/sh−7,262→ 766,756 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-29$22.62/sh−45,000→ 545,108 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-29$22.62/sh−41,090→ 504,018 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-22$22.81/sh−45,000→ 635,108 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-22$22.81/sh−45,000→ 590,108 total
Tax Payment
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-14$23.02/sh−3,910→ 680,108 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2024-05-14−180,000→ 480,000 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2024-05-14$0.50/sh+180,000→ 684,018 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-14$27.51/sh−76,478→ 514,629 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-14$28.38/sh−10,611→ 504,018 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-08$30.35/sh−45,000→ 591,107 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2024-03-08$30.36/sh−45,000→ 636,107 total

Companies

ACM Research, Inc.
Director, See Remarks, 10% Owner
$ACMR

Recent Filings

Address

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

FREMONT, CA, 94539

View on SEC.gov