Curtis Liu
Insider
First SEC filing: Sept. 21, 2021 · Latest: June 16, 2026
Insider at
Insider transactions
0 buys (P)
5 sells (S)
Net: $-1,010,472
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. 17, 2026 | AMPL | F | 53,878 | $13.03 | $702,030 | 950,316 Direct | -5.37% | Disposed | 14.2% (price as of 2026-10-05) |
| July 8, 2026 | AMPL | G | 175,000 | · | · | 7,207,208 Indirect | -2.37% | Disposed | (price as of 2026-10-05) |
| July 8, 2026 | AMPL | G | 175,000 | · | · | 175,000 Indirect | · | Acquired | (price as of 2026-10-05) |
| June 1, 2026 | AMPL | S 10b5-1 | 22,786 | $8.03 | $182,972 | 1,004,194 Direct | -2.22% | Disposed | 85.3% (price as of 2026-10-05) |
| June 1, 2026 | AMPL | S 10b5-1 | 22,201 | $8.03 | $178,274 | 1,004,779 Direct | -2.16% | Disposed | 85.3% (price as of 2026-10-05) |
| May 15, 2026 | AMPL | F | 40,279 | $6.06 | $244,091 | 1,026,980 Direct | -3.77% | Disposed | 145.5% (price as of 2026-10-05) |
| May 4, 2026 | AMPL | S 10b5-1 | 17,586 | $8.12 | $142,798 | 1,067,259 Direct | -1.62% | Disposed | 83.3% (price as of 2026-10-05) |
| April 15, 2026 | AMPL | A | 417,827 | · | · | 1,084,845 Direct | +62.64% | Acquired | (price as of 2026-10-05) |
| March 6, 2026 | AMPL | S 10b5-1 | 33,201 | $8.01 | $265,940 | 603,756 Direct | -5.21% | Disposed | 85.8% (price as of 2026-10-05) |
| March 5, 2026 | AMPL | S 10b5-1 | 30,061 | $8.00 | $240,488 | 636,957 Direct | -4.51% | Disposed | 86.0% (price as of 2026-10-05) |
| Feb. 15, 2026 | AMPL | F | 26,672 | $6.34 | $169,100 | 730,280 Direct | -3.52% | Disposed | 134.7% (price as of 2026-10-05) |
| Nov. 15, 2025 | AMPL | F | 36,092 | $10.73 | $387,267 | 756,952 Direct | -4.55% | Disposed | 38.7% (price as of 2026-10-05) |
| Aug. 15, 2025 | AMPL | F | 34,301 | $11.47 | $393,432 | 793,044 Direct | -4.15% | Disposed | 29.7% (price as of 2026-10-05) |
| May 15, 2025 | AMPL | F | 25,533 | $12.14 | $309,971 | 827,345 Direct | -2.99% | Disposed | 22.6% (price as of 2026-10-05) |
| April 25, 2025 | AMPL | A | 852,878 | · | · | 852,878 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 1, 2024 | AMPL | M | 23,866 | $4.19 | $99,999 | 23,866 Direct | · | Acquired | 255.1% (price as of 2026-10-05) |
| Feb. 1, 2024 | AMPL | C | 23,866 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 1, 2024 | AMPL | M | 23,866 | · | · | 12,199 Direct | -66.17% | Disposed | (price as of 2026-10-05) |
| Feb. 1, 2024 | AMPL | C | 23,866 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 1, 2023 | AMPL | M | 23,866 | $4.19 | $99,999 | 23,866 Direct | · | Acquired | 255.1% (price as of 2026-10-05) |
| Feb. 1, 2023 | AMPL | C | 23,866 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 1, 2023 | AMPL | M | 23,866 | · | · | 36,065 Direct | -39.82% | Disposed | (price as of 2026-10-05) |
| Feb. 1, 2023 | AMPL | C | 23,866 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | M | 70,000 | $4.19 | $293,300 | 149,228 Indirect | +88.35% | Acquired | 255.1% (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | M | 23,866 | $4.19 | $99,999 | 23,866 Direct | · | Acquired | 255.1% (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | C | 70,000 | · | · | 79,228 Indirect | -46.91% | Disposed | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | C | 23,866 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | M | 70,000 | · | · | 515,515 Indirect | -11.96% | Disposed | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | M | 23,866 | · | · | 59,931 Direct | -28.48% | Disposed | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | C | 70,000 | · | · | 7,334,476 Indirect | +0.96% | Acquired | (price as of 2026-10-05) |
| Feb. 17, 2022 | AMPL | C | 23,866 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 28, 2021 | AMPL | S | 142,000 | $50.91 | $7,229,220 | 79,228 Indirect | -64.19% | Disposed | -70.8% (price as of 2026-10-05) |
| Sept. 28, 2021 | AMPL | S | 158,772 | $50.00 | $7,938,600 | 221,228 Indirect | -41.78% | Disposed | -70.2% (price as of 2026-10-05) |
| Sept. 21, 2021 | AMPL | C | 380,000 | · | · | 7,240,610 Indirect | -4.99% | Disposed | (price as of 2026-10-05) |
| Sept. 21, 2021 | AMPL | C | 380,000 | · | · | 380,000 Indirect | · | Acquired | (price as of 2026-10-05) |
| Aug. 30, 2021 | AMPL | M | 155,084 | · | · | 7,620,610 Indirect | +2.08% | Acquired | (price as of 2026-10-05) |
| Aug. 30, 2021 | AMPL | M | 155,084 | · | · | 117,768 Indirect | -56.84% | Disposed | (price as of 2026-10-05) |
| June 28, 2021 | AMPL | G | 475,000 | · | · | 7,465,526 Indirect | -5.98% | Disposed | (price as of 2026-10-05) |
| June 24, 2021 | AMPL | M | 23,866 | · | · | 7,940,526 Indirect | +0.30% | Acquired | (price as of 2026-10-05) |
| June 24, 2021 | AMPL | M | 23,866 | · | · | 83,797 Direct | -22.17% | Disposed | (price as of 2026-10-05) |
| June 24, 2021 | AMPL | M | 105,000 | · | · | 7,916,660 Indirect | +1.34% | Acquired | (price as of 2026-10-05) |
| June 24, 2021 | AMPL | M | 105,000 | · | · | 272,852 Indirect | -27.79% | 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 |
|---|---|---|---|---|---|---|---|
| July 8, 2026 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 175,000 | Disposed |
| July 8, 2026 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 175,000 | Acquired |
| Feb. 1, 2024 | AMPL | Stock Options (Right to buy) | Class A Common Stock | $4.19 | Dec. 28, 2030 | 23,866 | Disposed |
| Feb. 1, 2024 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 23,866 | Acquired |
| Feb. 1, 2023 | AMPL | Stock Options (Right to buy) | Class A Common Stock | $4.19 | Dec. 28, 2030 | 23,866 | Disposed |
| Feb. 1, 2023 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 23,866 | Acquired |
| Feb. 17, 2022 | AMPL | Stock Option (Right to Buy) | Class A Common Stock | $4.19 | Dec. 28, 2030 | 70,000 | Disposed |
| Feb. 17, 2022 | AMPL | Stock Option (Right to Buy) | Class A Common Stock | $4.19 | Dec. 28, 2030 | 23,866 | Disposed |
| Feb. 17, 2022 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 70,000 | Acquired |
| Feb. 17, 2022 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 23,866 | Acquired |
| Sept. 21, 2021 | AMPL | Class B Common Stock | Class A Common Stock | · | · | 380,000 | Disposed |
| Aug. 30, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock | · | · | 155,084 | Acquired |
| Aug. 30, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] | $4.19 | Dec. 28, 2030 | 155,084 | Disposed |
| June 28, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock | · | · | 475,000 | Disposed |
| June 24, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock | · | · | 23,866 | Acquired |
| June 24, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] | $4.19 | Dec. 28, 2030 | 23,866 | Disposed |
| June 24, 2021 | AMPL | Class B Common Stock [F5] | Class A Common Stock | · | · | 105,000 | Acquired |
| June 24, 2021 | AMPL | Stock Option (Right to Buy) | Common Stock [F5] | $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.
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.