Liu Tracy 4
4 · ACM Research, Inc. · Filed Mar 12, 2026
Research Summary
AI-generated summary of this filing
ACM Research (ACMR) Director Tracy Liu Exercises Options, Sells Shares
What Happened Tracy Liu, a director of ACM Research (ACMR), exercised a total of 60,000 options (45,000 on 2026-03-10 and 15,000 on 2026-03-11) at a $1.00 strike (cash paid $60,000). The reporting person sold the 60,000 shares in open-market transactions across 3/10–3/11 for aggregate proceeds of approximately $2,850,782. The sales were executed under a Rule 10b5-1 trading plan.
Key Details
- Transaction dates: exercises on 2026-03-10 and 2026-03-11; corresponding open-market sales on 2026-03-10 and 2026-03-11. Filing date: 2026-03-12 (timely).
- Exercise: 60,000 shares acquired at $1.00 (total cash to exercise $60,000). Option noted as fully vested (F6).
- Sales: 60,000 shares sold in multiple trades (32,216 @ $47.06; 12,784 @ $48.19; 11,623 @ $47.81; 3,377 @ $48.25). Total proceeds ≈ $2,850,782. Reported prices are weighted averages; execution price ranges noted in footnotes (approx. $46.67–$48.50).
- Plan/notes: Sales effected pursuant to a 10b5-1 plan adopted Dec 4, 2025 (F1). Some Form 4 entries show the derivative leg reported as disposed at $0, reflecting the exercise/conversion of the derivative.
- Shares owned after the transactions are not provided in the summary data; see the Form 4 filing for current holdings.
Context This is a typical exercised-option plus immediate sale (cashless-style) transaction: the insider exercised vested options and sold the resulting shares under a pre-established plan. Such transactions are often routine and governed by trading plans; they are factual disclosures and should not be taken alone as a signal of company outlook.
Insider Transaction Report
- Exercise/Conversion
Class A Common Stock
2026-03-10$1.00/sh+45,000$45,000→ 155,772 total - Sale
Class A Common Stock
[F1][F2]2026-03-10$47.06/sh−32,216$1,516,085→ 123,556 total - Sale
Class A Common Stock
[F1][F3]2026-03-10$48.19/sh−12,784$616,061→ 110,772 total - Exercise/Conversion
Class A Common Stock
2026-03-11$1.00/sh+15,000$15,000→ 125,772 total - Sale
Class A Common Stock
[F1][F4]2026-03-11$47.81/sh−11,623$555,696→ 114,149 total - Sale
Class A Common Stock
[F1][F5]2026-03-11$48.25/sh−3,377$162,940→ 110,772 total - Exercise/Conversion
Stock Option
[F6]2026-03-10−45,000→ 15,000 totalExercise: $1.00Exp: 2026-12-27→ Class A Common Stock (45,000 underlying) - Exercise/Conversion
Stock Option
[F6]2026-03-11−15,000→ 0 totalExercise: $1.00Exp: 2026-12-27→ Class A Common Stock (15,000 underlying)
Footnotes (6)
- [F1]The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 4, 2025.
- [F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.67 to $47.51, 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), and (5) 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 $47.70 to $48.50, inclusive.
- [F4]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $47.13 to $48.12, inclusive.
- [F5]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.13 to $48.44, inclusive.
- [F6]The option is fully vested and exercisable.