Lisa Feng

CIK 1779777 · View on SEC EDGAR ↗

Insider

First SEC filing: June 17, 2019 · Latest: June 17, 2019

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Insider at

Insider transactions

0 buys (P) 6 sells (S) Net: $-2,439,240 + 33 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

33 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 6, 2026 ACMR S 10b5-1 200 $46.58 $9,316 50,001 Direct -0.40% Disposed 68.4% (price as of 2026-08-21)
March 6, 2026 ACMR S 10b5-1 14,800 $46.07 $681,836 50,201 Direct -22.77% Disposed 70.2% (price as of 2026-08-21)
March 5, 2026 ACMR S 10b5-1 6,950 $50.24 $349,168 50,001 Direct -12.20% Disposed 56.1% (price as of 2026-08-21)
March 5, 2026 ACMR S 10b5-1 8,050 $49.81 $400,970 56,951 Direct -12.38% Disposed 57.5% (price as of 2026-08-21)
Nov. 13, 2025 ACMR S 10b5-1 15,000 $33.77 $506,550 50,001 Direct -23.08% Disposed 132.2% (price as of 2026-08-21)
Nov. 12, 2025 ACMR S 10b5-1 15,000 $32.76 $491,400 50,001 Direct -23.08% Disposed 139.4% (price as of 2026-08-21)
July 7, 2025 ACMR S 10b5-1 15,000 $28.00 $420,000 50,001 Direct -23.08% Disposed 180.1% (price as of 2026-08-21)
June 24, 2025 ACMR S 10b5-1 15,000 $26.00 $390,000 50,001 Direct -23.08% Disposed 201.7% (price as of 2026-08-21)
Feb. 28, 2024 ACMR S 10b5-1 7,500 $25.20 $189,000 50,001 Direct -13.04% Disposed 211.2% (price as of 2026-08-21)
Dec. 26, 2023 ACMR S 10b5-1 7,500 $20.00 $150,000 50,001 Direct -13.04% Disposed 292.2% (price as of 2026-08-21)
July 3, 2023 ACMR S 10b5-1 22,500 $15.00 $337,500 50,001 Direct -31.03% Disposed 422.9% (price as of 2026-08-21)
March 9, 2023 ACMR S 10b5-1 1,110 $12.55 $13,930 50,001 Direct -2.17% Disposed 524.9% (price as of 2026-08-21)
March 9, 2023 ACMR S 10b5-1 9,144 $12.44 $113,751 51,111 Direct -15.18% Disposed 530.5% (price as of 2026-08-21)
March 9, 2023 ACMR S 10b5-1 9,546 $12.33 $117,702 60,255 Direct -13.68% Disposed 536.1% (price as of 2026-08-21)
March 9, 2023 ACMR S 10b5-1 2,700 $12.21 $32,967 69,801 Direct -3.72% Disposed 542.3% (price as of 2026-08-21)
Sept. 16, 2020 ACMR S 10b5-1 15,000 $72.30 $1,084,500 10,760 Direct -58.23% Disposed 225.4% (price as of 2026-08-21)

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.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 6, 2026 ACMR Stock Option Class A Common Stock (15,000) $4.55 Nov. 3, 2029 15,000 Disposed
March 5, 2026 ACMR Stock Option Class A Common Stock (15,000) $4.55 Nov. 3, 2029 15,000 Disposed
Nov. 13, 2025 ACMR Stock Option Class A Common Stock (15,000) $5.60 April 22, 2029 15,000 Disposed
Nov. 12, 2025 ACMR Stock Option Class A Common Stock (15,000) $5.60 April 22, 2029 15,000 Disposed
July 7, 2025 ACMR Stock Option Class A Common Stock (15,000) $5.60 April 22, 2029 15,000 Disposed
June 24, 2025 ACMR Stock Option Class A Common Stock (15,000) $5.60 April 22, 2029 15,000 Disposed
Feb. 28, 2024 ACMR Stock Option Class A Common Stock (7,500) $5.60 April 22, 2029 7,500 Disposed
Dec. 26, 2023 ACMR Stock Option Class A Common Stock (7,500) $5.60 April 22, 2029 7,500 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (100,000) — Aug. 9, 2033 100,000 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (100,000) $13.24 Aug. 9, 2033 100,000 Disposed
July 3, 2023 ACMR Stock Option Class A Common Stock (22,500) $1.77 Jan. 24, 2028 22,500 Disposed
March 9, 2023 ACMR Stock Option Class A Common Stock (22,500) $1.77 Jan. 24, 2028 22,500 Disposed
Dec. 31, 2022 ACMR Stock Option Class A Common Stock (22,500) $25.45 March 3, 2032 22,500 Acquired
Nov. 3, 2021 ACMR Stock Option Class A Common Stock (2,437) $5.60 Nov. 1, 2027 2,437 Disposed
Feb. 26, 2021 ACMR Stock Option Class A Common Stock (3,470) $5.60 Nov. 1, 2027 3,470 Disposed
Sept. 16, 2020 ACMR Stock Option Class A Common Stock (15,000) $5.31 Jan. 24, 2028 15,000 Disposed
April 28, 2020 ACMR Stock Option Class A Common Stock (10,000) $38.26 April 27, 2030 10,000 Acquired
March 18, 2020 ACMR Stock Option Class A Common Stock (3,817) $5.60 Nov. 1, 2027 3,817 Disposed
Nov. 4, 2019 ACMR Stock Option Class A Common Stock (10,000) $13.64 Nov. 3, 2029 10,000 Acquired

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

Initial ownership (Form 3) 4 holdings

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

Date Ticker Security Shares Ownership
June 17, 2019 ACMR Class A Common Stock 6,943 Direct
June 17, 2019 ACMR Stock Option→ Class A Common Stock (9,724) 9,724 Direct
June 17, 2019 ACMR Stock Option→ Class A Common Stock (30,000) 30,000 Direct
June 17, 2019 ACMR Stock Option→ Class A Common Stock (25,000) 25,000 Direct

Compensation (DEF 14A)

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

ACMR

CFO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $179,246 $205,117 — — — — $6,058 $390,421
2024 $201,641 $106,704 — — — — $5,063 $313,408
2023 $196,532 $93,654 — — — — $4,264 $4,273,155

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