Knowles Corp — 4/A Filings
6 4/A filings on record
This page lists all 4/A filings submitted to the SEC by Knowles Corp (KN), sorted by most recent first. Each row links to the full filing on EdgarLookup. Knowles Corp has filed 6 4/A documents with the SEC since 2013. To view all SEC filings by Knowles Corp, see the full filings list.
All
10-12B
10-12B/A
10-K
10-Q
11-K
144
15-15D
3
4
4/A
424B3
425
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
DEFC14A
DFAN14A
EFFECT
PRE 14A
PREC14A
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-T
SC TO-T/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4/A | PRIMARY DOCUMENT | 0001598318-25-000004 | Nov 24, 2025 | Nov 21, 2025 |
| 4/A | PRIMARY DOCUMENT | 0001587523-23-000005 | Jan 20, 2023 | Jan 5, 2023 |
| 4/A | PRIMARY DOCUMENT | 0001587523-23-000004 | Jan 20, 2023 | Jan 6, 2023 |
| 4/A | PRIMARY DOCUMENT | 0001587523-23-000003 | Jan 20, 2023 | Dec 14, 2022 |
| 4/A | PRIMARY DOCUMENT | 0001127602-19-022037 | Jun 18, 2019 | May 31, 2019 |
| 4/A | PRIMARY DOCUMENT | 0001127602-16-042420 | Feb 19, 2016 | Feb 15, 2016 |