Wang David H 4
4 · ACM Research, Inc. · Filed Jun 5, 2026
Research Summary
AI-generated summary of this filing
ACM Research (ACMR) CEO David Wang Exercises Options, Sells Shares
What Happened
David H. Wang (CEO, President, Director and 10% owner) exercised a total of 100,002 option shares (60,000 on 2026-06-03 and 40,002 on 2026-06-04) at $1.00 per share (cash cost ≈ $100,002) and sold the same 100,002 shares in open-market transactions for aggregate proceeds of approximately $8.84 million. The sales occurred on 2026-06-03 and 2026-06-04 at prices roughly between $83.86 and $93.04 per share (weighted-average prices reported for multiple trades).
Key Details
- Transaction dates: 2026-06-03 and 2026-06-04; Form filed 2026-06-05 (timely).
- Options exercised: 60,000 @ $1.00 on 6/3 and 40,002 @ $1.00 on 6/4 (total acquired = 100,002; total exercise cost ≈ $100,002).
- Shares sold: 100,002 shares across multiple trades; total proceeds ≈ $8,835,389 (~$8.84M).
- Sales executed pursuant to a Rule 10b5-1 trading plan adopted Nov 29, 2024 (Footnote F1).
- Footnotes note weighted-average prices and price ranges for grouped trades; option is fully vested and exercisable (F13).
- Reporting status: Wang is a 10% owner and company chief executive; filing appears timely (not marked late).
Context
This was an exercise of vested options followed by sales of the resulting shares (a common cash-raising/cashless exercise pattern). Because the sales were carried out under a pre-established 10b5-1 plan, they were likely automatic transactions under that plan rather than ad hoc sales. As with all insider activity, this is a factual disclosure and does not by itself indicate the insider’s private view of the company’s prospects.
Insider Transaction Report
- Exercise/Conversion
Class A Common Stock
2026-06-03$1.00/sh+60,000$60,000→ 862,708 total - Sale
Class A Common Stock
[F1][F2]2026-06-03$87.57/sh−4,300$376,551→ 858,408 total - Sale
Class A Common Stock
[F1][F3]2026-06-03$88.98/sh−6,295$560,129→ 852,113 total - Sale
Class A Common Stock
[F1][F4]2026-06-03$89.84/sh−32,450$2,915,308→ 819,663 total - Sale
Class A Common Stock
[F1][F5]2026-06-03$90.78/sh−9,925$900,992→ 809,738 total - Sale
Class A Common Stock
[F1][F6]2026-06-03$92.38/sh−5,843$539,776→ 803,895 total - Sale
Class A Common Stock
[F1][F7]2026-06-03$93.04/sh−1,187$110,438→ 802,708 total - Exercise/Conversion
Class A Common Stock
2026-06-04$1.00/sh+40,002$40,002→ 842,710 total - Sale
Class A Common Stock
[F1][F8]2026-06-04$83.86/sh−2,060$172,752→ 840,650 total - Sale
Class A Common Stock
[F1][F9]2026-06-04$85.11/sh−17,543$1,493,085→ 823,107 total - Sale
Class A Common Stock
[F1][F10]2026-06-04$86.07/sh−10,992$946,081→ 812,115 total - Sale
Class A Common Stock
[F1][F11]2026-06-04$87.13/sh−8,581$747,663→ 803,534 total - Sale
Class A Common Stock
[F1][F12]2026-06-04$87.91/sh−826$72,614→ 802,708 total - Exercise/Conversion
Stock Option
[F13]2026-06-03−60,000→ 310,002 totalExercise: $1.00Exp: 2026-12-27→ Class A Common Stock (60,000 underlying) - Exercise/Conversion
Stock Option
[F13]2026-06-04−40,002→ 270,000 totalExercise: $1.00Exp: 2026-12-27→ Class A Common Stock (40,002 underlying)
- 100,002(indirect: By Spouse)
Class A Common Stock
- 45,837(indirect: By Sophia Wang, daughter of David H. Wang)
Class A Common Stock
- 180,000(indirect: By Trust)
Class A Common Stock
- 620,001(indirect: By Trust)
Class A Common Stock
Footnotes (13)
- [F1]The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024.
- [F10]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.7 to $86.57, inclusive.
- [F11]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $86.73 to $87.66, inclusive.
- [F12]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $87.77 to $88.01, inclusive.
- [F13]The option is fully vested and exercisable.
- [F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.22 to $88.04, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), and (12) to this Form 4.
- [F3]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.24 to $89.22, inclusive.
- [F4]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.24 to $90.22, inclusive.
- [F5]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $90.24 to $91.22, inclusive.
- [F6]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.01 to $92.8, inclusive.
- [F7]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $93.02 to $93.39, inclusive.
- [F8]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $83.61 to $84.24, inclusive.
- [F9]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $84.62 to $85.6, inclusive.