Duolingo, Inc. — 4/A Filings
9 4/A filings on record
This page lists all 4/A filings submitted to the SEC by Duolingo, Inc. (DUOL), sorted by most recent first. Each row links to the full filing on EdgarLookup. Duolingo, Inc. has filed 9 4/A documents with the SEC since 2012. To view all SEC filings by Duolingo, Inc., see the full filings list.
All
10-K
10-Q
10-Q/A
144
3
4
4/A
424B4
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
D
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
S-1
S-1/A
S-8
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4/A | FORM 4/A | 0001628280-25-058005 | Dec 18, 2025 | Jun 11, 2025 |
| 4/A | FORM 4/A | 0001628280-25-058004 | Dec 18, 2025 | Jun 11, 2025 |
| 4/A | FORM 4/A | 0001562088-25-000071 | Apr 16, 2025 | Jun 28, 2024 |
| 4/A | FORM 4/A | 0001562088-24-000270 | Nov 27, 2024 | Nov 22, 2024 |
| 4/A | FORM 4/A SUBMISSION | 0001209191-22-017489 | Mar 9, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001562088-22-000023 | Feb 24, 2022 | Feb 15, 2022 |
| 4/A | FORM 4/A | 0001562088-22-000022 | Feb 24, 2022 | Feb 15, 2022 |
| 4/A | FORM 4/A | 0001562088-22-000021 | Feb 24, 2022 | Feb 15, 2022 |
| 4/A | FORM 4/A | 0001562088-22-000020 | Feb 24, 2022 | Feb 15, 2022 |