HARVARD BIOSCIENCE INC — DEFA14A Filings
17 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by HARVARD BIOSCIENCE INC (HBIO), sorted by most recent first. Each row links to the full filing on EdgarLookup. HARVARD BIOSCIENCE INC has filed 17 DEFA14A documents with the SEC since 2007. To view all SEC filings by HARVARD BIOSCIENCE INC, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
3
3/A
4
4/A
424B3
424B4
425
5
5/A
8-A12B
8-A12B/A
8-A12G
8-K
8-K/A
ARS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFR14A
EFFECT
NT 10-K
NT 10-Q
PRE 14A
S-1
S-1/A
S-3
S-3/A
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001171843-25-002342 | Apr 21, 2025 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-24-001814 | Apr 3, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-22-002449 | Apr 7, 2022 | — |
| DEFA14A | DEFA14A | 0001171843-21-002395 | Apr 8, 2021 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-20-003996 | May 26, 2020 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-20-002964 | Apr 28, 2020 | — |
| DEFA14A | DEFA14A | 0001171843-19-002258 | Apr 5, 2019 | — |
| DEFA14A | DEFA14A | 0001171843-18-002568 | Apr 6, 2018 | — |
| DEFA14A | DEFA14A | 0001171843-17-002991 | May 11, 2017 | — |
| DEFA14A | DEFA14A | 0001171843-17-001987 | Apr 5, 2017 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-16-010002 | May 12, 2016 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-15-002391 | Apr 30, 2015 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-15-001905 | Apr 10, 2015 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001171843-14-001651 | Apr 10, 2014 | — |
| DEFA14A | DEFA14A | 0001193125-13-152760 | Apr 12, 2013 | — |
| DEFA14A | NOTICE OF AVAILABILITY | 0001193125-12-162095 | Apr 13, 2012 | — |
| DEFA14A | NOTICE OF AVAILABILITY | 0001193125-11-099221 | Apr 15, 2011 | — |