Tracy Liu
Insider
First SEC filing: Nov. 2, 2017 · Latest: Nov. 2, 2017
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net: $-2,850,782
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | ACMR | A | 6,400 | · | · | 6,400 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 12, 2026 | ACMR | A | 728 | · | · | 728 Direct | · | Acquired | (price as of 2026-10-05) |
| March 11, 2026 | ACMR | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 11, 2026 | ACMR | S 10b5-1 | 3,377 | $48.25 | $162,940 | 110,772 Direct | -2.96% | Disposed | 57.9% (price as of 2026-10-05) |
| March 11, 2026 | ACMR | S 10b5-1 | 11,623 | $47.81 | $555,696 | 114,149 Direct | -9.24% | Disposed | 59.3% (price as of 2026-10-05) |
| March 11, 2026 | ACMR | M | 15,000 | $1.00 | $15,000 | 125,772 Direct | +13.54% | Acquired | 7517.0% (price as of 2026-10-05) |
| March 10, 2026 | ACMR | M | 45,000 | · | · | 15,000 Direct | -75.00% | Disposed | (price as of 2026-10-05) |
| March 10, 2026 | ACMR | S 10b5-1 | 12,784 | $48.19 | $616,061 | 110,772 Direct | -10.35% | Disposed | 58.1% (price as of 2026-10-05) |
| March 10, 2026 | ACMR | S 10b5-1 | 32,216 | $47.06 | $1,516,085 | 123,556 Direct | -20.68% | Disposed | 61.9% (price as of 2026-10-05) |
| March 10, 2026 | ACMR | M | 45,000 | $1.00 | $45,000 | 155,772 Direct | +40.62% | Acquired | 7517.0% (price as of 2026-10-05) |
| Sept. 17, 2025 | ACMR | M | 15,000 | · | · | 60,000 Direct | -20.00% | Disposed | (price as of 2026-10-05) |
| Sept. 17, 2025 | ACMR | S 10b5-1 | 15,000 | $33.00 | $495,000 | 110,772 Direct | -11.93% | Disposed | 130.8% (price as of 2026-10-05) |
| Sept. 17, 2025 | ACMR | M | 15,000 | $1.00 | $15,000 | 125,772 Direct | +13.54% | Acquired | 7517.0% (price as of 2026-10-05) |
| Aug. 12, 2025 | ACMR | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| July 15, 2025 | ACMR | M | 15,000 | · | · | 75,000 Direct | -16.67% | Disposed | (price as of 2026-10-05) |
| July 15, 2025 | ACMR | S 10b5-1 | 15,000 | $30.00 | $450,000 | 110,772 Direct | -11.93% | Disposed | 153.9% (price as of 2026-10-05) |
| July 15, 2025 | ACMR | M | 15,000 | $1.00 | $15,000 | 125,772 Direct | +13.54% | Acquired | 7517.0% (price as of 2026-10-05) |
| Aug. 12, 2024 | ACMR | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 28, 2024 | ACMR | M | 12,500 | · | · | 19,500 Direct | -39.06% | Disposed | (price as of 2026-10-05) |
| Feb. 28, 2024 | ACMR | S 10b5-1 | 12,500 | $25.20 | $315,000 | 110,772 Direct | -10.14% | Disposed | 202.3% (price as of 2026-10-05) |
| Feb. 28, 2024 | ACMR | M | 12,500 | $5.60 | $70,000 | 123,272 Direct | +11.28% | Acquired | 1260.2% (price as of 2026-10-05) |
| Dec. 26, 2023 | ACMR | M | 10,000 | · | · | 32,000 Direct | -23.81% | Disposed | (price as of 2026-10-05) |
| Dec. 26, 2023 | ACMR | S 10b5-1 | 10,000 | $20.00 | $200,000 | 110,772 Direct | -8.28% | Disposed | 280.9% (price as of 2026-10-05) |
| Dec. 26, 2023 | ACMR | M | 10,000 | $5.60 | $56,000 | 120,772 Direct | +9.03% | Acquired | 1260.2% (price as of 2026-10-05) |
| Nov. 20, 2023 | ACMR | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Nov. 20, 2023 | ACMR | S 10b5-1 | 15,000 | $17.91 | $268,650 | 36,924 Direct | -28.89% | Disposed | 325.3% (price as of 2026-10-05) |
| Nov. 20, 2023 | ACMR | M | 15,000 | $7.36 | $110,400 | 51,924 Direct | +40.62% | Acquired | 934.9% (price as of 2026-10-05) |
| Aug. 10, 2023 | ACMR | A | 24,000 | · | · | 24,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Aug. 10, 2023 | ACMR | A | 30,000 | · | · | 30,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Aug. 10, 2023 | ACMR | A | 24,000 | · | · | 24,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Aug. 10, 2023 | ACMR | A | 30,000 | · | · | 30,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| June 30, 2022 | ACMR | A | 24,000 | · | · | 24,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 22, 2021 | ACMR | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 22, 2021 | ACMR | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2021 | ACMR | S 10b5-1 | 2,000 | $120.00 | $240,000 | 36,924 Direct | -5.14% | Disposed | 90.4% (price as of 2026-10-05) |
