Curtis Liu
CIK 1883022 · View on SEC EDGAR ↗
First SEC filing: Sept. 21, 2021 · Latest: June 16, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 1, 2026 | AMPL | S 10b5-1 | 22,786 | $8.03 | $182,972 | 1,004,194 Direct | -2.22% | Disposed | 58.1% (price as of 2026-08-20) |
| June 1, 2026 | AMPL | S | 22,201 | $8.03 | $178,183 | 1,004,779 | — | — | 58.1% (price as of 2026-08-20) |
| Sept. 28, 2021 | AMPL | S | 142,000 | $50.91 | $7,229,220 | 79,228 Indirect | -64.19% | Disposed | -75.1% (price as of 2026-08-20) |
| Sept. 28, 2021 | AMPL | S | 158,772 | $50.00 | $7,938,600 | 221,228 Indirect | -41.78% | Disposed | -74.6% (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 |
|---|---|---|---|---|---|---|---|
| July 8, 2026 | AMPL | Class B Common Stock | Class A Common Stock (175,000) | — | — | 175,000 | Disposed |
| July 8, 2026 | AMPL | Class B Common Stock | Class A Common Stock (175,000) | — | — | 175,000 | Acquired |
| Sept. 21, 2021 | AMPL | Class B Common Stock | Class A Common Stock (380,000) | — | — | 380,000 | Disposed |
| Aug. 30, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock (155,084) | — | — | 155,084 | Acquired |
| Aug. 30, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] (155,084) | $4.19 | Dec. 28, 2030 | 155,084 | Disposed |
| June 28, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock (475,000) | — | — | 475,000 | Disposed |
| June 24, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock (23,866) | — | — | 23,866 | Acquired |
| June 24, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] (23,866) | $4.19 | Dec. 28, 2030 | 23,866 | Disposed |
| June 24, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock (105,000) | — | — | 105,000 | Acquired |
| June 24, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] (105,000) | $4.19 | Dec. 28, 2030 | 105,000 | Disposed |
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 |
|---|---|---|---|---|
| Sept. 21, 2021 | AMPL | Class B Common Stock→ Class A Common Stock (7,620,610) | 7,620,610 | Indirect |
| Sept. 21, 2021 | AMPL | Stock Option (Right to Buy)→ Class A Common Stock (117,768) | 117,768 | Indirect |
| Sept. 21, 2021 | AMPL | Stock Option (Right to Buy)→ Class A Common Stock (585,515) | 585,515 | Indirect |
| Sept. 21, 2021 | AMPL | Stock Option (Right to Buy)→ Class A Common Stock (83,797) | 83,797 | Direct |
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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $393,276 | — | $7,786,776 | — | $150,675 | — | — | $8,330,727 |
| 2024 | $350,000 | — | — | — | — | — | — | $350,000 |
| 2023 | $266,667 | — | — | — | — | — | — | $267,667 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.