Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Holliston, MA
SEC filing record 1 source field available
Fiscal year end
31 December
HARVARD BIOSCIENCE INC has filed 1,293 SEC EDGAR filings since 18 Sep 2000

SEC filing history

Showing 26-50 of 887 matching filings.

Per page
25
Current page
2
SCHEDULE 13G/A File 005-60603

SCHEDULE 13G/A filing

Filing date
12 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
EFFECT File 333-293099

EFFECT filing

Filing date
09 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
424B3 File 333-293099

FORM 424B3

Filing date
09 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEF 14A File 001-33957

DEF 14A

Filing date
30 Jan 2026
Reporting date
06 Mar 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
PRE 14A File 001-33957

PRE 14A

Filing date
20 Jan 2026
Reporting date
20 Jan 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
4

4 filing

Filing date
30 Dec 2025
Reporting date
17 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
3

3 filing

Filing date
30 Dec 2025
Reporting date
17 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-60603

SCHEDULE 13G/A filing

Filing date
03 Nov 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

4 filing

Filing date
07 Oct 2025
Reporting date
05 Sep 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
3

3 filing

Filing date
07 Oct 2025
Reporting date
05 Sep 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
4

OWNERSHIP DOCUMENT

Filing date
19 Aug 2025
Reporting date
15 Aug 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
4

OWNERSHIP DOCUMENT

Filing date
11 Aug 2025
Reporting date
08 Aug 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .