4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 25 Feb 2021
- Reporting date
- 23 Feb 2021
- SEC evidence
- Open document Open filing
- Next action
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Stephen Williamson reports
- Company location
- Waltham, MA
Stephen Williamson has filed 104 SEC EDGAR filings since 04 Aug 2015
SEC filing history
Showing 51-75 of 104 matching filings.
Per page
25
Current page
3
4
File 001-04858
4 filing
- Filing date
- 04 Nov 2020
- Reporting date
- 02 Nov 2020
- SEC evidence
- Open document Open filing
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 11 Sep 2020
- Reporting date
- 26 Aug 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 31 Aug 2020
- Reporting date
- 27 Aug 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 27 Aug 2020
- Reporting date
- 25 Aug 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 31 Jul 2020
- Reporting date
- 29 Jul 2020
- SEC evidence
- Open document Open filing
- Next action
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 02 Jun 2020
- Reporting date
- 01 Jun 2020
- SEC evidence
- Open document Open filing
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4
File 001-04858
4 filing
- Filing date
- 08 May 2020
- Reporting date
- 06 May 2020
- SEC evidence
- Open document Open filing
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4
File 001-04858
4 filing
- Filing date
- 05 May 2020
- Reporting date
- 01 May 2020
- SEC evidence
- Open document Open filing
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 05 Mar 2020
- Reporting date
- 04 Mar 2020
- SEC evidence
- Open document Open filing
- Next action
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 04 Mar 2020
- Reporting date
- 02 Mar 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 28 Feb 2020
- Reporting date
- 27 Feb 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 27 Feb 2020
- Reporting date
- 25 Feb 2020
- SEC evidence
- Open document Open filing
- Next action
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 05 Feb 2020
- Reporting date
- 03 Feb 2020
- SEC evidence
- Open document Open filing
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4
File 001-04858
4 filing
- Filing date
- 05 Nov 2019
- Reporting date
- 01 Nov 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 29 Aug 2019
- Reporting date
- 27 Aug 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 27 Aug 2019
- Reporting date
- 24 Aug 2019
- SEC evidence
- Open document Open filing
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4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 04 Jun 2019
- Reporting date
- 03 Jun 2019
- SEC evidence
- Open document Open filing
- Next action
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4
File 001-04858
4 filing
- Filing date
- 03 May 2019
- Reporting date
- 01 May 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 05 Mar 2019
- Reporting date
- 04 Mar 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 01 Mar 2019
- Reporting date
- 28 Feb 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 28 Feb 2019
- Reporting date
- 26 Feb 2019
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
5
File 001-04858
5 filing
- Filing date
- 14 Feb 2019
- Reporting date
- 31 Dec 2018
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-08002
PRIMARY DOCUMENT
- Filing date
- 11 Dec 2018
- Reporting date
- 07 Dec 2018
- SEC evidence
- Open document Open filing
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4
File 001-04858
4 filing
- Filing date
- 02 Nov 2018
- Reporting date
- 31 Oct 2018
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing