Liu Curtis
SEC CIK 1883022 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AMPL | Amplitude, Inc. | CTO, Dir, 10% | 950.3K | — | $16.18M | 23 | 2021-09-21 | 2026-08-17 |
Most active insiders at AMPL, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Skates Spenser | CEO, Pres, Dir, 10% | — | $7.19M |
| 2 | Crook Nathaniel Glenn | Chief Commercial Off | — | $3.90M |
| 3 | Liu Curtis | CTO, Dir, 10% | — | $1.01M |
| 4 | Schultz Erica | Dir | — | $312.3K |
| 5 | Casey Andrew | CFO | $299.7K | — |
| 6 | Wong Catherine | Dir | — | $50.6K |
| 7 | Tzuo Tien | Dir | — | — |
| 8 | HANSEN THOMAS NEERGAARD | Pres | — | — |
| 9 | Grady Patrick W | Dir, 10% | — | — |
| 10 | Gill Ronald S | Dir | — | — |
Transactions 23
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-18 17:19 | 2026-08-17 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $13.03 | -53.9K | 950.3K | -5% | -$702.0K | |
| AT | 2026-06-16 17:15 | 2026-06-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $8.03 | -22.8K | 1.00M | -2% | -$182.9K |
| T | 2026-06-03 17:17 | 2026-06-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $8.03 | -22.2K | 1.00M | -2% | -$178.2K |
| 2026-05-19 16:28 | 2026-05-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $6.06 | -40.3K | 1.03M | -4% | -$244.1K | |
| T | 2026-05-06 16:52 | 2026-05-04 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $8.12 | -17.6K | 1.07M | -2% | -$142.9K |
| 2026-04-17 17:55 | 2026-04-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | A - Grant | $0.00 | +417.8K | 1.08M | +63% | $0 | |
| T | 2026-03-10 | 2026-03-06 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $8.01 | -33.2K | 603.8K | -5% | -$265.9K |
| T | 2026-03-09 | 2026-03-05 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $8.00 | -30.1K | 637.0K | -5% | -$240.5K |
| 2026-02-17 | 2026-02-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $6.34 | -26.7K | 730.3K | -4% | -$169.1K | |
| 2025-11-18 | 2025-11-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $10.73 | -36.1K | 757.0K | -5% | -$387.3K | |
| 2025-08-19 | 2025-08-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $11.47 | -34.3K | 793.0K | -4% | -$393.4K | |
| 2025-05-19 | 2025-05-15 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | F - Tax | $12.14 | -25.5K | 827.3K | -3% | -$310.0K | |
| 2025-04-29 | 2025-04-25 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | A - Grant | $0.00 | +852.9K | 852.9K | New | $0 | |
| D | 2024-02-05 | 2024-02-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | C - Cnv Deriv | $0.00 | -23.9K | 0 | -100% | $0 |
| D | 2024-02-05 | 2024-02-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | M - OptEx | $4.19 | +23.9K | 23.9K | New | +$100.0K |
| D | 2023-02-03 | 2023-02-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | M - OptEx | $4.19 | +23.9K | 23.9K | New | +$100.0K |
| D | 2023-02-03 | 2023-02-01 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | C - Cnv Deriv | $0.00 | -23.9K | 0 | -100% | $0 |
| D | 2022-02-23 | 2022-02-17 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | M - OptEx | $4.19 | +23.9K | 23.9K | New | +$100.0K |
| DI | 2022-02-23 | 2022-02-17 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | M - OptEx | $4.19 | +70.0K | 149.2K | +88% | +$293.3K |
| D | 2022-02-23 | 2022-02-17 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | C - Cnv Deriv | $0.00 | -23.9K | 0 | -100% | $0 |
| DI | 2022-02-23 | 2022-02-17 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | C - Cnv Deriv | $0.00 | -70.0K | 79.2K | -47% | $0 |
| MI | 2021-09-30 | 2021-09-28 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | S - Sale | $50.43 | -300.8K | 79.2K | -79% | -$15.17M |
| DI | 2021-09-23 | 2021-09-21 | AMPL | Amplitude, Inc. | Liu Curtis | CTO, Dir, 10% | C - Cnv Deriv | $0.00 | +380.0K | 380.0K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations