Spero Therapeutics, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Cambridge, MA
SEC filing record 1 source field available
Fiscal year end
31 December
Spero Therapeutics, Inc. has filed 508 SEC EDGAR filings since 21 Mar 2017

SEC filing history

Showing 326-350 of 508 matching filings.

Per page
25
Current page
14
424B5 File 333-228661

424B5

Filing date
14 Sep 2020
Reporting date
Not listed
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4

FORM 4 SUBMISSION

Filing date
10 Sep 2020
Reporting date
08 Sep 2020
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424B5 File 333-228661

424B5

Filing date
09 Sep 2020
Reporting date
Not listed
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S-8 File 333-241681

S-8

Filing date
06 Aug 2020
Reporting date
Not listed
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4

FORM 4 SUBMISSION

Filing date
09 Jul 2020
Reporting date
07 Jul 2020
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4

FORM 4 SUBMISSION

Filing date
29 Jun 2020
Reporting date
22 Jun 2020
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4

FORM 4 SUBMISSION

Filing date
23 Jun 2020
Reporting date
23 Jun 2020
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SC 13D/A File 005-90168

AMENDMENT TO FORM SC 13D

Filing date
04 Jun 2020
Reporting date
Not listed
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8-K File 001-38266

8-K

Filing date
04 Jun 2020
Reporting date
04 Jun 2020
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8-K/A File 001-38266

8-K/A

Filing date
11 May 2020
Reporting date
16 Apr 2020
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8-K File 001-38266

8-K

Filing date
08 May 2020
Reporting date
08 May 2020
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3

FORM 3 SUBMISSION

Filing date
23 Apr 2020
Reporting date
16 Apr 2020
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8-K File 001-38266

8-K

Filing date
16 Apr 2020
Reporting date
16 Apr 2020
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S-8 File 333-237283

S-8

Filing date
19 Mar 2020
Reporting date
Not listed
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8-K File 001-38266

8-K

Filing date
16 Mar 2020
Reporting date
16 Mar 2020
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8-K File 001-38266

8-K

Filing date
28 Feb 2020
Reporting date
28 Feb 2020
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SC 13G/A File 005-90168

AMENDMENT NO. 2 TO THE SCHEDULE 13G

Filing date
18 Feb 2020
Reporting date
Not listed
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SC 13D/A File 005-90168

AMENDMENT TO FORM SC 13D

Filing date
14 Feb 2020
Reporting date
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