NEWMARKET CORP — DEFA14A Filings
23 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by NEWMARKET CORP (NEU), sorted by most recent first. Each row links to the full filing on EdgarLookup. NEWMARKET CORP has filed 23 DEFA14A documents with the SEC since 2006. To view all SEC filings by NEWMARKET CORP, see the full filings list.
All
10-K
10-Q
11-K
144
3
3/A
4
4/A
424B3
424B5
5
5/A
8-A12B
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
PRE 14A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001193125-26-102977 | Mar 12, 2026 | — |
| DEFA14A | DEFA14A | 0001193125-25-052429 | Mar 12, 2025 | — |
| DEFA14A | DEFA14A | 0001193125-24-064263 | Mar 11, 2024 | — |
| DEFA14A | DEFA14A | 0001193125-23-066648 | Mar 10, 2023 | — |
| DEFA14A | DEFA14A | 0001193125-22-072551 | Mar 11, 2022 | — |
| DEFA14A | DEFA14A | 0001193125-21-076932 | Mar 11, 2021 | — |
| DEFA14A | DEFA14A | 0001564590-20-014955 | Apr 2, 2020 | — |
| DEFA14A | DEFA14A | 0001193125-20-069224 | Mar 11, 2020 | — |
| DEFA14A | DEFA14A | 0001193125-19-072204 | Mar 13, 2019 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-18-080744 | Mar 13, 2018 | — |
| DEFA14A | DEFA14A | 0001193125-17-080465 | Mar 13, 2017 | — |
| DEFA14A | DEFA14A | 0001193125-16-502767 | Mar 14, 2016 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-15-087356 | Mar 11, 2015 | — |
| DEFA14A | NOTICE AND ACCESS | 0001193125-14-091649 | Mar 10, 2014 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-13-102598 | Mar 12, 2013 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-12-111249 | Mar 13, 2012 | — |
| DEFA14A | ADDITIONAL MATERIALS | 0001193125-11-058687 | Mar 8, 2011 | — |
| DEFA14A | DEFA14A | 0001193125-10-042889 | Feb 26, 2010 | — |
| DEFA14A | ADDITIONAL PROXY MATERIALS | 0001193125-09-053109 | Mar 13, 2009 | — |
| DEFA14A | ADDITIONAL DEFINITIVE MATERIALS | 0001193125-08-052395 | Mar 11, 2008 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-07-068149 | Mar 29, 2007 | — |
| DEFA14A | ADDTIONAL PROXY MATERIALS | 0001193125-06-064967 | Mar 28, 2006 | — |
| DEFA14A | ADDITIONAL MATERIALS | 0001193125-05-078603 | Apr 18, 2005 | — |