| Feb. 10, 2021 | ACMR | S 10b5-1 | 1,600 | $110.00 | $176,000 | 38,924 Direct | -3.95% | Disposed | 107.7% (price as of 2026-10-05) |
| Feb. 9, 2021 | ACMR | S 10b5-1 | 400 | $110.00 | $44,000 | 40,524 Direct | -0.98% | Disposed | 107.7% (price as of 2026-10-05) |
| Jan. 6, 2021 | ACMR | S 10b5-1 | 2,000 | $100.00 | $200,000 | 40,924 Direct | -4.66% | Disposed | 128.5% (price as of 2026-10-05) |
| Sept. 10, 2020 | ACMR | M | 6,000 | · | · | 14,000 Direct | -30.00% | Disposed | (price as of 2026-10-05) |
| Sept. 10, 2020 | ACMR | M | 6,000 | $16.81 | $100,860 | 42,924 Direct | +16.25% | Acquired | 1259.4% (price as of 2026-10-05) |
| March 20, 2020 | ACMR | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 18, 2020 | ACMR | M | 20,000 | · | · | 30,000 Direct | -40.00% | Disposed | (price as of 2026-10-05) |
| March 18, 2020 | ACMR | M | 20,000 | $3.00 | $60,000 | 36,924 Direct | +118.18% | Acquired | 7517.0% (price as of 2026-10-05) |
| Aug. 23, 2019 | ACMR | D | 2,143 | $13.20 | $28,288 | 16,924 Direct | -11.24% | Disposed | 1631.1% (price as of 2026-10-05) |
| April 23, 2019 | ACMR | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 28, 2018 | ACMR | M | 16,667 | $3.00 | $50,001 | 19,067 Direct | +694.46% | Acquired | 7517.0% (price as of 2026-10-05) |
| June 28, 2018 | ACMR | M | 16,667 | · | · | 0 Direct | -100.00% | Disposed | (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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | ACMR | Stock Option | Class A Common Stock | $81.26 | Aug. 11, 2036 | 6,400 | Acquired |
| Aug. 12, 2026 | ACMR | Restricted Stock Units | Class A Common Stock | · | · | 728 | Acquired |
| March 11, 2026 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 15,000 | Disposed |
| March 10, 2026 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 45,000 | Disposed |
| Sept. 17, 2025 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 15,000 | Disposed |
| Aug. 12, 2025 | ACMR | Stock Option | Class A Common Stock | $24.93 | Aug. 11, 2035 | 20,000 | Acquired |
| July 15, 2025 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 15,000 | Disposed |
| Aug. 12, 2024 | ACMR | Stock Option | Class A Common Stock | $18.89 | Aug. 11, 2034 | 20,000 | Acquired |
| Feb. 28, 2024 | ACMR | Stock Option | Class A Common Stock | $5.60 | April 22, 2029 | 12,500 | Disposed |
| Dec. 26, 2023 | ACMR | Stock Option | Class A Common Stock | $5.60 | April 22, 2029 | 10,000 | Disposed |
| Nov. 20, 2023 | ACMR | Stock Option | Class A Common Stock | $7.36 | March 19, 2030 | 15,000 | Disposed |
| Aug. 10, 2023 | ACMR | Stock Option | Class A Common Stock | · | Aug. 9, 2033 | 24,000 | Disposed |
| Aug. 10, 2023 | ACMR | Stock Option | Class A Common Stock | · | Aug. 9, 2033 | 30,000 | Disposed |
| Aug. 10, 2023 | ACMR | Stock Option | Class A Common Stock | $13.24 | Aug. 9, 2033 | 24,000 | Disposed |
| Aug. 10, 2023 | ACMR | Stock Option | Class A Common Stock | $13.24 | Aug. 9, 2033 | 30,000 | Disposed |
| June 30, 2022 | ACMR | Stock Option | Class A Common Stock | $16.83 | June 29, 2032 | 24,000 | Acquired |
| Feb. 22, 2021 | ACMR | Stock Option | Class A Common Stock | · | Feb. 21, 2031 | 5,000 | Acquired |
| Feb. 22, 2021 | ACMR | Stock Option | Class A Common Stock | $119.98 | Feb. 21, 2031 | 5,000 | Acquired |
| Sept. 10, 2020 | ACMR | Stock Option | Class A Common Stock | $16.81 | April 22, 2029 | 6,000 | Disposed |
| March 20, 2020 | ACMR | Stock Option | Class A Common Stock | $22.07 | March 19, 2030 | 5,000 | Acquired |
| March 18, 2020 | ACMR | Stock Option | Class A Common Stock | $3.00 | Dec. 27, 2026 | 20,000 | Disposed |
| April 23, 2019 | ACMR | Stock Options | Class A Common Stock | $16.81 | April 22, 2029 | 20,000 | Acquired |
| June 28, 2018 | ACMR | Stock Option | Class A Common Stock | $3.00 | Dec. 27, 2026 | 16,667 | 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.