MANCHESTER MANAGEMENT CO LLC reports

Company location: Boston, MA
Fiscal year end: 31 December

MANCHESTER MANAGEMENT CO LLC has filed 147 SEC EDGAR filings since 15 Mar 2002

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SC13G

SEC filing history

Showing 1-25 of 138 matching filings.

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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 12 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 12 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 17 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 17 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 15 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42552

4 filing

Filing date: 15 Dec 2025
Reporting date: 11 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-42552

4/A filing

Filing date: 11 Dec 2025
Reporting date: 08 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 10 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42552

4 filing

Filing date: 10 Dec 2025
Reporting date: 08 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 13 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41277

4 filing

Filing date: 28 Apr 2025
Reporting date: 24 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 07 Apr 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 24 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41277

4 filing

Filing date: 24 Mar 2025
Reporting date: 20 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Feb 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41277

4 filing

Filing date: 04 Dec 2024
Reporting date: 03 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41277

4 filing

Filing date: 29 Nov 2024
Reporting date: 27 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41277

4 filing

Filing date: 25 Nov 2024
Reporting date: 21 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-41277

4/A filing

Filing date: 25 Nov 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SC 13D/A filing

Filing date: 25 Nov 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-52985

4 filing

Filing date: 23 Oct 2024
Reporting date: 18 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-52985

4 filing

Filing date: 23 Oct 2024
Reporting date: 18 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-52985

4 filing

Filing date: 23 Oct 2024
Reporting date: 18 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SC 13D/A filing

Filing date: 22 Oct 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SC 13D/A filing

Filing date: 24 Jun 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing