Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001193125-21-091148
Filing Date
2021-03-23
Accepted
2021-03-23 16:02:03
Documents
3
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K/A d128408d10ka.htm 10-K/A 388485
2 EX-31.1 d128408dex311.htm EX-31.1 3242
3 EX-31.2 d128408dex312.htm EX-31.2 3260
  Complete submission text file 0001193125-21-091148.txt   396124
Mailing Address 675 MASSACHUSETTS AVENUE 14TH FLOOR CAMBRIDGE MA 02139
Business Address 675 MASSACHUSETTS AVENUE 14TH FLOOR CAMBRIDGE MA 02139 857-242-1600
Spero Therapeutics, Inc. (Filer) CIK: 0001701108 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-38266 | Film No.: 21764785
SIC: 2834 Pharmaceutical Preparations