Liu Curtis 13D and 13G filings for Amplitude, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2024-11-13 7:15 pm Unchanged | 2024-11-01 | 13G | Amplitude, Inc. AMPL | Liu Curtis | 8,094,719 7.900% | 0 (Unchanged) | Filing |
| 2024-02-13 5:17 pm Purchase | 2023-12-31 | 13G | Amplitude, Inc. AMPL | Liu Curtis | 8,094,719 8.600% | 23,866 (+0.30%) | Filing |
| 2023-02-13 4:16 pm Purchase | 2022-12-31 | 13G | Amplitude, Inc. AMPL | Liu Curtis | 8,070,853 9.600% | 23,866 (+0.30%) | Filing |
| 2022-02-14 4:37 pm Purchase | 2021-12-31 | 13G | Amplitude, Inc. AMPL | Liu Curtis | 8,046,987 12.100% | 8,046,987 (New Position) | Filing |