05/21/2025
4:22 PM | Amplitude (Issuer)
Wong Catherine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/19/2025
4:22 PM | Amplitude (Issuer)
Casey Andrew (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/19/2025
4:22 PM | Amplitude (Issuer)
HANSEN THOMAS NEERGAARD (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/19/2025
4:22 PM | Amplitude (Issuer)
Liu Curtis (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/19/2025
3:23 PM | Amplitude (Subject)
Wong Catherine (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/12/2025
3:53 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
04/29/2025
3:59 PM | Amplitude (Issuer)
Liu Curtis (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
04/29/2025
3:59 PM | Amplitude (Issuer)
Casey Andrew (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
04/25/2025
3:30 PM | Amplitude (Filer)
| Form DEF 14A | |
04/25/2025
3:32 PM | Amplitude (Filer)
| Form DEFA14A | |
04/08/2025
5:13 PM | Amplitude (Issuer)
Tzuo Tien (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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04/08/2025
5:26 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/12/2025
3:32 PM | Amplitude (Issuer)
Wong Catherine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/11/2025
3:22 PM | Amplitude (Subject)
Wong Catherine (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
02/26/2025
4:15 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/25/2025
8:23 PM | Amplitude (Subject)
SC US , LTD. (0001607841) (Filed by)
| Form SCHEDULE 13D/A | |
02/25/2025
3:52 PM | Amplitude (Issuer)
Tzuo Tien (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/25/2025
3:50 PM | Amplitude (Issuer)
Tzuo Tien (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
02/25/2025
3:16 PM | Amplitude (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/24/2025
5:22 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/24/2025
3:19 PM | Amplitude (Subject)
Vishria Eric (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
02/20/2025
3:47 PM | Amplitude (Filer)
| Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
02/19/2025
3:07 PM | Amplitude (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/18/2025
3:30 PM | Amplitude (Issuer)
Casey Andrew (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/18/2025
3:30 PM | Amplitude (Issuer)
HANSEN THOMAS NEERGAARD (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/29/2025
4:06 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/07/2025
3:55 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/16/2024
5:24 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/13/2024
3:27 PM | Amplitude (Subject)
Vishria Eric (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
11/18/2024
4:11 PM | Amplitude (Subject)
Wong Catherine (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
11/14/2024
3:51 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/13/2024
6:15 PM | Amplitude (Subject)
Liu Curtis (Filed by)
| Form SC 13G/A | |
11/13/2024
3:30 PM | Amplitude (Subject)
Skates Spenser (Filed by)
| Form SC 13G/A | |
10/08/2024
3:47 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/17/2024
4:06 PM | Amplitude (Issuer)
Casey Andrew (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/20/2024
3:15 PM | Amplitude (Issuer)
Wong Catherine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/16/2024
3:27 PM | Amplitude (Issuer)
HANSEN THOMAS NEERGAARD (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/05/2024
8:06 AM | Amplitude (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/09/2024
8:44 PM | Amplitude (Issuer)
Vishria Eric (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
3:54 PM | Amplitude (Issuer)
Schultz Erica (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
3:54 PM | Amplitude (Issuer)
Whitehurst James M (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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06/13/2024
3:54 PM | Amplitude (Issuer)
Steele Elisa (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
3:54 PM | Amplitude (Issuer)
Wong Catherine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/13/2024
3:54 PM | Amplitude (Issuer)
Gill Ronald S (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
