Tracy Liu

CIK 1721299 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 2, 2017 · Latest: Nov. 2, 2017

On this page

Insider at

Insider transactions

0 buys (P) 5 sells (S) Net: $-3,345,782 + 28 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

28 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 11, 2026 ACMR S 10b5-1 3,377 $48.25 $162,940 110,772 Direct -2.96% Disposed 56.9% (price as of 2026-08-20)
March 11, 2026 ACMR S 10b5-1 11,623 $47.81 $555,696 114,149 Direct -9.24% Disposed 58.3% (price as of 2026-08-20)
March 10, 2026 ACMR S 10b5-1 12,784 $48.19 $616,061 110,772 Direct -10.35% Disposed 57.1% (price as of 2026-08-20)
March 10, 2026 ACMR S 10b5-1 32,216 $47.06 $1,516,085 123,556 Direct -20.68% Disposed 60.8% (price as of 2026-08-20)
Sept. 17, 2025 ACMR S 10b5-1 15,000 $33.00 $495,000 110,772 Direct -11.93% Disposed 129.3% (price as of 2026-08-20)
July 15, 2025 ACMR S 10b5-1 15,000 $30.00 $450,000 110,772 Direct -11.93% Disposed 152.3% (price as of 2026-08-20)
Feb. 28, 2024 ACMR S 10b5-1 12,500 $25.20 $315,000 110,772 Direct -10.14% Disposed 200.3% (price as of 2026-08-20)
Dec. 26, 2023 ACMR S 10b5-1 10,000 $20.00 $200,000 110,772 Direct -8.28% Disposed 278.4% (price as of 2026-08-20)
Nov. 20, 2023 ACMR S 10b5-1 15,000 $17.91 $268,650 36,924 Direct -28.89% Disposed 322.6% (price as of 2026-08-20)
Feb. 12, 2021 ACMR S 10b5-1 2,000 $120.00 $240,000 36,924 Direct -5.14% Disposed 89.2% (price as of 2026-08-20)
Feb. 10, 2021 ACMR S 10b5-1 1,600 $110.00 $176,000 38,924 Direct -3.95% Disposed 106.4% (price as of 2026-08-20)
Feb. 9, 2021 ACMR S 10b5-1 400 $110.00 $44,000 40,524 Direct -0.98% Disposed 106.4% (price as of 2026-08-20)
Jan. 6, 2021 ACMR S 10b5-1 2,000 $100.00 $200,000 40,924 Direct -4.66% Disposed 127.1% (price as of 2026-08-20)

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 11, 2026 ACMR Stock Option Class A Common Stock (15,000) $1.00 Dec. 27, 2026 15,000 Disposed
March 10, 2026 ACMR Stock Option Class A Common Stock (45,000) $1.00 Dec. 27, 2026 45,000 Disposed
Sept. 17, 2025 ACMR Stock Option Class A Common Stock (15,000) $1.00 Dec. 27, 2026 15,000 Disposed
Aug. 12, 2025 ACMR Stock Option Class A Common Stock (20,000) $24.93 Aug. 11, 2035 20,000 Acquired
July 15, 2025 ACMR Stock Option Class A Common Stock (15,000) $1.00 Dec. 27, 2026 15,000 Disposed
Aug. 12, 2024 ACMR Stock Option Class A Common Stock (20,000) $18.89 Aug. 11, 2034 20,000 Acquired
Feb. 28, 2024 ACMR Stock Option Class A Common Stock (12,500) $5.60 April 22, 2029 12,500 Disposed
Dec. 26, 2023 ACMR Stock Option Class A Common Stock (10,000) $5.60 April 22, 2029 10,000 Disposed
Nov. 20, 2023 ACMR Stock Option Class A Common Stock (15,000) $7.36 March 19, 2030 15,000 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (24,000) — Aug. 9, 2033 24,000 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (30,000) — Aug. 9, 2033 30,000 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (24,000) $13.24 Aug. 9, 2033 24,000 Disposed
Aug. 10, 2023 ACMR Stock Option Class A Common Stock (30,000) $13.24 Aug. 9, 2033 30,000 Disposed
June 30, 2022 ACMR Stock Option Class A Common Stock (24,000) $16.83 June 29, 2032 24,000 Acquired
Feb. 22, 2021 ACMR Stock Option Class A Common Stock (5,000) — Feb. 21, 2031 5,000 Acquired
Feb. 22, 2021 ACMR Stock Option Class A Common Stock (5,000) $119.98 Feb. 21, 2031 5,000 Acquired
Sept. 10, 2020 ACMR Stock Option Class A Common Stock (6,000) $16.81 April 22, 2029 6,000 Disposed
March 20, 2020 ACMR Stock Option Class A Common Stock (5,000) $22.07 March 19, 2030 5,000 Acquired
March 18, 2020 ACMR Stock Option Class A Common Stock (20,000) $3.00 Dec. 27, 2026 20,000 Disposed

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

Initial ownership (Form 3) 5 holdings

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

Date Ticker Security Shares Ownership
June 24, 2026 AXTI Common Stock 2,500 Direct
June 24, 2026 AXTI Common Stock 726 Direct
Nov. 2, 2017 ACMR Class A Common Stock 2,400 Direct
Nov. 2, 2017 ACMR Stock Option→ Class A Common Stock (50,000) 50,000 Direct
Nov. 2, 2017 ACMR Stock Option→ Class A Common Stock (16,667) 16,667 Direct