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AMPL   Amplitude, Inc.   |  1866692

Available Fillings Total Fillings:362
Form Type Form Count
8-K 24
UPLOAD 3
10-Q 8
S-8 4
8-A12B 1
CORRESP 4
SC 13D/A 4
SC 13D 1
SC 13G 14
POS AM 1
DRSLTR 3
DRS 1
10-K 3
ARS 2
5 4
4/A 1
CERT 1
S-1/A 1
144 29
SC 13G/A 23
DEFA14A 3
424B3 2
424B4 1
FWP 2
DRS/A 2
4 184
3 27
DEF 14A 3
EFFECT 2
S-1 1
PRE 14A 1
D 1
SCHEDULE 13D/A 1
Financials Total:35
Form Type Act Filing Date Report Date Action
8-K 34 04/01/2025 03/28/2025 |    |  
8-K 34 11/07/2024 11/07/2024 |    |  
8-K 34 08/05/2024 08/05/2024 |    |  
8-K 34 06/12/2024 06/11/2024 |    |  
8-K 34 05/24/2024 05/23/2024 |    |  
10-Q 34 05/09/2024 03/31/2024 |    |  
10-K 34 02/20/2024 12/31/2023 |    |  
10-Q 34 11/07/2023 09/30/2023 |    |  
8-K 34 11/07/2023 11/07/2023 |    |  
10-Q 34 08/08/2023 06/30/2023 |    |  
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Ipos Total:8
Form Type Act Filing Date Report Date Action
CORRESP 09/17/2021 05/09/2025
CORRESP 09/13/2021 05/09/2025
CORRESP 08/30/2021 05/09/2025
CORRESP 08/30/2021 05/09/2025
S-1 33 08/30/2021 05/09/2025
UPLOAD 08/27/2021 05/09/2025
UPLOAD 08/09/2021 05/09/2025
UPLOAD 07/19/2021 05/09/2025
Form Type Act Filing Date Report Date Action
4 04/08/2025 04/05/2025
4 04/08/2025 04/05/2025
4 02/26/2025 02/24/2025
4 02/25/2025 02/22/2025
3 02/25/2025 02/22/2025
4 02/24/2025 02/20/2025
4 12/16/2024 12/13/2024
4 11/19/2024 11/18/2024
4 11/19/2024 11/15/2024
4 11/19/2024 11/15/2024
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Form Type Act Filing Date Report Date Action
DEF 14A 34 04/25/2025 06/12/2025
SC 13G 34 02/14/2024 05/09/2025
SC 13G 34 02/09/2024 05/09/2025
SC 13G 34 01/29/2024 05/09/2025
DEF 14A 34 04/27/2023 05/09/2025
SC 13G 34 02/13/2023 05/09/2025
SC 13G 34 02/03/2023 05/09/2025
DEF 14A 34 04/25/2022 06/09/2022
SC 13D 34 03/07/2022 05/09/2025
SC 13G 34 02/14/2022 05/09/2025
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Form Type Act Filing Date Report Date Action
8-K 34 04/01/2025 03/28/2025 |    |  
8-K 34 11/07/2024 11/07/2024 |    |  
8-K 34 08/05/2024 08/05/2024 |    |  
8-K 34 06/12/2024 06/11/2024 |    |  
8-K 34 05/24/2024 05/23/2024 |    |  
8-K 34 11/07/2023 11/07/2023 |    |  
8-K 34 08/08/2023 08/08/2023 |    |  
8-K 34 06/09/2023 06/08/2023 |    |  
8-K 34 05/09/2023 05/09/2023 |    |  
8-K 34 05/05/2023 05/05/2023 |    |  
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Form Type Act Filing Date Report Date Action
DEF 14A 34 04/25/2025 06/12/2025
PRE 14A 34 04/15/2024 06/11/2024
DEF 14A 34 04/27/2023 05/09/2025
DEF 14A 34 04/25/2022 06/09/2022
Form Type Act Filing Date Report Date Action
S-1/A 33 09/13/2021 05/09/2025
S-1 33 08/30/2021 05/09/2025