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
2026-06-04$1.00/sh+40,002→ 842,710 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-04$85.11/sh−17,543→ 823,107 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2026-06-04−40,002→ 270,000 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-04$86.07/sh−10,992→ 812,115 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-04$83.86/sh−2,060→ 840,650 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-04$87.91/sh−826→ 802,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-04$87.13/sh−8,581→ 803,534 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$90.78/sh−9,925→ 809,738 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$92.38/sh−5,843→ 803,895 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$1.00/sh+60,000→ 862,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$89.84/sh−32,450→ 819,663 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$93.04/sh−1,187→ 802,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$87.57/sh−4,300→ 858,408 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-06-03$88.98/sh−6,295→ 852,113 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2026-06-03−60,000→ 310,002 total
Award
ACM Research, Inc.$ACMR
Restricted Stock Units
2026-05-13+6,208→ 6,208 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-12$46.57/sh−702→ 802,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-12$45.74/sh−38,737→ 803,410 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2026-03-12−50,000→ 370,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-12$44.92/sh−10,561→ 842,147 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-12$1.00/sh+50,000→ 852,708 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-11$1.00/sh+60,000→ 862,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-11$47.89/sh−55,373→ 807,335 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Stock Option
2026-03-11−60,000→ 420,002 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2026-03-11$48.34/sh−4,627→ 802,708 total
Award
ACM Research, Inc.$ACMR
Stock Option
2026-02-04+545,400→ 1,636,197 total
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$33.52/sh−19,817→ 842,891 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-12-03$33.05/sh−68,800→ 803,908 total
Exercise/Conversion
ACM Research, Inc.$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$33.56/sh−1,200→ 802,708 total
Award
ACM Research, Inc.$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
Stock Option
2025-09-04−60,000→ 740,002 total
Exercise/Conversion
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-04$1.00/sh+60,000→ 732,708 total
Sale
ACM Research, Inc.$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$27.31/sh−3,943→ 672,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-09-03$26.73/sh−66,057→ 676,651 total
Exercise/Conversion
ACM Research, Inc.$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$1.00/sh+60,000→ 732,708 total
Sale
ACM Research, Inc.$ACMR
Class A Common Stock
2025-05-21$23.60/sh−69,992→ 672,716 total
Exercise/Conversion
ACM Research, Inc.$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

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