Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 24 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

24 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 18, 2025 ACMR S 10b5-1 30,000 $35.00 $1,050,000 253,158 Direct -10.59% Disposed 117.6% (price as of 2026-10-05)
Aug. 25, 2025 ACMR S 10b5-1 30,000 $32.00 $960,000 253,158 Direct -10.59% Disposed 138.0% (price as of 2026-10-05)
Aug. 22, 2025 ACMR S 10b5-1 30,000 $30.00 $900,000 253,158 Direct -10.59% Disposed 153.9% (price as of 2026-10-05)
June 11, 2024 ACMR S 10b5-1 1,680 $23.68 $39,782 253,158 Direct -0.66% Disposed 221.7% (price as of 2026-10-05)
June 11, 2024 ACMR S 10b5-1 28,320 $22.98 $650,794 254,838 Direct -10.00% Disposed 231.5% (price as of 2026-10-05)
June 10, 2024 ACMR S 10b5-1 30,000 $22.07 $662,100 253,158 Direct -10.59% Disposed 245.1% (price as of 2026-10-05)
June 7, 2024 ACMR S 10b5-1 30,000 $22.07 $662,100 253,158 Direct -10.59% Disposed 245.1% (price as of 2026-10-05)
June 6, 2024 ACMR S 10b5-1 30,000 $22.92 $687,600 253,158 Direct -10.59% Disposed 232.3% (price as of 2026-10-05)
Dec. 30, 2020 ACMR S 10b5-1 32,486 $78.00 $2,533,908 84,386 Direct -27.80% Disposed 193.0% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Sept. 18, 2025 ACMR Stock Option Class A Common Stock (30,000) $5.60 April 22, 2029 30,000 Disposed
Aug. 25, 2025 ACMR Stock Option Class A Common Stock (30,000) $5.60 April 22, 2029 30,000 Disposed
Aug. 22, 2025 ACMR Stock Option Class A Common Stock (30,000) $5.60 April 22, 2029 30,000 Disposed
June 11, 2024 ACMR Stock Option Class A Common Stock (30,000) $4.62 July 31, 2028 30,000 Disposed
June 10, 2024 ACMR Stock Option Class A Common Stock (30,000) $4.62 July 31, 2028 30,000 Disposed
June 7, 2024 ACMR Stock Option Class A Common Stock (30,000) $4.62 July 31, 2028 30,000 Disposed
June 6, 2024 ACMR Stock Option Class A Common Stock (30,000) $4.62 July 31, 2028 30,000 Disposed
Feb. 12, 2023 ACMR Stock Option Class A Common Stock (15,000) $25.45 March 3, 2032 15,000 Acquired
Sept. 9, 2020 ACMR Stock Option Class A Common Stock (33,334) $1.50 May 1, 2025 33,334 Disposed
April 23, 2019 ACMR Stock Options Class A Common Stock (30,000) $16.81 April 22, 2029 30,000 Acquired
Aug. 1, 2018 ACMR Stock Options Class A Common Stock (40,000) $13.85 July 31, 2028 40,000 Acquired
April 2, 2018 ACMR Warrant (Right to Buy) Class A Common Stock (397,502) $7.50 May 17, 2023 397,502 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

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Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
July 31, 2018 ACMR Warrant (Right to Buy) [F1]→ Class A Common Stock (397,502) 397,502 Indirect
Nov. 2, 2017 ACMR Class A Common Stock 84,386 Direct
Nov. 2, 2017 ACMR Class B Common Stock 50,001 Direct
Nov. 2, 2017 ACMR Stock Option→ Class A Common Stock (33,334) 33,334 Direct

Compensation (DEF 14A)

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Matched by name from proxy statements (DEF 14A) — verify against the filing.

ACMR

Chief Executive Officer and President,ACM Research (Shanghai), Inc.
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $170,907 $311,849 · · · · $4,350 $487,106
2024 $206,673 $189,540 · · · · $3,635 $399,848
2023 $203,317 $170,280 · · · · $3,674 $9,199,536

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.