Fuping Chen
Insider
First SEC filing: Jan. 26, 2018 · Latest: Jan. 26, 2018
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-3,981,156
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 3, 2025 | ACMR | M | 20,000 | · | · | 21,165 Direct | -48.58% | Disposed | (price as of 2026-10-02) |
| Dec. 3, 2025 | ACMR | S 10b5-1 | 300 | $33.57 | $10,071 | 0 Direct | -100.00% | Disposed | 148.4% (price as of 2026-10-02) |
| Dec. 3, 2025 | ACMR | S 10b5-1 | 19,700 | $33.05 | $651,085 | 300 Direct | -98.50% | Disposed | 152.3% (price as of 2026-10-02) |
| Dec. 3, 2025 | ACMR | M | 20,000 | $1.77 | $35,400 | 20,000 Direct | · | Acquired | 4610.7% (price as of 2026-10-02) |
| Dec. 2, 2025 | ACMR | M | 100,000 | · | · | 41,165 Direct | -70.84% | Disposed | (price as of 2026-10-02) |
| Dec. 2, 2025 | ACMR | S 10b5-1 | 100,000 | $33.20 | $3,320,000 | 0 Direct | -100.00% | Disposed | 151.1% (price as of 2026-10-02) |
| Dec. 2, 2025 | ACMR | M | 100,000 | $1.77 | $177,000 | 100,000 Direct | · | Acquired | 4610.7% (price as of 2026-10-02) |
| Sept. 21, 2024 | ACMR | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | M | 8,835 | · | · | 141,165 Direct | -5.89% | Disposed | (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | M | 50,001 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | M | 46,164 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | S 10b5-1 | 105,000 | $15.00 | $1,575,000 | 0 Direct | -100.00% | Disposed | 455.9% (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | M | 8,835 | $1.77 | $15,638 | 105,000 Direct | +9.19% | Acquired | 4610.7% (price as of 2026-10-02) |
| Aug. 23, 2023 | ACMR | M | 96,165 | $1.00 | $96,165 | 96,165 Direct | · | Acquired | 8238.0% (price as of 2026-10-02) |
| Dec. 30, 2022 | ACMR | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 30, 2022 | ACMR | A | 13,500 | · | · | 13,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 14, 2021 | ACMR | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2021 | ACMR | M | 30,000 | · | · | 16,667 Direct | -64.29% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2021 | ACMR | S 10b5-1 | 30,000 | $120.00 | $3,600,000 | 0 Direct | -100.00% | Disposed | 108.4% (price as of 2026-10-02) |
| Feb. 12, 2021 | ACMR | M | 30,000 | $3.00 | $90,000 | 30,000 Direct | · | Acquired | 8238.0% (price as of 2026-10-02) |
| Sept. 30, 2019 | ACMR | D | 17,946 | $10.20 | $183,049 | 15,388 Direct | -53.84% | Disposed | 2352.4% (price as of 2026-10-02) |
| Aug. 23, 2019 | ACMR | D | 17,946 | $13.20 | $236,887 | 0 Direct | -100.00% | Disposed | 1795.0% (price as of 2026-10-02) |
| Aug. 4, 2019 | ACMR | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Dec. 3, 2025 | ACMR | Stock Option | Class A Common Stock | $1.77 | Jan. 24, 2028 | 20,000 | Disposed |
| Dec. 2, 2025 | ACMR | Stock Option | Class A Common Stock | $1.77 | Jan. 24, 2028 | 100,000 | Disposed |
| Sept. 21, 2024 | ACMR | Stock Option | Class A Common Stock | $28.42 | July 27, 2030 | 30,000 | Acquired |
| Aug. 23, 2023 | ACMR | Stock Option | Class A Common Stock | $1.77 | Jan. 24, 2028 | 8,835 | Disposed |
| Aug. 23, 2023 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 50,001 | Disposed |
| Aug. 23, 2023 | ACMR | Stock Option | Class A Common Stock | $1.00 | Dec. 27, 2026 | 46,164 | Disposed |
| Dec. 30, 2022 | ACMR | Stock Option | Class A Common Stock | $25.45 | March 3, 2032 | 3,000 | Acquired |
| Dec. 30, 2022 | ACMR | Stock Option | Class A Common Stock | $25.45 | March 3, 2032 | 13,500 | Acquired |
| Sept. 14, 2021 | ACMR | Stock Option | Class A Common Stock | $85.27 | July 27, 2030 | 10,000 | Acquired |
| Feb. 12, 2021 | ACMR | Stock Option | Class A Common Stock | $3.00 | Dec. 27, 2026 | 30,000 | Disposed |
| Sept. 30, 2019 | ACMR | Stock Option | Class A Common Stock | $3.00 | Dec. 27, 2026 | 17,946 | Disposed |
| Aug. 4, 2019 | ACMR | Stock Option | Class A Common Stock | $16.00 | Aug. 3, 2029 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $164,468 | $182,520 | · | · | · | · | $3,232 | $350,220 |
| 2022 | $135,282 | $98,142 | · | $361,556 | · | · | $205 | $595,185 |
| 2020 | $103,871 | $95,700 | · | $793,157 | · | · | $15,660 | $1,008,388 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.