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SPRO        0001701108    
Filing Date Form Type Description Document
2021-08-05 10-Q 10-Q View Document
2021-07-14 D View Document
2021-07-09 SC 13G SC 13G SPERO THERAPEUTICS, INC. View Document
2021-07-06 DEF 14A DEF 14A View Document
2021-07-01 8-K 8-K View Document
2021-06-25 PRE 14A PRE 14A View Document
2021-05-06 8-K 8-K View Document
2021-05-06 10-Q 10-Q Q1 2021 View Document
2021-03-29 EFFECT View Document
2021-03-24 CORRESP View Document
2021-03-23 10-K/A 10-K/A View Document
2021-03-17 UPLOAD View Document
2021-03-11 S-8 S-8 View Document
2021-03-11 S-3 S-3 View Document
2021-03-11 8-K 8-K View Document
2021-03-11 10-K 10-K View Document
2021-02-16 SC 13D/A AMENDED ACQUISITION OF BENEFICIAL OWNERSHIP View Document
2021-02-16 SC 13G/A View Document
2021-02-16 SC 13G/A AMENDMENT NO. 3 TO THE SCHEDULE 13G View Document
2021-02-10 SC 13G/A SC 13G/A View Document
2021-02-10 4 PRIMARY DOCUMENT View Document
2021-02-05 8-K 8-K View Document
2021-02-04 4 PRIMARY DOCUMENT View Document
2021-02-03 4 FORM 4 SUBMISSION View Document
2021-02-03 4 FORM 4 SUBMISSION View Document
2021-02-03 4 FORM 4 SUBMISSION View Document
2021-02-03 4 FORM 4 SUBMISSION View Document
2021-02-02 SC 13G View Document
2021-02-02 SC 13G/A SC 13G/A View Document
2021-01-19 8-K 8-K View Document
2021-01-06 4 FORM 4 SUBMISSION View Document
2021-01-06 4 FORM 4 SUBMISSION View Document
2021-01-06 4 FORM 4 SUBMISSION View Document
2021-01-06 4 FORM 4 SUBMISSION View Document
2021-01-05 4 FORM 4 SUBMISSION View Document
2021-01-05 3 FORM 3 SUBMISSION View Document
2020-12-18 4 PRIMARY DOCUMENT View Document
2020-12-18 4 FORM 4 SUBMISSION View Document
2020-12-17 8-K 8-K View Document
2020-12-07 SC 13D/A AMENDMENT NO. 5 TO SC 13D View Document
2020-12-03 8-K 8-K View Document
2020-12-02 4 FORM 4 SUBMISSION View Document
2020-12-02 3 FORM 3 SUBMISSION View Document
2020-11-13 424B5 424B5 View Document
2020-11-10 4 PRIMARY DOCUMENT View Document
2020-11-06 4 PRIMARY DOCUMENT View Document
2020-11-05 4 FORM 4 SUBMISSION View Document
2020-11-05 8-K 8-K View Document
2020-11-05 10-Q 10-Q View Document
2020-10-28 8-K 8-K View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-27 4 FORM 4 SUBMISSION View Document
2020-10-15 4 FORM 4 SUBMISSION View Document
2020-09-30 DEF 14A DEF 14A View Document
2020-09-23 SC 13G/A View Document
2020-09-22 3 PRIMARY DOCUMENT View Document
2020-09-16 8-K 8-K View Document
2020-09-14 8-K 8-K View Document
2020-09-14 424B5 424B5 View Document
2020-09-10 4 FORM 4 SUBMISSION View Document
2020-09-09 424B5 424B5 View Document
2020-09-09 8-K 8-K View Document
2020-09-08 8-K 8-K View Document
2020-08-06 S-8 S-8 View Document
2020-08-06 8-K 8-K View Document
2020-08-06 10-Q 10-Q View Document
2020-07-09 4 FORM 4 SUBMISSION View Document
2020-06-29 4 FORM 4 SUBMISSION View Document
2020-06-23 4 FORM 4 SUBMISSION View Document
2020-06-04 SC 13D/A AMENDMENT TO FORM SC 13D View Document
2020-06-04 8-K 8-K View Document
2020-05-11 8-K/A 8-K/A View Document
2020-05-08 8-K 8-K View Document
2020-05-08 10-Q 10-Q View Document
2020-04-23 3 FORM 3 SUBMISSION View Document
2020-04-16 8-K 8-K View Document
2020-03-19 S-8 S-8 View Document
2020-03-16 8-K 8-K View Document
2020-03-16 10-K 10-K View Document
2020-02-28 8-K 8-K View Document
2020-02-18 SC 13G/A AMENDMENT NO. 2 TO THE SCHEDULE 13G View Document
2020-02-14 SC 13D/A AMENDMENT TO FORM SC 13D View Document
2020-02-14 SC 13G/A View Document
2020-02-11 8-K 8-K View Document
2020-02-11 424B5 424B5 View Document
2020-02-04 SC 13G/A SCHEDULE 13G/A View Document
2020-02-03 4 FORM 4 SUBMISSION View Document
2020-02-03 4 FORM 4 SUBMISSION View Document
2020-02-03 4 FORM 4 SUBMISSION View Document
2020-02-03 4 FORM 4 SUBMISSION View Document
2020-01-31 SC 13G/A SC 13G/A View Document
2020-01-30 8-K 8-K View Document
2020-01-13 3 FORM 3 SUBMISSION View Document
2020-01-06 4 FORM 4 SUBMISSION View Document

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